Use this data source to get IDs and VPC membership of Security Groups that are created outside of Terraform.
data "aws_security_groups" "test" {
tags {
Application = "k8s",
Environment = "dev"
}
}
data "aws_security_groups" "test" {
filter {
name = "group-name"
values = ["*nodes*"]
}
filter {
name = "vpc-id"
values = ["${var.vpc_id}"]
}
}
tags - (Optional) A mapping of tags, each pair of which must exactly match for desired security groups.
filter - (Optional) One or more name/value pairs to use as filters. There are several valid keys, for a full reference, check out describe-security-groups in the AWS CLI reference.
ids - IDs of the matches security groups. vpc_ids - The VPC IDs of the matched security groups. The data source's tag or filter will span VPCs unless the vpc-id filter is also used.
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https://www.terraform.io/docs/providers/aws/d/security_groups.html