Add optional step of preparing ansible server

Jenkinsfile

@@ -1,38 +1,40 @@
-def gv
-
 pipeline {
     agent any
+    environment {
+        ANSIBLE_SERVER = "167.99.136.157"
+    }
     stages {
-        stage("init") {
+        stage("copy files to ansible server") {
             steps {
                 script {
-                    gv = load "script.groovy"
+                    echo "copying all neccessary files to ansible control node"
+                    sshagent(['ansible-server-key']) {
+                        sh "scp -o StrictHostKeyChecking=no ansible/* root@${ANSIBLE_SERVER}:/root"
+
+                        withCredentials([sshUserPrivateKey(credentialsId: 'ec2-server-key', keyFileVariable: 'keyfile', usernameVariable: 'user')]) {
+                            sh 'scp $keyfile root@$ANSIBLE_SERVER:/root/ssh-key.pem'
                         }
                     }
                 }
-        stage("build jar") {
+            }
+        }
+        stage("execute ansible playbook") {
             steps {
                 script {
-                    echo "building jar"
+                    echo "calling ansible playbook to configure ec2 instances"
-                    //gv.buildJar()
+                    def remote = [:]
+                    remote.name = "ansible-server"
+                    remote.host = ANSIBLE_SERVER
+                    remote.allowAnyHosts = true
+
+                    withCredentials([sshUserPrivateKey(credentialsId: 'ansible-server-key', keyFileVariable: 'keyfile', usernameVariable: 'user')]){
+                        remote.user = user
+                        remote.identityFile = keyfile
+                        sshScript remote: remote, script: "prepare-ansible-server.sh"
+                        sshCommand remote: remote, command: "ansible-playbook my-playbook.yaml"
                     }
                 }
             }
-        stage("build image") {
-            steps {
-                script {
-                    echo "building image"
-                    //gv.buildImage()
-                }
-            }
-        }
-        stage("deploy") {
-            steps {
-                script {
-                    echo "deploying"
-                    //gv.deployApp()
-                }
-            }
         }
     }   
 }

ansible/ansible.cfg

@@ -0,0 +1,9 @@
+[defaults]
+host_key_checking = False
+inventory = inventory_aws_ec2.yaml
+
+interpreter_python = /usr/bin/python3
+enable_plugins = aws_ec2
+
+remote_user = ec2-user
+private_key_file = ~/ssh-key.pem

ansible/inventory_aws_ec2.yaml

@@ -0,0 +1,9 @@
+---
+plugin: aws_ec2
+regions: 
+  - eu-west-3
+keyed_groups:
+  - key: tags
+    prefix: tag
+  - key: instance_type
+    prefix: instance_type

ansible/my-playbook.yaml

@@ -0,0 +1,29 @@
+---
+- name: Install python3, docker, docker-compose
+  hosts: all
+  become: yes
+  gather_facts: False
+  tasks:
+    - name: Install python3 and docker
+      vars:
+        ansible_python_interpreter: /usr/bin/python
+      yum:
+        name:
+          - python3
+          - docker
+        update_cache: yes
+        state: present
+    - name: Install Docker-compose
+      get_url: 
+        url: https://github.com/docker/compose/releases/download/1.27.4/docker-compose-Linux-{{lookup('pipe', 'uname -m')}}
+        dest: /usr/local/bin/docker-compose
+        mode: +x
+    - name: Start docker daemon
+      systemd:
+        name: docker
+        state: started
+    - name: Install docker python module
+      pip:
+        name: 
+          - docker
+          - docker-compose

prepare-ansible-server.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+apt update
+apt install ansible -y
+apt install python3-pip -y
+pip3 install boto3 botocore