timed-startup-and-shutdown.yaml

# this is a senza.yaml describing a Location Service Demo (LSD) backend server.
# use it as an example for scheduled shutdown and startup of your application
# instances in a well known crontab (http://en.wikipedia.org/wiki/Cron) manner.
# NOTE that Minimum: and Maximum: in your AppServer: section should conform to
# the uppper and lower bound of your ScaleDownAction and ScaleUpAction.

# search for NOTE within this document in order to navigate to the important spots

SenzaInfo:
  StackName: lsd
  Parameters:
    - ImageVersion:
        Description: "Docker image version of lsd."

SenzaComponents:

  # this basic configuration is required for the other components
  - Configuration:
      Type: Senza::StupsAutoConfiguration # auto-detect network setup

  # will create a launch configuration and auto scaling group with scaling triggers
  - AppServer:
      Type: Senza::TaupageAutoScalingGroup
      # NOTE to set Minimum and Maximum according to your ScaleUp- and ScaleDownAction
      Minimum: 0
      Maximum: 1
      InstanceType: t2.micro
      SecurityGroups:
        - app-lsd
      IamRoles:
        - app-lsd
      ElasticLoadBalancer: AppLoadBalancer
      AssociatePublicIpAddress: false # change for standalone deployment in default VPC
      TaupageConfig:
        application_version: "{{Arguments.ImageVersion}}"
        runtime: Docker
        # NOTE replace pierone.stups.zalan.do with your docker registry (if you are
        # not working at zalando ;-) and /mentoring/lsd with your real team/app path
        source: "pierone.stups.zalan.do/mentoring/lsd:{{Arguments.ImageVersion}}"
        health_check_path: /
        ports:
          8080: 9000
        # NOTE replace this mint_bucket value with your real mint bucket
        mint_bucket: "zalando-stups-mint-123456789012-eu-west-1"

  # creates an ELB entry and Route53 domains to this ELB
  - AppLoadBalancer:
      Type: Senza::WeightedDnsElasticLoadBalancer
      HTTPPort: 8080
      HealthCheckPath: /
      SecurityGroups:
        - app-lsd-lb
      Scheme: internet-facing

# NOTE this is the interesting part. per default, scale down to 0 instances (i.e., shut down)
# at 7pm UTC (which is 8pm GMT+1), scale up to 1 instance again at 7am UTC (which is 8am GMT+1),
# but only from monday till friday (1-5). adjust to your needs and keep in mind to configure a
# reasonable offset for CET and CEST; the below configuration for example will startup your 
# instances at 9am and shutdown at 9pm in central european summer, which might still be ok.

Resources:

  OfficeHourScaleDownAction:
      Type: AWS::AutoScaling::ScheduledAction
      Properties:
          AutoScalingGroupName:
              Ref: AppServer
          MinSize: 0
          MaxSize: 0
          Recurrence: "00 19 * * *"

  OfficeHourScaleUpAction:
      Type: AWS::AutoScaling::ScheduledAction
      Properties:
          AutoScalingGroupName: 
              Ref: AppServer
          MinSize: 1
          MaxSize: 1
          Recurrence: "00 07 * * 1-5"