diff --git a/vars/capellaAddon.groovy b/vars/capellaAddon.groovy
new file mode 100644
index 0000000..440e9c3
--- /dev/null
+++ b/vars/capellaAddon.groovy
@@ -0,0 +1,95 @@
+def call(body) {
+
+    // Jenkinsfile:
+    // capellaAddon {
+    //   url = "git repo url"  // where the git clone comes from
+    //   name = "addon-name"   // name will be used for:
+    //                              * download folder name: download.eclipse.org/capella/addons/<name>/
+    //                              * dropins and site zip name
+    //
+    //   (optional) targetPlatform = <path-to-tp-pom>. Starts with capella-releng-parent/ or <name>/
+    //   (optional) versionFolder = <folder-name>. By default, artifacts go to <name>/updates/nightly/<branch>
+    //                               but we want to avoid using 'master' as a folder name, so in your master branch
+    //                               you can e.g. set this to 'v1.5.x' to copy artifacts to
+    //                               <name>/updates/nightly/v1.5.x/.
+    // }.
+
+    def pipelineParams= [targetPlatform: 'capella-releng-parent/tp/capella-default-addon-target/pom.xml',
+			 versionFolder: env.BRANCH_NAME
+    ]
+
+    body.resolveStrategy = Closure.DELEGATE_FIRST
+    body.delegate = pipelineParams
+    body()
+
+
+    pipeline {
+
+	// dont checkout into the root folder, we use 2 subfolders, one for the addon, one for the capella-releng-parent
+	options { skipDefaultCheckout() }
+
+	agent {
+	    label "migration"
+	}
+
+	tools {
+	    maven "apache-maven-latest"
+	    jdk "oracle-jdk8-latest"
+	}
+
+	stages {
+
+	    // TODO: For PR branches, the releng branch must be the branch
+	    // that is targeted by the PR, e.g. a PR for 1.3 should use the 1.3 releng branch
+	    stage ('Fail for pull requests'){
+		when { changeRequest() }
+		steps {
+		    error("Cannot build pull requests (yet)")
+		}
+	    }
+
+	    stage ('Checkout capella-releng-parent & addon code') {
+		steps {
+
+		    checkout([$class: 'GitSCM',
+			      branches: [[name: "*/${env.BRANCH_NAME}"]],
+			      doGenerateSubmoduleConfigurations: false,
+			      extensions: [[$class: 'RelativeTargetDirectory',
+					    relativeTargetDir: pipelineParams.name]],
+			      submoduleCfg: [], userRemoteConfigs: [[url: pipelineParams.url]]])
+
+
+		    checkout([$class: 'GitSCM',
+			      branches: [[name: "*/${env.BRANCH_NAME}"]],
+			      doGenerateSubmoduleConfigurations: false,
+			      extensions: [[$class: 'RelativeTargetDirectory',
+					    relativeTargetDir: 'capella-releng-parent']],
+			      submoduleCfg: [],
+			      userRemoteConfigs: [[url: 'https://github.com/eclipse/capella-releng-parent.git']]])
+		}
+	    }
+
+	    stage ('Generate Targetplatform'){
+		steps {
+		    sh "mvn --batch-mode --activate-profiles generate-target -f \"${pipelineParams.targetPlatform}\" clean install"
+		}
+	    }
+	    stage ('Build') {
+		steps {
+		    sh "mvn --batch-mode -DpackagedSiteName=\"${pipelineParams.name}\" -f \"${pipelineParams.name}/pom.xml\" clean verify"
+		}
+	    }
+
+
+	    stage ('Publish Nightly'){
+		steps {
+		    dir (pipelineParams.name) {
+			sshagent (['projects-storage.eclipse.org-bot-ssh']) {
+			    sh "../capella-releng-parent/scripts/deployAddonNightly.sh -n \"${pipelineParams.name}\" -b \"${pipelineParams.versionFolder}\""
+			}
+		    }
+		}
+	    }
+	}
+    }
+}