Simplify build and push of container. (#6)

Author: pantierra

.github/workflows/container.yaml

@@ -4,10 +4,10 @@ on:
   push:
     branches:
       - main
-  pull_request:
+  workflow_dispatch:
 
 jobs:
-  build:
+  docker-publish:
     runs-on: ubuntu-latest
 
     steps:
@@ -17,26 +17,17 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
 
-      - name: Build Docker image
-        run: |
-          docker build -t ghcr.io/${{ github.repository }}:${{ github.sha }} .
-
-  push:
-    runs-on: ubuntu-latest
-    needs: build
-    if: github.ref == 'refs/heads/main'
-
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
       - name: Log in to GitHub Container Registry
         uses: docker/login-action@v2
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Build Docker image
+        run: |
+          docker build -t ghcr.io/${{ github.repository }}:${{ github.sha }} .
+
       - name: Push Docker image
         run: |
           docker push ghcr.io/${{ github.repository }}:${{ github.sha }}