Amazon-ebssurrogate Process Is Creating root disk snapshot and AMI

[Ammad Khan]

Hello,

Since 2 years I'm using packer and it was perfectly working without a single for Debian 9(stretch). Recently, I changed the filters and tried to create a new AMI with amazon-ebssurrogate for buster but it was taking a snapshot and creating AMI of root(xvda) disk instead of EBS attached volume (xvdf).

I'm using the packer 1.6.2 amd64 version, for reference I'm sharing the JSON snippet.

      "type": "amazon-ebssurrogate",

      "access_key": "{{user `aws_access_key`}}",

      "secret_key": "{{user `aws_secret_key`}}",

      "region": "us-east-1",

      "ssh_username": "admin",

      "instance_type": "t3.small",

      "ami_name": "Cloudways-{{user `DISTRIBUTION`}}-{{user `ENV_TYPE`}}[{{isotime \"02/01/2006\"}}]",

      "ami_virtualization_type": "hvm",

      "ena_support" : true,

      "source_ami_filter": {

        "filters": {

          "virtualization-type": "hvm",

          "name": "debian-10-amd64*",

          "root-device-type": "ebs",

          "architecture": "x86_64"

        },

        "owners": ["136693071363"],

        "most_recent": true

      },

      "tags": {

         "env": "{{user `ENV_TYPE`}}"

      },

      "launch_block_device_mappings": [

        {

          "volume_type": "gp2",

          "device_name": "/dev/xvdf",

          "delete_on_termination": false,

          "volume_size": 25,

          "snapshot_id": "{{user `SNAPSHOT_ID`}}"

        }

      ],

      "ami_root_device": {

        "source_device_name": "/dev/xvdf",

        "device_name": "/dev/xvda",

        "delete_on_termination": false,

        "volume_size": 25,

        "volume_type": "gp2"

      }

    }

  ],

  "provisioners": [

    {

      "type": "shell",

      "inline": [

        "sudo mkdir /mnt/disk",

        "sudo mount /dev/nvme1n1p1 /mnt/disk",

        "sudo touch /mnt/disk/etc/resolv.conf"

      ]

    },

    {

      "type": "shell",

      "execute_command": "sudo -S sh -c '{{ .Vars }} {{ .Path }}'",

      "script": "script.sh",

      "environment_vars": [

        "PROVIDER={{ user `PROVIDER` }}",

        "ENV_TYPE={{ user `ENV_TYPE` }}",

        "DISTRIBUTION={{ user `DISTRIBUTION` }}"

      ]

    }