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Terrafom for Ecs fargate
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resource "aws_vpc" "main" { | |
cidr_block = var.cidr | |
enable_dns_support = true | |
enable_dns_hostnames = true | |
tags = { | |
Name = "${var.name}-vpc-${var.environment}" | |
Environment = var.environment | |
} | |
} | |
resource "aws_internet_gateway" "main" { | |
vpc_id = aws_vpc.main.id | |
tags = { | |
Name = "${var.name}-igw-${var.environment}" | |
Environment = var.environment | |
} | |
} | |
resource "aws_nat_gateway" "main" { | |
count = length(var.private_subnets) | |
allocation_id = element(aws_eip.nat.*.id, count.index) | |
subnet_id = element(aws_subnet.public.*.id, count.index) | |
depends_on = [aws_internet_gateway.main] | |
tags = { | |
Name = "${var.name}-nat-${var.environment}-${format("%03d", count.index+1)}" | |
Environment = var.environment | |
} | |
} | |
resource "aws_eip" "nat" { | |
count = length(var.private_subnets) | |
vpc = true | |
tags = { | |
Name = "${var.name}-eip-${var.environment}-${format("%03d", count.index+1)}" | |
Environment = var.environment | |
} | |
} | |
resource "aws_subnet" "private" { | |
vpc_id = aws_vpc.main.id | |
cidr_block = element(var.private_subnets, count.index) | |
availability_zone = element(var.availability_zones, count.index) | |
count = length(var.private_subnets) | |
tags = { | |
Name = "${var.name}-private-subnet-${var.environment}-${format("%03d", count.index+1)}" | |
Environment = var.environment | |
} | |
} | |
resource "aws_subnet" "public" { | |
vpc_id = aws_vpc.main.id | |
cidr_block = element(var.public_subnets, count.index) | |
availability_zone = element(var.availability_zones, count.index) | |
count = length(var.public_subnets) | |
map_public_ip_on_launch = true | |
tags = { | |
Name = "${var.name}-public-subnet-${var.environment}-${format("%03d", count.index+1)}" | |
Environment = var.environment | |
} | |
} | |
resource "aws_route_table" "public" { | |
vpc_id = aws_vpc.main.id | |
tags = { | |
Name = "${var.name}-routing-table-public" | |
Environment = var.environment | |
} | |
} | |
resource "aws_route" "public" { | |
route_table_id = aws_route_table.public.id | |
destination_cidr_block = "0.0.0.0/0" | |
gateway_id = aws_internet_gateway.main.id | |
} | |
resource "aws_route_table" "private" { | |
count = length(var.private_subnets) | |
vpc_id = aws_vpc.main.id | |
tags = { | |
Name = "${var.name}-routing-table-private-${format("%03d", count.index+1)}" | |
Environment = var.environment | |
} | |
} | |
resource "aws_route" "private" { | |
count = length(compact(var.private_subnets)) | |
route_table_id = element(aws_route_table.private.*.id, count.index) | |
destination_cidr_block = "0.0.0.0/0" | |
nat_gateway_id = element(aws_nat_gateway.main.*.id, count.index) | |
} | |
resource "aws_route_table_association" "private" { | |
count = length(var.private_subnets) | |
subnet_id = element(aws_subnet.private.*.id, count.index) | |
route_table_id = element(aws_route_table.private.*.id, count.index) | |
} | |
resource "aws_route_table_association" "public" { | |
count = length(var.public_subnets) | |
subnet_id = element(aws_subnet.public.*.id, count.index) | |
route_table_id = aws_route_table.public.id | |
} | |
resource "aws_flow_log" "main" { | |
iam_role_arn = aws_iam_role.vpc-flow-logs-role.arn | |
log_destination = aws_cloudwatch_log_group.main.arn | |
traffic_type = "ALL" | |
vpc_id = aws_vpc.main.id | |
} | |
resource "aws_cloudwatch_log_group" "main" { | |
name = "${var.name}-cloudwatch-log-group" | |
} | |
resource "aws_iam_role" "vpc-flow-logs-role" { | |
name = "${var.name}-vpc-flow-logs-role" | |
assume_role_policy = <<EOF | |
{ | |
"Version": "2012-10-17", | |
"Statement": [ | |
{ | |
"Sid": "", | |
"Effect": "Allow", | |
"Principal": { | |
"Service": "vpc-flow-logs.amazonaws.com" | |
}, | |
"Action": "sts:AssumeRole" | |
} | |
] | |
} | |
EOF | |
} | |
resource "aws_iam_role_policy" "vpc-flow-logs-policy" { | |
name = "${var.name}-vpc-flow-logs-policy" | |
role = aws_iam_role.vpc-flow-logs-role.id | |
policy = <<EOF | |
{ | |
"Version": "2012-10-17", | |
"Statement": [ | |
{ | |
"Action": [ | |
"logs:CreateLogGroup", | |
"logs:CreateLogStream", | |
"logs:PutLogEvents", | |
"logs:DescribeLogGroups", | |
"logs:DescribeLogStreams" | |
], | |
"Effect": "Allow", | |
"Resource": "*" | |
} | |
] | |
} | |
EOF | |
} | |
output "id" { | |
value = aws_vpc.main.id | |
} | |
output "cidr" { | |
value = aws_vpc.main.cidr_block | |
} | |
output "public_subnets" { | |
value = aws_subnet.public | |
} | |
output "private_subnets" { | |
value = aws_subnet.private | |
} |
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variable "name" { | |
description = "the name of your stack, e.g. \"demo\"" | |
} | |
variable "environment" { | |
description = "the name of your environment, e.g. \"prod\"" | |
} | |
variable "cidr" { | |
description = "The CIDR block for the VPC." | |
} | |
variable "public_subnets" { | |
description = "List of public subnets" | |
} | |
variable "private_subnets" { | |
description = "List of private subnets" | |
} | |
variable "availability_zones" { | |
description = "List of availability zones" | |
} |
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