use reusable workflows to test PRs without pushing to the registry

Author: chasebolt

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

@@ -1,9 +1,14 @@
 name: Build Docker Image
 
 on:
-  push:
-    branches:
-      - "master"
+  workflow_call:
+    inputs:
+      push_images:
+        default: false
+        type: boolean
+    secrets:
+      dockerhub_username:
+      dockerhub_token:
 
 jobs:
   docker:
@@ -18,109 +23,110 @@ jobs:
       - name: Login to DockerHub
         uses: docker/login-action@v1
         with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-      - name: Build And Push 7.1-alpine
+          username: ${{ secrets.dockerhub_username }}
+          password: ${{ secrets.dockerhub_token }}
+        if: github.ref_name == github.event.repository.default_branch
+      - name: Build 7.1-alpine
         uses: docker/build-push-action@v2
         with:
           context: .
           file: ./images/7.1/Dockerfile-alpine
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:7.1-alpine
-      - name: Build And Push 7.2-alpine
+      - name: Build 7.2-alpine
         uses: docker/build-push-action@v2
         with:
           context: .
           file: ./images/7.2/Dockerfile-alpine
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:7.2-alpine
-      - name: Build And Push 7.3-alpine
+      - name: Build 7.3-alpine
         uses: docker/build-push-action@v2
         with:
           context: .
           file: ./images/7.3/Dockerfile-alpine
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:7.3-alpine
-      - name: Build And Push 7.4-alpine
+      - name: Build 7.4-alpine
         uses: docker/build-push-action@v2
         with:
           context: .
           file: ./images/7.4/Dockerfile-alpine
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:7.4-alpine
-      - name: Build And Push 8.0-alpine
+      - name: Build 8.0-alpine
         uses: docker/build-push-action@v2
         with:
           context: .
           file: ./images/8.0/Dockerfile-alpine
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:8.0-alpine
-      - name: Build And Push 8.1-alpine
+      - name: Build 8.1-alpine
         uses: docker/build-push-action@v2
         with:
           context: .
           file: ./images/8.1/Dockerfile-alpine
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:8.1-alpine
-      - name: Build And Push 8.2-alpine
+      - name: Build 8.2-alpine
         uses: docker/build-push-action@v2
         with:
           context: .
           file: ./images/8.2/Dockerfile-alpine
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:8.2-alpine
-      - name: Build And Push 8.3-alpine
+      - name: Build 8.3-alpine
         uses: docker/build-push-action@v2
         with:
           context: .
           file: ./images/8.3/Dockerfile-alpine
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:8.3-alpine,umutphp/php-docker-images-for-ci:latest-alpine
-      - name: Build And Push 7.1
+      - name: Build 7.1
         uses: docker/build-push-action@v2
         with:
           context: ./images/7.1/
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:7.1
-      - name: Build And Push 7.2
+      - name: Build 7.2
         uses: docker/build-push-action@v2
         with:
           context: ./images/7.2/
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:7.2
-      - name: Build And Push 7.3
+      - name: Build 7.3
         uses: docker/build-push-action@v2
         with:
           context: ./images/7.3/
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:7.3
-      - name: Build And Push 7.4
+      - name: Build 7.4
         uses: docker/build-push-action@v2
         with:
           context: ./images/7.4/
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:7.4
-      - name: Build And Push 8.0
+      - name: Build 8.0
         uses: docker/build-push-action@v2
         with:
           context: ./images/8.0/
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:8.0
-      - name: Build And Push 8.1
+      - name: Build 8.1
         uses: docker/build-push-action@v2
         with:
           context: ./images/8.1/
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:8.1
-      - name: Build And Push 8.2
+      - name: Build 8.2
         uses: docker/build-push-action@v2
         with:
           context: ./images/8.2/
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:8.2
-      - name: Build And Push 8.3
+      - name: Build 8.3
         uses: docker/build-push-action@v2
         with:
           context: ./images/8.3/
-          push: true
+          push: ${{ inputs.push_images }}
           tags: umutphp/php-docker-images-for-ci:8.3,umutphp/php-docker-images-for-ci:latest

.github/workflows/release.yml

@@ -0,0 +1,15 @@
+name: Build & Push Docker Images
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  call-reusable-workflow:
+    uses: ./.github/workflows/build-docker-image.yml
+    with:
+      push_images: true
+    secrets:
+      dockerhub_username: ${{ secrets.DOCKERHUB_USERNAME }}
+      dockerhub_token: ${{ secrets.DOCKERHUB_TOKEN }}

.github/workflows/test.yml

@@ -0,0 +1,8 @@
+name: Build Docker Images
+
+on:
+  pull_request:
+
+jobs:
+  call-reusable-workflow:
+    uses: ./.github/workflows/build-docker-image.yml