Private Fargate Instance with no internet egress: https://dev.to/danquack/private-fargate-deployment-with-vpc-endpoints-1h0p
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data "aws_iam_policy_document" "fargate-role-policy" { | |
statement { | |
actions = ["sts:AssumeRole"] | |
principals { | |
type = "Service" | |
identifiers = ["ecs.amazonaws.com", "ecs-tasks.amazonaws.com"] | |
} | |
} | |
} | |
resource "aws_iam_policy" "fargate_execution" { | |
name = "fargate_execution_policy" | |
policy = <<EOF | |
{ | |
"Version": "2012-10-17", | |
"Statement": [ | |
{ | |
"Effect": "Allow", | |
"Action": [ | |
"ecr:GetDownloadUrlForLayer", | |
"ecr:BatchGetImage", | |
"ecr:BatchCheckLayerAvailability" | |
], | |
"Resource": "arn:aws:ecr:${data.aws_region.current.name}:${data.aws_caller_identity.current.account_id}:repository/${var.app_image}" | |
}, | |
{ | |
"Effect": "Allow", | |
"Action": [ | |
"ecr:GetAuthorizationToken" | |
], | |
"Resource": "*" | |
}, | |
{ | |
"Effect": "Allow", | |
"Action": [ | |
"logs:CreateLogGroup", | |
"logs:CreateLogStream" | |
], | |
"Resource": "*" | |
} | |
] | |
} | |
EOF | |
} | |
resource "aws_iam_policy" "fargate_task" { | |
name = "fargate_task_policy" | |
policy = <<EOF | |
{ | |
"Version": "2012-10-17", | |
"Statement": [ | |
{ | |
"Effect": "Allow", | |
"Action": [ | |
"logs:CreateLogGroup", | |
"logs:CreateLogStream", | |
"logs:PutLogEvents" | |
], | |
"Resource": "*" | |
} | |
] | |
} | |
EOF | |
} | |
resource "aws_iam_role" "fargate_execution" { | |
name = "fargate_execution_role" | |
assume_role_policy = data.aws_iam_policy_document.fargate-role-policy.json | |
} | |
resource "aws_iam_role" "fargate_task" { | |
name = "fargate_task_role" | |
assume_role_policy = data.aws_iam_policy_document.fargate-role-policy.json | |
} | |
resource "aws_iam_role_policy_attachment" "fargate-execution" { | |
role = aws_iam_role.fargate_execution.name | |
policy_arn = aws_iam_policy.fargate_execution.arn | |
} | |
resource "aws_iam_role_policy_attachment" "fargate-task" { | |
role = aws_iam_role.fargate_task.name | |
policy_arn = aws_iam_policy.fargate_task.arn | |
} | |
# Fargate Container | |
resource "aws_cloudwatch_log_group" "app" { | |
name = "/ecs/app" | |
tags = { | |
Environment = "dev" | |
} | |
} | |
resource "aws_ecs_cluster" "main" { | |
depends_on = [aws_cloudwatch_log_group.app] | |
name = "cluster" | |
} | |
locals { | |
container_defintion = [{ | |
cpu = 1024 | |
image = "${data.aws_caller_identity.current.account_id}.dkr.ecr.${data.aws_region.current.name}.amazonaws.com/${var.app_image}" | |
memory = 2048 | |
name = "app" | |
networkMode = "awsvpc" | |
logConfiguration = { | |
logdriver = "awslogs" | |
options = { | |
"awslogs-group" = "/ecs/app" | |
"awslogs-region" = data.aws_region.current.name | |
"awslogs-stream-prefix" = "stdout" | |
} | |
} | |
}] | |
} | |
resource "aws_ecs_task_definition" "app" { | |
family = "app" | |
network_mode = "awsvpc" | |
cpu = local.container_defintion.0.cpu | |
memory = local.container_defintion.0.memory | |
requires_compatibilities = ["FARGATE"] | |
container_definitions = jsonencode(local.container_defintion) | |
execution_role_arn = aws_iam_role.fargate_execution.arn | |
task_role_arn = aws_iam_role.fargate_task.arn | |
tags = { | |
Name = "app" | |
Environment = "dev" | |
} | |
} | |
resource "aws_ecs_service" "main" { | |
name = "service" | |
cluster = aws_ecs_cluster.main.id | |
task_definition = aws_ecs_task_definition.app.arn | |
desired_count = "1" | |
launch_type = "FARGATE" | |
