Add a workflow to publish the Docker image

.github/workflows/publish.yml

@@ -0,0 +1,56 @@
+name: Publish Docker image
+
+permissions:
+    contents: read
+    packages: write
+
+on:
+  push:
+    tags:
+       - 'v*'
+
+env:
+    IMAGE_TAG: docker.io/botsudo/docker-openldap:latest
+
+jobs:
+  push_to_registry:
+    environment:
+        name: Docker Hub
+        url: https://hub.docker.com/r/botsudo/docker-openldap
+    name: Push Docker image to DockerHub and GitHub Container Registry
+    runs-on: ubuntu-latest
+    steps:
+        - name: Check out the repository
+          uses: actions/checkout@v3
+        - name: Login to DockerHub
+          uses: docker/login-action@v1
+          with:
+            registry: docker.io
+            username: ${{ secrets.DOCKER_REPOSITORY_LOGIN }}
+            password: ${{ secrets.DOCKER_REPOSITORY_PASSWORD }}
+
+        - name: Build image
+          run: make docker-build
+        - name: Test image
+          run: make test
+
+        #- name: Sign and push docker image
+        #  uses: sudo-bot/action-docker-sign@latest
+        #  with:
+        #    image-ref: "docker.io/botsudo/action-docker-compose:latest"
+        #    private-key-id: "${{ secrets.DOCKER_PRIVATE_KEY_ID }}"
+        #    private-key: ${{ secrets.DOCKER_PRIVATE_KEY }}
+        #    private-key-passphrase: ${{ secrets.DOCKER_PRIVATE_KEY_PASSPHRASE }}
+
+        - name: Push to GHCR
+          run: make docker-push
+        - name: Tag for GHCR
+          run: make docker-tag-ghcr
+        - name: Login to GitHub Container Registry
+          uses: docker/login-action@v2
+          with:
+            registry: ghcr.io
+            username: ${{ github.actor }}
+            password: ${{ secrets.GITHUB_TOKEN }}
+        - name: Push to GitHub Container Registry
+          run: make docker-push-ghcr

Makefile

@@ -1,10 +1,23 @@
+IMAGE_TAG ?= action-docker-compose
+IMAGE_TAG_GHCR ?= ghcr.io/sudo-bot/docker-openldap/docker-openldap:latest
+
 .PHONY: update-tags docker-build
 
 docker-build:
 	docker build ./docker \
+		--tag $(IMAGE_TAG) \
 		--build-arg VCS_REF=`git rev-parse HEAD` \
 		--build-arg BUILD_DATE=`date -u +"%Y-%m-%dT%H:%M:%SZ"`
 
+docker-tag-ghcr:
+	docker tag $(IMAGE_TAG) $(IMAGE_TAG_GHCR)
+
+docker-push:
+	docker push $(IMAGE_TAG)
+
+docker-push-ghcr:
+	docker push $(IMAGE_TAG_GHCR)
+
 update-tags:
 	git checkout main
 	git tag -s -f -a -m "latest series" latest