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AWS Cloud Formation deployment CLI

Project description

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Senza is a command line tool for generating and executing AWS Cloud Formation templates in a sane way. It supports Cloud Formation templates as YAML input and adds own ‘components’ on top. Components are predefined Cloud Formation snippets that are easy to configure and generate all the boilerplate JSON that is required by Cloud Formation.

Installation

$ sudo pip3 install --upgrade stups-senza

Usage

$ senza init my-definition.yaml # bootstrap a new app
$ senza create ./my-definition.yaml 1 1.0

Please read the STUPS documentation on Senza to learn more.

Senza Definition

# basic information for generating and executing this definition
SenzaInfo:
  StackName: kio
  OperatorTopicId: kio-operators
  Parameters:
      - ImageVersion:
          Description: "Docker image version of Kio."

# a list of senza components to apply to the definition
SenzaComponents:
  - Configuration:
      Type: Senza::StupsAutoConfiguration # auto-detect network setup
  # will create a launch configuration and auto scaling group with min/max=1
  - AppServer:
      Type: Senza::TaupageAutoScalingGroup
      InstanceType: t2.micro
      SecurityGroups: [app-kio] # can be either name or id ("sg-..")
      ElasticLoadBalancer: AppLoadBalancer
      TaupageConfig:
        runtime: Docker
        source: stups/kio:{{Arguments.ImageVersion}}
        ports:
          8080: 8080
        environment:
          PGSSLMODE: verify-full
          DB_SUBNAME: "//kio.example.eu-west-1.rds.amazonaws.com:5432/kio?ssl=true"
          DB_USER: kio
          DB_PASSWORD: aws:kms:abcdef1234567890abcdef=
  # creates an ELB entry and Route53 domains to this ELB
  - AppLoadBalancer:
      Type: Senza::WeightedDnsElasticLoadBalancer
      HTTPPort: 8080
      HealthCheckPath: /ui/
      SecurityGroups: [app-kio-lb]
      Scheme: internet-facing

# just plain Cloud Formation definitions are fully supported:
Outputs:
  URL:
    Description: "The ELB URL of the new Kio deployment."
    Value:
      "Fn::Join":
        - ""
        -
          - "http://"
          - "Fn::GetAtt":
              - AppLoadBalancer
              - DNSName

During evaluation, you can mustache templating with access to the rendered definition, including the SenzaInfo, SenzaComponents and Arguments key (containing all given arguments).

See the STUPS documentation on Senza for details.

Unit Tests

$ python3 setup.py test --cov-html=true

Releasing

$ ./release.sh <NEW-VERSION>

Project details


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