ci: make release publication idempotent

- nfpm.yaml: type:config → config_noreplace (RPM noreplace semantics)
- nfpm.yaml: type:ghost → type:dir for /var/lib/fenris (deb compatibility)
- postinst.sh/rpm/post.sh: fix timer restart — capture running unit before
  daemon-reload so the diff actually detects changes
- README: fix Python floor to ≥3.10 (was ≥3.9, inconsistent with Makefile)
- signing-key-ceremony.md: fix stale claim about nfpm signing RPMs
  (actual path is post-build rpmsign)
- tests/conftest.py: extract shared _get_version() and _read() helpers
- tests: wire up to shared conftest helpers
- release.yml: extract VERSION once via GITHUB_OUTPUT step

Co-authored-by: CommandCodeBot <noreply@commandcode.ai>

.gitea/workflows/release.yml

@@ -1,12 +1,19 @@
-# Fenris release workflow — dormant (no runner registered yet).
+# Fenris release workflow — release path on Coolify-hosted Gitea runner.
-# When a runner is provisioned, this replicates `make release` automatically.
+# The runner is repository-scoped and executes package build, signing, validation,
-# Spec: §5, §34
+# registry publication, and release attachment. Spec: §5, issue #52
 name: Release
 
 on:
   push:
     tags:
       - 'v*'
+  workflow_dispatch:
+
+# Built-in Gitea token needs write access for release assets and package registry.
+permissions:
+  contents: read
+  releases: write
+  packages: write
 
 jobs:
   release:
@@ -20,18 +27,161 @@ jobs:
           python-version: '3.12'
 
       - name: Install build dependencies
-        run: pip install build nfpm
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gnupg2 rpm python3-venv
+          python3 -m venv /tmp/fenris-ci
+          /tmp/fenris-ci/bin/pip install --quiet build
+          echo "/tmp/fenris-ci/bin" >> "$GITHUB_PATH"
+          NFPM_VERSION=2.47.0
+          curl --fail --silent --show-error --location \
+            "https://github.com/goreleaser/nfpm/releases/download/v${NFPM_VERSION}/nfpm_${NFPM_VERSION}_Linux_x86_64.tar.gz" \
+            -o /tmp/nfpm.tar.gz
+          sudo tar -xzf /tmp/nfpm.tar.gz -C /usr/local/bin nfpm
+          nfpm --version
 
       - name: Build packages
         run: make package
 
-      - name: List artifacts
+      - name: Import packaging key
-        run: ls -la dist/
+        env:
+          GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
+        run: |
+          set -euo pipefail
+          if [ -z "${GPG_PRIVATE_KEY}" ]; then
+            echo "::error::GPG_PRIVATE_KEY repository secret is not configured"
+            exit 1
+          fi
+          printf '%s\n' "${GPG_PRIVATE_KEY}" | gpg --batch --import
+          SECRET_FINGERPRINT="$(gpg --batch --list-secret-keys --with-colons 'packaging@bongbetic.com' | awk -F: '$1 == "fpr" { print $10; exit }')"
+          PUBLIC_FINGERPRINT="$(gpg --batch --show-keys --with-colons packaging/keys/fenris-packaging.asc | awk -F: '$1 == "fpr" { print $10; exit }')"
+          if [ -z "${PUBLIC_FINGERPRINT}" ]; then
+            echo "::error::packaging/keys/fenris-packaging.asc has no OpenPGP key"
+            exit 1
+          fi
+          if [ "${SECRET_FINGERPRINT}" != "${PUBLIC_FINGERPRINT}" ]; then
+            echo "::error::packaging public key does not match imported private key"
+            exit 1
+          fi
+          echo "Packaging key fingerprint verified: ${PUBLIC_FINGERPRINT}"
 
-      # Signing and upload are manual steps — this workflow confirms
+      - name: Sign RPM payload
-      # the build succeeds.  The maintainer completes the release.
+        run: make sign-rpm
-      - name: Upload artifacts
+
-        uses: actions/upload-artifact@v4
+      - name: Generate and clearsign SHA256SUMS
-        with:
+        run: |
-          name: fenris-packages
+          set -euo pipefail
-          path: dist/
+          VERSION="$(sed -n 's/^version = "\(.*\)"/\1/p' pyproject.toml)"
+          cd dist
+          sha256sum "fenris_${VERSION}_amd64.deb" \
+            "fenris-${VERSION}-1.x86_64.rpm" > SHA256SUMS
+          gpg --batch --yes --clearsign --local-user packaging@bongbetic.com SHA256SUMS
+
+      - name: Validate signatures and checksums
+        run: |
+          set -euo pipefail
+          VERSION="$(sed -n 's/^version = "\(.*\)"/\1/p' pyproject.toml)"
+          RPM="fenris-${VERSION}-1.x86_64.rpm"
+          RPM_VERIFY="$(rpm -Kv "dist/${RPM}" 2>&1)"
+          printf '%s\n' "${RPM_VERIFY}"
+          printf '%s\n' "${RPM_VERIFY}" | grep -Eiq 'signature.*: *ok'
+          gpg --batch --verify dist/SHA256SUMS.asc
+          (cd dist && sha256sum -c SHA256SUMS)
+
+      - name: Remove packaging key material
+        if: always()
+        run: |
+          set +e
+          FINGERPRINT="$(gpg --batch --list-secret-keys --with-colons 'packaging@bongbetic.com' 2>/dev/null | awk -F: '$1 == "fpr" { print $10; exit }')"
+          if [ -n "${FINGERPRINT}" ]; then
+            gpg --batch --yes --delete-secret-keys "${FINGERPRINT}"
+            gpg --batch --yes --delete-keys "${FINGERPRINT}"
+          fi
+
+      - name: Determine version
+        id: version
+        run: echo "version=$(sed -n 's/^version = "\(.*\)"/\1/p' pyproject.toml)" >> "$GITHUB_OUTPUT"
+
+      - name: Upload deb packages to registry
+        env:
+          GITEA_PUBLISH_TOKEN: ${{ secrets.GITEAPACKAGETOKEN }}
+        run: |
+          set -euo pipefail
+          if [ -z "${GITEA_PUBLISH_TOKEN}" ]; then
+            echo "::error::GITEAPACKAGETOKEN repository secret is not configured"
+            exit 1
+          fi
+          VERSION=${{ steps.version.outputs.version }}
+          DEB="fenris_${VERSION}_amd64.deb"
+          for CODENAME in bookworm jammy noble; do
+            STATUS=$(curl --silent --show-error --user "xavierk:${GITEA_PUBLISH_TOKEN}" -X PUT \
+              -T "dist/${DEB}" -o /dev/null -w '%{http_code}' \
+              "https://git.bongbetic.com/api/packages/xavierk/debian/pool/${CODENAME}/main/upload" || true)
+            case "${STATUS}" in
+              200|201|204) echo "Debian ${CODENAME}: uploaded" ;;
+              409) echo "Debian ${CODENAME}: already exists, kept existing package" ;;
+              *) echo "::error::Debian ${CODENAME} upload failed with HTTP ${STATUS}"; exit 1 ;;
+            esac
+          done
+
+      - name: Upload RPM to registry
+        env:
+          GITEA_PUBLISH_TOKEN: ${{ secrets.GITEAPACKAGETOKEN }}
+        run: |
+          set -euo pipefail
+          VERSION=${{ steps.version.outputs.version }}
+          RPM="fenris-${VERSION}-1.x86_64.rpm"
+          STATUS=$(curl --silent --show-error --user "xavierk:${GITEA_PUBLISH_TOKEN}" -X PUT \
+            -T "dist/${RPM}" -o /dev/null -w '%{http_code}' \
+            "https://git.bongbetic.com/api/packages/xavierk/rpm/fenris/upload" || true)
+          case "${STATUS}" in
+            200|201|204) echo "RPM: uploaded" ;;
+            409) echo "RPM: already exists, kept existing package" ;;
+            *) echo "::error::RPM upload failed with HTTP ${STATUS}"; exit 1 ;;
+          esac
+
+      - name: Create Gitea release
+        env:
+          GITEA_PUBLISH_TOKEN: ${{ secrets.GITEAPACKAGETOKEN }}
+        run: |
+          VERSION=${{ steps.version.outputs.version }}
+          # Check if release already exists (idempotent re-runs)
+          EXISTING=$(curl -s -o /dev/null -w '%{http_code}' \
+            -H "Authorization: token ${GITEA_PUBLISH_TOKEN}" \
+            "https://git.bongbetic.com/api/v1/repos/xavierk/Fenris/releases/tags/v${VERSION}")
+          if [ "$EXISTING" = "200" ]; then
+            echo "Release v${VERSION} already exists, skipping creation"
+          else
+            curl --fail -X POST \
+              -H "Authorization: token ${GITEA_PUBLISH_TOKEN}" \
+              -H "Content-Type: application/json" \
+              -d "{\"tag_name\":\"v${VERSION}\",\"name\":\"v${VERSION}\"}" \
+              "https://git.bongbetic.com/api/v1/repos/xavierk/Fenris/releases"
+          fi
+
+      - name: Attach artifacts to release
+        env:
+          GITEA_PUBLISH_TOKEN: ${{ secrets.GITEAPACKAGETOKEN }}
+        run: |
+          set -euo pipefail
+          VERSION=${{ steps.version.outputs.version }}
+          # Get release ID for this tag
+          RELEASE_JSON=$(curl --fail --silent --show-error \
+            -H "Authorization: token ${GITEA_PUBLISH_TOKEN}" \
+            "https://git.bongbetic.com/api/v1/repos/xavierk/Fenris/releases/tags/v${VERSION}")
+          RELEASE_ID=$(printf '%s' "${RELEASE_JSON}" \
+            | python3 -c "import sys,json; print(json.load(sys.stdin)['id'])")
+          # Attach deb, rpm, and clearsigned checksums once.
+          for FILE in "dist/fenris_${VERSION}_amd64.deb" \
+                       "dist/fenris-${VERSION}-1.x86_64.rpm" \
+                       "dist/SHA256SUMS.asc"; do
+            ASSET_NAME="${FILE##*/}"
+            if python3 -c 'import json,sys; name=sys.argv[1]; sys.exit(0 if any(a.get("name") == name for a in json.load(sys.stdin).get("assets", [])) else 1)' "${ASSET_NAME}" <<<"${RELEASE_JSON}"; then
+              echo "${ASSET_NAME}: already attached"
+            else
+              curl --fail --silent --show-error -X POST \
+                -H "Authorization: token ${GITEA_PUBLISH_TOKEN}" \
+                -F "attachment=@${FILE}" \
+                "https://git.bongbetic.com/api/v1/repos/xavierk/Fenris/releases/${RELEASE_ID}/assets"
+            fi
+          done

Makefile

@@ -17,7 +17,7 @@ MANIFEST := $(DATA_DIR)/manifest.txt
 # Legacy history path (IN-4)
 LEGACY_HISTORY := ./data/history.jsonl
 
-.PHONY: help install upgrade uninstall purge update-deps test lint check-python check-smartctl import-legacy stage package-deb package-rpm package release clean
+.PHONY: help install upgrade uninstall purge update-deps test lint check-python check-smartctl import-legacy stage package-deb package-rpm package generate-test-key sign-rpm checksums clearsign release release-run release-dry-run clean
 
 help:
 	@echo "Fenris NVMe endurance monitor"
@@ -34,14 +34,20 @@ help:
 	@echo "  package      - Build deb + rpm packages"
 	@echo "  package-deb  - Build deb package only"
 	@echo "  package-rpm  - Build rpm package only"
-	@echo "  release      - Full release (build, sign, attach)"
+	@echo "  generate-test-key  - Create throwaway GPG key for CI/testing"
+	@echo "  sign-rpm     - Sign RPM payload with packaging key"
+	@echo "  checksums    - Generate SHA256SUMS manifest"
+	@echo "  clearsign    - Clearsign SHA256SUMS with packaging key"
+	@echo "  release      - Full release (build, sign, checksum, print upload steps)"
+	@echo "  release-run  - Execute the full release flow via scripts/release.sh"
+	@echo "  release-dry-run - Dry-run of the release flow (prints commands only)"
 	@echo "  clean        - Remove build artifacts"
 
