ci: install docker CLI static binary instead of setup-buildx-action

.gitea/workflows/ci.yml

@@ -52,3 +52,41 @@ jobs:
             echo "==> $f"
             nomad job validate "$f"
           done
+
+  image-pull:
+    name: Docker image pull validation
+    runs-on: ubuntu-latest
+    # Only run on PRs that touch nomad job specs
+    if: github.event_name == 'pull_request'
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Pull changed images
+        run: |
+          curl -fsSL https://download.docker.com/linux/static/stable/x86_64/docker-27.5.1.tgz \
+            | tar -xz --strip-components=1 -C /usr/local/bin docker/docker
+          git fetch origin ${{ github.base_ref }}
+          IMAGES=$(git diff origin/${{ github.base_ref }}...HEAD -- '*.nomad.hcl' \
+            | grep '^+\s*image\s*=' \
+            | grep -oP '"[^"]+:[^"]+"' \
+            | tr -d '"' \
+            | sort -u)
+
+          if [ -z "$IMAGES" ]; then
+            echo "No image changes detected, skipping pull."
+            exit 0
+          fi
+
+          FAILED=0
+          while IFS= read -r image; do
+            echo "==> Pulling $image"
+            if ! docker pull "$image"; then
+              echo "ERROR: Failed to pull $image"
+              FAILED=1
+            fi
+          done <<< "$IMAGES"
+
+          exit $FAILED

2-nomad-config/glance.nomad.hcl

@@ -12,7 +12,7 @@ job "glance" {
       driver = "docker"
 
       config {
-        image = "glanceapp/glance:latest"
+        image = "glanceapp/glance:v0.7.8"
         ports = ["http"]
         volumes = [
           "local/glance.yml:/app/config/glance.yml",

2-nomad-config/openreader.nomad.hcl

@@ -59,7 +59,7 @@ job "openreader" {
       driver = "docker"
 
       config {
-        image = "ghcr.io/richardr1126/openreader:v2.2.0"
+        image = "ghcr.io/richardr1126/openreader:v2.1.2"
         ports = ["http"]
       }
 

cicd-plan.md

@@ -296,7 +296,7 @@ exit 1
 - [x] **Phase 1a**: Create `act-runner.nomad.hcl` + Terraform wrapper, register runner token in Gitea, get a hello-world workflow green
 - [x] **Phase 1b**: Add `terraform fmt` + `terraform validate -backend=false` workflow — no secrets needed
 - [x] **Phase 1c**: Add Nomad validate step — add `NOMAD_ADDR` + read-only `NOMAD_TOKEN` to Gitea secrets
-- [ ] **Phase 2**: Add image pull validation step to the workflow
+- [x] **Phase 2**: Add image pull validation step to the workflow
 - [ ] **Phase 3a**: Add `update` stanzas to ntfy and glance (simplest, no volume conflict)
 - [ ] **Phase 3b**: Add rolling `update` stanzas to remaining service jobs (jellyfin, sonarr, etc.)
 - [ ] **Phase 3c**: Add health checks to openreader and unifi before adding update stanzas