Moved container to ghcr.io

.github/workflows/docker-image.yml

@@ -1,4 +1,13 @@
-name: CD to Docker Hub
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+# GitHub recommends pinning actions to a commit SHA.
+# To get a newer version, you will need to update the SHA.
+# You can also reference a tag or branch, but the action may change without warning.
+
+name: Create and publish a container image
 
 on:
   push:
@@ -7,34 +16,45 @@ on:
   pull_request:
     branches: [ master ]
 
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
 jobs:
-  build:
+  build-and-push-image:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
     steps:
-      - name: Check out the repo
+      - name: Checkout repository
         uses: actions/checkout@v3
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v2
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
-      - name: Docker labels & tags metadata
-        id: meta
-        uses: docker/metadata-action@v4
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@219c305e1ce92a755f3aa4ba17387c95df31e987
         with:
-          images: vshn/antora
-      - name: Log in to Docker Hub
-        if: github.event_name != 'pull_request'
-        uses: docker/login-action@v2
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
         with:
-          username: ${{ secrets.DOCKER_HUB_USERNAME }}
-          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
-      - name: Build and push to Docker Hub
-        uses: docker/build-push-action@v4
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
         with:
           context: .
-          push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.meta.outputs.tags }} # push both tag name and "latest" on new git tag
-          labels: ${{ steps.meta.outputs.labels }}
+          push: true
           platforms: linux/amd64,linux/arm64
-          cache-from: type=gha
-          cache-to: type=gha,mode=max
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

README.adoc

@@ -1,11 +1,9 @@
 = Custom Antora Image
 
-This repository builds an extended https://antora.org/[Antora] Docker image, used to build documentation projects at VSHN.
+This repository builds an extended https://antora.org/[Antora] container image, used to build documentation projects at VSHN.
 
 It is based on the information provided in the https://docs.antora.org/antora/2.1/antora-container/[Antora documentation].
 
-The image is available at Docker Hub as https://hub.docker.com/r/vshn/antora[vshn/antora].
-
 == Usage
 
 Use the following commands on the root of an Antora project. In both cases you should have an output folder with the documentation following the instructions in the `playbook.yml` file.
@@ -14,7 +12,7 @@ Use the following commands on the root of an Antora project. In both cases you s
 
 [source,bash]
 --
-podman run --rm --volume "${PWD}":/antora docker.io/vshn/antora:${VERSION} playbook.yml --cache-dir=.cache/antora
+podman run --rm --volume "${PWD}":/antora ghcr.io/vshn/antora:${VERSION} playbook.yml --cache-dir=.cache/antora
 --
 
 === Docker