feat(ci): build multi-arch iamge

.drone.yml

@@ -1,7 +1,10 @@
 ---
 kind: pipeline
 type: docker
-name: default
+name: amd64
+
+platform:
+  arch: amd64
 
 steps:
   - name: Build image
@@ -11,13 +14,68 @@ steps:
       - |
         echo "{\"auths\": {\"https://code.icb4dc0.de\": {\"auth\" : \"$(printf '%s:%s' $GITEA_USER $GITEA_TOKEN | base64)\" }}}" > /kaniko/.docker/config.json
         /kaniko/executor \
-        --destination code.icb4dc0.de/buildr/docs:latest \
-        --destination code.icb4dc0.de/buildr/docs:$DRONE_COMMIT_SHA \
-        --context .    
+        --destination "$${IMAGE_REPO}:$${DRONE_COMMIT_SHA}_$${IMAGE_TAG}" \
+        --context "$${BUILD_CONTEXT}"
     environment:
       GITEA_USER: prskr
       GITEA_TOKEN:
         from_secret: gitea_token
+      IMAGE_REPO: code.icb4dc0.de/buildr/docs
+      IMAGE_TAG: x86_64
+      BUILD_CONTEXT: .
+
+---
+kind: pipeline
+type: docker
+name: arm64
+
+platform:
+  arch: arm64
+
+steps:
+  - name: Build image
+    image: gcr.io/kaniko-project/executor:debug
+    network_mode: host
+    commands:
+      - |
+        echo "{\"auths\": {\"https://code.icb4dc0.de\": {\"auth\" : \"$(printf '%s:%s' $GITEA_USER $GITEA_TOKEN | base64)\" }}}" > /kaniko/.docker/config.json
+        /kaniko/executor \
+        --destination "$${IMAGE_REPO}:$${DRONE_COMMIT_SHA}_$${IMAGE_TAG}" \
+        --context "$${BUILD_CONTEXT}"
+    environment:
+      GITEA_USER: prskr
+      GITEA_TOKEN:
+        from_secret: gitea_token
+      IMAGE_REPO: code.icb4dc0.de/buildr/docs
+      IMAGE_TAG: arm64
+      BUILD_CONTEXT: .
+
+---
+kind: pipeline
+type: docker
+name: deploy
+
+depends_on:
+  - amd64
+  - arm64
+
+steps:
+  - name: manifest
+    image: quay.io/buildah/stable
+    network_mode: host
+    privileged: true
+    commands:
+      - buildah login "$${IMAGE_REGISTRY}" --username "$${GITEA_USER}" --password "$${GITEA_TOKEN}"
+      - buildah manifest create "$${IMAGE_REGISTRY}/$${IMAGE_REPO}:$${DRONE_COMMIT_SHA}"
+      - buildah manifest add "$${IMAGE_REGISTRY}/$${IMAGE_REPO}:$${DRONE_COMMIT_SHA}" "docker://$${IMAGE_REGISTRY}/$${IMAGE_REPO}:$${DRONE_COMMIT_SHA}_x86_64"
+      - buildah manifest add "$${IMAGE_REGISTRY}/$${IMAGE_REPO}:$${DRONE_COMMIT_SHA}" "docker://$${IMAGE_REGISTRY}/$${IMAGE_REPO}:$${DRONE_COMMIT_SHA}_arm64"
+      - buildah manifest push --all "$${IMAGE_REGISTRY}/$${IMAGE_REPO}:$${DRONE_COMMIT_SHA}" "docker://$${IMAGE_REGISTRY}/$${IMAGE_REPO}:$${DRONE_COMMIT_SHA}"
+    environment:
+      GITEA_USER: prskr
+      GITEA_TOKEN:
+        from_secret: gitea_token
+      IMAGE_REGISTRY: code.icb4dc0.de
+      IMAGE_REPO: buildr/docs
 
   - name: Deploy docs
     image: code.icb4dc0.de/prskr/ci-images/kustomize:latest