Delete CloudFormation stacks action

This action deletes all cloudformation xx/pr stacks in the provided region with the given name prefix + the stage suffix. The stage is transformed from the branch name (eg. #85-my-feature > xx85 / pr85). Production branch (master | main) branch is always ignored.

Make sure your CloudFormation Stacks are fully deletable (if autoDeleteBuckets=true also autoDeleteItems, etc.)

Usage

Inputs

stackNamePrefix

Required string The prefix of the stack names to delete.

waitForDeleteComplete

Optional boolean Whether the action should wait until the stack is completely deleted (status=DELETE_COMPLETE).

ignoreBranches

Optional JSON String Array branches to ignore (early exit, necessary since on-delete workflows do not support branch restrictions). Production branches (master | main) branch is always ignored.

Example workflow step config

- name: Configure AWS Credentials
  uses: aws-actions/configure-aws-credentials@v4
  with:
    role-to-assume: 'arn:aws:iam::{ACCOUNT_ID}:role/{ROLE_NAME}'
    aws-region: eu-central-1
- name: Delete Stacks
  uses: shiftcode/delete-cfn-stacks-action@v0.0.X
  with:
    stackNamePrefix: 'ch-website'
    waitForDeleteComplete: true
    # master & main are ignored by default
    ignoreBranches: '["#1-dev"]'

Hints

• If there are stacks in multiple regions: use both actions two times with their corresponding region.
• If working with assumedRoles and aws-actions/configure-aws-credentials@v1 the policy statement for the static iam user needs to have the actions "sts:AssumeRole AND sts:TagSession allowed on the role to assume. The Trust relationship of the assumed role needs to allow those actions for the assuming user.

Development

testing

To test the action locally: call index.js with env var INPUT_STACKNAMEPREFIX --> INPUT_STACKNAMEPREFIX="bag-covid19" node ./dist/index.js

new version

1. implement your changes
2. commit with npx commit
3. set tag git tag -a -m "my fancy release" v0.0.X
4. push with tags git push --follow-tags