terraform.aws-baseline-infra/modules/networking/vpc_subnets/vpc-flowlog.tf

68 lines
1.5 KiB
HCL

resource "aws_flow_log" "vpc-flowlog" {
count = var.enable-flow-log ? 1 : 0
iam_role_arn = aws_iam_role.vpcflowlog-role.arn
log_destination = aws_cloudwatch_log_group.vpcflowlog-loggroup[0].arn
traffic_type = "ALL"
vpc_id = aws_vpc.vpc.id
tags = merge(
var.default-tags,
{
Name = "${local.resource-prefix}-vpcflowlog"
},
)
}
resource "aws_cloudwatch_log_group" "vpcflowlog-loggroup" {
count = var.enable-flow-log ? 1 : 0
name_prefix = "vpcflowlog/${aws_vpc.vpc.id}/"
kms_key_id = "arn:aws:kms:${var.aws-region}:${data.aws_caller_identity.this.account_id}:alias/lab-apne1-racken-cleanslate-kmskey-default"
retention_in_days = var.vpcflowlog-retain-days
tags = var.default-tags
}
resource "aws_iam_role" "vpcflowlog-role" {
name = "${local.resource-prefix}-vpcflowlog"
path = "/service/"
assume_role_policy = <<EOF
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "",
"Effect": "Allow",
"Principal": {
"Service": "vpc-flow-logs.amazonaws.com"
},
"Action": "sts:AssumeRole"
}
]
}
EOF
}
resource "aws_iam_role_policy" "vpcflowlog-role-policy" {
name = "${local.resource-prefix}-vpcflowlog"
role = aws_iam_role.vpcflowlog-role.id
policy = <<EOF
{
"Version": "2012-10-17",
"Statement": [
{
"Action": [
"logs:CreateLogGroup",
"logs:CreateLogStream",
"logs:PutLogEvents",
"logs:DescribeLogGroups",
"logs:DescribeLogStreams"
],
"Effect": "Allow",
"Resource": "*"
}
]
}
EOF
}