Allow referencing security groups by names in SecurityGroupPolicy resource

[vgrigoruk]

AWS ALB controller supports specifying security groups via ID (e.g. sg-XXXXXX) and name: https://kubernetes-sigs.github.io/aws-load-balancer-controller/v2.2/guide/ingress/annotations/#security-groups

Both name or ID of securityGroups are supported. Name matches a Name tag, not the groupName attribute.

According to documentation, SecurityGroupPolicy supports securityGroupIds only.
It will be very convenient to support specifying security groups by name too, as it would allow us to generate / template SecurityGroupPolicy resource w/o explicitly passing a specific security group IDs (which are usually managed separately with other IaaC tools, e.g. Terraform).

Example:

apiVersion: vpcresources.k8s.aws/v1beta1
kind: SecurityGroupPolicy
metadata:
  name: my-security-group-policy
  namespace: my-namespace
spec:
  podSelector: 
    matchLabels:
      role: my-role
  securityGroups:
    groupIds:
    - my_pod_security_group_id
    groupNames:
      - pod_security_group_name_tag

[jdn5126]

This is a feature request for Security Groups for Pods that is already tracked by aws/amazon-vpc-resource-controller-k8s#20, so closing this discussion