Add multi-platform Docker support for smoke-test-fake-backend

.github/workflows/pr-smoke-test-fake-backend-images.yml

@@ -18,6 +18,12 @@ jobs:
       - name: Free disk space
         run: .github/scripts/gha-free-disk-space.sh
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@74864c85e1b5b09616e0e31b99c23db4e95b1011 # v3.2.0
+
       - name: Set up JDK for running Gradle
         uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4.7.1
         with:
@@ -29,9 +35,12 @@ jobs:
         with:
           cache-read-only: true
 
-      - name: Build Docker image
+      - name: Build Docker image (Jib - backward compatibility)
         run: ./gradlew :smoke-tests:images:fake-backend:jibDockerBuild -Djib.httpTimeout=120000 -Djib.console=plain
 
+      - name: Build multi-platform Docker image
+        run: ./gradlew :smoke-tests:images:fake-backend:linuxBackendMultiPlatformImageBuild
+
   buildWindows:
     runs-on: windows-latest
     defaults:

.github/workflows/publish-smoke-test-fake-backend-images.yml

@@ -24,6 +24,12 @@ jobs:
       - name: Free disk space
         run: .github/scripts/gha-free-disk-space.sh
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@74864c85e1b5b09616e0e31b99c23db4e95b1011 # v3.2.0
+
       - name: Set up JDK for running Gradle
         uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4.7.1
         with:
@@ -43,9 +49,12 @@ jobs:
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@ac638b010cf58a27ee6c972d7336334ccaf61c96 # v4.4.1
 
-      - name: Build Docker image
+      - name: Build Docker image (Jib - backward compatibility)
         run: ./gradlew :smoke-tests:images:fake-backend:jib -Djib.httpTimeout=120000 -Djib.console=plain -PextraTag=${{ env.TAG }}
 
+      - name: Build and push multi-platform Docker image
+        run: ./gradlew :smoke-tests:images:fake-backend:linuxBackendMultiPlatformImagePush -PextraTag=${{ env.TAG }}
+
   publishWindows:
     permissions:
       contents: read

build-scan.txt

@@ -0,0 +1 @@
+https://gradle.com/s/wkoqcfy2t2l3a

smoke-tests/images/fake-backend/build.gradle.kts

@@ -71,4 +71,42 @@ tasks {
     dependsOn(windowsBackendImageBuild)
     images.add("ghcr.io/$repo/smoke-test-fake-backend-windows:$extraTag")
   }
+
+  val linuxBackendImagePrepare by registering(Copy::class) {
+    dependsOn(shadowJar)
+    into(backendDockerBuildDir)
+    from("src/docker/backend")
+    from(shadowJar.get().outputs) {
+      rename { "fake-backend.jar" }
+    }
+  }
+
+  val linuxBackendMultiPlatformImageBuild by registering(Exec::class) {
+    dependsOn(linuxBackendImagePrepare)
+    group = "docker"
+    description = "Build multi-platform Linux Docker image for the test backend"
+    workingDir(backendDockerBuildDir)
+    commandLine(
+      "docker", "buildx", "build",
+      "--platform", "linux/amd64,linux/arm64",
+      "--tag", "ghcr.io/$repo/smoke-test-fake-backend:$extraTag",
+      "--file", "Dockerfile",
+      "."
+    )
+  }
+
+  val linuxBackendMultiPlatformImagePush by registering(Exec::class) {
+    dependsOn(linuxBackendImagePrepare)
+    group = "publishing"
+    description = "Build and push multi-platform Linux Docker image for the test backend"
+    workingDir(backendDockerBuildDir)
+    commandLine(
+      "docker", "buildx", "build",
+      "--platform", "linux/amd64,linux/arm64",
+      "--tag", "ghcr.io/$repo/smoke-test-fake-backend:$extraTag",
+      "--file", "Dockerfile",
+      "--push",
+      "."
+    )
+  }
 }

smoke-tests/images/fake-backend/src/docker/backend/Dockerfile

@@ -0,0 +1,3 @@
+FROM eclipse-temurin:11-jre
+COPY fake-backend.jar /fake-backend.jar
+CMD ["java", "-jar", "/fake-backend.jar"]