feat: multi-arch Docker image (amd64 + arm64)

.github/workflows/goreleaser.yml

@@ -21,6 +21,10 @@ jobs:
       with:
         go-version-file: go.mod
 
+    - uses: docker/setup-qemu-action@v3
+
+    - uses: docker/setup-buildx-action@v3
+
     - uses: docker/login-action@v4
       with:
         registry: ghcr.io

.goreleaser.yaml

@@ -34,7 +34,12 @@ changelog:
       - "^docs:"
       - "^test:"
 
-dockers:
-  - image_templates:
-    - "ghcr.io/laenzlinger/setlist:latest"
-    - "ghcr.io/laenzlinger/setlist:{{ .Tag }}"
+dockers_v2:
+  - images:
+      - "ghcr.io/laenzlinger/setlist"
+    tags:
+      - "{{ .Tag }}"
+      - "latest"
+    platforms:
+      - linux/amd64
+      - linux/arm64

Dockerfile

@@ -1,5 +1,7 @@
 FROM docker.io/chromedp/headless-shell:latest
 
+ARG TARGETPLATFORM
+
 RUN apt-get update \
  && apt-get install -y libreoffice-writer \
  && rm -rf /var/lib/apt/lists/*
@@ -14,6 +16,6 @@ RUN mkdir /repertoire
 
 WORKDIR /repertoire
 
-COPY setlist /setlist
+COPY ${TARGETPLATFORM}/setlist /setlist
 
 ENTRYPOINT [ "/setlist" ]

Makefile

@@ -38,8 +38,14 @@ clean: ## clean all output files
 	rm -rf dist
 	go clean -testcache
 
-docker-build: build ## build the ocker container
-	docker build -t $(DOCKER_IMAGE):latest .
+docker-build: build ## build the docker image (native arch)
+	@mkdir -p linux/$(shell go env GOARCH)
+	@cp setlist linux/$(shell go env GOARCH)/setlist
+	docker build --build-arg TARGETPLATFORM=linux/$(shell go env GOARCH) -t $(DOCKER_IMAGE):latest .
+	@rm -rf linux
+
+docker-build-multiarch: ## build multi-arch docker image via goreleaser snapshot
+	goreleaser release --snapshot --clean
 
 help:
 	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'