Jenkins controller AMI

2-jenkins.sh

#!/bin/bash

echo "Install jenkins"
sudo mv /usr/share/java/jenkins.war /usr/share/java/jenkins.war.old
sudo wget -q -O /usr/share/java/jenkins.war http://updates.jenkins-ci.org/download/war/$JENKINS_VERSION/jenkins.war
sudo systemctl stop jenkins
sudo systemctl enable jenkins
sudo systemctl start jenkins
echo "Jenkins version : $(sudo java -jar jenkins-cli.jar -s http://localhost:8080/ -auth admin:$(sudo cat /var/lib/jenkins/secrets/initialAdminPassword) version)"

ami.pkr.hcl

source "amazon-ebs" "jenkins_master_ami" {
  ami_description         = "Jenkins golden image ${local.creation_date}"
  ami_name                = "${var.ami_prefix}-${local.creation_date}"
  ami_regions             = ["us-west-2"]
  ami_virtualization_type = "hvm"
  skip_create_ami         = var.skip_create_ami
  instance_type           = "m6i.4xlarge"
  source_ami              = data.amazon-ami.base_ami.id
  run_tags = {
    Name = "Packer Builder #${var.pipeline_id}"
  }
  
  ssh_interface             = "private_ip"
  ssh_username              = "ec2-user"
  ssh_clear_authorized_keys = true
  tags = { 
    "Name"                    = "jenkins-controller"
    "Metadata"                = "JENKINS_VERSION=${var.jenkins_version}, JAVA_VERSION=${var.java_version}, PIPELINE_ID=${var.pipeline_id}"
  }
  assume_role {
    role_arn = var.role_arn
  }
}

build {
  sources = [
    "source.amazon-ebs.jenkins_master_ami"
  ]
  provisioner "shell" {
    environment_vars = [
      "JENKINS_VERSION=${var.jenkins_version}",
      "JAVA_VERSION=${var.java_version}"
      ...
    ]
    scripts = [
      "${path.root}/scripts/1-packages.sh",
      "${path.root}/scripts/2-jenkins.sh".
      ...
    ]
    max_retries = 3
  }
}

variables.pkrvars.hcl

java_version    = "17"
jenkins_version = "2.401.2"