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Docker Publish Gradle Plugin

A Gradle plugin to build and publish a docker image to docker hub. The plugin was created to centralise code in our spring-boot microservices. Therefore some of the default values are related to the spring-boot-plugin.

Usage

The plugin is available on the official Gradle plugin portal. You need to apply it to the subprojects you want to publish to docker hub.

plugins {
  id("de.europace.docker-publish") version "..."
}

dockerPublish{
    organisation.set("my-dockerhub-organisation")
}

Defaults

The publishImage task is configured to run after Gradle's publish task, so this plugin implicitly applies the maven-publish plugin.
Authentication to the default registry (Docker Hub) is enabled by default.

Configuration

The configuration of the plugin is done in a block called dockerPublish

Name	Description	Default Value
organisation	the namespace/organisation of the target docker repository	mandatory
imageName	the name of your docker repository	project.name
imageTag	the tag of your docker image	project.version
artifactTaskName	the name of the task the docker image depends on	"bootJar"
dockerBuildContextSources	The location (folder) of your docker file	"${project.projectDir.path}/src/main/docker"

Contributing

Please submit issues if you have any questions or suggestions regarding this plugin. Code changes like bug fixes or new features can be proposed as pull requests.

Releasing

There are a few steps to release a plugin version:

create a pull request and merge it --> The draft-release.yml will draft a release for you or add the pull request to an already existing draft release
Choose version, keep the pattern of the semantig versioning in mind. Adapt tag appropriately (eg. v1.0.0)
Once you click on "publish release" a publish-release.yml will create an artifact using the tag as version (eg. v1.0.0-> 1.0.0) and will publish it to the Gradle plugin portal.