JENKINS-45738 Added example of declarative pipeline using task steps …

…with closures

examples/JENKINS-45738-declarative-pipeline-with-task-closures.txt

@@ -0,0 +1,54 @@
+pipeline {
+    agent any
+    options {
+        ansiColor('xterm')
+        buildDiscarder(logRotator(numToKeepStr: '20'))
+        timeout(time: 30, unit: 'MINUTES')
+        timestamps()
+    }
+    stages {
+        stage('Commit stage') {
+            steps {
+                task('Compile and package') {
+                    echo 'Building...'
+                    sleep 2
+                    echo 'Successfully built project!'
+                }
+
+                task('Upload artifacts') {
+                    sleep 3
+                    echo 'Successfully uploaded artifacts!'
+                }
+            }
+        }
+        stage('Test stage') {
+            steps {
+                task('Run component tests') {
+                    echo 'Running tests...'
+                    sleep 4
+                    echo 'Component tests finished!'
+                }
+
+                task('Run integration tests') {
+                    sleep 5
+                    echo 'Integration tests finished
+                }
+            }
+        }
+        stage('Deploy') {
+            steps {
+                task('Deploy to UAT') {
+                    echo 'Deploying to UAT...'
+                    sleep 4
+                    echo 'Successfully deployed to UAT'
+                }
+
+                task('Deploy to production') {
+                    echo 'Deploying to production...'
+                    sleep 4
+                    echo 'Deployed to production!'
+                }
+            }
+        }
+    }
+}