docker-java

Java API client for Docker

Supports a subset of the Docker Client API v1.15, Docker Server version 1.3.0

The current implementation is based on Jersey 2.x and therefore classpath incompatible with older Jersey 1.x dependent libraries!

Developer forum for docker-java

Build with Maven

Prerequisites:

• Java 1.6
• Maven 3.0.5
• Docker daemon running

The Maven build includes integration tests which are using a localhost instance of Docker and require manual setup. Make sure you have a local Docker daemon running and then provide your https://registry.hub.docker.com/account/login/ information via system properties:

$ mvn clean install -Ddocker.io.username=... -Ddocker.io.password=... -Ddocker.io.email=...

If your Docker server is remote, add its URL like this: -Ddocker.io.url=https://...:2376.

If you do not have access to a Docker server or just want to execute the build quickly, you can run the build without the integration tests:

$ mvn clean install -DskipITs

By default Docker server is using UNIX sockets for communication with the Docker client, however docker-java client uses TCP/IP to connect to the Docker server, so you will need to make sure that your Docker server is listening on TCP port. To allow Docker server to use TCP add the following line to /etc/default/docker

DOCKER_OPTS="-H tcp://127.0.0.1:2375 -H unix:///var/run/docker.sock"

More details setting up Docker server can be found in official documentation: http://docs.docker.io/en/latest/use/basics/

Now make sure that docker is up:

$ docker -H tcp://127.0.0.1:2375 version

Client version: 0.8.0
Go version (client): go1.2
Git commit (client): cc3a8c8
Server version: 1.2.0
Git commit (server): fa7b24f
Go version (server): go1.3.1

Run build without integration tests:

$ mvn clean install -DskipITs

Docker-Java maven dependencies

Latest release version

<dependency>
      <groupId>com.github.docker-java</groupId>
      <artifactId>docker-java</artifactId>
      <version>0.10.2</version>
</dependency>

Latest SNAPSHOT version

<dependency>
      <groupId>com.github.docker-java</groupId>
      <artifactId>docker-java</artifactId>
      <version>0.10.3-SNAPSHOT</version>
</dependency>

Latest SNAPSHOT is published to maven repo: https://oss.sonatype.org/content/groups/public via

Documentation

For code examples, please look at the Wiki or Test cases

Configuration

There are a couple of configuration items, all of which have sensible defaults:

• url The Docker URL, e.g. https://localhost:2376.
• version The API version, e.g. 1.15.
• username Your repository username (required to push containers).
• password Your repository password.
• email Your repository email.
• dockerCertPath Path to the docker certs.

There are three ways to configure, in descending order of precedence:

Programmatic:

In your application, e.g.

DockerClientConfig config = DockerClientConfig.createDefaultConfigBuilder()
    .withVersion("1.15")
    .withUri("https://my-docker-host.tld:2376")
    .withUsername("dockeruser")
    .withPassword("ilovedocker")
    .withEmail("[email protected]")
    .withDockerCertPath("/home/user/.docker")
    .build();
DockerClient docker = DockerClientBuilder.getInstance(config).build();

Properties

docker.io.url=https://localhost:2376
docker.io.version=1.15
docker.io.username=dockeruser
docker.io.password=ilovedocker
[email protected]
docker.io.dockerCertPath=/home/user/.docker

System Properties:

java -Ddocker.io.username=dockeruser pkg.Main

System Environment

export DOCKER_URL=http://localhost:2376

Note: we also auto-detect defaults. If you use DOCKER_HOST we use that value, and if DOCKER_CERT_PATH is set, we switch to SSL.

File System

In $HOME/.docker.io.properties

Class Path

In the class path at /docker.io.properties