Custom Metrics

Author: mrichman

Monitoring-Debugging/CloudWatch-Custom-Metrics/README.md

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+# Publishing Custom Metrics from Lambda
+
+Install the demo app using the [AWS Serverless Application Model](https://aws.amazon.com/serverless/sam/)
+
+## Create the Lambda deployment package
+
+`cd shopping-cart-app`
+
+Create an S3 bucket in the location where you want to save the packaged code. If you want to use an existing S3 bucket, skip this step.
+
+```sh
+aws s3 mb s3://123456789012-shopping-cart-app
+```
+
+Create the deployment artifacts with dependencies
+
+```sh
+sam build
+```
+
+Create the Lambda function deployment package by running the following `package` AWS SAM CLI command at the command prompt.
+
+```sh
+sam package \
+    --output-template-file packaged.yaml \
+    --s3-bucket 123456789012-shopping-cart-app
+```
+
+In the AWS SAM CLI, use the `deploy` command to deploy all of the resources that you defined in the template.
+
+```sh
+sam deploy \
+    --template-file packaged.yaml \
+    --stack-name shopping-cart-app \
+    --capabilities CAPABILITY_IAM
+```
+
+## Locate API Gateway Endpoint URLs
+
+1. Open the AWS CloudFormation console at [https://console\.aws\.amazon\.com/cloudformation](https://console.aws.amazon.com/cloudformation/)\.
+1. Choose the AWS CloudFormation stack that you created in the preceding step from the list shown\.
+1. Under **Outputs**, note the API Gateway endpoint URLs.
+1. Browse each and observe the JSON responses.
+
+## Generate Traffic
+
+Using the API Gateway endpoint URLs in the previous step, generate load against each of these endpoints.
+
+Modify `URLs.txt` to use the endpoint URLs in your account.
+
+Run [Apache Bench](http://httpd.apache.org/docs/2.4/programs/ab.html) using [parallel](http://www.gnu.org/software/parallel/):
+
+```sh
+cat URLs.txt | parallel 'ab -c 350 -n 20000 {}'
+```
+
+## View Custom Metrics

Monitoring-Debugging/CloudWatch-Custom-Metrics/shopping-cart-app/.gitignore

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+.aws-sam
+packaged.yaml
+
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