Add workflow for pull requests on master

.github/workflows/pr_checks.yml

@@ -0,0 +1,141 @@
+name: PR Checks
+
+on:
+  pull_request:
+    branches: master
+  workflow_dispatch:
+
+jobs:
+  build-ckan-2-9:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx
+
+      - name: Build CKAN 2.9 alpine
+        uses: docker/build-push-action@v2
+        with:
+          context: ./images/ckan/2.9
+          file: ./images/ckan/2.9/Dockerfile
+          push: false
+          tags: keitaro/ckan:2.9
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,mode=max,dest=/tmp/.buildx-cache
+
+      - name: Build CKAN 2.9 ubuntu
+        uses: docker/build-push-action@v2
+        with:
+          context: ./images/ckan/2.9
+          file: ./images/ckan/2.9/Dockerfile.focal
+          push: false
+          tags: keitaro/ckan:2.9-focal
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,mode=max,dest=/tmp/.buildx-cache
+
+  build-ckan-2-8:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Build CKAN 2.8 alpine
+        uses: docker/build-push-action@v2
+        with:
+          context: ./images/ckan/2.8
+          file: ./images/ckan/2.8/Dockerfile
+          push: false
+          tags: keitaro/ckan:2.8
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,mode=max,dest=/tmp/.buildx-cache
+
+      - name: Build CKAN 2.8 ubuntu
+        uses: docker/build-push-action@v2
+        with:
+          context: ./images/ckan/2.8
+          file: ./images/ckan/2.8/Dockerfile.focal
+          push: false
+          tags: keitaro/ckan:2.8-focal
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,mode=max,dest=/tmp/.buildx-cache
+
+  build-ckan-2-7:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Build CKAN 2.7 alpine
+        uses: docker/build-push-action@v2
+        with:
+          context: ./images/ckan/2.7
+          file: ./images/ckan/2.7/Dockerfile
+          push: false
+          tags: keitaro/ckan:2.7
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,mode=max,dest=/tmp/.buildx-cache
+
+      - name: Build CKAN 2.7 ubuntu
+        uses: docker/build-push-action@v2
+        with:
+          context: ./images/ckan/2.7
+          file: ./images/ckan/2.7/Dockerfile.focal
+          push: false
+          tags: keitaro/ckan:2.7-focal
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,mode=max,dest=/tmp/.buildx-cache
+
+  build-ckan-datapusher:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Build CKAN datapusher
+        uses: docker/build-push-action@v2
+        with:
+          context: ./images/datapusher
+          file: ./images/datapusher/Dockerfile
+          push: false
+          tags: keitaro/ckandatapusher:latest
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,mode=max,dest=/tmp/.buildx-cache