Realized I ve accumulated a collection of little scripts to Serverless Stack #sst

Realized I've accumulated a collection of little s...

Dmitry Pavluk

03/26/2021, 4:11 AM

Realized I've accumulated a collection of little scripts to help patch up things that CDK and/or SST don't easily provide, might be useful to others:

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# API GW: Set up throttling and metrics
aws apigatewayv2 update-stage \
    --api-id xxx \
    --stage-name '$default' \
    --default-route-settings '{"ThrottlingBurstLimit":10,"ThrottlingRateLimit":50,"DetailedMetricsEnabled":true}'


# CFN: fix stupidity. See <https://github.com/serverless-stack/serverless-stack/issues/125>
aws logs put-resource-policy --policy-name AWSLogDeliveryWrite20150319 --policy-document "{\"Version\":\"2012-10-17\",\"Statement\":[{\"Sid\":\"AWSLogDeliveryWrite\",\"Effect\":\"Allow\",\"Principal\":{\"Service\":\"<http://delivery.logs.amazonaws.com|delivery.logs.amazonaws.com>\"},\"Action\":[\"logs:CreateLogStream\",\"logs:PutLogEvents\"],\"Resource\":[\"*\"]}]}"


# Aurora: enable Performance Insights on every instance. If needed: brew install jq
aws rds describe-db-instances --query 'DBInstances[*].[DBInstanceIdentifier]' \
        | jq -r '.[]' | jq -r '.[]' \
        | xargs -J % -L1 \
        aws rds modify-db-instance \
            --db-instance-identifier % \
            --enable-performance-insights

Dmitry Pavluk

03/26/2021, 4:12 AM

Given that log groups aren't deleted with CFN stack, might repurpose that last script to clean up logs after removing a stack

Frank

03/26/2021, 7:18 AM

I noticed CDK will be adding an option to

lambda.Function

to set the retain policy for the Lambda log group. That will allow setting the log groups to be deleted on stack removal.

Frank

03/26/2021, 7:25 AM

And to set up the API throttling and metrics in CDK, you can do something like this before CDK adds high level support for it:

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const api = new sst.Api(...);
api.httpApi.defaultStage.node.defaultChild.defaultRouteSettings = {
  throttlingBurstLimit: 10,
  throttlingRateLimit: 50,
  detailedMetricsEnabled: true,
};

Frank

03/26/2021, 7:27 AM

api.httpApi.defaultStage.node

give you the CloudFormation object for the default stage. This lets you edit the raw CF template.

Dmitry Pavluk

03/26/2021, 10:07 AM

ah nice! ty. I tried jumping up and down the nodes but didn't feel confident to change from there

Dennis Dang

03/26/2021, 12:01 PM

Nice. so that's how you set the throttle limits!

Roman Iaremchuk

07/15/2021, 9:14 AM

@Frank I have issue for api.httpApi.defaultStage.node.defaultChild.defaultRouteSettings: TS2339: Property 'defaultRouteSettings' does not exist on type 'IConstruct'.

Frank

07/15/2021, 9:25 AM

Try casting

api.httpApi.defaultStage.node.defaultChild as CfnStage

Frank

07/15/2021, 9:26 AM

And you can import

CfnStage

like this:

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import { CfnStage } from "@aws-cdk/aws-apigatewayv2";

Roman Iaremchuk

07/15/2021, 11:48 AM

@Frank thanks

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