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Docker Compose Maven Plugin

Quickstart

Available on Maven Central.

<dependency>
    <groupId>com.dkanejs.maven.plugins</groupId>
    <artifactId>docker-compose-maven-plugin</artifactId>
    <version>$VERSION</version>
</dependency>

About

Maven plugin for running basic docker-compose commands with Maven.

This can be used as part of the Maven lifecycle or as a utility to bring docker-compose commands to your Maven toolkit.

This plugin is designed to be light, fast and with minimum dependencies (only those required by Maven).

Usage

Goals

• up - runs docker-compose up
• down - runs docker-compose down
• build - runs docker-compose build
• push - runs docker-compose push
• pull - runs docker-compose pull
• stop - runs docker-compose stop
• restart - runs docker-compose restart

Properties

composeFile

composeFile - Location of the compose file e.g. ${project.basedir}/docker-compose.yml

The Plugin assumes your docker file is in ${project.basedir}/src/main/resources/docker-compose.yml

This can be changed in the configuration section of the plugin:

<configuration>
    <composeFile>${project.basedir}/docker-compose.yml</composeFile>
</configuration>

If the property composeFiles which allows multiple compose files is present then the value of this composeFile property is ignored.

composeFiles

composeFiles - Location of multiple compose files. If this property is present then the value of the composeFile is ignored.

This can be configured in the configuration section of the plugin:

<configuration>
    <composeFiles>
        <composeFile>${project.basedir}/docker-compose.yml</composeFile>
        <composeFile>${project.basedir}/docker-compose.override.yml</composeFile>
    </composeFiles>
</configuration>

envFile

envFile - Location of a file containing environment variables for docker-compose in key=value format, one pair per line.

This can be configured in the configuration section of the plugin:

<configuration>
    <envFile>${project.basedir}/.env</envFile>
</configuration>

envVars

envVars - Environment variables to be set when running docker-compose. Values set here override those set in a configured envFile.

This can be configured in the configuration section of the plugin:

<configuration>
    <envVars>
        <serviceName>${project.groupId}.${project.artifactId}</serviceName>
    </envVars>
</configuration>

This allows you to parameterize your docker-compose.yml:

version: '3.2'
services:
  service:
    image: busybox
    container_name: ${serviceName}-1

services

services - Names of services.

This property configures the plugin to only execute the commands on the services specified.

This can be configured in the configuration section of the plugin:

<configuration>
    <services>
        <service>service-1</composeFile>
        <service>service-2</composeFile>
    </services>
</configuration>

The following example will only start services: test-1 and test-2:

<configuration>
    <services>
        <service>test-1</composeFile>
        <service>test-2</composeFile>
    </services>
</configuration>

Against the following docker-compose file:

version: '3.2'
services:
  test-1:
    image: busybox
    container_name: container-1
  test-2:
    image: busybox
    container_name: container-2
  test-3:
    image: busybox
    container_name: container-3

Equivalent docker-compose command:

docker-compose up service-1 service-2

detachedMode

detachedMode - Run in detached mode

This adds -d to the up command.

The plugin will not run in detached mode by default.

This can be changed in the configuration section of the plugin:

<configuration>
    <detachedMode>true</detachedMode>
</configuration>

removeVolumes

removeVolumes - Delete volumes

This adds -v to the down command.

The plugin will not remove any volumes you create when using the down goal.

This can be changed in the configuration section of the plugin:

<configuration>
    <removeVolumes>true</removeVolumes>
</configuration>

apiVersion

apiVersion - Specify compose API version

<configuration>
   	<apiVersion>1.22</apiVersion>
</configuration>

verbose

verbose - Enable verbose output

<configuration>
   	<verbose>true</verbose>
</configuration>

skip

skip - Skip execution

<configuration>
   	<skip>true</skip>
</configuration>

projectName

projectName - Specify project name

<configuration>
    <projectName>customProjectName</projectName>
</configuration>

host

host - Specify host

<configuration>
    <host>unix:///var/run/docker.sock</host>
</configuration>

build

build - Build images before starting containers

This adds --build to the up command.

The plugin will not build images first by default.

This can be changed in the configuration section of the plugin:

<configuration>
    <build>true</build>
</configuration>

removeOrphans

removeOrphans - Remove containers for services not defined in the Compose file

This adds --remove-orphans to the down command.