 # ─── Pre-install gates ──────────────────────────────────────────────────────
 
 check-python:
-	@echo "=== Verifying Python ≥ 3.9 ==="
+	@echo "=== Verifying Python ≥ 3.10 ==="
-	@$(PYTHON) -c "import sys; v=sys.version_info; exit(0 if (v>=(3,9)) else 1)" || { echo "Error: Python 3.9+ required (found $$($(PYTHON) --version 2>&1))"; exit 1; }
+	@$(PYTHON) -c "import sys; v=sys.version_info; exit(0 if (v>=(3,10)) else 1)" || { echo "Error: Python 3.10+ required (found $$($(PYTHON) --version 2>&1))"; exit 1; }
 
 check-smartctl:
 	@echo "=== Verifying smartctl ==="
@@ -223,11 +229,14 @@ lint:
 update-deps:
 	$(PYTHON) -m pip compile pyproject.toml -o requirements.txt
 
-# ─── Packaging (spec §3, §5) ────────────────────────────────────────────────
+# ─── Packaging (spec §3, §4, §5) ────────────────────────────────────────────
 
 # Version is sourced from pyproject.toml for both formats
 FENRIS_VERSION := $(shell sed -n 's/^version = "\(.*\)"/\1/p' pyproject.toml)
 
+# GPG signing — packaging key UID (spec §4)
+PACKAGING_KEY ?= packaging@bongbetic.com
+
 stage: dist/fenris-*.whl
 	@echo "=== Staging packaging tree (v$(FENRIS_VERSION)) ==="
 	bash packaging/stage.sh "$(FENRIS_VERSION)"
@@ -245,26 +254,79 @@ package-rpm: stage
 package: package-deb package-rpm
 	@echo "=== Both packages built in dist/ ==="
 
-release: package
+# ─── GPG key management ─────────────────────────────────────────────────────
-	@echo "=== Release v$(FENRIS_VERSION) ==="
+
-	@echo "Artifacts:"
+generate-test-key:
-	@ls -la dist/fenris_$(FENRIS_VERSION)_amd64.deb dist/fenris-$(FENRIS_VERSION)-1.x86_64.rpm 2>/dev/null
+	@echo "=== Generating throwaway test GPG key ==="
+	@echo "This key is for CI/testing only — never use for real releases."
+	printf '%%no-protection\nKey-Type: RSA\nKey-Length: 3072\nName-Real: Fenris Packaging (TESTING ONLY)\nName-Email: packaging-test@bongbetic.com\nExpire-Date: 0\n%%commit\n' | \
+		gpg --batch --gen-key
+	@echo "=== Test key created. Fingerprint: ==="
+	@gpg --fingerprint packaging-test@bongbetic.com
+
+# ─── Signing ────────────────────────────────────────────────────────────────
+
+sign-rpm: package-rpm
+	@echo "=== Signing RPM payload ==="
+	@rpm --import packaging/keys/fenris-packaging.asc 2>/dev/null || true
+	rpmsign --addsign --define "_gpg_name $(PACKAGING_KEY)" \
+		dist/fenris-$(FENRIS_VERSION)-1.x86_64.rpm
+	@echo "=== RPM signed ==="
+	@rpm -Kv dist/fenris-$(FENRIS_VERSION)-1.x86_64.rpm
+
+checksums: package
+	@echo "=== Generating SHA256SUMS ==="
+	cd dist && sha256sum fenris_$(FENRIS_VERSION)_amd64.deb \
+		fenris-$(FENRIS_VERSION)-1.x86_64.rpm > SHA256SUMS
+	@echo "=== SHA256SUMS written ==="
+	@cat dist/SHA256SUMS
+
+clearsign: checksums
+	@echo "=== Clearsigning SHA256SUMS ==="
+	gpg --batch --yes --clearsign --local-user $(PACKAGING_KEY) \
+		dist/SHA256SUMS
+	@echo "=== SHA256SUMS.asc written ==="
+
+# ─── Release (spec §5) ──────────────────────────────────────────────────────
+
+release: package sign-rpm clearsign
 	@echo ""
-	@echo "Manual steps (spec §5):"
+	@echo "=== Release v$(FENRIS_VERSION) ==="
-	@echo "  1. Import packaging key:  gpg --import <keyfile>"
+	@echo ""
-	@echo "  2. Sign RPM payload:      rpmsign --addsign dist/fenris-$(FENRIS_VERSION)-1.x86_64.rpm"
+	@echo "Artifacts:"
-	@echo "  3. Generate checksums:    cd dist && sha256sum fenris_$(FENRIS_VERSION)_amd64.deb fenris-$(FENRIS_VERSION)-1.x86_64.rpm > SHA256SUMS"
+	@ls -la dist/fenris_$(FENRIS_VERSION)_amd64.deb \
-	@echo "  4. Clearsign manifest:    gpg --clearsign dist/SHA256SUMS"
+		dist/fenris-$(FENRIS_VERSION)-1.x86_64.rpm \
-	@echo "  5. Upload to registry:"
+		dist/SHA256SUMS.asc 2>/dev/null
-	@echo "       curl -X PUT -u user:token -T dist/fenris_$(FENRIS_VERSION)_amd64.deb \\"
+	@echo ""
-	@echo "         'https://git.bongbetic.com/api/packages/xavierk/debian/pool/bookworm/main/upload'"
+	@echo "Verify signing (manual):"
-	@echo "       curl -X PUT -u user:token -T dist/fenris_$(FENRIS_VERSION)_amd64.deb \\"
+	@echo "  rpm -Kv dist/fenris-$(FENRIS_VERSION)-1.x86_64.rpm"
-	@echo "         'https://git.bongbetic.com/api/packages/xavierk/debian/pool/jammy/main/upload'"
+	@echo "  gpg --verify dist/SHA256SUMS.asc dist/SHA256SUMS"
-	@echo "       curl -X PUT -u user:token -T dist/fenris_$(FENRIS_VERSION)_amd64.deb \\"
+	@echo ""
-	@echo "         'https://git.bongbetic.com/api/packages/xavierk/debian/pool/noble/main/upload'"
+	@echo "Upload to registry:"
-	@echo "       curl -X PUT -u user:token -T dist/fenris-$(FENRIS_VERSION)-1.x86_64.rpm \\"
+	@echo "  curl -X PUT -u user:token -T dist/fenris_$(FENRIS_VERSION)_amd64.deb \\"
-	@echo "         'https://git.bongbetic.com/api/packages/xavierk/rpm/fenris/upload'"
+	@echo "    'https://git.bongbetic.com/api/packages/xavierk/debian/pool/bookworm/main/upload'"
-	@echo "  6. Create Gitea release with notes and attach .deb, .rpm, SHA256SUMS.asc"
+	@echo "  curl -X PUT -u user:token -T dist/fenris_$(FENRIS_VERSION)_amd64.deb \\"
+	@echo "    'https://git.bongbetic.com/api/packages/xavierk/debian/pool/jammy/main/upload'"
+	@echo "  curl -X PUT -u user:token -T dist/fenris_$(FENRIS_VERSION)_amd64.deb \\"
+	@echo "    'https://git.bongbetic.com/api/packages/xavierk/debian/pool/noble/main/upload'"
+	@echo "  curl -X PUT -u user:token -T dist/fenris-$(FENRIS_VERSION)-1.x86_64.rpm \\"
+	@echo "    'https://git.bongbetic.com/api/packages/xavierk/rpm/fenris/upload'"
+	@echo ""
+	@echo "Create Gitea release with notes and attach:"
+	@echo "  dist/fenris_$(FENRIS_VERSION)_amd64.deb"
+	@echo "  dist/fenris-$(FENRIS_VERSION)-1.x86_64.rpm"
+	@echo "  dist/SHA256SUMS.asc"
+	@echo ""
+	@echo "Key ceremony: delete the private key after upload."
+	@echo "  See docs/install/signing-key-ceremony.md"
+
+# ─── Automated release flow (issue #52) ──────────────────────────────────────
+
+release-run:
+	bash scripts/release.sh --publish
+
+release-dry-run:
+	bash scripts/release.sh --dry-run
 
 clean:
 	@echo "=== Cleaning build artifacts ==="

README.md

@@ -8,34 +8,109 @@ Fenris is a persistent TUI monitor backed by a short-lived privileged collector
 
 ## Requirements
 
-- **Python ≥ 3.9** (verified at install time)
+- **Python ≥ 3.10** (verified at install time)
 - **smartmontools** (`smartctl` — verified at install time)
 - **systemd** with a polkit agent (the collector runs as root oneshot; elevation is exclusively polkit)
 
 No other OS packages or Python dependencies beyond [Textual](https://textual.textualize.io/) (pinned in the lockfile).
 
-## Install
+## Install from package (recommended)
 
-```bash
+### Debian / Ubuntu (apt)
-sudo make install
+
+The Gitea instance Debian registry signs metadata with its own key. Verify the
+instance key fingerprint (TOFU hardening):
+
+```text
+Fingerprint: <print after first release — paste beside the curl one-liner>
 ```
 
-What it does:
+Add the instance key and repository:
-1. Builds a wheel from the checkout and installs it — with pinned dependencies — into the dedicated venv at `/opt/fenris`.
-2. Places the `fenris` wrapper in `/usr/local/bin`, helpers in `/usr/libexec/fenris`, systemd units in `/etc/systemd/system`, and the polkit policy in `/usr/share/polkit-1/actions/`.
-3. Creates `/var/lib/fenris` (root-written, group-readable) — the observation store is created lazily by the first collection run.
-4. Records every placed file in a manifest consumed by upgrade and uninstall.
-5. Detects `./data/history.jsonl` beside the source checkout and runs the idempotent legacy import if present.
 
-**A fresh install is fully dormant.** Units are present but disabled; nothing runs. The only opt-in is the sanctioned toggle:
+```bash
+sudo mkdir -p /etc/apt/keyrings
+sudo curl -fsSL -o /etc/apt/keyrings/gitea-xavierk.asc \
+  https://git.bongbetic.com/api/packages/xavierk/debian/repository.key
+
+echo "deb [signed-by=/etc/apt/keyrings/gitea-xavierk.asc] \
+  https://git.bongbetic.com/api/packages/xavierk/debian bookworm main" \
+  | sudo tee /etc/apt/sources.list.d/fenris.list
+
+sudo apt update && sudo apt install fenris
+```
+
+Replace `bookworm` with your distribution codename (`bookworm`, `jammy`, or
+`noble`).
+
+### Fedora (dnf)
+
+Use the Fenris-owned repo file (not Gitea's auto-generated one):
+
+```bash
+sudo dnf config-manager --add-repo \
+  https://git.bongbetic.com/xavierk/Fenris/raw/branch/main/packaging/fenris.repo
+
+sudo dnf install fenris
+```
+
+The repo file sets `gpgcheck=1` against the Fenris packaging key (downloaded
+from the raw URL in `gpgkey`) and `repo_gpgcheck=0` (metadata check left to
+TLS).
+
+### Package signature verification
+
+The RPM payload is signed with the Fenris packaging key (RSA 3072).
+Verification happens automatically via dnf's `gpgcheck=1`. For manual
+verification of downloaded assets:
+
+```bash
+rpm -Kv fenris-*.x86_64.rpm          # RPM payload signature
+gpg --verify SHA256SUMS.asc SHA256SUMS  # Clearsigned checksum manifest
+sha256sum -c SHA256SUMS                  # Checksum match
+```
+
+The packaging public key is published in-repo — no keyservers. See
+`packaging/keys/fenris-packaging.asc` and
+`docs/install/signing-key-ceremony.md` for key lifecycle details.
+
+### Dormant install
+
+A fresh package install is fully dormant. Units are present but disabled;
+nothing runs. The only opt-in is the sanctioned toggle:
 
 ```bash
 fenris monitor resume    # enable timer + open first monitoring period
 fenris monitor pause     # close the period, disable timer
 ```
 
+## Development install (make install)
+
+For contributors building from source:
+
+```bash
+sudo make install
+```
+
+This builds a wheel, installs it into `/opt/fenris` with pinned dependencies,
+and places helpers, units, and the polkit policy. Units are dormant by default.
+
+```bash
+sudo make upgrade    # re-sync wheel, units, schema
+make uninstall       # removes artifacts, preserves config and store
+make purge           # also removes /etc/fenris and /var/lib/fenris
+```
+
 ## Upgrade
 
+### Package upgrade
+
+```bash
+sudo apt update && sudo apt upgrade fenris    # Debian/Ubuntu
+sudo dnf upgrade fenris                       # Fedora
+```
+
+### Development upgrade
+
 ```bash
 sudo make upgrade
 ```
@@ -49,8 +124,26 @@ What it does:
 
 Rollback: reinstall the previous version and restore `observations.db.bak`.
 
+## Migration from make install
+
+If Fenris was previously installed with `sudo make uninstall` first, then
+installed from the package, existing config, store, and group survive by path
+continuity. Over-installing the package over a `make install` is
+**forbidden** — stale units shadow vendor placement. See
+[docs/install/migrate-from-makeinstall.md](docs/install/migrate-from-makeinstall.md).
+
 ## Uninstall and purge
 
+### Package removal
+
+```bash
+sudo apt remove fenris       # preserves config and store
+sudo apt purge fenris        # also removes config and store
+sudo dnf remove fenris       # preserves config and store
+```
+
+### Development removal
+
 ```bash
 make uninstall     # removes artifacts, preserves config and observation history
 make purge         # also removes /etc/fenris and /var/lib/fenris
@@ -110,17 +203,17 @@ Use a stable `/dev/disk/by-id/` path. Raw `/dev/nvmeX` paths are warned against.
 
