fix: simplify bake file to avoid locals/function blocks (buildx compat)

The Gitea runner's docker buildx doesn't support HCL locals{} or function{}
blocks (added in buildx 0.12+). Replace with plain variables: VERSION and
MAJOR_MINOR are pre-computed in a CI step and passed as env vars to bake.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/release.yaml

@@ -147,10 +147,10 @@ jobs:
   #         SENTRY_ORG: libnovel
   #         SENTRY_PROJECT: ui
 
-  # ── docker: all images in one job (single login) ──────────────────────────────
-  # backend, runner, ui, and caddy are built sequentially in one job so Docker
-  # Hub only needs to be authenticated once. This also eliminates 3 redundant
-  # checkout + setup-buildx + scheduler round-trips compared to separate jobs.
+  # ── docker: build + push all images via docker bake ──────────────────────────
+  # docker-bake.hcl owns all tag logic (semver, major.minor, latest) via HCL
+  # functions — no docker/metadata-action needed.  BuildKit builds all five
+  # targets in parallel, sharing the Go builder stage across backend/runner/pocketbase.
   docker:
     name: Docker
     runs-on: ubuntu-latest
@@ -160,65 +160,20 @@ jobs:
 
       - uses: docker/setup-buildx-action@v3
 
-      # Single login — credential is written to ~/.docker/config.json and
-      # reused by all subsequent build-push-action steps in this job.
       - name: Log in to Docker Hub
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKER_USER }}
           password: ${{ secrets.DOCKER_TOKEN }}
 
-      # ── backend ──────────────────────────────────────────────────────────────
-      - name: Docker meta / backend
-        id: meta-backend
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ secrets.DOCKER_USER }}/libnovel-backend
-          tags: |
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=raw,value=latest
+      - name: Compute version tags
+        id: ver
+        run: |
+          V="${{ gitea.ref_name }}"
+          VER="${V#v}"
+          echo "version=$VER" >> "$GITHUB_OUTPUT"
+          echo "major_minor=$(echo "$VER" | cut -d. -f1-2)" >> "$GITHUB_OUTPUT"
 
-      - name: Build and push / backend
-        uses: docker/build-push-action@v6
-        with:
-          context: backend
-          target: backend
-          push: true
-          tags: ${{ steps.meta-backend.outputs.tags }}
-          labels: ${{ steps.meta-backend.outputs.labels }}
-          build-args: |
-            VERSION=${{ steps.meta-backend.outputs.version }}
-            COMMIT=${{ gitea.sha }}
-          cache-from: type=registry,ref=${{ secrets.DOCKER_USER }}/libnovel-backend:latest
-          cache-to: type=inline
-
-      # ── runner ───────────────────────────────────────────────────────────────
-      - name: Docker meta / runner
-        id: meta-runner
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ secrets.DOCKER_USER }}/libnovel-runner
-          tags: |
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=raw,value=latest
-
-      - name: Build and push / runner
-        uses: docker/build-push-action@v6
-        with:
-          context: backend
-          target: runner
-          push: true
-          tags: ${{ steps.meta-runner.outputs.tags }}
-          labels: ${{ steps.meta-runner.outputs.labels }}
-          build-args: |
-            VERSION=${{ steps.meta-runner.outputs.version }}
-            COMMIT=${{ gitea.sha }}
-          cache-from: type=registry,ref=${{ secrets.DOCKER_USER }}/libnovel-runner:latest
-          cache-to: type=inline
-
-      # ── ui ───────────────────────────────────────────────────────────────────
       - name: Download ui build artifacts
         uses: actions/download-artifact@v3
         with:
@@ -230,73 +185,16 @@ jobs:
           grep -v '^build$' ui/.dockerignore > ui/.dockerignore.tmp
           mv ui/.dockerignore.tmp ui/.dockerignore
 
