I try to install EC2 instance, with pre-installed Jenkins, using the following Packer configuration:
The most important part here is setup.sh script, which installs Jenkins and Java:
#!/bin/bash
echo "Installing Amazon Linux extras"
amazon-linux-extras install epel -y
echo "Install Jenkins stable release"
yum remove -y java
yum install -y java-11-openjdk-devel
wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat-stable/jenkins.repo
rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key
yum install -y jenkins
chkconfig jenkins on
echo "Install git"
yum install -y git
echo "Setup SSH key"
mkdir /var/lib/jenkins/.ssh
touch /var/lib/jenkins/.ssh/known_hosts
chown -R jenkins:jenkins /var/lib/jenkins/.ssh
chmod 700 /var/lib/jenkins/.ssh
mv /tmp/id_rsa /var/lib/jenkins/.ssh/id_rsa
chmod 600 /var/lib/jenkins/.ssh/id_rsa
chown -R jenkins:jenkins /var/lib/jenkins/.ssh/id_rsa
echo "Configure Jenkins"
mkdir -p /var/lib/jenkins/init.groovy.d
mv /tmp/scripts/*.groovy /var/lib/jenkins/init.groovy.d/
chown -R jenkins:jenkins /var/lib/jenkins/init.groovy.d
mv /tmp/config/jenkins /etc/sysconfig/jenkins
chmod +x /tmp/config/install-plugins.sh
bash /tmp/config/install-plugins.sh
service jenkins start
See all other configuration files by this link:
https://github.com/mlabouardy/pipeline-as-code-with-jenkins/tree/master/chapter4/distributed/master
When I run:
packer build template.json
I get the following exception:
==> amazon-ebs: Job for jenkins.service failed because the control process exited with error code. See "systemctl status jenkins.service" and "journalctl -xe" for details.
Everything works perfectly, If I use:
yum install -y java-1.8.0-openjdk
instead of:
yum install -y java-11-openjdk-devel
I'm able to start Jenkins, but I see the following warning:
Using Java 8 with the latest Jenkins is not recommended
Does anyone know how to make this configuration work with Java 11 ?
P.S. As a Source Amazon Machine Image for Packer I use:
Amazon Linux 2 AMI (HVM), SSD Volume Type - ami-02e136e904f3da870 (64-bit x86) / ami-0e341fcaad89c3650 (64-bit Arm)
It is available in the "us-east-1" region ("source_ami" : "ami-02e136e904f3da870" - the exact id of Amazon Linux 2 AMI depends on the region)
Here is the Packer template.json, which is used for baking Jenkins Image from the Source Image:
{
"variables" : {
"region" : "us-east-1",
"aws_profile": "ops-account",
"source_ami" : "ami-02e136e904f3da870",
"instance_type": "t2.micro",
"ssh_key": "./jenkins_ssh"
},
"builders" : [
{
"type" : "amazon-ebs",
"profile" : "{{user `aws_profile`}}",
"region" : "{{user `region`}}",
"instance_type" : "{{user `instance_type`}}",
"source_ami" : "{{user `source_ami`}}",
"ssh_username" : "ec2-user",
"ami_name" : "jenkins-master-2.204.1",
"ami_description" : "Amazon Linux Image with Jenkins Server",
"run_tags" : {
"Name" : "packer-builder"
}
}
],
"provisioners" : [
{
"type" : "file",
"source" : "./scripts",
"destination" : "/tmp/"
},
{
"type" : "file",
"source" : "./config",
"destination" : "/tmp/"
},
{
"type" : "file",
"source" : "{{user `ssh_key`}}",
"destination" : "/tmp/id_rsa"
},
{
"type" : "shell",
"script" : "./setup.sh",
"execute_command" : "sudo -E -S sh '{{ .Path }}'"
}
]
}