 ## Where's my stuff?
 
-| Artifact | Location |
+| Artifact | Package install | make install |
-|---|---|
+|---|---|---|
-| Wrapper | `/usr/local/bin/fenris` |
+| Wrapper | `/usr/bin/fenris` | `/usr/local/bin/fenris` |
-| Helpers | `/usr/libexec/fenris/fenris-collect`, `fenris-monitor` |
+| Helpers | `/usr/libexec/fenris/` | `/usr/libexec/fenris/` |
-| Units | `/etc/systemd/system/fenris-collect.{timer,service}` |
+| Units | `/usr/lib/systemd/system/` (vendor) | `/etc/systemd/system/` |
-| Polkit policy | `/usr/share/polkit-1/actions/com.bongbetic.fenris.monitor.policy` |
+| Polkit policy | `/usr/share/polkit-1/actions/` | `/usr/share/polkit-1/actions/` |
-| Configuration | `/etc/fenris/fenris.conf` |
+| sysusers/tmpfiles | `/usr/lib/{sysusers,tmpfiles}.d/fenris.conf` | managed by Makefile |
-| Observation store | `/var/lib/fenris/observations.db` |
+| Configuration | `/etc/fenris/fenris.conf` | `/etc/fenris/fenris.conf` |
-| Venv | `/opt/fenris` |
+| Observation store | `/var/lib/fenris/observations.db` | `/var/lib/fenris/observations.db` |
-| Manifest | `/var/lib/fenris/manifest.txt` |
+| Venv | `/opt/fenris` | `/opt/fenris` |
-| Legacy history | `./data/history.jsonl` (auto-imported on install if present) |
+| Legacy history | — | `./data/history.jsonl` (auto-imported) |
 
 ---
 

docs/install/migrate-from-makeinstall.md

@@ -0,0 +1,87 @@
+# Migrating from make-install to packages
+
+This runbook covers the transition from a `sudo make install` system to the native deb or rpm package. Packages are the primary delivery; `make install` remains as the dev fallback. The two deliveries are **mutually exclusive** per machine.
+
+## Why over-install is forbidden
+
+Installing a package over a make-install system silently breaks things:
+
+- **Stale admin units shadow vendor units.** `make install` places `fenris-collect.timer` and `fenris-collect.service` in `/etc/systemd/system/`. The package installs them in `/usr/lib/systemd/system/` (vendor placement). Systemd loads admin units first — the stale copy takes precedence, and the package update never reaches the running system.
+- **The local wrapper shadows the package wrapper.** `make install` places the `fenris` wrapper at `/usr/local/bin/fenris`. The package places it at `/usr/bin/fenris`. The shell finds `/usr/local/bin` first on PATH — the old checkout-relative wrapper runs instead of the package wrapper.
+
+Neither condition is reversible by reinstalling the package. The only safe path is remove-then-install.
+
+## Pre-migration checklist
+
+1. Confirm no monitoring period is actively running that you want to preserve across the gap:
+   ```
+   fenris status
+   ```
+   The migration resets the system to dormant (see [No-move continuity](#no-move-continuity) below). You opt back in with `fenris monitor resume`.
+
+2. If you have hand-edited configuration at `/etc/fenris/fenris.conf`, note it. The config survives the migration in place (see below).
+
+## Remove step
+
+```
+sudo make uninstall
+```
+
+This performs the **sanctioned disable** (`fenris-monitor disable --now`), closing the current monitoring period as `user_disabled`. It then removes all make-install artifacts: the venv at `/opt/fenris`, the wrapper at `/usr/local/bin/fenris`, the helpers at `/usr/libexec/fenris/`, the units in `/etc/systemd/system/`, and the polkit policy. The placement manifest at `/var/lib/fenris/manifest.txt` is removed.
+
+**What survives the remove:**
+
+- `/var/lib/fenris/observations.db` (and WAL sidecars, `.bak`) — the observation store
+- `/var/lib/fenris/` directory itself — root-written, group-read
+- `/etc/fenris/fenris.conf` — your hand-written configuration
+- The `fenris` system group — created by `groupadd -f` during make-install
+- Journal entries — age out naturally
+
+## Install step
+
+```
+sudo apt install fenris       # Debian/Ubuntu
+sudo dnf install fenris       # Fedora
+```
+
+The package installs into its own layout without touching the surviving store, config, or group.
+
+## No-move continuity
+
+These invariants are verified by the containerized acceptance tests (issue #50):
+
+| Asset | Make-install state | Package post-install | Mechanism |
+|---|---|---|---|
+| `fenris` group | Exists (`groupadd -f`) | Unchanged | `systemd-sysusers` is a no-op when the group already exists |
+| `/var/lib/fenris` directory | Exists (mode 2750, root:fenris) | Unchanged | `systemd-tmpfiles --create` is a no-op when the directory already exists |
+| `observations.db` + sidecars | Present from prior monitoring | Unchanged, never owned by the package | Package owns the directory only; store contents are never ghosted |
+| `/etc/fenris/fenris.conf` | Hand-edited device selector | Survives in place; package default lands as `.dpkg-new` / `.rpmnew` | dpkg conffile / rpm `%config(noreplace)` semantics |
+| Store schema | Version from prior Fenris release | Caught up by the upgrade-path migration | `postinst` / `%post` runs `migrate_to_latest()` on upgrade |
+
+The package detects the make-install system has been removed by the absence of the two markers:
+- `/var/lib/fenris/manifest.txt` (the placement manifest)
+- `/etc/systemd/system/fenris-collect.timer` (pre-manifest make installs)
+
+If either marker exists, the package installation aborts with a pointer to this runbook.
+
+## Reset-to-dormant
+
+`make uninstall`'s sanctioned disable closes the open monitoring period as `user_disabled`. After the package install, the system is dormant — the timer is installed but disabled, nothing is running, no monitoring period is open.
+
+To resume monitoring:
+
+```
+fenris monitor resume
+```
+
+This is the sanctioned opt-in. It enables the timer and opens the first monitoring period in one step. The migration costs at most one short sample gap (the interval between `make uninstall` and `fenris monitor resume`), honestly recorded in the endurance timeline.
+
+## Verification
+
+After migration, confirm the package is correctly installed:
+
+```
+fenris status
+```
+
+The status command should show the dormant state: timer disabled, no active monitoring period, and the observation store intact from the prior make-install system.

docs/install/signing-key-ceremony.md

@@ -0,0 +1,230 @@
+# Signing key ceremony
+
+The Fenris packaging key signs RPM payloads and clearsigns SHA256SUMS manifests.
+This document describes the key's lifecycle: creation, per-release use, rotation,
+and destruction.
+
+## Key specification
+
+| Property | Value |
+|---|---|
+| Algorithm | RSA 3072 |
+| UID | `Fenris Packaging <packaging@bongbetic.com>` |
+| Expiry | 2 years from creation |
+| Hierarchy | Single key — no master/subkey split (single maintainer, manual builds) |
+| Private key storage | Password manager only |
+| Public key storage | `packaging/keys/fenris-packaging.asc` in-repo, release notes, docs |
+| Keyservers | Never — TOFU-over-TLS via raw URL |
+
+## First release: key creation
+
+```bash
+# Generate the dedicated RSA-3072 packaging key
+gpg --batch --gen-key <<EOF
+%no-protection
+Key-Type: RSA
+Key-Length: 3072
+Name-Real: Fenris Packaging
+Name-Email: packaging@bongbetic.com
+Expire-Date: 2y
+%commit
+EOF
+
+# Export the public half — this file is committed to the repo
+gpg --armor --export packaging@bongbetic.com > packaging/keys/fenris-packaging.asc
+
+# Print the fingerprint for docs and release notes
+gpg --fingerprint packaging@bongbetic.com
+```
+
+Save the **private key** to the password manager immediately:
+
+```bash
+gpg --armor --export-secret-keys packaging@bongbetic.com
+```
+
+Then **delete the private key from the local keyring** — it must never persist
+on any build host:
+
+```bash
+gpg --delete-secret-keys packaging@bongbetic.com
+gpg --delete-keys packaging@bongbetic.com
+```
+
+The committed `fenris-packaging.asc` must contain the real public key (replace
+the placeholder comments).
+
+## Per-release signing flow
+
+Each release performs: **import → sign → delete**. The private key is never
+stored on disk longer than the release takes.
+
+### Step 1: Import the private key
+
+Retrieve the private key from the password manager and import it:
+
+```bash
+gpg --import /tmp/packaging-key-private.asc
+rm /f /tmp/packaging-key-private.asc   # Shred if possible
+```
+
+### Step 2: Build and sign packages
+
+The Makefile target `make release` handles signing automatically when the
+key is in the keyring:
+
+```bash
+make release    # builds, signs RPM, clearsigns SHA256SUMS, prints upload steps
+```
+
+Under the hood:
+
+1. `rpmsign --addsign` signs the RPM payload with the packaging key
+   (invoked by `make sign-rpm`).
+2. `sha256sum` generates the checksum manifest.
+3. `gpg --clearsign` produces `SHA256SUMS.asc` with the packaging key.
+
+### Step 3: Delete the private key
+
+Immediately after signing:
+
+```bash
+gpg --delete-secret-keys packaging@bongbetic.com
+gpg --delete-keys packaging@bongbetic.com
+```
+
+Verify the key is gone:
+
+```bash
+gpg --list-keys packaging@bongbetic.com
+# Should produce: gpg: keyblock resource ...: No such file or directory
+```
+
+The entire import → sign → delete cycle should take minutes. The private key
+must never be left in any keyring between releases.
+
+## Key rotation (outline)
+
+When the key approaches expiry, or if it is compromised:
+
+1. **Generate a new key** using the same procedure as first release.
+2. **Publish the new public key** alongside the old one in-repo:
+   ```text
+   packaging/keys/fenris-packaging.asc          # new key (primary)
+   packaging/keys/fenris-packaging-previous.asc  # old key (one cycle)
+   ```
+3. **Sign the next RPM** with the new key.
+4. **Update `fenris.repo`** to list both `gpgkey` URLs (dnf accepts multiple):
+   ```ini
+   gpgkey=https://git.bongbetic.com/xavierk/Fenris/raw/branch/main/packaging/keys/fenris-packaging.asc
+         https://git.bongbetic.com/xavierk/Fenris/raw/branch/main/packaging/keys/fenris-packaging-previous.asc
+   ```
+5. **Drop the old key** from the repo after one release cycle. Delete
+   `fenris-packaging-previous.asc` and revert `gpgkey` to the single URL.
+
+## Verification
+
+Consumers verify the RPM payload signature via dnf (gpgcheck=1 in
+`fenris.repo` points at the published public key). The SHA256SUMS manifest
+verification is manual for downloaded assets:
+
+```bash
+gpg --verify SHA256SUMS.asc SHA256SUMS
+sha256sum -c SHA256SUMS
+```
+
+## One-time live probe
+
+Before the first real release, verify the full registry path end-to-end with a
+throwaway package. This confirms apt/dnf metadata generation, signature
+verification, and consumer setup work as a real consumer would experience them.
+
+### Setup
+
+```bash
+# Create a throwaway package name to avoid polluting fenris metadata
+PROBE_NAME="fenris-regtest"
+PROBE_VERSION="0.0.1"
+```
+
+### Publish
+
+```bash
+# Build a throwaway deb and rpm (use the existing nfpm config with a dummy name)
+# Or use a pre-built package — the probe tests the registry path, not the build
+
+# Upload deb to all codename pools
+for CODENAME in bookworm jammy noble; do
+  curl --fail -X PUT \
+    -u "xavierk:${GITEA_TOKEN}" \
+    -T "dist/${PROBE_NAME}_${PROBE_VERSION}_amd64.deb" \
+    "https://git.bongbetic.com/api/packages/xavierk/debian/pool/${CODENAME}/main/upload"
+done
+
+# Upload rpm
+curl --fail -X PUT \
+  -u "xavierk:${GITEA_TOKEN}" \
+  -T "dist/${PROBE_NAME}-${PROBE_VERSION}-1.x86_64.rpm" \
+  "https://git.bongbetic.com/api/packages/xavierk/rpm/fenris/upload"
+```
+
+### Verify apt metadata (Debian/Ubuntu consumer perspective)
+
+```bash
+# On a Debian/Ubuntu machine:
+sudo mkdir -p /etc/apt/keyrings
+sudo curl -fsSL https://git.bongbetic.com/api/packages/xavierk/debian/repository.key \
+  | sudo gpg --dearmor -o /etc/apt/keyrings/gitea-xavierk.asc
+
+echo "deb [signed-by=/etc/apt/keyrings/gitea-xavierk.asc] https://git.bongbetic.com/api/packages/xavierk/debian bookworm main" \
+  | sudo tee /etc/apt/sources.list.d/fenris.list
+
+sudo apt update
+apt show ${PROBE_NAME}           # metadata present, correct version
+apt install --dry-run ${PROBE_NAME}  # dependency resolution works
+
+# Verify InRelease signature
+apt-key list 2>/dev/null || gpg --no-default-keyring --keyring /etc/apt/keyrings/gitea-xavierk.asc --list-keys
+```
+
+### Verify dnf metadata (Fedora consumer perspective)
+
+```bash
+# On a Fedora machine:
+sudo dnf config-manager --add-repo https://git.bongbetic.com/xavierk/Fenris/raw/branch/main/packaging/fenris.repo
+# Or use Gitea's auto-generated repo for the probe:
+sudo dnf config-manager --add-repo https://git.bongbetic.com/api/packages/xavierk/rpm/fenris.repo
+
+dnf info ${PROBE_NAME}          # metadata present, correct version
+dnf install --assumeno ${PROBE_NAME}  # dependency resolution works
+
+# Verify rpm signature
+rpm -q --scripts ${PROBE_NAME}  # no scripts (throwaway)
+```
+
+### Verify checksums and clearsign
+
+```bash
+# Download from release assets or local build
+gpg --verify SHA256SUMS.asc SHA256SUMS
+sha256sum -c SHA256SUMS
+```
+
+### Cleanup
+
+```bash
+# Delete the throwaway packages from the registry
+for CODENAME in bookworm jammy noble; do
+  curl --fail -X DELETE \
+    -u "xavierk:${GITEA_TOKEN}" \
+    "https://git.bongbetic.com/api/packages/xavierk/debian/pool/${CODENAME}/main/${PROBE_NAME}/${PROBE_VERSION}/amd64"
+done
+
+curl --fail -X DELETE \
+  -u "xavierk:${GITEA_TOKEN}" \
+  "https://git.bongbetic.com/api/packages/xavierk/rpm/fenris/${PROBE_NAME}/${PROBE_VERSION}/x86_64"
+
+# Remove test source list on consumer machines
+sudo rm /etc/apt/sources.list.d/fenris.list
+sudo apt update
+```

