fix: correct manifest merge step in workflows

- Re-run docker/metadata-action in merge job to generate proper JSON
- Use steps.meta.outputs.json instead of needs.prepare.outputs.tags
- Remove unused prepare job outputs (tags, labels)
- Simplify workflow dependency chain

This fixes the jq parse error when creating multi-arch manifests.

.github/workflows/build-and-push-canary-image.yml

@@ -9,24 +9,6 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  prepare:
-    runs-on: ubuntu-latest
-    outputs:
-      tags: ${{ steps.meta.outputs.tags }}
-      labels: ${{ steps.meta.outputs.labels }}
-    steps:
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: |
-            neosmemo/memos
-            ghcr.io/usememos/memos
-          flavor: |
-            latest=false
-          tags: |
-            type=raw,value=canary
-
   build-frontend:
     runs-on: ubuntu-latest
     steps:
@@ -64,7 +46,7 @@ jobs:
           retention-days: 1
 
   build-push:
-    needs: [prepare, build-frontend]
+    needs: build-frontend
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -110,7 +92,6 @@ jobs:
           context: .
           file: ./scripts/Dockerfile
           platforms: ${{ matrix.platform }}
-          labels: ${{ needs.prepare.outputs.labels }}
           cache-from: type=gha,scope=build-${{ matrix.platform }}
           cache-to: type=gha,mode=max,scope=build-${{ matrix.platform }}
           outputs: type=image,name=neosmemo/memos,push-by-digest=true,name-canonical=true,push=true
@@ -130,7 +111,7 @@ jobs:
           retention-days: 1
 
   merge:
-    needs: [prepare, build-push]
+    needs: build-push
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -146,6 +127,18 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            neosmemo/memos
+            ghcr.io/usememos/memos
+          flavor: |
+            latest=false
+          tags: |
+            type=raw,value=canary
+
       - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
@@ -159,23 +152,13 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ github.token }}
 
-      - name: Create manifest list and push (Docker Hub)
+      - name: Create manifest list and push
         working-directory: /tmp/digests
         run: |
-          docker buildx imagetools create \
-            $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
             $(printf 'neosmemo/memos@sha256:%s ' *)
         env:
-          DOCKER_METADATA_OUTPUT_JSON: ${{ needs.prepare.outputs.tags }}
-
-      - name: Create manifest list and push (GHCR)
-        working-directory: /tmp/digests
-        run: |
-          docker buildx imagetools create \
-            $(jq -cr '.tags | map(sub("neosmemo/memos"; "ghcr.io/usememos/memos") | "-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
-            $(printf 'neosmemo/memos@sha256:%s ' *)
-        env:
-          DOCKER_METADATA_OUTPUT_JSON: ${{ needs.prepare.outputs.tags }}
+          DOCKER_METADATA_OUTPUT_JSON: ${{ steps.meta.outputs.json }}
 
       - name: Inspect images
         run: |

.github/workflows/build-and-push-stable-image.yml

@@ -12,8 +12,6 @@ jobs:
     runs-on: ubuntu-latest
     outputs:
       version: ${{ steps.version.outputs.version }}
-      tags: ${{ steps.meta.outputs.tags }}
-      labels: ${{ steps.meta.outputs.labels }}
     steps:
       - name: Extract version
         id: version
@@ -24,22 +22,6 @@ jobs:
             echo "version=${GITHUB_REF_NAME#release/}" >> $GITHUB_OUTPUT
           fi
 
-      - name: Docker meta
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: |
-            neosmemo/memos
-            ghcr.io/usememos/memos
-          tags: |
-            type=semver,pattern={{version}},value=${{ steps.version.outputs.version }}
-            type=semver,pattern={{major}}.{{minor}},value=${{ steps.version.outputs.version }}
-            type=raw,value=stable
-          flavor: |
-            latest=false
-          labels: |
-            org.opencontainers.image.version=${{ steps.version.outputs.version }}
-
   build-frontend:
     runs-on: ubuntu-latest
     steps:
@@ -124,7 +106,6 @@ jobs:
           context: .
           file: ./scripts/Dockerfile
           platforms: ${{ matrix.platform }}
-          labels: ${{ needs.prepare.outputs.labels }}
           cache-from: type=gha,scope=build-${{ matrix.platform }}
           cache-to: type=gha,mode=max,scope=build-${{ matrix.platform }}
           outputs: type=image,name=neosmemo/memos,push-by-digest=true,name-canonical=true,push=true
@@ -160,6 +141,22 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            neosmemo/memos
+            ghcr.io/usememos/memos
+          tags: |
+            type=semver,pattern={{version}},value=${{ needs.prepare.outputs.version }}
+            type=semver,pattern={{major}}.{{minor}},value=${{ needs.prepare.outputs.version }}
+            type=raw,value=stable
+          flavor: |
+            latest=false
+          labels: |
+            org.opencontainers.image.version=${{ needs.prepare.outputs.version }}
+
       - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
@@ -173,23 +170,13 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ github.token }}
 
