使用 Packer 在 Amazon EC2 Linux 2 AMI 上安装 Jenkins 和 JDK 11 失败答案

【问题标题】：Failed to install Jenkins with JDK 11 on Amazon EC2 Linux 2 AMI with Packer使用 Packer 在 Amazon EC2 Linux 2 AMI 上安装 Jenkins 和 JDK 11 失败
【发布时间】：2021-12-15 21:01:33
【问题描述】：

我尝试使用以下 Packer 配置安装 EC2 实例，预装 Jenkins：

这里最重要的部分是 setup.sh 脚本，它会安装 Jenkins 和 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

通过此链接查看所有其他配置文件：

https://github.com/mlabouardy/pipeline-as-code-with-jenkins/tree/master/chapter4/distributed/master

当我跑步时：

packer build template.json

我得到以下异常：

==> 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.

一切正常，如果我使用：

yum install -y java-1.8.0-openjdk

代替：

yum install -y java-11-openjdk-devel

我可以启动 Jenkins，但我看到以下警告：

Using Java 8 with the latest Jenkins is not recommended

有谁知道如何使这个配置与 Java 11 一起工作？

附注作为 Packer 的源 Amazon 系统映像，我使用：

Amazon Linux 2 AMI (HVM), SSD Volume Type - ami-02e136e904f3da870 (64-bit x86) / ami-0e341fcaad89c3650 (64-bit Arm)

它在“us-east-1”区域可用（“source_ami”：“ami-02e136e904f3da870” - 确切的Amazon Linux 2 AMI 的 ID 取决于地区）

这是 Packer template.json，用于从 Source Image 烘焙 Jenkins 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 }}'"
        }
    ]
}

【问题讨论】：

标签： jenkins amazon-ec2 amazon-ami packer openjdk-11

【解决方案1】：

将以下命令行添加到 setup.sh 解决了该问题：

amazon-linux-extras install java-openjdk11 -y

看来，java-11-openjdk 软件包不可用在 Amazon Linux 2 主存储库 中进行安装。

但它们现在在 Amazon Linux 2 extras 存储库中可用

【讨论】：