docs/spec/acceptance-criteria.md

@@ -117,6 +117,13 @@ Status: Accepted — resolves [Define cross-cutting acceptance criteria](https:/
 - **IN-9** (P) The installer verifies `python3 ≥ 3.9` and fails cleanly otherwise; `/var/lib/fenris` is created with root-written group-read permissions; the database file is created lazily by the first write.
 - **IN-10** (P) Installed artifacts sit only at their fixed locations — units in `/etc/systemd/system`, helpers in `/usr/libexec/fenris`, polkit policy under `/usr/share/polkit-1/actions/`, configuration at `/etc/fenris`, observation store under `/var/lib/fenris` — and every placed file is recorded in the manifest (ADR 0004 §2; ADR 0003 §4).
 
+## Migration from make-install systems (ADR 0007 §10, spec §9)
+
+- **MG-1** (M) The migration runbook is published in the install docs (`docs/install/migrate-from-makeinstall.md`): mandatory remove-then-install steps, why over-install is forbidden (stale admin-directory units silently shadow vendor units; the local wrapper shadows the package wrapper), no-move continuity, and the reset-to-dormant expectation (the user opts back in with the sanctioned resume).
+- **MG-2** (A) The install guard is verified across the matrix: either make-install marker (the legacy placement manifest, or a unit file under the admin unit directory) causes an abort with a runbook pointer — never auto-clean. Tested by `test_migration_guard` on all four targets (Debian 12, Ubuntu 22.04, Ubuntu 24.04, Fedora 40).
+- **MG-3** (A) No-move continuity is verified in a container seeded with a make-install-shaped system: existing group makes sysusers a no-op, existing store directory makes tmpfiles a no-op, the hand-written configuration survives as a non-database file (package default lands beside it), and the store schema is caught up by the upgrade-path migration. Tested by `test_no_move_continuity_deb` and `test_no_move_continuity_rpm`.
+- **MG-4** (M) The migration costs at most one short sample gap, honestly recorded in the endurance timeline: `make uninstall`'s sanctioned disable closes the open period `user_disabled`; after migration the user opts back in with `fenris monitor resume`.
+
 ## Collector acquisition path (ADR 0006)
 
 - **AC-1** (P) Each collection run acquires counters and thermal evidence solely from `smartctl -a -j <device>` and controller identity (`subnqn`, `sn`, `mn`, `fr`, `transport`) solely from sysfs; no other acquisition path exists anywhere in the codebase.

docs/spec/release-packaging.md

@@ -40,10 +40,10 @@
 
 ## 4. Signing and key policy
 
-- **RPM payload: signed.** rpmsign with the dedicated packaging key, wired through the nfpm config. This is required, not optional: it is the only working dnf-native verification path.
+- **RPM payload: signed.** rpmsign with the dedicated packaging key, invoked by `make sign-rpm` after the package is built. This is required, not optional: it is the only working dnf-native verification path.
 - **deb: unsigned.** apt never verifies payload signatures; trust = instance-signed `InRelease` (signed-by keyring) + TLS + Acquire-By-Hash. Manual-download integrity is covered by SHA256SUMS.
 - **SHA256SUMS: clearsigned** with the packaging key — the trust anchor for manually downloaded release assets, independent of TLS.
-- **Packaging key:** single dedicated key, RSA 3072, UID `Fenris Packaging <packaging@bongbetic.com>`, 2-year expiry, no master/subkey hierarchy (single maintainer, manual builds). Private key lives in the password manager only; each release does import → sign → delete — nothing permanent on any build host.
+- **Packaging key:** single dedicated key, RSA 3072, UID `Fenris Packaging <packaging@bongbetic.com>`, 2-year expiry, no master/subkey hierarchy (single maintainer, manual builds). Private key lives in the password manager only; each release does import → sign → delete — nothing permanent on any build host. The full ceremony is documented in `docs/install/signing-key-ceremony.md`.
 - **Public key publication:** in-repo `packaging/keys/fenris-packaging.asc` (raw URL doubles as the `.repo` gpgkey target), release notes, docs page. No keyservers — TOFU-over-TLS.
 - **Rotation (outline):** new key published alongside old; rpm signed with the new key; `fenris.repo` gpgkey lists both URLs (dnf accepts multiple); old key dropped after one release cycle. Procedure details stay in map fog.
 
@@ -52,7 +52,7 @@
 - **A Release is:** a version tag, its packages in the channel, a Gitea release entry with notes, and a clearsigned SHA256SUMS — all together. **Bare tags are forbidden** (tag without packages + release entry is not a Release).
 - **Cadence: on-demand.** Tag when user-visible changes or fixes accumulate; no calendar, no empty releases, no frequency SLA, no RC ceremony — fixes ship as a revision bump of the current version.
 - **Versioning: plain semver.** Major = breaking CLI/config/unit change; store schema changes ride the natural bump (the forward-only refusal handles old-reader/new-store).
-- **Promotion flow:** tag → `make release` (manual: `make package` + rpmsign + registry PUTs + attach `.deb`, `.rpm`, `SHA256SUMS` to the release entry).
+- **Promotion flow:** tag → `make release` (automated: `make package` → RPM signing via nfpm → SHA256SUMS generation → clearsign → prints registry PUTs + Gitea release steps). The ceremony is documented in `docs/install/signing-key-ceremony.md`.
 - **Rollback:** installing an older package over a newer store is **unsupported** — the store's forward-only version refusal fails it by design. Documented rollback = restore the observation-store snapshot, then install the old Release. No automatic downgrade machinery exists or will be built.
 - **CI:** no runners are registered on the instance today ([Actions runner research](https://git.bongbetic.com/xavierk/Fenris/issues/37)), so the manual flow above is primary. A dormant `.gitea/workflows/release.yml` (`on: push: tags: ['v*']`, single job, host-mode runner) is committed alongside; if it fires, it replicates `make release`. Cheapest future upgrade: one `act_runner` static binary in host-label mode on the existing Gitea host.
 

packaging/keys/fenris-packaging.asc

@@ -1,15 +1,40 @@
-# Fenris Packaging Key — placeholder
+# Fenris Packaging Key
 #
-# The public half of the dedicated RSA-3072 packaging key used to sign rpm
+# Public half of dedicated RSA-3072 key used to sign RPM payloads and
-# payloads and clearsign SHA256SUMS manifests.
+# clearsign SHA256SUMS manifests.
 #
-# The private half lives only in the password manager.  Each release performs:
+# Fingerprint: CE4542E1E23EB50F09EDFFA5A5E8B22D1872FB07
-#   import → sign → delete.  No machine permanently holds signing material.
+# Algorithm: RSA 3072
+# UID: Fenris Packaging <packaging@bongbetic.com>
+# Expiry: 2 years from creation
 #
-# Key details (published with the first Release):
+# Raw URL:
-#   Algorithm: RSA 3072
+#   https://git.bongbetic.com/xavierk/Fenris/raw/branch/main/packaging/keys/fenris-packaging.asc
-#   UID: Fenris Packaging <packaging@bongbetic.com>
-#   Expiry: 2 years from creation
 #
-# This file will be replaced with the real public key at the time of the
+# The private half lives in approved secret storage only. Each release uses
-# first Release.  Its raw URL doubles as the dnf gpgkey target.
+# import -> sign -> delete. See docs/install/signing-key-ceremony.md.
+#
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+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+=V4/R
+-----END PGP PUBLIC KEY BLOCK-----

packaging/nfpm.yaml

@@ -26,19 +26,20 @@ contents:
     file_info:
       mode: 0755
 
-  # Default placeholder-commented config (conffile for deb)
+  # Default placeholder-commented config (deb conffile / rpm %config(noreplace))
   - src: packaging/fenris.conf
     dst: /etc/fenris/fenris.conf
-    type: config
+    type: config|noreplace
     file_info:
       mode: 0644
 
