Push to ghcr.io

.github/workflows/docker.yml

@@ -1,13 +1,21 @@
 name: docker
+
 on:
   push:
     branches:
     - master
     tags:
     - '**'
+  # TODO: Remove this before merging PR
   pull_request:
     branches:
     - master
+
+# This is needed to push to GitHub Container Registry. See https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry
+permissions:
+  contents: read
+  packages: write
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -16,12 +24,14 @@ jobs:
       uses: actions/checkout@v3
 
     # This step generates the docker tags
+    # TODO: Remove type=ref,event=pr before merging PR
     - name: Docker meta
       id: meta
       uses: docker/metadata-action@v4
       with:
         images: |
           ${{ github.repository }}
+          ghcr.io/${{ github.repository }}
         # type=ref,event=pr generates tag(s) on PRs only. E.g. 'pr-123', 'pr-123-abc0123'
         # type=ref,event=branch generates tag(s) on branch only. E.g. 'master', 'master-abc0123'
         # type=ref,event=tag generates tag(s) on tags only. E.g. 'v0.0.0', 'v0.0.0-abc0123', and 'latest'
@@ -55,6 +65,13 @@ jobs:
         username: ${{ secrets.DOCKERHUB_USERNAME }}
         password: ${{ secrets.DOCKERHUB_TOKEN }}
 
+    - name: Login to GitHub Container Registry
+      uses: docker/login-action@v2
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
     - name: Build and push
       id: build-and-push
       uses: docker/build-push-action@v3