Fix promotion job

.drone.yml

@@ -74,9 +74,26 @@ steps:
       REGISTRY_SERVER: "docker.io"
       RELEASE_IMAGE_NAME: "docker.io/genunix/restic"
     commands:
-      - skopeo login --username "$${REGISTRY_USERNAME}" --password "$${REGISTRY_PASSWORD}" "$${REGISTRY_SERVER}"
-      - echo "== Promoting $${RELEASE_IMAGE_NAME}:$${DRONE_COMMIT_SHA} into production"
-      - skopeo copy --preserve-digests --multi-arch all docker://$${RELEASE_IMAGE_NAME}:$${DRONE_COMMIT_SHA} docker://$${RELEASE_IMAGE_NAME}:latest
+      - podman login --username "$${REGISTRY_USERNAME}" --password "$${REGISTRY_PASSWORD}" "$${REGISTRY_SERVER}"
+      - echo "== Pulling $${RELEASE_IMAGE_NAME}:$${DRONE_COMMIT_SHA}"
+      - podman pull --arch amd64 docker://$${RELEASE_IMAGE_NAME}:$${DRONE_COMMIT_SHA}
+      - podman pull --arch arm64 docker://$${RELEASE_IMAGE_NAME}:$${DRONE_COMMIT_SHA}
+      - podman manifest inspect $${RELEASE_IMAGE_NAME}:$${DRONE_COMMIT_SHA}
+      - echo "== Promoting $${RELEASE_IMAGE_NAME}:$${DRONE_COMMIT_SHA} into production as latest tag"
+      - podman manifest push $${RELEASE_IMAGE_NAME}:$${DRONE_COMMIT_SHA} docker://$${RELEASE_IMAGE_NAME}:latest
+      - podman logout "$${REGISTRY_SERVER}"
+    volumes:
+      - name: containers
+        path: /var/lib/containers
+
+  - name: cleanup
+    image: mgoltzsche/podman:5.3.1
+    privileged: true
+    environment:
+      RELEASE_IMAGE_NAME: "docker.io/genunix/restic"
+    commands:
+      - podman manifest rm $${RELEASE_IMAGE_NAME}:$${DRONE_COMMIT_SHA} || true
+      - podman image prune -f
     volumes:
       - name: containers
         path: /var/lib/containers