added Jenkinsfile

Jenkinsfile

@@ -0,0 +1,61 @@
+// REMEMBER TO FILL THE environment section with your values.
+// the following filed should be filled: imagename, git_url
+// REMEMBER to put your Dockerfile in the root folder of your project
+// The related jenkinsjob template is here: 
+
+
+pipeline {
+  agent {
+      label 'docker'
+  }
+  environment {
+    imagename = "external-services/ckan-legacy-269"
+    hubname = "harbor.d4science.org"
+    registryUrl = "https://harbor.d4science.org"
+    registryCredential = 'harbor-ckan-legacy'
+    dockerImage = ''
+    git_url='https://code-repo.d4science.org/D4Science/ckan-2-6-legacy.git'
+  }
+  stages {
+    stage('Building image') {
+      steps{
+        script {
+          dockerImage = docker.build imagename
+        }
+      }
+    }
+    stage('Deploy Image') {
+      steps{
+        script {
+          docker.withRegistry( registryUrl, registryCredential ) {
+            dockerImage.push("$BUILD_NUMBER")
+            dockerImage.push('latest')
+          }
+        }
+      }
+    }
+    stage('Remove Unused docker image') {
+      steps{
+        sh "docker rmi $hubname/$imagename:$BUILD_NUMBER"
+        sh "docker rmi $hubname/$imagename:latest"
+
+      }
+    }
+  }
+          // post-build actions
+    post {
+        success {
+            echo 'The docker pipeline worked!'
+            emailext to: 'jenkinsbuilds@d4science.org',
+                    subject: "[Jenkins CKAN legacy] build ${currentBuild.fullDisplayName} worked",
+                    body: "Build time: ${currentBuild.durationString}. See ${env.BUILD_URL}"
+        }
+        failure {
+            echo 'The docker pipeline has failed'
+            emailext attachLog: true,
+                    to: 'jenkinsbuilds@d4science.org',
+                    subject: "[FAILURE: Jenkins CKAN legacy] build ${currentBuild.fullDisplayName} failed for image  ${imagename}",
+                    body: "Something is wrong with ${env.BUILD_URL}"
+        }
+    }
+}