Support for multiple security groups with security_group_ids

[zpeschke]

Community Note

Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request.
Please do not leave "+1" or "me too" comments, they generate extra noise for issue followers and do not help prioritize the request.
If you are interested in working on this issue or have submitted a pull request, please leave a comment.

Description

Currently, only one security group ID can be supplied to an instance with security_group_id. It would be great to be able to supply a list of security group IDs via a new parameter: security_group_ids.

Use Case(s)

Attach multiple, pre-existing security groups to an instance created by packer instead of just one.

Potential configuration

{
  "security_group_ids": [
    "sg-...",
    "sg-...",
    "sg-..."
  ]
}

Potential References

• Supplying a comma separated string of security group IDs is supported by the SDK: https://github.com/aliyun/alibaba-cloud-sdk-go/blob/master/services/ecs/describe_security_groups.go#L89
• According to API docs (see SecurityGroupIds in link), the list needs to be formatted into a string representation of a JSON array with a max of 100 secgroups: https://www.alibabacloud.com/help/en/elastic-compute-service/latest/describesecuritygroups
• A similar implementation to this was added to AWS long ago: builder/amazon: instances can be launched with a list of security groups packer#499