-  # Observation store directory — owned by package, never packed
+  # Observation store directory — owned by package, never packed.
-  # deb: created in postinst; rpm: %ghost
+  # Store files (observations.db, WAL sidecars, .bak) are never owned.
   - dst: /var/lib/fenris
-    type: ghost
+    type: dir
     file_info:
       mode: 2750
+      group: fenris
 
 scripts:
   preinstall: packaging/preinst.sh

packaging/postinst.sh

@@ -26,19 +26,24 @@ n = migrate_to_latest(Path('${STORE_DB}'))
 print(f'Fenris migration: {n} step(s) applied') if n else None
 " 2>&1 || echo "Fenris: migration skipped (store not yet initialized)"
             fi
-            systemctl daemon-reload 2>/dev/null || true
+            # Capture running unit content BEFORE daemon-reload (spec §7)
-            # Restart timer only if unit contents changed AND active (spec §7)
+            RUNNING_UNITS=""
             for unit in fenris-collect.timer; do
                 if systemctl is-active --quiet "${unit}" 2>/dev/null; then
-                    TMPFILE="$(mktemp)"
+                    RUNNING_UNITS="${RUNNING_UNITS} ${unit}"
-                    systemctl cat "${unit}" > "${TMPFILE}" 2>/dev/null || true
-                    UNIT_PATH="/usr/lib/systemd/system/${unit}"
-                    if ! diff -q "${TMPFILE}" "${UNIT_PATH}" > /dev/null 2>&1; then
-                        systemctl restart "${unit}" 2>/dev/null || true
-                    fi
-                    rm -f "${TMPFILE}"
                 fi
             done
+            systemctl daemon-reload 2>/dev/null || true
+            # Restart timer only if unit contents changed AND active
+            for unit in ${RUNNING_UNITS}; do
+                OLD_CONTENT="$(mktemp)"
+                NEW_PATH="/usr/lib/systemd/system/${unit}"
+                systemctl cat "${unit}" > "${OLD_CONTENT}" 2>/dev/null || true
+                if ! diff -q "${OLD_CONTENT}" "${NEW_PATH}" > /dev/null 2>&1; then
+                    systemctl restart "${unit}" 2>/dev/null || true
+                fi
+                rm -f "${OLD_CONTENT}"
+            done
         fi
         # sysusers, tmpfiles, daemon-reload (both fresh install and upgrade)
         systemd-sysusers  || true

packaging/rpm/post.sh

@@ -25,16 +25,22 @@ n = migrate_to_latest(Path('${STORE_DB}'))
 print(f'Fenris migration: {n} step(s) applied') if n else None
 " 2>&1 || echo "Fenris: migration skipped (store not yet initialized)"
     fi
-    systemctl daemon-reload 2>/dev/null || true
+    # Capture running unit content BEFORE daemon-reload (spec §7)
+    RUNNING_UNITS=""
     for unit in fenris-collect.timer; do
         if systemctl is-active --quiet "${unit}" 2>/dev/null; then
-            TMPFILE="$(mktemp)"
+            RUNNING_UNITS="${RUNNING_UNITS} ${unit}"
-            systemctl cat "${unit}" > "${TMPFILE}" 2>/dev/null || true
-            UNIT_PATH="/usr/lib/systemd/system/${unit}"
-            if ! diff -q "${TMPFILE}" "${UNIT_PATH}" > /dev/null 2>&1; then
-                systemctl restart "${unit}" 2>/dev/null || true
-            fi
-            rm -f "${TMPFILE}"
         fi
     done
+    systemctl daemon-reload 2>/dev/null || true
+    # Restart timer only if unit contents changed AND active
+    for unit in ${RUNNING_UNITS}; do
+        OLD_CONTENT="$(mktemp)"
+        NEW_PATH="/usr/lib/systemd/system/${unit}"
+        systemctl cat "${unit}" > "${OLD_CONTENT}" 2>/dev/null || true
+        if ! diff -q "${OLD_CONTENT}" "${NEW_PATH}" > /dev/null 2>&1; then
+            systemctl restart "${unit}" 2>/dev/null || true
+        fi
+        rm -f "${OLD_CONTENT}"
+    done
 fi

scripts/release.sh

@@ -0,0 +1,206 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Fenris one-command release flow (issue #52).
+# Builds both packages, signs, uploads to registry, creates release entry,
+# and attaches artifacts — or in dry-run mode, prints every command.
+#
+# Usage:
+#   scripts/release.sh --dry-run          # Print commands without executing
+#   scripts/release.sh --publish          # Execute the full release flow
+#
+# Environment:
+#   GITEA_TOKEN   - API token for Gitea registry and release API
+#   PACKAGING_KEY - GPG key UID (default: packaging@bongbetic.com)
+#
+# Spec: release-packaging.md §5
+
+# ── Defaults ─────────────────────────────────────────────────────────────
+
+DRY_RUN=false
+PUBLISH=false
+GITEA_URL="https://git.bongbetic.com"
+GITEA_OWNER="xavierk"
+GITEA_REPO="Fenris"
+PACKAGING_KEY="${PACKAGING_KEY:-packaging@bongbetic.com}"
+
+CODENAMES=(bookworm jammy noble)
+RPM_GROUP="fenris"
+
+# ── Parse arguments ──────────────────────────────────────────────────────
+
+for arg in "$@"; do
+    case "$arg" in
+        --dry-run) DRY_RUN=true ;;
+        --publish) PUBLISH=true ;;
+        --help|-h)
+            echo "Usage: $0 [--dry-run | --publish]"
+            echo ""
+            echo "Modes:"
+            echo "  --dry-run   Print commands without executing (default)"
+            echo "  --publish   Execute the full release flow"
+            echo ""
+            echo "Environment:"
+            echo "  GITEA_TOKEN   API token for Gitea registry and release API"
+            echo "  PACKAGING_KEY GPG key UID (default: packaging@bongbetic.com)"
+            exit 0
+            ;;
+        *)
+            echo "Unknown argument: $arg" >&2
+            echo "Usage: $0 [--dry-run | --publish]" >&2
+            exit 1
+            ;;
+    esac
+done
+
+if ! $DRY_RUN && ! $PUBLISH; then
+    DRY_RUN=true
+fi
+
+# ── Helpers ──────────────────────────────────────────────────────────────
+
+_version() {
+    sed -n 's/^version = "\(.*\)"/\1/p' pyproject.toml
+}
+
+_deb_name() {
+    local ver="$1"
+    echo "fenris_${ver}_amd64.deb"
+}
+
+_rpm_name() {
+    local ver="$1" rel="$2"
+    echo "fenris-${ver}-${rel}.x86_64.rpm"
+}
+
+_run() {
+    if $DRY_RUN; then
+        echo "  $*"
+    else
+        eval "$@"
+    fi
+}
+
+# ── Main ─────────────────────────────────────────────────────────────────
+
+VERSION=$(_version)
+REVISION=1
+DEB=$(_deb_name "$VERSION")
+RPM=$(_rpm_name "$VERSION" "$REVISION")
+
+echo "=== Fenris Release v${VERSION} ==="
+echo ""
+
+if $DRY_RUN; then
+    echo "[dry-run] Commands below will be executed in --publish mode."
+    echo ""
+fi
+
+# ── Step 1: Build both formats ──────────────────────────────────────────
+
+echo "--- Build packages ---"
+_run "make package"
+echo ""
+
+# ── Step 2: Sign RPM payload ────────────────────────────────────────────
+
+echo "--- Sign RPM payload ---"
+_run "rpmsign --addsign --define '_gpg_name ${PACKAGING_KEY}' dist/${RPM}"
+echo ""
+
+# ── Step 3: Generate and clearsign SHA256SUMS ────────────────────────────
+
+echo "--- Generate SHA256SUMS ---"
+_run "cd dist && sha256sum ${DEB} ${RPM} > SHA256SUMS"
+echo ""
+
+echo "--- Clearsign SHA256SUMS ---"
+_run "gpg --batch --yes --clearsign --local-user ${PACKAGING_KEY} dist/SHA256SUMS"
+echo ""
+
+# ── Step 4: Upload to Gitea package registry ─────────────────────────────
+
+echo "--- Upload packages to registry ---"
+for codename in "${CODENAMES[@]}"; do
+    _run "curl --fail -X PUT -u ${GITEA_OWNER}:\$GITEA_TOKEN -T dist/${DEB} '${GITEA_URL}/api/packages/${GITEA_OWNER}/debian/pool/${codename}/main/upload'"
+done
+_run "curl --fail -X PUT -u ${GITEA_OWNER}:\$GITEA_TOKEN -T dist/${RPM} '${GITEA_URL}/api/packages/${GITEA_OWNER}/rpm/${RPM_GROUP}/upload'"
+echo ""
+
+# ── Step 5: Create Gitea release with notes ─────────────────────────────
+
+echo "--- Create Gitea release ---"
+_release_notes="Release v${VERSION}
+
+## Packages
+
+Install via apt (Debian/Ubuntu):
+
+\`\`\`bash
+curl --fail -fsSL https://git.bongbetic.com/${GITEA_OWNER}/${GITEA_REPO}/raw/branch/main/packaging/keys/fenris-packaging.asc | sudo gpg --dearmor -o /etc/apt/keyrings/fenris.asc
+echo \"deb [signed-by=/etc/apt/keyrings/fenris.asc] https://git.bongbetic.com/api/packages/${GITEA_OWNER}/debian bookworm main\" | sudo tee /etc/apt/sources.list.d/fenris.list
+sudo apt update && sudo apt install fenris
+\`\`\`
+
+Install via dnf (Fedora):
+
+\`\`\`bash
+sudo dnf config-manager --add-repo https://git.bongbetic.com/${GITEA_OWNER}/${GITEA_REPO}/raw/branch/main/packaging/fenris.repo
+sudo dnf install fenris
+\`\`\`
+
+## Verification
+
+\`\`\`bash
+rpm -Kv fenris-${VERSION}-1.x86_64.rpm
+gpg --verify SHA256SUMS.asc SHA256SUMS
+\`\`\`
+
+## Artifacts
+
+- \`dist/${DEB}\` (Debian/Ubuntu)
+- \`dist/${RPM}\` (Fedora)
+- \`dist/SHA256SUMS.asc\` (clearsigned checksums)
+
+See [docs/install/signing-key-ceremony.md](docs/install/signing-key-ceremony.md) for key ceremony details.
+See [docs/install/migrate-from-makeinstall.md](docs/install/migrate-from-makeinstall.md) for migration from make install."
+
+if $DRY_RUN; then
+    _run "curl --fail -X POST -u ${GITEA_OWNER}:\$GITEA_TOKEN -H 'Content-Type: application/json' -d '{\"tag_name\":\"v${VERSION}\",\"name\":\"v${VERSION}\",\"body\":\"...\"}' '${GITEA_URL}/api/v1/repos/${GITEA_OWNER}/${GITEA_REPO}/releases'"
+else
+    # Create release via Gitea API (creates the tag atomically — no bare tag)
+    RELEASE_RESPONSE=$(curl --fail -s -X POST \
+        -u "${GITEA_OWNER}:${GITEA_TOKEN}" \
+        -H "Content-Type: application/json" \
+        -d "$(jq -n \
+            --arg tag "v${VERSION}" \
+            --arg name "v${VERSION}" \
+            --arg body "$_release_notes" \
+            '{tag_name: $tag, name: $name, body: $body}')" \
+        "${GITEA_URL}/api/v1/repos/${GITEA_OWNER}/${GITEA_REPO}/releases")
+
+    RELEASE_ID=$(echo "$RELEASE_RESPONSE" | jq -r '.id')
+    echo "  Release created: ${GITEA_URL}/${GITEA_OWNER}/${GITEA_REPO}/releases/tag/v${VERSION}"
+fi
+echo ""
+
+# ── Step 6: Attach artifacts to release ──────────────────────────────────
+
+echo "--- Attach artifacts to release ---"
+for artifact in "dist/${DEB}" "dist/${RPM}" "dist/SHA256SUMS.asc"; do
+    _run "curl --fail -X POST -u ${GITEA_OWNER}:\$GITEA_TOKEN -F 'attachment=@${artifact}' '${GITEA_URL}/api/v1/repos/${GITEA_OWNER}/${GITEA_REPO}/releases/${RELEASE_ID:-0}/assets'"
+done
+echo ""
+
+# ── Done ─────────────────────────────────────────────────────────────────
+
+echo "=== Release v${VERSION} complete ==="
+echo ""
+echo "Summary:"
+echo "  Packages: ${DEB}, ${RPM}"
+echo "  Checksums: dist/SHA256SUMS.asc"
+echo "  Registry: deb → bookworm, jammy, noble; rpm → ${RPM_GROUP}"
+echo "  Release: ${GITEA_URL}/${GITEA_OWNER}/${GITEA_REPO}/releases/tag/v${VERSION}"
+echo ""
+echo "Key ceremony: delete the private key after release."
+echo "  See docs/install/signing-key-ceremony.md"

tests/conftest.py

@@ -0,0 +1,20 @@
+"""Shared test helpers for Fenris test suite."""
+from pathlib import Path
+
+import pytest
+
+REPO_ROOT = Path(__file__).resolve().parent.parent
+VERSION_FILE = REPO_ROOT / "pyproject.toml"
+
+
+def get_version() -> str:
+    """Extract version from pyproject.toml."""
+    for line in VERSION_FILE.read_text().splitlines():
+        if line.startswith("version"):
+            return line.split("=")[1].strip().strip('"')
+    raise RuntimeError("Could not determine version from pyproject.toml")
+
+
+def read(path: str | Path) -> str:
+    """Read a file relative to the repository root."""
+    return (REPO_ROOT / path).read_text()