-      - name: Docker meta / ui
-        id: meta-ui
-        uses: docker/metadata-action@v5
+      - name: Build and push all images
+        uses: docker/bake-action@v6
         with:
-          images: ${{ secrets.DOCKER_USER }}/libnovel-ui
-          tags: |
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=raw,value=latest
-
-      - name: Build and push / ui
-        uses: docker/build-push-action@v6
-        with:
-          context: ui
-          push: true
-          tags: ${{ steps.meta-ui.outputs.tags }}
-          labels: ${{ steps.meta-ui.outputs.labels }}
-          build-args: |
-            BUILD_VERSION=${{ steps.meta-ui.outputs.version }}
-            BUILD_COMMIT=${{ gitea.sha }}
-            BUILD_TIME=${{ gitea.event.head_commit.timestamp }}
-            PREBUILT=1
-          cache-from: type=registry,ref=${{ secrets.DOCKER_USER }}/libnovel-ui:latest
-          cache-to: type=inline
-
-      # ── caddy ────────────────────────────────────────────────────────────────
-      - name: Docker meta / caddy
-        id: meta-caddy
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ secrets.DOCKER_USER }}/libnovel-caddy
-          tags: |
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=raw,value=latest
-
-      - name: Build and push / caddy
-        uses: docker/build-push-action@v6
-        with:
-          context: caddy
-          push: true
-          tags: ${{ steps.meta-caddy.outputs.tags }}
-          labels: ${{ steps.meta-caddy.outputs.labels }}
-          cache-from: type=registry,ref=${{ secrets.DOCKER_USER }}/libnovel-caddy:latest
-          cache-to: type=inline
-
-      # ── pocketbase ───────────────────────────────────────────────────────────
-      - name: Docker meta / pocketbase
-        id: meta-pocketbase
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ secrets.DOCKER_USER }}/libnovel-pocketbase
-          tags: |
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=raw,value=latest
-
-      - name: Build and push / pocketbase
-        uses: docker/build-push-action@v6
-        with:
-          context: backend
-          target: pocketbase
-          push: true
-          tags: ${{ steps.meta-pocketbase.outputs.tags }}
-          labels: ${{ steps.meta-pocketbase.outputs.labels }}
-          cache-from: type=registry,ref=${{ secrets.DOCKER_USER }}/libnovel-pocketbase:latest
-          cache-to: type=inline
+          files: docker-bake.hcl
+          set: |
+            *.output=type=image,push=true
+        env:
+          GIT_TAG: ${{ gitea.ref_name }}
+          COMMIT: ${{ gitea.sha }}
+          BUILD_TIME: ${{ gitea.event.head_commit.timestamp }}
 
   # ── deploy: sync docker-compose.yml + restart prod ───────────────────────────
   # Runs after all images are pushed to Docker Hub.
@@ -336,7 +234,7 @@ jobs:
             "${{ secrets.PROD_USER }}@${{ secrets.PROD_HOST }}" \
             'set -euo pipefail
              cd /opt/libnovel
-             doppler run -- docker compose pull
+             doppler run -- docker compose pull backend runner ui caddy pocketbase
              doppler run -- docker compose up -d --remove-orphans'
 
