Associate kms key

[Paramadon]

Description of the issue

Currently customer can not pass in kms key id in for log group to assoicate their log groups to there kms key. This pr allow customer to pass in kms_key_id for there log groups.

Example agent config:

{
  "logs": {
    "logs_collected": {
      "files": {
        "collect_list": [
          {
            "file_path": "/var/log/myapp.log",
            "log_group_name": "my-app-logs",
            "log_stream_name": "{instance_id}",
            "encoding": "utf-8",
            "kms_key_id": "arn:aws:kms:us-west-2:12345:key/YOUR-KMS-KEY-ID"
          }
        ]
      }
    }
  }
}

Description of changes

License

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

Tests

Ran test to check if there is not kms key or if kms key is wrong or if api request fails and make sure we fails safely and don't panic. Also tested and log group creation works (log groups have kms key id assoicated with them)

Requirements

Before commit the code, please do the following steps.

1. Run make fmt and make fmt-sh
2. Run make lint

[Paramadon]

Needed to change package name due to lint issues

[nathalapooja]

Add a unit test when kms id is not empty and validate the dest for the key

[github-actions]

This PR was marked stale due to lack of activity.