tests/test_release.py

@@ -0,0 +1,367 @@
+"""Release flow tests (issue #52).
+
+Tests the one-command release flow: build, sign, publish, and attach — with
+dry-run mode that is what the tests assert.  All assertions are structural:
+dry-run output contains the expected commands without any network or registry
+access.
+
+Requirements:
+  - scripts/release.sh exists and is executable
+  - No network access required for dry-run tests
+  - No GPG key or registry token required for dry-run tests
+
+Spec: release-packaging.md §5, issue #52 acceptance criteria
+"""
+import subprocess
+from pathlib import Path
+
+import pytest
+
+REPO_ROOT = Path(__file__).resolve().parent.parent
+RELEASE_SCRIPT = REPO_ROOT / "scripts" / "release.sh"
+
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+def _read(path: str | Path) -> str:
+    from tests.conftest import read
+    return read(path)
+
+
+def _get_version() -> str:
+    """Extract version from pyproject.toml."""
+    from tests.conftest import get_version
+    return get_version()
+
+
+def _run_dry_run(*args: str) -> tuple[int, str]:
+    """Run the release script in dry-run mode and return (exit_code, stdout)."""
+    cmd = ["bash", str(RELEASE_SCRIPT), "--dry-run"] + list(args)
+    r = subprocess.run(
+        cmd, capture_output=True, text=True, timeout=30,
+        cwd=REPO_ROOT,
+    )
+    return r.returncode, r.stdout + r.stderr
+
+
+def _deb_filename(version: str, release: int = 1) -> str:
+    """Expected deb filename for a given version and release."""
+    return f"fenris_{version}_amd64.deb"
+
+
+def _rpm_filename(version: str, release: int = 1) -> str:
+    """Expected RPM filename for a given version and release."""
+    return f"fenris-{version}-{release}.x86_64.rpm"
+
+
+def _registry_upload_deb_url(version: str) -> str:
+    """Expected registry upload URL for a deb package."""
+    return f"debian/pool/bookworm/main/upload"
+
+
+def _registry_upload_rpm_url() -> str:
+    """Expected registry upload URL for an RPM package."""
+    return "rpm/fenris/upload"
+
+
+# ---------------------------------------------------------------------------
+# Tests — release script existence and permissions
+# ---------------------------------------------------------------------------
+
+class TestReleaseScriptExists:
+    """Verify the release script is present and executable."""
+
+    def test_script_exists(self):
+        assert RELEASE_SCRIPT.exists(), \
+            "scripts/release.sh must exist"
+
+    def test_script_is_executable(self):
+        assert RELEASE_SCRIPT.stat().st_mode & 0o111, \
+            "scripts/release.sh must be executable"
+
+    def test_script_has_shebang(self):
+        first_line = RELEASE_SCRIPT.read_text().splitlines()[0]
+        assert first_line.startswith("#!/"), \
+            "scripts/release.sh must have a shebang"
+
+
+# ---------------------------------------------------------------------------
+# Tests — dry-run prints all expected commands
+# ---------------------------------------------------------------------------
+
+class TestDryRunCommandPrintout:
+    """Verify dry-run prints every command that would execute."""
+
+    def test_dry_run_exits_zero(self):
+        rc, _ = _run_dry_run()
+        assert rc == 0, "Dry-run must exit zero"
+
+    def test_dry_run_prints_make_package(self):
+        _, output = _run_dry_run()
+        assert "make" in output.lower() and "package" in output.lower(), \
+            "Dry-run must print the make package command"
+
+    def test_dry_run_prints_rpm_signing(self):
+        _, output = _run_dry_run()
+        assert "rpmsign" in output or "sign" in output.lower(), \
+            "Dry-run must print RPM signing step"
+
+    def test_dry_run_prints_sha256sums(self):
+        _, output = _run_dry_run()
+        assert "sha256sum" in output, \
+            "Dry-run must print SHA256SUMS generation"
+
+    def test_dry_run_prints_clearsign(self):
+        _, output = _run_dry_run()
+        assert "clearsign" in output or "SHA256SUMS.asc" in output, \
+            "Dry-run must print clearsign step"
+
+    def test_dry_run_prints_deb_upload(self):
+        version = _get_version()
+        _, output = _run_dry_run()
+        assert _registry_upload_deb_url(version) in output, \
+            f"Dry-run must print deb upload URL ({_registry_upload_deb_url(version)})"
+
+    def test_dry_run_prints_deb_upload_for_all_codenames(self):
+        _, output = _run_dry_run()
+        for codename in ("bookworm", "jammy", "noble"):
+            assert codename in output, \
+                f"Dry-run must include upload for {codename}"
+
+    def test_dry_run_prints_rpm_upload(self):
+        _, output = _run_dry_run()
+        assert _registry_upload_rpm_url() in output, \
+            f"Dry-run must print RPM upload URL ({_registry_upload_rpm_url()})"
+
+    def test_dry_run_prints_release_creation(self):
+        _, output = _run_dry_run()
+        assert "release" in output.lower(), \
+            "Dry-run must print release creation step"
+
+    def test_dry_run_prints_attachment_upload(self):
+        _, output = _run_dry_run()
+        assert "SHA256SUMS.asc" in output, \
+            "Dry-run must print SHA256SUMS.asc attachment upload"
+
+    def test_dry_run_prints_tag_push(self):
+        _, output = _run_dry_run()
+        # The tag is created atomically by the Gitea release API (step 5),
+        # not by a separate git push. Verify the release creation step is present.
+        assert "tag_name" in output or "release" in output.lower(), \
+            "Dry-run must print release creation (which creates the tag)"
+
+    def test_dry_run_no_network_calls(self):
+        """Dry-run must not execute curl, rpmsign, or any network tools."""
+        _, output = _run_dry_run()
+        # The dry-run mode prints a marker at the top; all commands are
+        # echoed (prefixed by spaces) but never executed.  Verify the
+        # marker is present, confirming we're in dry-run mode.
+        assert "[dry-run]" in output, \
+            "Output must contain [dry-run] marker"
+        # Verify dangerous tools only appear as printed commands (not executed).
+        # Printed commands are indented; the dry-run section header confirms
+        # no commands were actually run.
+        assert "Commands below will be executed" in output, \
+            "Dry-run must indicate commands are for display only"
+
+
+# ---------------------------------------------------------------------------
+# Tests — dry-run prints correct package filenames
+# ---------------------------------------------------------------------------
+
+class TestDryRunFilenames:
+    """Verify dry-run uses the correct artifact filenames."""
+
+    def test_deb_filename_in_output(self):
+        version = _get_version()
+        _, output = _run_dry_run()
+        expected = _deb_filename(version)
+        assert expected in output, \
+            f"Dry-run must reference deb filename {expected}"
+
+    def test_rpm_filename_in_output(self):
+        version = _get_version()
+        _, output = _run_dry_run()
+        expected = _rpm_filename(version)
+        assert expected in output, \
+            f"Dry-run must reference RPM filename {expected}"
+
+    def test_checksums_filename_in_output(self):
+        _, output = _run_dry_run()
+        assert "SHA256SUMS" in output, \
+            "Dry-run must reference SHA256SUMS filename"
+
+
+# ---------------------------------------------------------------------------
+# Tests — dry-run does not create artifacts or tags
+# ---------------------------------------------------------------------------
+
+class TestDryRunNoSideEffects:
+    """Verify dry-run creates no filesystem or git side effects."""
+
+    def test_dry_run_no_git_tag_created(self):
+        version = _get_version()
+        tag = f"v{version}"
+        # Ensure tag doesn't exist before
+        r = subprocess.run(
+            ["git", "tag", "-l", tag], capture_output=True, text=True,
+            cwd=REPO_ROOT,
+        )
+        pre_tags = r.stdout.strip()
+
+        _run_dry_run()
+
+        # Verify tag was not created
+        r = subprocess.run(
+            ["git", "tag", "-l", tag], capture_output=True, text=True,
+            cwd=REPO_ROOT,
+        )
+        post_tags = r.stdout.strip()
+        assert pre_tags == post_tags, \
+            f"Dry-run must not create git tag {tag}"
+
+
+# ---------------------------------------------------------------------------
+# Tests — revision bumping (structural: output contains incremented release)
+# ---------------------------------------------------------------------------
+
+class TestRevisionBumping:
+    """Verify the release script handles revision bumping.
+
+    When a version already exists in the registry (HTTP 409), the script
+    bumps the revision and retries.  These tests verify the dry-run output
+    reflects the correct revision logic — without any network access.
+    """
+
+    def test_dry_run_starts_at_revision_one(self):
+        version = _get_version()
+        _, output = _run_dry_run()
+        rpm_expected = _rpm_filename(version, 1)
+        assert rpm_expected in output, \
+            f"Dry-run must start at release 1: expected {rpm_expected} in output"
+
+    def test_revision_bump_changes_rpm_filename(self):
+        """When revision is bumped, the RPM filename changes accordingly."""
+        version = _get_version()
+        rpm_r1 = _rpm_filename(version, 1)
+        rpm_r2 = _rpm_filename(version, 2)
+        # R2 filename must differ from R1
+        assert rpm_r1 != rpm_r2, \
+            "R2 filename must differ from R1"
+        # Both must contain the version
+        assert version in rpm_r1
+        assert version in rpm_r2
+
+    def test_revision_bump_changes_deb_filename(self):
+        """When revision is bumped, the deb filename also changes."""
+        version = _get_version()
+        # Deb filename includes release in nfpm naming
+        deb_r1 = f"fenris_{version}_amd64.deb"
+        deb_r2 = f"fenris_{version}_amd64.deb"
+        # For deb, the filename doesn't change with revision (deb uses epoch)
+        # But the RPM does — this verifies we test RPM revision correctly
+        rpm_r1 = _rpm_filename(version, 1)
+        rpm_r2 = _rpm_filename(version, 2)
+        assert "-1." in rpm_r1, "R1 RPM must contain -1."
+        assert "-2." in rpm_r2, "R2 RPM must contain -2."
+
+
+# ---------------------------------------------------------------------------
+# Tests — bare tag prevention (structural)
+# ---------------------------------------------------------------------------
+
+class TestBareTagPrevention:
+    """Verify the flow prevents bare tags.
+
+    A bare tag (tag without packages, release entry, notes, and checksums)
+    must not result from the flow.  The script checks for existing bare
+    tags before proceeding.  These tests verify the dry-run doesn't create
+    any tags.
+    """
+
+    def test_dry_run_does_not_push_tag(self):
+        _, output = _run_dry_run()
+        # The dry-run marker confirms no commands are executed.
+        # git push appears only as a printed command, never executed.
+        assert "[dry-run]" in output, \
+            "Must be in dry-run mode"
+        # Tag push is printed but the [dry-run] marker confirms nothing ran
+        assert "Commands below will be executed" in output, \
+            "Dry-run must indicate commands are for display only"
+
+
+# ---------------------------------------------------------------------------
+# Tests — CI workflow file
+# ---------------------------------------------------------------------------
+
+class TestCIWorkflow:
+    """Verify the dormant CI workflow is present and correctly structured."""
+
+    def test_workflow_file_exists(self):
+        path = REPO_ROOT / ".gitea" / "workflows" / "release.yml"
+        assert path.exists(), \
+            ".gitea/workflows/release.yml must exist"
+
+    def test_workflow_triggers_on_tags(self):
+        content = _read(".gitea/workflows/release.yml")
+        assert "v*" in content, \
+            "Workflow must trigger on version tags (v*)"
+
+    def test_workflow_has_release_step(self):
+        content = _read(".gitea/workflows/release.yml")
+        assert "release" in content.lower(), \
+            "Workflow must have a release step"
+
+    def test_workflow_mentions_signing(self):
+        content = _read(".gitea/workflows/release.yml")
+        assert "sign" in content.lower(), \
+            "Workflow must include signing step"
+
+    def test_workflow_mentions_upload(self):
+        content = _read(".gitea/workflows/release.yml")
+        assert "upload" in content.lower() or "publish" in content.lower(), \
+            "Workflow must include upload/publish step"
+
+
+# ---------------------------------------------------------------------------
+# Tests — Makefile release targets
+# ---------------------------------------------------------------------------
+
+class TestMakefileReleaseTargets:
+    """Verify the Makefile exposes release-related targets."""
+
+    def _makefile_content(self) -> str:
+        return _read("Makefile")
+
+    def test_release_run_target_exists(self):
+        content = self._makefile_content()
+        assert "release-run:" in content, \
+            "Makefile must have a release-run target"
+
+    def test_release_dry_run_target_exists(self):
+        content = self._makefile_content()
+        assert "release-dry-run:" in content, \
+            "Makefile must have a release-dry-run target"
+
+    def test_release_run_calls_script(self):
+        content = self._makefile_content()
+        assert "release.sh" in content, \
+            "release-run target must call scripts/release.sh"
+
+    def test_release_dry_run_uses_dry_run_flag(self):
+        content = self._makefile_content()
+        # Find the release-dry-run target and verify it passes --dry-run
+        in_target = False
+        for line in content.splitlines():
+            if line.startswith("release-dry-run:"):
+                in_target = True
+                continue
+            if in_target and line.strip():
+                if "--dry-run" in line:
+                    break
+                if not line.startswith("\t"):
+                    break
+        else:
+            pytest.fail("release-dry-run target must pass --dry-run to release.sh")

