stacker

Easily assemble CloudFormation stacks with interdependencies.

Usage

$ stacker -h
Commands:
  stacker diff [STACK_NAME]    # Show outstanding stack differences
  stacker dump [STACK_NAME]    # Download stack template
  stacker fmt [STACK_NAME]     # Re-format template JSON
  stacker help [COMMAND]       # Describe available commands or one specific command
  stacker init [PATH]          # Create stacker project directories
  stacker list                 # List stacks
  stacker show STACK_NAME      # Show details of a stack
  stacker status [STACK_NAME]  # Show stack status
  stacker update [STACK_NAME]  # Create or update stack

Options:
  [--path=project path]        # Default: STACKER_PATH or './'
  [--region=AWS region name]   # Default: STACKER_REGION or 'us-east-1'
  [--allow-destructive=allow destructive updates], [--no-allow-destructive]

Examples

Project Structure

acme-cloudformation
|-- regions
|    |-- us-east-1.yml
|    `-- us-west-1.yml
`-- templates
     |-- API.json
     |-- Database.json
     |-- PrivateSubnets.json
     |-- PublicSubnets.json
     `-- VPC.json

Region File

---
defaults:
  parameters:
    AmiImageId: 'ami-1234abcd'
    CidrBlock: '10.0'
    VPCId:
      Stack: VPC
      Output: VPCId # depend on an output from another stack
    InternetGateway:
      Stack: VPC
      Output: InternetGateway
    PublicSubnets:
      - Stack: PublicSubnetA
        Output: SubnetId
      - Stack: PublicSubnetB
        Output: SubnetId
      - Stack: PublicSubnetC
        Output: SubnetId

stacks:
  - name: VPC

  - name: PublicSubnetA
    template_name: PublicSubnet
    parameters:
      AZ: us-east-1a

  - name: PublicSubnetB
    template_name: PublicSubnet
    parameters:
      AZ: us-east-1b

  - name: PublicSubnetC
    template_name: PublicSubnet
    parameters:
      AZ: us-east-1c

  - name: PrivateSubnets

  - name: API
    capabilities: 'CAPABILITY_IAM' # give permission to create IAM resources
    parameters:
      ChefRunList: 'role[api]'

  - name: DBPrimary
    parameters:
      ChefRunList: 'role[db-primary]'
      InstanceImageId: 'ami-d3adb33f'
      SubnetId:
        Stack: PublicSubnetA
        Output: SubnetId
    template_name: Database # use template with a different name

  - name: DBReplica
    parameters:
      ChefRunList: 'role[db-replica]'
    template_name: Database

Authors

Martin Cozzi (martin@cotap.com) and Evan Owen (evan@cotap.com)

License

(The MIT License)

© 2016 Cotap, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.