From b9fc79f608fefccc2e6047854c3549bd09fc132b Mon Sep 17 00:00:00 2001
From: Michal Budzyn <michalbudzyn@gmail.com>
Date: Mon, 26 Feb 2024 20:45:01 +0100
Subject: [PATCH] multi-platform docker images

---
 .github/workflows/release.yml |  1 +
 .goreleaser.yaml              | 29 +++++++++++++++++++++++++++--
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 022d407..975a1da 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -33,6 +33,7 @@ jobs:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: docker/setup-qemu-action@v3
       - uses: goreleaser/goreleaser-action@v5          # run goreleaser
         with:
           version: latest
diff --git a/.goreleaser.yaml b/.goreleaser.yaml
index a97db87..d1fbc5d 100644
--- a/.goreleaser.yaml
+++ b/.goreleaser.yaml
@@ -62,18 +62,43 @@ signs:
 
 # create a docker image
 # https://goreleaser.com/customization/docker
+# https://goreleaser.com/cookbooks/multi-platform-docker-images/
 dockers:
   - image_templates:
-      - "ghcr.io/grepplabs/reverse-http:{{ .Tag }}"
-      - "ghcr.io/grepplabs/reverse-http:latest"
+      - "ghcr.io/grepplabs/reverse-http:{{ .Tag }}-amd64"
     dockerfile: Dockerfile
+    use: buildx
     build_flag_templates:
       - "--pull"
+      - "--platform=linux/amd64"
       - "--label=org.opencontainers.image.created={{.Date}}"
       - "--label=org.opencontainers.image.name={{.ProjectName}}"
       - "--label=org.opencontainers.image.revision={{.FullCommit}}"
       - "--label=org.opencontainers.image.version={{.Version}}"
       - "--label=org.opencontainers.image.source={{.GitURL}}"
+  - image_templates:
+      - "ghcr.io/grepplabs/reverse-http:{{ .Tag }}-arm64"
+    dockerfile: Dockerfile
+    use: buildx
+    build_flag_templates:
+      - "--pull"
+      - "--platform=linux/arm64"
+      - "--label=org.opencontainers.image.created={{.Date}}"
+      - "--label=org.opencontainers.image.name={{.ProjectName}}"
+      - "--label=org.opencontainers.image.revision={{.FullCommit}}"
+      - "--label=org.opencontainers.image.version={{.Version}}"
+      - "--label=org.opencontainers.image.source={{.GitURL}}"
+
+# https://goreleaser.com/customization/docker_manifest/
+docker_manifests:
+- name_template: 'ghcr.io/grepplabs/reverse-http:{{ .Tag }}'
+  image_templates:
+  - 'ghcr.io/grepplabs/reverse-http:{{ .Tag }}-amd64'
+  - 'ghcr.io/grepplabs/reverse-http:{{ .Tag }}-arm64'
+- name_template: 'ghcr.io/grepplabs/reverse-http:latest'
+  image_templates:
+  - 'ghcr.io/grepplabs/reverse-http:{{ .Tag }}-amd64'
+  - 'ghcr.io/grepplabs/reverse-http:{{ .Tag }}-arm64'
 
 # signs our docker image
 # https://goreleaser.com/customization/docker_sign