tests/test_signing.py

@@ -0,0 +1,480 @@
+"""Signing and consumer-repo structural tests (issue #51).
+
+Verifies that the signing infrastructure, consumer setup docs, and key
+publication are correctly wired — without requiring a real GPG key,
+network access, or Docker.
+
+All assertions are structural: config keys exist, URLs match, docs
+are present, and the Makefile exposes the right targets.  A throwaway
+test key exercise is included for rpm signature verification mechanics.
+"""
+import subprocess
+import tempfile
+from pathlib import Path
+
+import pytest
+
+REPO_ROOT = Path(__file__).resolve().parent.parent
+
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+def _read(path: str | Path) -> str:
+    from tests.conftest import read
+    return read(path)
+
+
+def _gpg_available() -> bool:
+    try:
+        r = subprocess.run(
+            ["gpg", "--version"], capture_output=True, timeout=5,
+        )
+        return r.returncode == 0
+    except (FileNotFoundError, subprocess.TimeoutExpired):
+        return False
+
+
+def _rpmsign_available() -> bool:
+    try:
+        r = subprocess.run(
+            ["rpmsign", "--version"], capture_output=True, timeout=5,
+        )
+        return r.returncode == 0
+    except (FileNotFoundError, subprocess.TimeoutExpired):
+        return False
+
+
+# ---------------------------------------------------------------------------
+# Tests — nfpm.yaml signing configuration
+# ---------------------------------------------------------------------------
+
+class TestNfpmSigningConfig:
+    """Verify that nfpm.yaml is correctly configured for RPM builds.
+
+    Note: RPM signing is done via rpmsign post-build (make sign-rpm),
+    not through nfpm's built-in signing. This keeps the build unsigned
+    and the signing step explicit and key-controlled.
+    """
+
+    def test_rpm_overrides_exist(self):
+        """nfpm.yaml must have overrides.rpm for per-format deltas."""
+        content = _read("packaging/nfpm.yaml")
+        assert "overrides:" in content, "overrides section missing from nfpm.yaml"
+        assert "rpm:" in content, "rpm overrides missing from nfpm.yaml"
+
+    def test_rpm_scripts_configured(self):
+        """RPM must use the dedicated scriptlets, not deb scripts."""
+        content = _read("packaging/nfpm.yaml")
+        assert "packaging/rpm/post.sh" in content, \
+            "RPM postinstall must use rpm/post.sh"
+        assert "packaging/rpm/preun.sh" in content, \
+            "RPM preremove must use rpm/preun.sh"
+        assert "packaging/rpm/postun.sh" in content, \
+            "RPM postremove must use rpm/postun.sh"
+
+    def test_rpm_depends_use_correct_syntax(self):
+        """RPM dependencies must use rpm-style version syntax."""
+        content = _read("packaging/nfpm.yaml")
+        assert "python3 >= 3.10" in content, \
+            "RPM depends must use rpm-style version constraint"
+
+
+# ---------------------------------------------------------------------------
+# Tests — Makefile signing targets
+# ---------------------------------------------------------------------------
+
+class TestMakefileSigningTargets:
+    """Verify that the Makefile exposes signing-related targets."""
+
+    def _makefile_content(self) -> str:
+        return _read("Makefile")
+
+    def test_generate_test_key_target(self):
+        content = self._makefile_content()
+        assert "generate-test-key:" in content, \
+            "Makefile must have a generate-test-key target"
+        assert "packaging-test@bongbetic.com" in content or \
+               "packaging@bongbetic.com" in content, \
+            "generate-test-key must reference the packaging key UID"
+
+    def test_sign_rpm_target(self):
+        content = self._makefile_content()
+        assert "sign-rpm:" in content, \
+            "Makefile must have a sign-rpm target"
+        assert "rpmsign" in content, \
+            "sign-rpm target must use rpmsign"
+
+    def test_checksums_target(self):
+        content = self._makefile_content()
+        assert "checksums:" in content, \
+            "Makefile must have a checksums target"
+        assert "sha256sum" in content, \
+            "checksums target must use sha256sum"
+
+    def test_clearsign_target(self):
+        content = self._makefile_content()
+        assert "clearsign:" in content, \
+            "Makefile must have a clearsign target"
+        assert "--clearsign" in content, \
+            "clearsign target must use gpg --clearsign"
+
+    def test_release_depends_on_signing(self):
+        content = self._makefile_content()
+        for line in content.splitlines():
+            if line.startswith("release:"):
+                deps = line.split(":", 1)[1].strip()
+                assert "sign-rpm" in deps, \
+                    "release target must depend on sign-rpm"
+                assert "clearsign" in deps, \
+                    "release target must depend on clearsign"
+                break
+        else:
+            pytest.fail("release target not found in Makefile")
+
+    def test_packaging_key_uid_defined(self):
+        content = self._makefile_content()
+        assert "PACKAGING_KEY" in content, \
+            "Makefile must define PACKAGING_KEY variable"
+
+    def test_release_mentions_key_ceremony(self):
+        content = self._makefile_content()
+        assert "signing-key-ceremony.md" in content, \
+            "release target must reference the key ceremony doc"
+
+
+# ---------------------------------------------------------------------------
+# Tests — fenris.repo configuration
+# ---------------------------------------------------------------------------
+
+class TestFenrisRepo:
+    """Verify the dnf repo file is correctly configured for Fenris."""
+
+    def _repo_content(self) -> str:
+        return _read("packaging/fenris.repo")
+
+    def test_gpgcheck_enabled(self):
+        content = self._repo_content()
+        assert "gpgcheck=1" in content, \
+            "fenris.repo must set gpgcheck=1 for payload verification"
+
+    def test_repo_gpgcheck_disabled(self):
+        content = self._repo_content()
+        assert "repo_gpgcheck=0" in content, \
+            "fenris.repo must set repo_gpgcheck=0 (metadata check via TLS)"
+
+    def test_gpgkey_points_to_packaging_key(self):
+        content = self._repo_content()
+        assert "gpgkey=" in content, \
+            "fenris.repo must have a gpgkey directive"
+        assert "fenris-packaging.asc" in content, \
+            "gpgkey must point at the packaging key"
+        assert "raw/branch/main" in content, \
+            "gpgkey must use raw URL for the public key"
+
+    def test_baseurl_is_fenris_rpm_group(self):
+        content = self._repo_content()
+        assert "rpm/fenris" in content, \
+            "baseurl must point at the fenris RPM group"
+
+
+# ---------------------------------------------------------------------------
+# Tests — public key publication
+# ---------------------------------------------------------------------------
+
+class TestKeyPublication:
+    """Verify the public key is published in-repo with correct metadata."""
+
+    def test_key_file_exists(self):
+        key_path = REPO_ROOT / "packaging" / "keys" / "fenris-packaging.asc"
+        assert key_path.exists(), \
+            "packaging/keys/fenris-packaging.asc must exist"
+
+    def test_key_file_has_raw_url(self):
+        content = _read("packaging/keys/fenris-packaging.asc")
+        raw_url = (
+            "https://git.bongbetic.com/xavierk/Fenris/raw/branch/main/"
+            "packaging/keys/fenris-packaging.asc"
+        )
+        assert raw_url in content, \
+            "Key file must contain its own raw URL as documentation"
+
+    def test_key_file_documents_algorithm(self):
+        content = _read("packaging/keys/fenris-packaging.asc")
+        assert "RSA 3072" in content or "rsa3072" in content.lower(), \
+            "Key file must document the algorithm as RSA 3072"
+
+    def test_key_file_documents_uid(self):
+        content = _read("packaging/keys/fenris-packaging.asc")
+        assert "Fenris Packaging" in content, \
+            "Key file must document the UID"
+
+    def test_key_file_documents_expiry(self):
+        content = _read("packaging/keys/fenris-packaging.asc")
+        assert "2 year" in content or "2-year" in content or "expiry" in content.lower(), \
+            "Key file must document the expiry policy"
+
+    def test_key_file_references_ceremony_doc(self):
+        content = _read("packaging/keys/fenris-packaging.asc")
+        assert "signing-key-ceremony.md" in content, \
+            "Key file must reference the key ceremony document"
+
+
+# ---------------------------------------------------------------------------
+# Tests — key ceremony documentation
+# ---------------------------------------------------------------------------
+
+class TestKeyCeremonyDoc:
+    """Verify the key ceremony document is complete and accurate."""
+
+    def _doc_content(self) -> str:
+        return _read("docs/install/signing-key-ceremony.md")
+
+    def test_ceremony_doc_exists(self):
+        assert (REPO_ROOT / "docs" / "install" / "signing-key-ceremony.md").exists(), \
+            "docs/install/signing-key-ceremony.md must exist"
+
+    def test_documents_key_specification(self):
+        content = self._doc_content()
+        assert "RSA 3072" in content, "Must document RSA 3072 algorithm"
+        assert "Fenris Packaging" in content, "Must document the UID"
+        assert "packaging@bongbetic.com" in content, "Must document the email"
+
+    def test_documents_import_sign_delete(self):
+        content = self._doc_content()
+        assert "import" in content.lower(), "Must document import step"
+        assert "sign" in content.lower(), "Must document sign step"
+        assert "delete" in content.lower(), "Must document delete step"
+
+    def test_documents_rotation_outline(self):
+        content = self._doc_content()
+        assert "rotation" in content.lower(), \
+            "Must document key rotation procedure"
+
+    def test_documents_dual_key_approach(self):
+        content = self._doc_content()
+        assert "previous" in content.lower() or "old" in content.lower(), \
+            "Must document old key retention during rotation"
+
+    def test_documents_private_key_storage(self):
+        content = self._doc_content()
+        assert "password manager" in content.lower(), \
+            "Must document that private key lives in password manager"
+
+
+# ---------------------------------------------------------------------------
+# Tests — consumer setup documentation
+# ---------------------------------------------------------------------------
+
+class TestConsumerDocs:
+    """Verify consumer setup docs are present and correctly wired."""
+
+    def _readme_content(self) -> str:
+        return _read("README.md")
+
+    def test_apt_signed_by_flow(self):
+        content = self._readme_content()
+        assert "signed-by" in content, \
+            "README must document apt signed-by keyring flow"
+        assert "keyrings" in content, \
+            "README must show the keyrings directory"
+
+    def test_apt_fingerprint_placeholder(self):
+        content = self._readme_content()
+        assert "Fingerprint" in content or "fingerprint" in content, \
+            "README must include fingerprint placeholder for TOFU hardening"
+
+    def test_dnf_repo_flow(self):
+        content = self._readme_content()
+        assert "dnf config-manager --add-repo" in content or \
+               "dnf install" in content, \
+            "README must document dnf install flow"
+        assert "fenris.repo" in content, \
+            "README must reference the Fenris-owned repo file"
+
+    def test_no_gitea_auto_repo(self):
+        """Gitea's auto-generated .repo must never be referenced in docs."""
+        content = self._readme_content()
+        # The Gitea auto-generated repo would have gpgcheck=1 against the
+        # instance key, which is a trap. Our docs should only reference
+        # our own fenris.repo file.
+        assert "auto-generated" not in content.lower() or \
+               "never" in content.lower(), \
+            "README must not recommend Gitea's auto-generated .repo"
+
+    def test_package_signature_verification(self):
+        content = self._readme_content()
+        assert "rpm -K" in content or "rpm --checksig" in content, \
+            "README must document RPM signature verification"
+        assert "gpg --verify" in content, \
+            "README must document GPG verification for SHA256SUMS"
+
+    def test_migration_from_make_install(self):
+        content = self._readme_content()
+        assert "migrate-from-makeinstall" in content.lower() or \
+               "migration" in content.lower(), \
+            "README must reference the migration runbook"
+
+
+# ---------------------------------------------------------------------------
+# Tests — release spec references
+# ---------------------------------------------------------------------------
+
+class TestReleaseSpecReferences:
+    """Verify the release spec references the ceremony doc and nfpm config."""
+
+    def _spec_content(self) -> str:
+        return _read("docs/spec/release-packaging.md")
+
+    def test_spec_references_rpmsign(self):
+        content = self._spec_content()
+        assert "rpmsign" in content.lower() or "sign-rpm" in content, \
+            "Spec must reference rpmsign or make sign-rpm for RPM signing"
+
+    def test_spec_references_ceremony_doc(self):
+        content = self._spec_content()
+        assert "signing-key-ceremony.md" in content, \
+            "Spec must reference the key ceremony document"
+
+
+# ---------------------------------------------------------------------------
+# Tests — RPM signature mechanics (throwaway test key, no network)
+# ---------------------------------------------------------------------------
+
+class TestRpmSignatureMechanics:
+    """Verify RPM signing mechanics using a throwaway test key.
+
+    These tests generate a temporary GPG key, build an RPM (or use an
+    existing one), sign it, and verify the signature — all without
+    network access.  They require gpg and rpmsign to be available.
+    """
+
+    @pytest.mark.skipif(
+        not _gpg_available() or not _rpmsign_available(),
+        reason="gpg or rpmsign not available",
+    )
+    def test_throwaway_key_signs_and_verifies(self):
+        """Generate a throwaway key, sign a test RPM, verify signature."""
+        # Find existing RPM
+        version = None
+        for line in (REPO_ROOT / "pyproject.toml").read_text().splitlines():
+            if line.startswith("version"):
+                version = line.split("=")[1].strip().strip('"')
+                break
+        rpm_path = REPO_ROOT / "dist" / f"fenris-{version}-1.x86_64.rpm"
+        if not rpm_path.exists():
+            pytest.skip("RPM not built — run `make package-rpm` first")
+
+        key_uid = "fenris-test-signing@example.com"
+        try:
+            # Generate throwaway key
+            subprocess.run(
+                ["gpg", "--batch", "--gen-key"],
+                input=f"""%no-protection
+Key-Type: RSA
+Key-Length: 3072
+Name-Real: {key_uid}
+Name-Email: {key_uid}
+Expire-Date: 0
+%commit
+""",
+                text=True, check=True, timeout=30,
+            )
+
+            # Copy RPM to temp dir for signing
+            with tempfile.TemporaryDirectory() as tmpdir:
+                signed_rpm = Path(tmpdir) / rpm_path.name
+                signed_rpm.write_bytes(rpm_path.read_bytes())
+
+                # Sign the RPM
+                subprocess.run(
+                    ["rpmsign", "--addsign",
+                     "--define", f"_gpg_name {key_uid}",
+                     str(signed_rpm)],
+                    check=True, timeout=30,
+                )
+
+                # Verify the signature exists and has correct format
+                # (rpm -Kv returns NOKEY if key isn't imported, but the
+                # signature header is still present and verifiable)
+                r = subprocess.run(
+                    ["rpm", "-Kv", str(signed_rpm)],
+                    capture_output=True, text=True, timeout=10,
+                )
+                output = r.stdout + r.stderr
+                assert "RSA" in output or "rsa" in output.lower(), \
+                    f"RPM must have RSA signature: {output}"
+                assert "SHA256" in output or "sha256" in output.lower(), \
+                    f"RPM must have SHA256 digest: {output}"
+                assert "Header V4" in output or "Header" in output, \
+                    f"RPM must have V4 signature header: {output}"
+                assert "Signature" in output, \
+                    f"RPM must show signature info: {output}"
+
+        finally:
+            # Clean up the test key
+            subprocess.run(
+                ["gpg", "--batch", "--yes", "--delete-secret-keys", key_uid],
+                capture_output=True, timeout=5,
+            )
+            subprocess.run(
+                ["gpg", "--batch", "--yes", "--delete-keys", key_uid],
+                capture_output=True, timeout=5,
+            )
+
+    @pytest.mark.skipif(
+        not _gpg_available(),
+        reason="gpg not available",
+    )
+    def test_clearsign_and_verify(self):
+        """Clearsign a test manifest and verify the signature."""
+        key_uid = "fenris-test-clearsign@example.com"
+        try:
+            # Generate throwaway key
+            subprocess.run(
+                ["gpg", "--batch", "--gen-key"],
+                input=f"""%no-protection
+Key-Type: RSA
+Key-Length: 3072
+Name-Real: {key_uid}
+Name-Email: {key_uid}
+Expire-Date: 0
+%commit
+""",
+                text=True, check=True, timeout=30,
+            )
+
+            with tempfile.TemporaryDirectory() as tmpdir:
+                sums = Path(tmpdir) / "SHA256SUMS"
+                sums.write_text(
+                    "abc123  fenris_0.3.0_amd64.deb\n"
+                    "def456  fenris-0.3.0-1.x86_64.rpm\n"
+                )
+
+                # Clearsign
+                subprocess.run(
+                    ["gpg", "--batch", "--yes", "--clearsign",
+                     "--local-user", key_uid, str(sums)],
+                    check=True, timeout=10,
+                )
+
+                # Verify (clearsigned file — just one argument to --verify)
+                r = subprocess.run(
+                    ["gpg", "--verify", str(sums.with_suffix(".asc"))],
+                    capture_output=True, text=True, timeout=10,
+                )
+                assert r.returncode == 0, \
+                    f"Clearsign verification failed: {r.stderr}"
+                assert "Good signature" in r.stderr, \
+                    f"Expected Good signature: {r.stderr}"
+
+        finally:
+            subprocess.run(
+                ["gpg", "--batch", "--yes", "--delete-secret-keys", key_uid],
+                capture_output=True, timeout=5,
+            )
+            subprocess.run(
+                ["gpg", "--batch", "--yes", "--delete-keys", key_uid],
+                capture_output=True, timeout=5,
+            )

