aws-base.json

{
    "variables": {
        "runner_user": "runner",
        "access_key": "{{env `AWS_ACCESS_KEY_ID`}}",
        "secret_key": "{{env `AWS_SECRET_ACCESS_KEY`}}",
        "subnet_id": "{{env `PACKER_SUBNET_ID`}}",
        "aws_account": "{{env `PACKER_AWS_ACCOUNT`}}"
    },
    "builders": [
        {
            "name": "focal",
            "region": "us-east-1",
            "type": "amazon-ebs",
            "access_key": "{{user `access_key`}}",
            "secret_key": "{{user `secret_key`}}",
            "ssh_keypair_name": "meroxa-aws-ci",
            "ssh_agent_auth": true,
            "ssh_username": "root",
            "subnet_id": "{{user `subnet_id`}}",
            "source_ami_filter": {
                "filters": {
                    "virtualization-type": "hvm",
                    "name": "root-focal",
                    "root-device-type": "ebs"
                },
                "owners": [
                    "{{user `aws_account`}}"
                ],
                "most_recent": true
            },
            "instance_type": "m5.xlarge",
            "ami_name": "github-runner-base-focal",
            "force_deregister": true,
            "force_delete_snapshot": true,
            "ami_regions": [
                "us-east-1"
            ],
            "tags": {
                "Name": "github-runner-base-focal-{{isotime \"20060102150405\"}}",
                "os": "ubuntu",
                "source": "github-runner",
                "service": "ci",
                "env": "dev"
            },
            "launch_block_device_mappings": [
                {
                    "device_name": "/dev/sda1",
                    "volume_size": 100,
                    "volume_type": "gp2",
                    "delete_on_termination": true
                }
            ]
        }
    ],
    "provisioners": [
        {
            "type": "file",
            "source": "{{template_dir}}/etc/hosts",
            "destination": "/etc/hosts"
        },
        {
            "type": "shell",
            "inline": [
                "echo 127.0.0.1 $(hostname) >> /etc/hosts",
                "sed -i 's/disable_root: false/disable_root: true/g' /etc/cloud/cloud.cfg",
                "usermod --login {{user `runner_user`}} --move-home --home /home/{{user `runner_user`}} ubuntu",
                "groupmod --new-name {{user `runner_user`}} ubuntu",
                "apt-get -y -o Dpkg::Options::=\"--force-confdef\" -o Dpkg::Options::=\"--force-confold\" upgrade",
                "sed -i 's/disable_root: true/disable_root: false/g' /etc/cloud/cloud.cfg",
                "sed -i 's/name: ubuntu/name: {{user `runner_user`}}/g' /etc/cloud/cloud.cfg",
                "sed -i 's/gecos: Ubuntu/gecos: GitHub Actions Runner/g' /etc/cloud/cloud.cfg",
                "echo 'session required pam_env.so readenv=1' >> /etc/pam.d/sudo"
            ],
            "environment_vars": [
                "DEBIAN_FRONTEND=noninteractive"
            ],
            "execute_command": "sudo sh -c '{{ .Vars }} {{ .Path }}'"
        }
    ]
}