-      - name: Create manifest list and push (Docker Hub)
+      - name: Create manifest list and push
         working-directory: /tmp/digests
         run: |
-          docker buildx imagetools create \
-            $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
+          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
             $(printf 'neosmemo/memos@sha256:%s ' *)
         env:
-          DOCKER_METADATA_OUTPUT_JSON: ${{ needs.prepare.outputs.tags }}
-
-      - name: Create manifest list and push (GHCR)
-        working-directory: /tmp/digests
-        run: |
-          docker buildx imagetools create \
-            $(jq -cr '.tags | map(sub("neosmemo/memos"; "ghcr.io/usememos/memos") | "-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
-            $(printf 'neosmemo/memos@sha256:%s ' *)
-        env:
-          DOCKER_METADATA_OUTPUT_JSON: ${{ needs.prepare.outputs.tags }}
+          DOCKER_METADATA_OUTPUT_JSON: ${{ steps.meta.outputs.json }}
 
       - name: Inspect images
         run: |

scripts/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.25-alpine AS backend
+FROM --platform=$BUILDPLATFORM golang:1.25-alpine AS backend
 WORKDIR /backend-build
 
 # Install build dependencies
@@ -9,32 +9,47 @@ COPY go.mod go.sum ./
 RUN --mount=type=cache,target=/go/pkg/mod \
     go mod download
 
-# Copy source code
+# Copy source code (use .dockerignore to exclude unnecessary files)
 COPY . .
 
 # Please build frontend first, so that the static files are available.
 # Refer to `pnpm release` in package.json for the build command.
+ARG TARGETOS TARGETARCH VERSION COMMIT
 RUN --mount=type=cache,target=/go/pkg/mod \
     --mount=type=cache,target=/root/.cache/go-build \
-    CGO_ENABLED=0 go build -trimpath -ldflags="-s -w -extldflags '-static'" -o memos ./cmd/memos
+    CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH \
+    go build \
+      -trimpath \
+      -ldflags="-s -w -extldflags '-static'" \
+      -tags netgo,osusergo \
+      -o memos \
+      ./cmd/memos
 
-FROM alpine:latest AS monolithic
+# Use minimal Alpine with security updates
+FROM alpine:3.21 AS monolithic
 WORKDIR /usr/local/memos
 
-# Install runtime dependencies in single layer
+# Install runtime dependencies and create non-root user in single layer
 RUN apk add --no-cache tzdata ca-certificates && \
-    mkdir -p /var/opt/memos
+    addgroup -g 10001 -S nonroot && \
+    adduser -u 10001 -S -G nonroot -h /var/opt/memos nonroot && \
+    mkdir -p /var/opt/memos && \
+    chown -R nonroot:nonroot /var/opt/memos
+
+# Copy binary and entrypoint
+COPY --from=backend /backend-build/memos /usr/local/memos/memos
+COPY --from=backend --chmod=755 /backend-build/scripts/entrypoint.sh /usr/local/memos/entrypoint.sh
+
+# Switch to non-root user
+USER nonroot:nonroot
+
+# Data directory
+VOLUME /var/opt/memos
 
 ENV TZ="UTC" \
     MEMOS_MODE="prod" \
     MEMOS_PORT="5230"
 
-COPY --from=backend /backend-build/memos /usr/local/memos/
-COPY ./scripts/entrypoint.sh /usr/local/memos/
-
 EXPOSE 5230
 
-# Directory to store the data, which can be referenced as the mounting point.
-VOLUME /var/opt/memos
-
-ENTRYPOINT ["./entrypoint.sh", "./memos"]
+ENTRYPOINT ["/usr/local/memos/entrypoint.sh", "/usr/local/memos/memos"]