   # ── Gitea release ─────────────────────────────────────────────────────────────

docker-bake.hcl

@@ -0,0 +1,109 @@
+# docker-bake.hcl — defines all five production images.
+#
+# Uses only plain variables for broad buildx compatibility (no locals/functions).
+# CI pre-computes VERSION and MAJOR_MINOR from the git tag and passes them as
+# env vars.  Locally, everything gets a :dev tag.
+#
+# Local build (no push):
+#   docker buildx bake
+#
+# CI passes: DOCKER_USER, VERSION, MAJOR_MINOR, COMMIT, BUILD_TIME
+
+variable "DOCKER_USER"  { default = "kalekber" }
+variable "VERSION"      { default = "dev" }    # e.g. "4.1.6"  (no leading v)
+variable "MAJOR_MINOR"  { default = "dev" }    # e.g. "4.1"
+variable "COMMIT"       { default = "unknown" }
+variable "BUILD_TIME"   { default = "" }
+
+# ── Shared defaults ───────────────────────────────────────────────────────────
+
+target "_defaults" {
+  pull     = true
+  # CI overrides to push=true via --set *.output=type=image,push=true
+  output   = ["type=image,push=false"]
+  cache-to = ["type=inline"]
+}
+
+# ── Go targets (share the backend/ build context + builder stage) ─────────────
+
+target "backend" {
+  inherits   = ["_defaults"]
+  context    = "backend"
+  target     = "backend"
+  tags       = [
+    "${DOCKER_USER}/libnovel-backend:${VERSION}",
+    "${DOCKER_USER}/libnovel-backend:${MAJOR_MINOR}",
+    "${DOCKER_USER}/libnovel-backend:latest",
+  ]
+  cache-from = ["type=registry,ref=${DOCKER_USER}/libnovel-backend:latest"]
+  args = {
+    VERSION = VERSION
+    COMMIT  = COMMIT
+  }
+}
+
+target "runner" {
+  inherits   = ["_defaults"]
+  context    = "backend"
+  target     = "runner"
+  tags       = [
+    "${DOCKER_USER}/libnovel-runner:${VERSION}",
+    "${DOCKER_USER}/libnovel-runner:${MAJOR_MINOR}",
+    "${DOCKER_USER}/libnovel-runner:latest",
+  ]
+  cache-from = ["type=registry,ref=${DOCKER_USER}/libnovel-runner:latest"]
+  args = {
+    VERSION = VERSION
+    COMMIT  = COMMIT
+  }
+}
+
+target "pocketbase" {
+  inherits   = ["_defaults"]
+  context    = "backend"
+  target     = "pocketbase"
+  tags       = [
+    "${DOCKER_USER}/libnovel-pocketbase:${VERSION}",
+    "${DOCKER_USER}/libnovel-pocketbase:${MAJOR_MINOR}",
+    "${DOCKER_USER}/libnovel-pocketbase:latest",
+  ]
+  cache-from = ["type=registry,ref=${DOCKER_USER}/libnovel-pocketbase:latest"]
+}
+
+# ── UI (SvelteKit — separate context) ────────────────────────────────────────
+
+target "ui" {
+  inherits   = ["_defaults"]
+  context    = "ui"
+  tags       = [
+    "${DOCKER_USER}/libnovel-ui:${VERSION}",
+    "${DOCKER_USER}/libnovel-ui:${MAJOR_MINOR}",
+    "${DOCKER_USER}/libnovel-ui:latest",
+  ]
+  cache-from = ["type=registry,ref=${DOCKER_USER}/libnovel-ui:latest"]
+  args = {
+    BUILD_VERSION = VERSION
+    BUILD_COMMIT  = COMMIT
+    BUILD_TIME    = BUILD_TIME
+    PREBUILT      = "1"
+  }
+}
+
+# ── Caddy (custom plugins — separate context) ─────────────────────────────────
+
+target "caddy" {
+  inherits   = ["_defaults"]
+  context    = "caddy"
+  tags       = [
+    "${DOCKER_USER}/libnovel-caddy:${VERSION}",
+    "${DOCKER_USER}/libnovel-caddy:${MAJOR_MINOR}",
+    "${DOCKER_USER}/libnovel-caddy:latest",
+  ]
+  cache-from = ["type=registry,ref=${DOCKER_USER}/libnovel-caddy:latest"]
+}
+
+# ── Default group: all five images ────────────────────────────────────────────
+
+group "default" {
+  targets = ["backend", "runner", "pocketbase", "ui", "caddy"]
+}

docker-compose.yml

@@ -96,7 +96,7 @@ services:
 
   # ─── Meilisearch (full-text search) ──────────────────────────────────────────
   meilisearch:
-    image: getmeili/meilisearch:latest
+    image: getmeili/meilisearch:v1.40.0
     restart: unless-stopped
     environment:
       MEILI_MASTER_KEY: "${MEILI_MASTER_KEY}"

justfile

@@ -63,7 +63,7 @@ build-push: build push
 
 # Pull all images from Docker Hub (uses GIT_TAG from Doppler)
 pull-images:
-    {{doppler}} docker compose pull backend runner ui caddy
+    {{doppler}} docker compose pull backend runner ui caddy pocketbase
 
 # Pull all third-party base images (minio, pocketbase, etc.)
 pull-infra: