build docker image in multiarch

.github/workflows/release.yml

@@ -10,9 +10,11 @@ jobs:
     - uses: actions/setup-go@v2
       with:
         go-version: 1.17.x
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v1
     - uses: docker/login-action@v1
       with:
-        registry: https://ghcr.io
+        registry: ghcr.io
         username: choffmeister
         password: ${{ secrets.GITHUB_TOKEN }}
     - uses: actions/checkout@v2

.goreleaser.yml

@@ -13,17 +13,32 @@ builds:
     goarch:
       - amd64
       - arm64
-archives:
-  - replacements:
-      darwin: Darwin
-      linux: Linux
-      windows: Windows
-      386: i386
-      amd64: x86_64
 dockers:
   - image_templates:
-      - "ghcr.io/choffmeister/{{ .ProjectName }}:{{ .Tag }}"
-      - "ghcr.io/choffmeister/{{ .ProjectName }}:latest"
+      - "ghcr.io/choffmeister/{{ .ProjectName }}:{{ .Version }}-amd64"
+      - "ghcr.io/choffmeister/{{ .ProjectName }}:latest-amd64"
+    use: buildx
+    goarch: amd64
+    dockerfile: Dockerfile
+    build_flag_templates:
+      - "--platform=linux/amd64"
+  - image_templates:
+      - "ghcr.io/choffmeister/{{ .ProjectName }}:{{ .Version }}-arm64v8"
+      - "ghcr.io/choffmeister/{{ .ProjectName }}:latest-arm64v8"
+    use: buildx
+    goarch: arm64
+    dockerfile: Dockerfile
+    build_flag_templates:
+      - "--platform=linux/arm64/v8"
+docker_manifests:
+  - name_template: ghcr.io/choffmeister/{{ .ProjectName }}:{{ .Version }}
+    image_templates:
+      - ghcr.io/choffmeister/{{ .ProjectName }}:{{ .Version }}-amd64
+      - ghcr.io/choffmeister/{{ .ProjectName }}:{{ .Version }}-arm64v8
+  - name_template: ghcr.io/choffmeister/{{ .ProjectName }}:latest
+    image_templates:
+      - ghcr.io/choffmeister/{{ .ProjectName }}:latest-amd64
+      - ghcr.io/choffmeister/{{ .ProjectName }}:latest-arm64v8
 checksum:
   name_template: 'checksums.txt'
 snapshot: