Micronaut 4.3.4 Documentation

• User Guide
• API Reference
• Configuration Reference
• Micronaut Guides

---

Push GraalVM Native Image To Docker Registry Workflow

Workflow file: .github/workflows/graalvm.yml

Workflow description

For pushes to the master branch, the workflow will:

1. Setup the build environment with respect to the selected java/graalvm version.
2. Login to docker registry based on provided configuration.
3. Build, tag and push Docker image with Micronaut application to the Docker container image.

Dependencies on other GitHub Actions

• Docker login(docker/login)
• Setup GraalVM(DeLaGuardo/setup-graalvm)

Setup

Add the following GitHub secrets:

Name	Description
DOCKER_USERNAME	Username for Docker registry authentication.
DOCKER_PASSWORD	Docker registry password.
DOCKER_REPOSITORY_PATH	Path to the docker image repository inside the registry, e.g. for the image foo/bar/micronaut:0.1 it is foo/bar.
DOCKER_REGISTRY_URL	Docker registry url.

Configuration examples

Specifics on how to configure public cloud docker registries like DockerHub, Google Container Registry (GCR), AWS Container Registry (ECR), Oracle Cloud Infrastructure Registry (OCIR) and many more can be found in docker/login-action documentation.

DockerHub

• DOCKER_USERNAME - DockerHub username
• DOCKER_PASSWORD - DockerHub password or personal access token
• DOCKER_REPOSITORY_PATH - DockerHub organization or the username in case of personal registry
• DOCKER_REGISTRY_URL - No need to configure for DockerHub

See docker/login-action for DockerHub

Google Container Registry (GCR)

Create service account with permission to edit GCR or use predefined Storage Admin role.

• DOCKER_USERNAME - set exactly to _json_key
• DOCKER_PASSWORD - content of the service account json key file
• DOCKER_REPOSITORY_PATH - <project-id>/foo
• DOCKER_REGISTRY_URL - gcr.io

See docker/login-action for GCR

AWS Elastic Container Registry (ECR)

Create IAM user with permission to push to ECR (or use AmazonEC2ContainerRegistryFullAccess role).

• DOCKER_USERNAME - access key ID
• DOCKER_PASSWORD - secret access key
• DOCKER_REPOSITORY_PATH - no need to set
• DOCKER_REGISTRY_URL - set to <aws-account-number>.dkr.ecr.<region>.amazonaws.com

See docker/login-action for ECR

Oracle Infrastructure Cloud Registry (OCIR)

Create auth token for authentication.

• DOCKER_USERNAME - username in format <tenancy>/<username>
• DOCKER_PASSWORD - account auth token
• DOCKER_REPOSITORY_PATH - <tenancy>/<registry>/foo
• DOCKER_REGISTRY_URL - set to <region>.ocir.io

See docker/login-action for OCIR

• Micronaut Maven Plugin documentation

Feature maven-enforcer-plugin documentation

• https://maven.apache.org/enforcer/maven-enforcer-plugin/

Feature flyway documentation

• Micronaut Flyway Database Migration documentation

• https://flywaydb.org/

Feature data-jdbc documentation

• Micronaut Data JDBC documentation

Feature rabbitmq documentation

• Micronaut RabbitMQ Messaging documentation

Feature github-workflow-graal-docker-registry documentation

• https://docs.github.com/en/free-pro-team@latest/actions

Feature serialization-jackson documentation

• Micronaut Serialization Jackson Core documentation

Feature testcontainers documentation

• https://www.testcontainers.org/

Feature jdbc-hikari documentation

• Micronaut Hikari JDBC Connection Pool documentation