From c6cabe44ebb29ddfb7f9f213643ee24663459028 Mon Sep 17 00:00:00 2001
From: Manuele Simi <manuele.simi@isti.cnr.it>
Date: Fri, 16 Aug 2019 23:24:48 -0400
Subject: [PATCH] Add some useful and tested examples of dynamic pipelines.

---
 examples/dynamic_parallel_nested | 33 +++++++++++++++++++++
 examples/dynamyc_sequential      | 28 ++++++++++++++++++
 examples/parallel_nested         | 51 ++++++++++++++++++++++++++++++++
 3 files changed, 112 insertions(+)
 create mode 100644 examples/dynamic_parallel_nested
 create mode 100644 examples/dynamyc_sequential
 create mode 100644 examples/parallel_nested

diff --git a/examples/dynamic_parallel_nested b/examples/dynamic_parallel_nested
new file mode 100644
index 0000000..1ee5609
--- /dev/null
+++ b/examples/dynamic_parallel_nested
@@ -0,0 +1,33 @@
+def apps = "job1,job2,job3,job4"
+def applications = apps.split(",").findAll { it }.collect { it.trim() }
+def environment  = env.ENVIRONMENT
+def version      = env.VERSION
+def jobs         = [:]
+
+if (applications.size() < 1) {
+    error("ERROR: APPLICATIONS must be a comma-delimited list of applications to build")
+}
+
+for (int i = 0; i < applications.size(); i++) {
+    def app = applications[i]
+    jobs["jobs-${app}"] = {
+        node {
+            stage("Build ${app}") {
+                build "${app}"
+            }
+        }
+    }
+}
+
+pipeline {
+    agent none
+    stages {
+        stage('Build apps(s)') {
+            steps {
+                script {
+                    parallel jobs
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/examples/dynamyc_sequential b/examples/dynamyc_sequential
new file mode 100644
index 0000000..87f19de
--- /dev/null
+++ b/examples/dynamyc_sequential
@@ -0,0 +1,28 @@
+def list
+pipeline {
+  agent {
+        label 'pipeline-agent'
+  }
+
+    stages {
+        stage('Create Job List') {
+            steps {
+                script {
+                    // you may create your list here, lets say reading from a file after checkout
+                    list = ["Test-1", "Test-2", "Test-3", "Test-4", "Test-5"]
+                }
+            }
+        }
+        stage('Dynamic Stages') {
+            steps {
+                script {
+                    for(int i=0; i < list.size(); i++) {
+                        stage(list[i]){
+                            echo "Element: $i"
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/examples/parallel_nested b/examples/parallel_nested
new file mode 100644
index 0000000..690b650
--- /dev/null
+++ b/examples/parallel_nested
@@ -0,0 +1,51 @@
+pipeline {
+    agent any
+    stages {
+        stage('Non-Parallel Stage') {
+            steps {
+                echo 'This stage will be executed first.'
+            }
+        }
+        stage('Parallel Stage') {
+            when {
+                branch 'master'
+            }
+            failFast true
+            parallel {
+                stage('Branch A') {
+                    agent {
+                        label "for-branch-a"
+                    }
+                    steps {
+                        echo "On Branch A"
+                    }
+                }
+                stage('Branch B') {
+                    agent {
+                        label "for-branch-b"
+                    }
+                    steps {
+                        echo "On Branch B"
+                    }
+                }
+                stage('Branch C') {
+                    agent {
+                        label "for-branch-c"
+                    }
+                    stages {
+                        stage('Nested 1') {
+                            steps {
+                                echo "In stage Nested 1 within Branch C"
+                            }
+                        }
+                        stage('Nested 2') {
+                            steps {
+                                echo "In stage Nested 2 within Branch C"
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file