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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

  1. 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 `

  1. Delete and Re-create a Granular Stack
  2. Update the ECS Service via the API

Thanks to Tom Hombergs