Add better cloud formation examples

chrisguest75 · Oct 5, 2023 · 6882126 · 6882126
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diff --git a/33_awscli/CLOUDWATCH.md → 33_awscli/CLOUDWATCH_ALARMS.md b/33_awscli/CLOUDWATCH.md → 33_awscli/CLOUDWATCH_ALARMS.md
diff --git a/33_awscli/CLOUD_FORMATION.md b/33_awscli/CLOUD_FORMATION.md
@@ -4,15 +4,25 @@ Demonstrate some example commands for managing Cloud Formation Stacks
 
 ## List stacks
 
+Find and list the deployed stacks.  
+
 ```sh
 export PAGER=
 
 # list all stacks in a region
 aws --profile $AWS_PROFILE --region $AWS_REGION cloudformation list-stacks
+
+# grab stack older than a date that are still deployed
+aws --profile $AWS_PROFILE --region $AWS_REGION cloudformation list-stacks --query "StackSummaries[?LastUpdatedTime<='2023-02-01'&&StackStatus=='UPDATE_COMPLETE']" | jq '. |= sort_by(.LastUpdatedTime) | .'
+
+# describe
+aws --profile $AWS_PROFILE --region $AWS_REGION cloudformation describe-stacks --query "Stacks[?LastUpdatedTime<='2023-02-01'&&StackStatus=='UPDATE_COMPLETE']" | jq '. |= sort_by(.LastUpdatedTime) | .'
 ```
 
 ## Get Cloud Formation outputs
 
+Get outputs from stacks so you can pass them into other processess.  
+
 ```sh
 export stackname=python-lambda-s3-get-dev
 aws --profile $AWS_PROFILE --region $AWS_REGION cloudformation describe-stacks | jq -r ".Stacks[] | select(.StackName == \"$stackname\")"
@@ -25,6 +35,40 @@ aws --profile $AWS_PROFILE --region $AWS_REGION cloudformation describe-stacks |
 aws cloudformation describe-stacks --stack-name mylambdastack  --query "Stacks[0].Outputs" | jq -c '.[] | [.OutputKey, .OutputValue]'
 ```
 
+## List stack resources
+
+Get a list of the resources in a stack.  
+
+```sh
+# get the first stack name
+aws --profile $AWS_PROFILE --region $AWS_REGION cloudformation describe-stacks --query "Stacks[?LastUpdatedTime<='2023-02-01'&&StackStatus=='UPDATE_COMPLETE']" | jq -r '. |= sort_by(.LastUpdatedTime) | .[0].StackName'
+
+# show resources
+aws --profile $AWS_PROFILE --region $AWS_REGION cloudformation describe-stack-resources --stack-name "mystackname"
+```
+
+## Delete stacks
+
+NOTE: Deleting stacks with non-empty buckets will fail.  
+
+```sh
+# find stacks to delete.
+aws --profile $AWS_PROFILE --region $AWS_REGION cloudformation list-stacks --query "StackSummaries[?LastUpdatedTime<='2023-08-01'&&StackStatus=='UPDATE_COMPLETE']" | jq '. |= sort_by(.LastUpdatedTime) | .' | jq '.[].StackName' | sort
+
+# show resource types
+export STACKNAME=
+aws --profile $AWS_PROFILE --region $AWS_REGION cloudformation describe-stack-resources --stack-name "$STACKNAME" | jq -r '.StackResources[] | [.ResourceType, .PhysicalResourceId] | @csv' | sort
+aws --profile $AWS_PROFILE --region $AWS_REGION cloudformation describe-stack-resources --stack-name "$STACKNAME" | jq -r '.StackResources[] | [.ResourceType, .PhysicalResourceId] | @csv' | grep "AWS::S3::Bucket"
+
+export BUCKETNAME=
+# get the bucket name from the resources
+aws --profile $AWS_PROFILE --region $AWS_REGION s3 ls s3://${BUCKETNAME}
+aws --profile $AWS_PROFILE --region $AWS_REGION s3 rm --recursive s3://${BUCKETNAME}
+
+# now delete stack
+aws --profile $AWS_PROFILE --region $AWS_REGION cloudformation delete-stack --stack-name "$STACKNAME"
+```
+
 ## Resources
 
 * cloudformation [here](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/cloudformation/index.html)