Packer to build a Apache 2 Ubuntu Webserver Image in Oracle Cloud

ociApache2UbuntuImage.json

{
    "variables": {
        "compartment_id": "",
        "user_id": "",
        "ssh_user": "ubuntu",
        "shape": "VM.Standard2.1",
        "availability_domain": "hwmL:EU-FRANKFURT-1-AD-3",
        "region": "eu-frankfurt-1",
        "key_file": "oci_api_key.pem",
        "image_name": "DemoImage",
        "subnet_ocid": "",
        "fingerprint": "",
        "base_image_ocid": "ocid1.image.oc1.eu-frankfurt-1.aaaaaaaakk4gj6boyejvg6qhwe3rzeoyqcqduik33bgzvzhn6ehyzliqff2a"
    },

    "builders": [
        {
            "tenancy_ocid": "{{user `compartment_id`}}",
            "user_ocid": "{{user `user_id`}}",
            "key_file": "{{ user `key_file`}}",
            "availability_domain": "{{user `availability_domain` }}",
            "base_image_ocid": "{{user `base_image_ocid` }}",
            "compartment_ocid": "{{user `compartment_id` }}",
            "image_name": "{{user `image_name` }}",
            "shape": "{{user `shape` }}",
            "ssh_username": "{{user `ssh_user` }}",
            "subnet_ocid": "{{user `subnet_ocid` }}",
            "type": "oracle-oci",
            "region": "{{user `region` }}",
            "fingerprint": "{{user `fingerprint` }}"
        }
    ],

    "provisioners": [
        {
            "type": "shell",
            "inline": [
                "sudo apt-get update -y",
                "sudo apt-get upgrade -y",
                "sudo apt-get install apache2 -y",
                "sudo service apache2 start"
            ]
        }
    ]
}