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Automatically configure the docker cloud in Jenkins (/var/lib/jenkins/init.groovy.d/jenkins-docker-slaves.groovy).
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#!groovy | |
/* | |
Automatically configure the docker cloud in Jenkins. | |
Tested with: | |
- {name: 'docker-plugin', ver: '0.16.0'} | |
*/ | |
import jenkins.model.*; | |
import hudson.model.*; | |
import com.nirima.jenkins.plugins.docker.DockerCloud | |
import com.nirima.jenkins.plugins.docker.DockerTemplate | |
import com.nirima.jenkins.plugins.docker.DockerTemplateBase | |
import com.nirima.jenkins.plugins.docker.launcher.DockerComputerSSHLauncher | |
import hudson.plugins.sshslaves.SSHConnector | |
import com.cloudbees.plugins.credentials.* | |
import com.cloudbees.plugins.credentials.common.* | |
import com.cloudbees.plugins.credentials.domains.* | |
import com.cloudbees.plugins.credentials.impl.* | |
def instance = Jenkins.getInstance() | |
if ( instance.pluginManager.activePlugins.find { it.shortName == "credentials" } != null ) { | |
def domain = Domain.global() | |
def store = instance.getExtensionList('com.cloudbees.plugins.credentials.SystemCredentialsProvider')[0].getStore() | |
// https://github.com/jenkinsci/credentials-plugin/blob/3a9ce5254749da296a76f55e3dfdae3d496b695a/src/main/java/com/cloudbees/plugins/credentials/impl/UsernamePasswordCredentialsImpl.java#L68 | |
slaveUsernameAndPassword = new UsernamePasswordCredentialsImpl( | |
CredentialsScope.GLOBAL, | |
"docker-slave", | |
"Jenkins Slave with Password Configuration", | |
"jenkins", | |
"jenkins" | |
) | |
println '--> adding credentials for ssh slaves' | |
store.addCredentials(domain, slaveUsernameAndPassword) | |
} else { | |
println "--> no credentials plugin installed" | |
} | |
if ( instance.pluginManager.activePlugins.find { it.shortName == "docker-plugin" } != null ) { | |
// https://github.com/jenkinsci/docker-plugin/blob/docker-plugin-parent-0.16.0/docker-plugin/src/main/java/com/nirima/jenkins/plugins/docker/DockerTemplateBase.java#L103 | |
DockerTemplateBase templateBase = new DockerTemplateBase( | |
"", | |
"", | |
"", | |
"""/var/run/docker.sock:/var/run/docker.sock""", | |
"", | |
"", | |
"", | |
"", | |
2048, | |
0, | |
1024, | |
"", | |
false, | |
false, | |
false, | |
'' | |
); | |
// https://github.com/jenkinsci/ssh-slaves-plugin/blob/ssh-slaves-1.11/src/main/java/hudson/plugins/sshslaves/SSHConnector.java#L178 | |
SSHConnector sshConnector = new SSHConnector(22, | |
"docker-slave", | |
"", | |
"", | |
"", | |
"", | |
0, | |
0, | |
0 | |
); | |
// https://github.com/jenkinsci/docker-plugin/blob/docker-plugin-parent-0.16.0/docker-plugin/src/main/java/com/nirima/jenkins/plugins/docker/launcher/DockerComputerSSHLauncher.java#L43 | |
DockerComputerSSHLauncher dkSSHLauncher = new DockerComputerSSHLauncher(sshConnector); | |
// https://github.com/jenkinsci/docker-plugin/blob/docker-plugin-parent-0.16.0/docker-plugin/src/main/java/com/nirima/jenkins/plugins/docker/DockerTemplate.java#L71 | |
DockerTemplate dkTemplate = new DockerTemplate( | |
templateBase, | |
"docker", | |
"", | |
"", | |
"" | |
) | |
dkTemplate.setLauncher(dkSSHLauncher); | |
ArrayList<DockerTemplate> dkTemplates = new ArrayList<DockerTemplate>(); | |
dkTemplates.add(dkTemplate); | |
ArrayList<DockerCloud> dkCloud = new ArrayList<DockerCloud>(); | |
dkCloud.add( | |
// https://github.com/jenkinsci/docker-plugin/blob/docker-plugin-parent-0.16.0/docker-plugin/src/main/java/com/nirima/jenkins/plugins/docker/DockerCloud.java#L122 | |
new DockerCloud( | |
"dk", | |
dkTemplates, | |
"unix:///var/run/docker.sock", | |
"", | |
5, | |
5, | |
"", | |
"" | |
) | |
); | |
println '--> Configuring docker cloud' | |
// Took me aaaaages to work out how to add/replace a 'cloud' in Jenkins settings | |
// https://github.com/jenkinsci/jenkins/blob/9fce1ee933eb5276baff977d562fc8e183f1c8d6/core/src/main/java/jenkins/model/Jenkins.java#L485 | |
// https://github.com/jenkinsci/jenkins/blob/9fce1ee933eb5276baff977d562fc8e183f1c8d6/core/src/main/java/hudson/model/Hudson.java#L336 | |
// https://github.com/jenkinsci/jenkins/blob/9fce1ee933eb5276baff977d562fc8e183f1c8d6/core/src/main/java/jenkins/model/Jenkins.java#L487 | |
// https://github.com/jenkinsci/jenkins/blob/9fce1ee933eb5276baff977d562fc8e183f1c8d6/core/src/main/java/hudson/util/DescribableList.java#L66 | |
// https://github.com/jenkinsci/jenkins/blob/9fce1ee933eb5276baff977d562fc8e183f1c8d6/core/src/main/java/hudson/util/PersistedList.java#L83 | |
instance.clouds.replaceBy(dkCloud) | |
} else { | |
println "--> no 'docker-plugin' plugin installed" | |
} |
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Simplified version adapted for plugin version 1.1.2: https://gist.github.com/adrianlzt/d092b5852600b19c08d2d704c8633e09