build multi-arch docker image via goreleaser

.github/workflows/release.yaml

@@ -15,11 +15,19 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
           go-version-file: go.mod
 
+      - name: Docker login
+        env:
+          GITHUB_REGISTRY_TOKEN: ${{ secrets.GHCR_TOKEN }}
+        run: echo ${GITHUB_REGISTRY_TOKEN} | docker login ghcr.io -u odyfey --password-stdin
+
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v6
         with:

.goreleaser.yaml

@@ -14,3 +14,28 @@ archives:
   - format: tar.gz
     files:
       - LICENSE
+
+dockers:
+- image_templates:
+  - &amd_image 'ghcr.io/odyfey/tern:{{ .Tag }}-amd64'
+  use: buildx
+  build_flag_templates:
+  - "--push"
+  - "--platform=linux/amd64"
+- image_templates:
+  - &arm_image 'ghcr.io/odyfey/tern:{{ .Tag }}-arm64'
+  use: buildx
+  build_flag_templates:
+  - "--push"
+  - "--platform=linux/arm64"
+  goarch: arm64
+
+docker_manifests:
+- name_template: 'ghcr.io/odyfey/tern:{{ .Tag }}'
+  image_templates:
+    - *amd_image
+    - *arm_image
+- name_template: 'ghcr.io/odyfey/tern:latest'
+  image_templates:
+    - *amd_image
+    - *arm_image

Dockerfile

@@ -0,0 +1,16 @@
+FROM golang:1.22-alpine as build
+
+ENV CGO_ENABLED=0
+
+WORKDIR /build
+
+COPY go.*  ./
+COPY *.go ./
+COPY migrate ./migrate
+
+RUN go build -o tern
+
+FROM alpine:3.20
+COPY --from=build /build/tern /tern
+ENTRYPOINT ["/tern"]
+