Some scripts related with Agents and Shared Agents (#39)

Scripts for :
create an script to create Agents from a Jenkins instance
disable agents on a Jenkins instance
delete agents on a Jenkins instance

Author: kuisathaverat

createAgentsScript.groovy

@@ -0,0 +1,56 @@
+ import jenkins.model.Jenkins
+ import hudson.slaves.*
+ import hudson.plugins.sshslaves.*
+
+ def createLauncher(agentLauncher){
+     if(agentLauncher.class.name ==  'hudson.plugins.sshslaves.SSHLauncher'){
+         return "new hudson.plugins.sshslaves.SSHLauncher('${agentLauncher.host}',${agentLauncher.port},'${agentLauncher.credentialsId}','${agentLauncher?.jvmOptions}','${agentLauncher?.javaPath}','${agentLauncher?.prefixStartSlaveCmd}','${agentLauncher?.suffixStartSlaveCmd}',${agentLauncher?.launchTimeoutSeconds},${agentLauncher?.maxNumRetries},${agentLauncher?.retryWaitTime})"         
+     } else if(agentLauncher.class.name == 'com.cloudbees.jenkins.plugins.sshslaves.SSHLauncher'){
+         return "new com.cloudbees.jenkins.plugins.sshslaves.SSHLauncher('${agentLauncher.host}',new com.cloudbees.jenkins.plugins.sshslaves.SSHConnectionDetails('${agentLauncher.connectionDetails.credentialsId}',${agentLauncher.connectionDetails.port},'${agentLauncher.connectionDetails?.javaPath}','${agentLauncher.connectionDetails?.jvmOptions}','${agentLauncher.connectionDetails?.prefixStartSlaveCmd}','${agentLauncher.connectionDetails?.suffixStartSlaveCmd}',${agentLauncher.connectionDetails?.displayEnvironment}))"
+     } else if (agentLauncher.class.name == 'hudson.slaves.JNLPLauncher' ||agentLauncher.class.name == 'com.cloudbees.opscenter.server.jnlp.slave.JocJnlpSlaveLauncher'){
+         def tunnel = agentLauncher?.tunnel == null ? "" : agentLauncher?.tunnel
+         def vmargs = agentLauncher?.vmargs == null ? "" : agentLauncher?.vmargs
+         return "new hudson.slaves.JNLPLauncher('${tunnel}','${vmargs}')"
+     }
+     
+     return "NOT SUPPORTED - " + agentLauncher.getClass().getCanonicalName() + " - NOT SUPPORTED"
+ } 
+
+ def createAgent(agentName, agentDescription, agentHome, agentExecutors, agentLabels, launcher) {
+     println "//Create Agent ${agentName}"
+     //DumbSlave(String name, String nodeDescription, String remoteFS, String numExecutors, Node.Mode mode, String labelString, ComputerLauncher launcher, RetentionStrategy retentionStrategy)
+     println "Jenkins.instance.addNode(new DumbSlave('${agentName}',  '${agentDescription}', '${agentHome}', '${agentExecutors}', Mode.NORMAL, '${agentLabels}', ${launcher}, new RetentionStrategy.Always()))"
+ }
+
+
+println '''
+import jenkins.model.*
+import hudson.model.*
+import hudson.slaves.*
+import hudson.plugins.sshslaves.*
+import com.cloudbees.opscenter.server.model.*
+import hudson.model.Node.Mode
+'''
+
+ // Jenkins Master and slaves
+ Jenkins.instance.computers.grep {
+    it.class.superclass?.simpleName != 'AbstractCloudComputer' &&
+    it.class.superclass?.simpleName != 'AbstractCloudSlave' &&
+    it.class.simpleName != 'EC2AbstractSlave'
+ }.each {
+     if (!(it instanceof jenkins.model.Jenkins.MasterComputer)) {
+         createAgent(it.name, it.displayName, it.getNode().getRemoteFS(), it.numExecutors, it.getNode().getLabelString(), createLauncher(it.getLauncher()))
+     }
+ }
+
+ // CJOC Shared Slaves
+ Jenkins.instance.allItems.grep {
+     it.class.name == 'com.cloudbees.opscenter.server.model.SharedSlave'
+ }.each {
+     createAgent(it.name, it.displayName, it.getRemoteFS(), it.numExecutors, it.getLabelString(), createLauncher(it.getLauncher()))
+ }
+
+println '''
+//END_OF_SCRIPT
+
+'''

