emmy-github-webdev/ecs-cloudformation-fargat

Deploys a Fargate cluster that is in a VPC with both public and private subnets. Containers can be deployed into either the public subnets or the private subnets.

Sample script to create the infrastructure and the serive

We can spin up the stacks using the AWS CLI with this Bash script:

` aws cloudformation create-stack
--stack-name reflectoring-network
--template-body file://network.yml
--capabilities CAPABILITY_IAM

aws cloudformation wait stack-create-complete --stack-name reflectoring-network

aws cloudformation create-stack
--stack-name reflectoring-service
--template-body file://service.yml
--parameters
ParameterKey=StackName,ParameterValue=reflectoring-network
ParameterKey=ServiceName,ParameterValue=reflectoring-hello-world
ParameterKey=ImageUrl,ParameterValue=docker.io/reflectoring/aws-hello-world:latest
ParameterKey=ContainerPort,ParameterValue=8080
ParameterKey=HealthCheckPath,ParameterValue=/hello
ParameterKey=HealthCheckIntervalSeconds,ParameterValue=90

aws cloudformation wait stack-create-complete --stack-name reflectoring-service

`

Updating a CloudFormation Stack

1. AWS cloudformation ChangeSet: To create a changeset, we use the create-change-set command aws cloudformation create-change-set \ --change-set-name update-reflectoring-service \ --stack-name reflectoring-service \ --use-previous-template \ --parameters \ ParameterKey=ImageUrl,ParameterValue=docker.io/reflectoring/aws-hello-world:v4 \ ... more parameters After having created a changeset, we can review it in the AWS console or with this CLI command:

aws cloudformation describe-change-set \ --stack-name reflectoring-service \ --change-set-name update-reflectoring-service

When we’re happy with the changes, we can execute the changeset:

aws cloudformation execute-change-set \ --stack-name reflectoring-service \ --change-set-name update-reflectoring-service

Other options of updating cloudformation stack

2. Updating the Service Stack

` aws cloudformation update-stack
--stack-name reflectoring-service
--use-previous-template
--parameters
ParameterKey=ImageUrl,ParameterValue=docker.io/reflectoring/aws-hello-world:v3
... more parameters

aws cloudformation wait stack-update-complete --stack-name reflectoring-service `

3. Delete and Re-create a Granular Stack
4. Update the ECS Service via the API

Thanks to Tom Hombergs