Lab setup data from the Pluralsight course on:

Create and Manage Stacks with AWS CloudFormation Using the Command Line Interface

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Validating a template

aws cloudformation validate-template \
--template-body file://ec2-template.json

Estimating a stack costs

aws cloudformation estimate-template-cost \
--template-body file://ec2-template.json \
--parameters ParameterKey=KeyName,ParameterValue=newcluster \
ParameterKey=InstanceType,ParameterValue=t2.micro

Creating a new stack

aws cloudformation create-stack \
--template-body file://ec2-template.json \
--stack-name my-instance \
--parameters ParameterKey=KeyName,ParameterValue=newcluster \
ParameterKey=InstanceType,ParameterValue=t2.micro

Display stack life cycle events

aws cloudformation describe-stack-events \
--stack-name my-instance

Create stack with parameters

aws cloudformation create-stack \
--template-body file://lamp-as.json \
--stack-name lamp-as \
--parameters \
ParameterKey=KeyName,ParameterValue=newcluster \
ParameterKey=VpcId,ParameterValue=vpc-1ffbc964 \
ParameterKey=Subnets,ParameterValue=\'subnet-0e170b31,subnet-52d6117c\' \
ParameterKey=DBUser,ParameterValue=myadmin \
ParameterKey=DBPassword,ParameterValue=mypass23

Describe EC2 instances

aws ec2 describe-instances \
--filters Name=instance-state-name,Values=running \
--query 'Reservations[*].Instances[*].{Instance:InstanceId,PublicIPAddress:PublicIpAddress}'

A rollback configuration

--rollback-configuration
{
"RollbackTriggers": [
{
"Arn": "$ALARM_ARN",
"Type": "AWS::CloudWatch::Alarm"
}
],
"MonitoringTimeInMinutes": 2
}

Update a stack

aws cloudformation update-stack \
--stack-name newstack \
--template-body file://ec2-template-update1.json \
--parameters ParameterKey=KeyName,ParameterValue=newcluster

Change set commands

aws cloudformation create-change-set \
--stack-name my-stack \
--change-set-name my-change-set-4 \
--template-body file://template-update3.yaml \
--capabilities CAPABILITY_IAM

aws cloudformation list-change-sets \
--stack-name my-stack

aws cloudformation describe-change-set \
--change-set-name my-change-set-4

aws cloudformation execute-change-set 
--change-set-name my-change-set-4
--stack-name my-stack

Reference a transform

{
"Transform" : {
"Name" : "AWS::Include",
"Parameters" : {
"Location" : "s3://MyAmazonS3BucketName/MyFileName.json"
}
}
}