deleteAgents.groovy

@@ -0,0 +1,57 @@
+import java.util.*
+import jenkins.model.*
+import hudson.model.*
+import hudson.slaves.*
+import static com.cloudbees.opscenter.server.persistence.SlaveLeaseTable.getLeases;
+
+// Set this to false once you run the script and checked the output
+dryRun = true
+
+def goDelete(aSlave) {
+    println "Agent: " + aSlave.name
+    def online = false
+    def busy = false
+    if (!(aSlave instanceof com.cloudbees.opscenter.server.model.SharedSlave)) {
+        online = aSlave.isOnline()
+        busy = aSlave.countBusy() != 0
+    } else {
+        online = aSlave.getOfflineCause() == null
+        def leases = getLeases(aSlave.getUid())
+        busy = leases != null && !leases.isEmpty()
+    }
+    println('\tcomputer.isOnline: ' + online)
+    println('\tcomputer.countBusy: ' + busy)
+    if (!busy && !online && !dryRun) {
+        if (aSlave instanceof com.cloudbees.opscenter.server.model.SharedSlave) {
+            aSlave.doDoDelete()
+        } else {
+            aSlave.delete()
+        }
+        println('\tIs Deleted')
+    } else if(dryRun) {
+        println "SIMULATION MODE: Not Delete ${aSlave.name}, set dryRun variable to false if you wish to run it for real"
+    } else {
+        println('\tIs NOT Deleted')
+    }
+
+    println('\tIs now offline :' + !online)
+
+}
+
+// Jenkins Master and slaves
+Jenkins.instance.computers.grep {
+    it.class.superclass?.simpleName != 'AbstractCloudComputer' &&
+        it.class.superclass?.simpleName != 'AbstractCloudSlave' &&
+        it.class.simpleName != 'EC2AbstractSlave'
+}.each {
+    if (!(it instanceof jenkins.model.Jenkins.MasterComputer)) {
+        goDelete(it)
+    }
+}
+
+// CJOC Shared Slaves
+Jenkins.instance.allItems.grep {
+    it.class.name == 'com.cloudbees.opscenter.server.model.SharedSlave'
+}.each {
+    goDelete(it)
+}

disableAgents.groovy

@@ -0,0 +1,56 @@
+import java.util.*
+import jenkins.model.*
+import hudson.model.*
+import hudson.slaves.*
+import static com.cloudbees.opscenter.server.persistence.SlaveLeaseTable.getLeases;
+
+// Set this to false once you run the script and checked the output
+dryRun = true
+
+def goOffline(aSlave) {
+    println "Agent: " + aSlave.name
+    def online = false
+    def busy = false
+    if (!(aSlave instanceof com.cloudbees.opscenter.server.model.SharedSlave)) {
+        online = aSlave.isOnline()
+        busy = aSlave.countBusy() != 0
+    } else {
+        online = aSlave.getOfflineCause() == null
+        def leases = getLeases(aSlave.getUid())
+        busy = leases != null && !leases.isEmpty()
+    }
+    println('\tcomputer.isOnline: ' + online)
+    println('\tcomputer.countBusy: ' + busy)
+    if (!busy && online && !dryRun) {
+        if (aSlave instanceof com.cloudbees.opscenter.server.model.SharedSlave) {
+            aSlave.setDisabled(true)
+            online = aSlave.getOfflineCause() == null
+        } else {
+            aSlave.doDoDisconnect("Setted offline by script")
+            online = aSlave.isOnline()
+        }
+    } else if(dryRun) {
+        println "SIMULATION MODE: Not disconnecting ${aSlave.name}, set dryRun variable to false if you wish to run it for real"
+    }
+
+    println('\tIs now offline :' + !online)
+
+}
+
+// Jenkins Master and slaves
+Jenkins.instance.computers.grep {
+    it.class.superclass?.simpleName != 'AbstractCloudComputer' &&
+        it.class.superclass?.simpleName != 'AbstractCloudSlave' &&
+        it.class.simpleName != 'EC2AbstractSlave'
+}.each {
+    if (!(it instanceof jenkins.model.Jenkins.MasterComputer)) {
+        goOffline(it)
+    }
+}
+
+// CJOC Shared Slaves
+Jenkins.instance.allItems.grep {
+    it.class.name == 'com.cloudbees.opscenter.server.model.SharedSlave'
+}.each {
+    goOffline(it)
+}