The plugin will not remove orphans by default.

This can be changed in the configuration section of the plugin:

<configuration>
    <removeOrphans>true</removeOrphans>
</configuration>

removeImages

removeImages - Remove images when executing down

This adds --rmi to the down command.

The plugin will not remove images by default.

This can be changed in the configuration section of the plugin:

<configuration>
    <removeImages>true</removeImages>
</configuration>

Additional option removeImagesType allows to specify type parameter of --rmi docker compose flag. all is the default value. local is the second supported type.

<configuration>
    <removeImages>true</removeImages>
    <removeImagesType>local</removeImagesType>
</configuration>

ignorePullFailures

ignorePullFailures - Ignores failures when executing the pull goal

This adds --ignore-pull-failures to the pull command.

The plugin will not ignore pull failures by default.

This can be changed in the configuration section of the plugin:

<configuration>
    <ignorePullFailures>true</ignorePullFailures>
</configuration>

Environment variables

You can add env vars to your docker-compose call via

<configuration>
  ...
  <envVars>
    <jdkImageType>openjdk</jdkImageType>
    <dockerImageTag>0.1.1</dockerImageTag>
   </envVars>
   ...
</configuration>

This will add jdkImageType=openjdk and dockerImageTag=0.1.1 to the environment.

Build arguments

The build arguments for the build goal have there own section in the configuration.

<configuration>
  <buildArgs>
    ...
  </buildArgs>
</configuration>

forceRm

Adds --force-rm to the docker-compose build call.

<configuration>
  <buildArgs>
    ...
    <forceRm>true</forceRm>
    ...
  </buildArgs>
</configuration>

noCache

Adds --no-cache to the docker-compose build call.

<configuration>
  <buildArgs>
    ...
    <noCache>true</noCache>
    ...
  </buildArgs>
</configuration>

alwaysPull

Adds --pull to the docker-compose build call.

<configuration>
  <buildArgs>
    ...
    <alwaysPull>true</alwaysPull>
    ...
  </buildArgs>
</configuration>

args

Adds --build-arg to the docker-compose build call.

<configuration>
  <buildArgs>
    ...
     <args>
       <foo>bar</foo>
       <far>boor</far>
     </args>
    ...
  </buildArgs>
</configuration>

This will add --build-arg foo=bar and --build-arg far=boor to the docker-compose build call.

Configuration

Default

Below will allow use of the plugin from the mvn command line:

<build>
    <plugins>
        <plugin>
            <groupId>com.dkanejs.maven.plugins</groupId>
            <artifactId>docker-compose-maven-plugin</artifactId>
            <version>$VERSION</version>
        </plugin>
    </plugins>
</build>

This assumes the compose file is in the default location and will not run in any phase of the build.

Advanced

Below has customised the location of the docker-compose.yml file and has three executions defined:

<build>
    <plugins>
        <plugin>
            <groupId>com.dkanejs.maven.plugins</groupId>
            <artifactId>docker-compose-maven-plugin</artifactId>
            <version>$VERSION</version>
            <executions>
                <execution>
                    <id>pull</id>
                    <phase>verify</phase>
                    <goals>
                        <goal>pull</goal>
                    </goals>
                    <configuration>
                        <composeFile>${project.basedir}/docker-compose.yml</composeFile>
                        <ignorePullFailures>true</ignorePullFailures>
                    </configuration>
                </execution>
                <execution>
                    <id>up</id>
                    <phase>verify</phase>
                    <goals>
                        <goal>up</goal>
                    </goals>
                    <configuration>
                        <composeFile>${project.basedir}/docker-compose.yml</composeFile>
                        <detachedMode>true</detachedMode>
                    </configuration>
                </execution>
                <execution>
                    <id>down</id>
                    <phase>verify</phase>
                    <goals>
                        <goal>down</goal>
                    </goals>
                    <configuration>
                        <composeFile>${project.basedir}/docker-compose.yml</composeFile>
                        <removeVolumes>true</removeVolumes>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

This will run the following as part of the verify phase:

1. docker-compose pull --ignore-pull-failures using a docker-compose.yml file in a custom location
2. docker-compose up -d using a docker-compose.yml file in a custom location
3. docker-compose down -v using a docker-compose.yml file in a custom location