Jib Multi Arch Build

Demo App Gradle

curl -fsSL https://start.spring.io/starter.tgz \
  -d dependencies=web,actuator,prometheus \
  -d javaVersion=11 \
  -d packageName=com.example \
  -d groupId=com.example \
  -d artifactId=demo-app \
  -d baseDir=demo-app \
  -d type=gradle-project | tar -xzvf -

Demo App Maven

curl -fsSL https://start.spring.io/starter.tgz \
  -d dependencies=web,actuator,prometheus \
  -d javaVersion=11 \
  -d packageName=com.example \
  -d groupId=com.example \
  -d artifactId=demo-app \
  -d baseDir=demo-app \
  -d type=maven-project | tar -xzvf -

Local Registry

docker run -d --rm --name registry -p 5000:5000 registry:2

JDK Container

docker run -it --rm --net=host \
  -v $PWD/demo-app:/src/app \
  -w /src/app \
  openjdk:11-jdk bash

Build With Maven Jib

./mvnw --batch-mode package \
  com.google.cloud.tools:jib-maven-plugin:3.2.1:build \
  -Dmaven.repo.local=$PWD/build_cache/maven \
  -Djib.from.image=openjdk:11-jre \
  -Djib.from.platforms=linux/amd64,linux/arm64 \
  -Djib.allowInsecureRegistries=true \
  -Djib.to.tags=maven-build,latest \
  -Djib.to.image=127.0.0.1:5000/demo-app:v1

Build With Gradle Jib

cat <<'EOF'> init.gradle
initscript {
    repositories {
        maven {
            url 'https://plugins.gradle.org/m2'
        }
    }
    dependencies {
        classpath 'gradle.plugin.com.google.cloud.tools:jib-gradle-plugin:3.2.1'
    }
}
rootProject {
    afterEvaluate {
        if (!project.plugins.hasPlugin('com.google.cloud.tools.jib')) {
            project.apply plugin: com.google.cloud.tools.jib.gradle.JibPlugin
            tasks.jib.dependsOn classes
        }
    }
}
EOF

export GRADLE_USER_HOME=$PWD/build_cache/gradle
./gradlew --info --console=plain --init-script init.gradle jib \
  -Djib.from.image=openjdk:11-jre \
  -Djib.from.platforms=linux/amd64,linux/arm64 \
  -Djib.allowInsecureRegistries=true \
  -Djib.to.tags=gradle-build,latest \
  -Djib.to.image=127.0.0.1:5000/demo-app:v1

Image Pull with Docker

docker pull --platform arm64 127.0.0.1:5000/demo-app:v1

docker pull --platform amd64 127.0.0.1:5000/demo-app:v1

Inspect Registry with Skopeo

skopeo inspect --tls-verify=false --raw \
  docker://127.0.0.1:5000/my-docker-image:v1 | jq .

skopeo inspect --tls-verify=false \
  docker://127.0.0.1:5000/demo-app:v1 | jq .RepoTags

Copy Image from Registry to OCI Format with Skopeo

skopeo copy --all --src-tls-verify=false \
  docker://127.0.0.1:5000/demo-app:v1 oci-archive:my-oci-image.tar

Inspect OCI Image Tar with Skopeo

skopeo inspect --raw oci-archive:my-oci-image.tar | \
  jq -r '.manifests[].platform.architecture'

skopeo inspect oci-archive:my-oci-image.tar --override-arch=amd64

skopeo inspect oci-archive:my-oci-image.tar --override-arch=arm64

Copy Image from OCI Format to Docker Format with Skopeo

skopeo copy --override-arch=amd64 --src-tls-verify=false \
  docker://127.0.0.1:5000/demo-app:v1 \
  docker-archive:my-docker-image-amd64.tar

skopeo inspect docker-archive:my-docker-image-amd64.tar

skopeo copy --override-arch=arm64 --src-tls-verify=false \
  docker://127.0.0.1:5000/demo-app:v1 \
  docker-archive:my-docker-image-arm64.tar

skopeo inspect docker-archive:my-docker-image-arm64.tar

Load Image from Tar

docker load -i my-docker-image-amd64.tar | \
  awk '{print $NF}' | \
  xargs -i docker tag {} my-docker-image

docker run -it --rm my-docker-image