ci: move docker image buildining into another workflow

Author: avivace

.github/workflows/build-and-deploy.yml

@@ -21,6 +21,7 @@ env:
 
 jobs:
   build:
+    name: Build Pan Docs
     runs-on: ubuntu-latest
     steps:
     - name: Checkout pandocs
@@ -69,6 +70,7 @@ jobs:
         if-no-files-found: error
 
   deploy:
+    name: Deploy to GitHub pages
     runs-on: ubuntu-latest
     needs: build
     # Do not run this unless *pushing* to `master`
@@ -100,17 +102,3 @@ jobs:
         git add -A
         git commit -am 'Update build'
         git push -v
-  publish-docker-image:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - name: Login to GitHub Container Registry
-      uses: docker/login-action@v1
-      with:
-        registry: ghcr.io
-        username: ${{ github.actor }}
-        password: ${{ secrets.GITHUB_TOKEN }}
-    - name: Build and push Docker image to the GHCR
-      run: |
-             docker build . --tag ghcr.io/gbdev/pandocs:latest
-             docker push ghcr.io/gbdev/pandocs:latest

.github/workflows/push-docker-image.yml

@@ -0,0 +1,22 @@
+name: Build Docker image and publish it to GitHub Container Registry
+
+on:
+  push:
+    branches:    
+      - master
+
+jobs:
+  publish-docker-image:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Login to GitHub Container Registry
+      uses: docker/login-action@v1
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+    - name: Build and push Docker image to the GHCR
+      run: |
+             docker build . --tag ghcr.io/gbdev/pandocs:latest
+             docker push ghcr.io/gbdev/pandocs:latest