build: Switched to GHA cache (#1153)

.github/workflows/build-multiarch.yml

@@ -20,8 +20,11 @@ on:
       - "docs/**"
       - "examples/**"
 
+env:
+  IMAGE_TO_TEST: itzg/minecraft-server:test-${{ github.repository_owner }}-${{ github.run_id }}
+
 jobs:
-  docker-buildx:
+  build:
     if: github.repository == 'itzg/docker-minecraft-server'
     runs-on: ubuntu-20.04
     steps:
@@ -43,14 +46,6 @@ jobs:
       - name: Setup Docker Buildx
         uses: docker/setup-buildx-action@v1
 
-      - name: Cache Docker layers
-        uses: actions/cache@v2.1.7
-        with:
-          path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-buildx-${{ github.sha }}
-          restore-keys: |
-            ${{ runner.os }}-buildx-
-
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1.2.0
 
@@ -60,6 +55,26 @@ jobs:
           username: ${{ secrets.DOCKER_USER }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
+      - name: Build for test
+        uses: docker/build-push-action@v2.7.0
+        if: github.ref_name == 'master'
+        with:
+          context: .
+          platforms: linux/amd64
+          tags: ${{ env.IMAGE_TO_TEST }}
+          # ensure latest base image is used
+          pull: true
+          load: true
+          push: false
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Run tests
+        # It is assumed that image variants are merged from master and tested there
+        if: github.ref_name == 'master'
+        run: |
+          tests/test.sh
+
       - name: Build and push
         id: docker_build
         uses: docker/build-push-action@v2.7.0
@@ -70,17 +85,9 @@ jobs:
           tags: ${{ steps.meta.outputs.tags }}
           # ensure latest base image is used
           pull: true
-          cache-from: type=local,src=/tmp/.buildx-cache
-          cache-to: type=local,dest=/tmp/.buildx-cache-new
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
           labels: ${{ steps.meta.outputs.labels }}
 
       - name: Image digest
         run: echo ${{ steps.docker_build.outputs.digest }}
-
-      - # Temp fix
-        # https://github.com/docker/build-push-action/issues/252
-        # https://github.com/moby/buildkit/issues/1896
-        name: Move cache
-        run: |
-          rm -rf /tmp/.buildx-cache
-          mv /tmp/.buildx-cache-new /tmp/.buildx-cache

.github/workflows/main.yml

@@ -15,6 +15,9 @@ on:
       - "[0-9]+.[0-9]+.[0-9]+-openj9-nightly"
       - "[0-9]+.[0-9]+.[0-9]+-adopt11"
 
+env:
+  IMAGE_TO_TEST: itzg/minecraft-server:test-${{ github.repository_owner }}-${{ github.run_id }}
+
 jobs:
   test:
     runs-on: ubuntu-20.04
@@ -54,20 +57,31 @@ jobs:
     - name: Setup Docker Buildx
       uses: docker/setup-buildx-action@v1
 
-    - name: Cache Docker layers
-      uses: actions/cache@v2.1.7
-      with:
-        path: /tmp/.buildx-cache
-        key: ${{ runner.os }}-buildx-${{ github.sha }}
-        restore-keys: |
-          ${{ runner.os }}-buildx-
-
     - name: Login to DockerHub
       uses: docker/login-action@v1
       with:
         username: ${{ secrets.DOCKER_USER }}
         password: ${{ secrets.DOCKER_PASSWORD }}
 
+    - name: Build for test
+      uses: docker/build-push-action@v2.7.0
+      if: github.ref_name == 'master'
+      with:
+        context: .
+        platforms: linux/amd64
+        tags: ${{ env.IMAGE_TO_TEST }}
+        # ensure latest base image is used
+        pull: true
+        load: true
+        push: false
+        cache-from: type=gha
+        cache-to: type=gha,mode=max
+
+    - name: Run tests
+      if: github.ref_name == 'master'
+      run: |
+        tests/test.sh
+
     - name: Build and push
       id: docker_build
       uses: docker/build-push-action@v2.7.0
@@ -80,8 +94,8 @@ jobs:
         push: true
         # tags determined by prep step
         tags: ${{ steps.prep.outputs.tags }}
-        cache-from: type=local,src=/tmp/.buildx-cache
-        cache-to: type=local,dest=/tmp/.buildx-cache-new
+        cache-from: type=gha
+        cache-to: type=gha,mode=max
         labels: |
           org.opencontainers.image.documentation=https://github.com/itzg/docker-minecraft-server
           org.opencontainers.image.version=${{ steps.prep.outputs.version }}
@@ -90,11 +104,3 @@ jobs:
 
     - name: Image digest
       run: echo ${{ steps.docker_build.outputs.digest }}
-
-    - # Temp fix
-      # https://github.com/docker/build-push-action/issues/252
-      # https://github.com/moby/buildkit/issues/1896
-      name: Move cache
-      run: |
-        rm -rf /tmp/.buildx-cache
-        mv /tmp/.buildx-cache-new /tmp/.buildx-cache

.github/workflows/pr.yml

@@ -4,6 +4,9 @@ on:
   pull_request:
     branches: [ master ]
 
+env:
+  IMAGE_TO_TEST: itzg/minecraft-server:test-${{ github.repository_owner }}-${{ github.run_id }}
+
 jobs:
   test:
     runs-on: ubuntu-latest
@@ -11,6 +14,19 @@ jobs:
     steps:
       - uses: actions/checkout@v2.4.0
 
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Build
+        uses: docker/build-push-action@v2.7.0
+        with:
+          context: .
+          platforms: linux/amd64
+          tags: ${{ env.IMAGE_TO_TEST }}
+          load: true
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
       - name: Run tests
         run: |
           tests/test.sh

tests/docker-compose.test.yml

@@ -1,20 +1,14 @@
 version: "3.8"
 
 services:
-  sut:
+  monitor:
     depends_on:
       - mc
-    image: itzg/mc-monitor:0.6.0
-    command: status --host mc --retry-interval 1s --retry-limit 120
+    image: itzg/mc-monitor:${MC_MONITOR_VERSION:-0.10.4}
+    command: --debug status --host mc --retry-interval 1s --retry-limit 240
   mc:
     restart: "no"
-    build:
-      context: ..
-      args:
-        TARGETOS: linux
-        TARGETARCH: amd64
-      cache_from:
-      - itzg/minecraft-server:latest
+    image: ${IMAGE_TO_TEST:-itzg/minecraft-server}
     environment:
       EULA: "TRUE"
 

tests/docker-compose.yml

@@ -0,0 +1,14 @@
+version: "3.8"
+
+services:
+  monitor:
+    depends_on:
+      - mc
+    image: itzg/mc-monitor:${MC_MONITOR_VERSION:-0.10.4}
+    command: status --host mc --retry-interval 1s --timeout 1s --retry-limit 240
+  mc:
+    restart: "no"
+    image: ${IMAGE_TO_TEST:-itzg/minecraft-server}
+    environment:
+      EULA: "TRUE"
+

tests/test.sh

@@ -1,17 +1,22 @@
 #!/bin/bash
 
-cd $(dirname $0)
+cd "$(dirname "$0")" || exit 1
 
 failed=false
-args="-f docker-compose.test.yml"
-docker-compose $args run sut || failed=true
+
+down() {
+  docker-compose down -v
+}
+
+docker-compose run monitor || failed=true
 echo "
 Result: failed=$failed"
 
-$failed && docker-compose $args logs mc
-docker-compose $args down -v
-
 if $failed; then
+  docker-compose logs mc
+  down
   exit 1
+else
+  down
 fi