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Java client, built on top of jclouds, for working with Jenkins REST API

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jenkins-rest

Java client is built on the top of jclouds for working with Jenkins REST API.

Setup

Client's can be built like so:

JenkinsClient client = JenkinsClient.builder()
.endPoint("http://127.0.0.1:8080") // Optional. Defaults to http://127.0.0.1:8080
.credentials("admin:password") // Optional.
.build();

SystemInfo systemInfo = client.api().systemApi().systemInfo();
assertTrue(systemInfo.jenkinsVersion().equals("1.642.4"));

Latest release

Can be found in maven like so:

<dependency>
  <groupId>io.github.cdancy</groupId>
  <artifactId>jenkins-rest</artifactId>
  <version>X.Y.Z</version>
  <classifier>sources|tests|javadoc|all</classifier> (Optional)
</dependency>

Documentation

Property based setup

Client instances do NOT need to supply the endPoint or credentials as a part of instantiating the JenkinsClient object. Instead one can supply them through system properties, environment variables, or a combination of the two. System properties will be searched first and if not found, will attempt to query the environment.

Setting the endpoint can be done with any of the following (searched in order):

  • jenkins.rest.endpoint
  • jenkinsRestEndpoint
  • JENKINS_REST_ENDPOINT

When none is found, the endpoint is set to http://localhost:8080.

Setting the credentials can be done with any of the following (searched in order):

  • jenkins.rest.api.token
  • jenkinsRestApiToken
  • JENKINS_REST_API_TOKEN
  • jenkins.rest.credentials
  • jenkinsRestCredentials
  • JENKINS_REST_CREDENTIALS

When none is found, no authentication is used (anonymous).

Credentials

jenkins-rest credentials can take 1 of 3 forms:

  • Colon delimited username and api token: admin:apiToken
    • use JenkinsClient.builder().apiToken("admin:apiToken")
  • Colon delimited username and password: admin:password
    • use JenkinsClient.builder().credentials("admin:password")
  • Base64 encoded username followed by password YWRtaW46cGFzc3dvcmQ= or api token YWRtaW46YXBpVG9rZW4=
    • use JenkinsClient.builder().credentials("YWRtaW46cGFzc3dvcmQ=")
    • use JenkinsClient.builder().apiToken("YWRtaW46YXBpVG9rZW4=")

The Jenkins crumb is automatically requested when POSTing using the anonymous and the username:password authentication methods. It is not requested when you use the apiToken as it is not needed in this case. For more details, see

Examples

The mock and live tests provide many examples that you can use in your own code.

Components

  • jclouds - used as the backend for communicating with Jenkins REST API
  • AutoValue - used to create immutable value types both to and from the jenkins program

Testing

Running mock tests can be done like so:

./gradlew clean build mockTest

Running integration tests require an existing jenkins instance which can be obtained with docker:

    docker build -t jenkins-rest/jenkins src/main/docker
    docker run -d --rm -p 8080:8080 --name jenkins-rest jenkins-rest/jenkins
./gradlew clean build integTest 

Integration tests settings

If you use the provided docker instance, there is no other preparation necessary. If you wish to run integration tests against your own Jenkins server, the requirements are outlined in the next section.

Jenkins instance requirements

This project provides instructions to setup a pre-configured Docker container

Integration tests configuration

  • jenkins url and authentication method used by the tests are defined in the gradle.properties file
  • by default, tests use the credentials (username:password) authentication method but this can be changed to use the API Token. See the gradle.properties file.

Running integration tests from within your IDE

  • the integTest gradle task sets various System Properties
  • if you don't want to use gradle as tests runner in your IDE, configure the tests with the same kind of System Properties

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