add release action

.github/workflows/ci.yaml

@@ -1,5 +1,8 @@
 name: Run Django tests for TubeSync
 
+env:
+  IMAGE_NAME: tubesync
+
 on:
   push:
     branches:
@@ -40,8 +43,5 @@ jobs:
     - name: Push image to GitHub Container Registry
       run: |
         LATEST_TAG=ghcr.io/meeb/$IMAGE_NAME:latest
-        DATED_TAG=ghcr.io/meeb/$IMAGE_NAME:$(date +%s)
         docker tag $IMAGE_NAME $LATEST_TAG
-        docker tag $IMAGE_NAME $DATED_TAG
         docker push $LATEST_TAG
-        docker push $DATED_TAG

.github/workflows/release.yaml

@@ -0,0 +1,22 @@
+name: Release TubeSync
+
+env:
+  IMAGE_NAME: tubesync
+
+on:
+  release
+
+jobs:
+  containerise:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Build the container image
+      run: docker build . --tag $IMAGE_NAME
+    - name: Log into GitHub Container Registry
+      run: echo "${{ secrets.REGISTRY_ACCESS_TOKEN }}" | docker login https://ghcr.io -u ${{ github.actor }} --password-stdin
+    - name: Push image to GitHub Container Registry
+      run: |
+        REF_TAG=ghcr.io/meeb/$IMAGE_NAME:$GITHUB_REF
+        docker tag $IMAGE_NAME $REF_TAG
+        docker push $REF_TAG