Because not a lot of Python CDK examples seem to be available on the web I share this CDK code snippet for the common use case of creating a Fargate service. The code below deploys an ECS Fargate service on an ECS cluster. The Service uses a Docker Hub image and contains a port mapping. The code should be self-explanatory.
from aws_cdk import (
core, aws_ec2 as ec2,
aws_ecs as ecs,
aws_ecs_patterns as ecs_patterns
)
class ExampleStack(core.Stack):
def __init__(self, scope: core.Construct, construct_id: str, **kwargs) -> None:
super().__init__(scope, construct_id, **kwargs)
vpc = ec2.Vpc(self, "some-vpc",
cidr="10.0.0.0/22",
max_azs=3)
cluster = ecs.Cluster(self, "some-cluser", vpc=vpc)
task_definition = ecs.FargateTaskDefinition( self, "spring-boot-td",
cpu=512, memory_limit_mib=2048)
image = ecs.ContainerImage.from_registry("springio/gs-spring-boot-docker")
container = task_definition.add_container( "spring-boot-container", image=image)
port_mapping = ecs.PortMapping(container_port=8080, host_port=8080)
container.add_port_mappings(port_mapping)
ecs_patterns.ApplicationLoadBalancedFargateService(self, "some-service",
cluster=cluster,
task_definition=task_definition,
desired_count=2,
cpu=512,
memory_limit_mib=2048,
public_load_balancer=True)
Enjoy!
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