dmclf/sample-nodejs-cloudformation

sample-nodejs-cloudformation

Table of Contents

1. overview
2. prerequisites
3. initial-deploy
4. updating

---

overview

• very basic deployment

• example will deploy a sample nodejs hello world application ( https://github.com/GoogleCloudPlatform/nodejs-getting-started/tree/30d625750f542a03e9c239ac851560ac0def3080/1-hello-world )

• will have default auto-scaling of:

  • min:1 max:5 nodes
  • metric: NetworkOut, 50 lower, 500 upper breach limits

• can be tested using ab - Apache HTTP server benchmarking tool

  • ab -c 50 -n 50000 $URL (exact configs might differ based on application used, just giving a very basic example)

this should confirm machines are scaling up/down.

prerequisites

• s3-bucket nodejs-elastic-beanstalk to be present in the specified region (can be modified on the template/template.yml)
  • upload sources/google-nodejs.zip to that s3-bucket /
• export AWS_PROFILE AWS_REGION to your liking
• export STACK_NAME=your_preferred_stack_name
• export S3_BUCKET_CF_ARTIFACT=bucket_you_want_to_use_for_cloudformation_artifact_uploading (can just be same as nodejs-elastic-beanstalk)

---

initial-deploy

• then with ./menu.sh

1. aws cloudformation package
2. aws cloudformation deploy this should ideally create the whole environment
3. aws elasticbeanstalk describe-environments to see the URL (a bit basic, but should work)
4. optionally aws cloudformation describe-stack-events to see cloudformation stack events
5. application logs are on cloudwatch

---

updating

1. you got a new zip from developers?
2. upload the new zip to the bucket
3. adjust the S3Key on the template/template.yml (google-nodejs.zip)
4. re-package & re-deploy (should be creating a new version/seamless upgrade)
5. done