tests/test_store_migration.py

@@ -0,0 +1,195 @@
+"""Observation store migration unit tests (issue #48).
+
+Tests the forward-only migration logic that underpins package upgrade
+semantics: older stores are migrated, current stores pass through, and
+newer stores are refused loudly.
+
+Spec: §3.6, §9.5, §10.2
+"""
+import sqlite3
+import sys
+from pathlib import Path
+
+import pytest
+
+sys.path.insert(0, str(Path(__file__).parent.parent / "src"))
+
+from fenris.store import (
+    SCHEMA_VERSION,
+    init_store,
+    migrate_to_latest,
+)
+from fenris.status import NewerSchema, open_store_readonly
+
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+def _make_store(path: Path, version: int = 0) -> sqlite3.Connection:
+    """Create a store at *path* with the given user_version."""
+    conn = sqlite3.connect(str(path))
+    conn.execute("PRAGMA journal_mode=WAL")
+    if version == 0:
+        # Fresh DB with no schema — user_version defaults to 0
+        pass
+    else:
+        # Create a minimal schema so the DB is valid, then set version
+        conn.execute("""
+            CREATE TABLE IF NOT EXISTS samples (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                ts TEXT NOT NULL,
+                device TEXT NOT NULL
+            )
+        """)
+        conn.execute(f"PRAGMA user_version={version}")
+    conn.commit()
+    return conn
+
+
+# ---------------------------------------------------------------------------
+# migrate_to_latest
+# ---------------------------------------------------------------------------
+
+class TestMigrateToLatest:
+    """Forward-only migration via migrate_to_latest()."""
+
+    def test_migrates_from_zero(self, tmp_path):
+        """Store at user_version=0 → SCHEMA_VERSION (fresh DB)."""
+        db = tmp_path / "observations.db"
+        _make_store(db, version=0)
+
+        steps = migrate_to_latest(db)
+
+        # SCHEMA_VERSION - 0 = SCHEMA_VERSION migration steps
+        assert steps == SCHEMA_VERSION
+
+        # Verify version was bumped
+        conn = sqlite3.connect(str(db))
+        v = conn.execute("PRAGMA user_version").fetchone()[0]
+        conn.close()
+        assert v == SCHEMA_VERSION
+
+    def test_already_current_returns_zero(self, tmp_path):
+        """Store already at SCHEMA_VERSION → 0 steps applied."""
+        db = tmp_path / "observations.db"
+        conn = _make_store(db, version=SCHEMA_VERSION)
+        conn.close()
+
+        steps = migrate_to_latest(db)
+        assert steps == 0
+
+    def test_refuses_newer_store(self, tmp_path):
+        """Store with user_version > SCHEMA_VERSION → ValueError."""
+        db = tmp_path / "observations.db"
+        _make_store(db, version=SCHEMA_VERSION + 1)
+
+        with pytest.raises(ValueError, match="newer Fenris"):
+            migrate_to_latest(db)
+
+    def test_refuses_much_newer_store(self, tmp_path):
+        """Store several versions ahead → ValueError."""
+        db = tmp_path / "observations.db"
+        _make_store(db, version=SCHEMA_VERSION + 5)
+
+        with pytest.raises(ValueError, match="newer Fenris"):
+            migrate_to_latest(db)
+
+    def test_store_not_corrupted_on_refusal(self, tmp_path):
+        """After refusal, store is unchanged (no silent corruption)."""
+        db = tmp_path / "observations.db"
+        _make_store(db, version=SCHEMA_VERSION + 2)
+
+        with pytest.raises(ValueError):
+            migrate_to_latest(db)
+
+        # Version should be unchanged
+        conn = sqlite3.connect(str(db))
+        v = conn.execute("PRAGMA user_version").fetchone()[0]
+        conn.close()
+        assert v == SCHEMA_VERSION + 2
+
+    def test_idempotent_on_current(self, tmp_path):
+        """Calling migrate_to_latest twice on a current store is safe."""
+        db = tmp_path / "observations.db"
+        _make_store(db, version=SCHEMA_VERSION)
+
+        assert migrate_to_latest(db) == 0
+        assert migrate_to_latest(db) == 0
+
+    def test_migrates_intermediate_version(self, tmp_path):
+        """Store at version 1 with SCHEMA_VERSION=1 → 0 steps (current)."""
+        db = tmp_path / "observations.db"
+        _make_store(db, version=1)
+        # SCHEMA_VERSION is 1, so version 1 is current
+        steps = migrate_to_latest(db)
+        assert steps == 0
+
+
+# ---------------------------------------------------------------------------
+# init_store — downgrade refusal
+# ---------------------------------------------------------------------------
+
+class TestInitStoreDowngradeRefusal:
+    """init_store() refuses newer-schema stores."""
+
+    def test_refuses_newer_store(self, tmp_path):
+        """init_store raises ValueError on newer-schema store."""
+        db = tmp_path / "observations.db"
+        _make_store(db, version=SCHEMA_VERSION + 1)
+
+        with pytest.raises(ValueError, match="newer Fenris"):
+            init_store(db)
+
+    def test_store_not_corrupted_on_refusal(self, tmp_path):
+        """After init_store refusal, store is unchanged."""
+        db = tmp_path / "observations.db"
+        _make_store(db, version=SCHEMA_VERSION + 1)
+
+        with pytest.raises(ValueError):
+            init_store(db)
+
+        conn = sqlite3.connect(str(db))
+        v = conn.execute("PRAGMA user_version").fetchone()[0]
+        conn.close()
+        assert v == SCHEMA_VERSION + 1
+
+
+# ---------------------------------------------------------------------------
+# open_store_readonly — downgrade refusal
+# ---------------------------------------------------------------------------
+
+class TestOpenStoreReadonlyDowngradeRefusal:
+    """open_store_readonly() raises NewerSchema on newer-schema stores."""
+
+    def test_raises_newer_schema(self, tmp_path):
+        """Newer store → NewerSchema exception."""
+        db = tmp_path / "observations.db"
+        _make_store(db, version=SCHEMA_VERSION + 1)
+
+        with pytest.raises(NewerSchema) as exc_info:
+            open_store_readonly(db)
+
+        assert exc_info.value.version == SCHEMA_VERSION + 1
+
+    def test_store_not_corrupted(self, tmp_path):
+        """After NewerSchema refusal, store is unchanged."""
+        db = tmp_path / "observations.db"
+        _make_store(db, version=SCHEMA_VERSION + 3)
+
+        with pytest.raises(NewerSchema):
+            open_store_readonly(db)
+
+        conn = sqlite3.connect(str(db))
+        v = conn.execute("PRAGMA user_version").fetchone()[0]
+        conn.close()
+        assert v == SCHEMA_VERSION + 3
+
+    def test_current_store_opens(self, tmp_path):
+        """Store at SCHEMA_VERSION opens without error."""
+        db = tmp_path / "observations.db"
+        _make_store(db, version=SCHEMA_VERSION)
+
+        conn = open_store_readonly(db)
+        assert conn is not None
+        conn.close()