network_configuration { | |
security_groups = [aws_security_group.ecs_task.id] | |
subnets = [aws_subnet.private_a.id] | |
} | |
} |
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provider "aws" { | |
region = "us-east-1" | |
} | |
data "aws_region" "current" {} | |
data "aws_caller_identity" "current" {} |
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resource "aws_security_group" "vpce" { | |
name = "vpce" | |
vpc_id = aws_vpc.main.id | |
ingress { | |
from_port = 443 | |
to_port = 443 | |
protocol = "tcp" | |
cidr_blocks = [aws_vpc.main.cidr_block] | |
} | |
tags = { | |
Environment = "dev" | |
} | |
} | |
resource "aws_security_group" "ecs_task" { | |
name = "ecs" | |
vpc_id = aws_vpc.main.id | |
egress { | |
from_port = 443 | |
to_port = 443 | |
protocol = "tcp" | |
cidr_blocks = [aws_vpc.main.cidr_block] | |
} | |
egress { | |
from_port = 443 | |
to_port = 443 | |
protocol = "tcp" | |
prefix_list_ids = [aws_vpc_endpoint.s3.prefix_list_id] | |
} | |
tags = { | |
Environment = "dev" | |
} | |
} |
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variable "app_image" {} |
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resource "aws_vpc" "main" { | |
cidr_block = "10.0.0.0/16" | |
enable_dns_hostnames = true | |
enable_dns_support = true | |
tags = { | |
Name = "endpoint" | |
Environment = "dev" | |
} | |
} | |
resource "aws_subnet" "private_a" { | |
vpc_id = aws_vpc.main.id | |
cidr_block = "10.0.2.0/24" | |
availability_zone = "${data.aws_region.current.name}a" | |
tags = { | |
Name = "endpoint-private-a" | |
Environment = "dev" | |
} | |
} | |
resource "aws_subnet" "private_b" { | |
vpc_id = aws_vpc.main.id | |
cidr_block = "10.0.1.0/24" | |
availability_zone = "${data.aws_region.current.name}b" | |
tags = { | |
Name = "endpoint-private-b" | |
Environment = "dev" | |
} | |
} | |
resource "aws_route_table" "private" { | |
vpc_id = aws_vpc.main.id | |
tags = { | |
Name = "Endpoint Private" | |
Environment = "dev" | |
} | |
} | |
resource "aws_route_table_association" "private_a" { | |
subnet_id = aws_subnet.private_a.id | |
route_table_id = aws_route_table.private.id | |
} | |
resource "aws_route_table_association" "private_b" { | |
subnet_id = aws_subnet.private_b.id | |
route_table_id = aws_route_table.private.id | |
} |
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resource "aws_vpc_endpoint" "s3" { | |
vpc_id = aws_vpc.main.id | |
service_name = "com.amazonaws.${data.aws_region.current.name}.s3" | |
vpc_endpoint_type = "Gateway" | |
route_table_ids = [aws_route_table.private.id] | |
tags = { | |
Name = "s3-endpoint" | |
Environment = "dev" | |
} | |
} | |
resource "aws_vpc_endpoint" "dkr" { | |
vpc_id = aws_vpc.main.id | |
private_dns_enabled = true | |
service_name = "com.amazonaws.${data.aws_region.current.name}.ecr.dkr" | |
vpc_endpoint_type = "Interface" | |
security_group_ids = [ | |
aws_security_group.vpce.id, | |
] | |
subnet_ids = [aws_subnet.private_a.id, aws_subnet.private_b.id] | |
tags = { | |
Name = "dkr-endpoint" | |
Environment = "dev" | |
} | |
} | |
resource "aws_vpc_endpoint" "logs" { | |
vpc_id = aws_vpc.main.id | |
private_dns_enabled = true | |
service_name = "com.amazonaws.${data.aws_region.current.name}.logs" | |
vpc_endpoint_type = "Interface" | |
security_group_ids = [ | |
aws_security_group.vpce.id, | |
] | |
subnet_ids = [aws_subnet.private_a.id, aws_subnet.private_b.id] | |
tags = { | |
Name = "logs-endpoint" | |
Environment = "dev" | |
} | |
} |
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