tiered.yml

#
#  Tiered provisioning example
#
#  Start up infrakit:
#
#  export INFRAKIT_SELECTOR_TIERED_PLUGINS='spot/compute;ondemand/compute'
#
#  In the env variable above we set the ordering of the plugins...
#  First, we try spot/compute then ondemand/compute.  We will use the 'simulator'
#  kind to simulate the different types of instances by starting the plugin at
#  specific socket addresses: one as ondemand and the other as spot.
#  In the infrakit CLI you will see ondemand/compute and spot/compute as available
#  commands.  These will allow you to directly query the instance plugins.
#
#  infrakit plugin start manager group vanilla simulator:ondemand simulator:spot selector/tiered --log 5 --log-stack
#
#  * Note on the use of env variable...  when we support multiple plugins in a single
#  spec and automatic activation, you will create sections of spec/metadata/Options
#  to actually set the options for the tiered selector.
#
#  Commit this file:
#
#  infrakit group controller commit -y ./tiered.yml
#
#  After a while, you can verify that 3 are created in spot/compute and 2 in ondemand/compute
#  infrakit spot/compute describe
#  infrakit ondemand/compute describe
#
#
#
kind: group
metadata:
    name: workers
properties:
    Allocation:
      Size: 5
    Flavor:
      Plugin: vanilla
      Properties:
        Init:
          - sudo apt-get update -y
          - sudo apt-get install wget curl
          - wget -qO- https://get.docker.com | sh
        Tags:
          custom.tag1 : tutorial
          custom.tag2 : single-instance
          custom.tag3 : by-group

    Instance:

      # here we reference the tiered selector at the socket location, selector.
      Plugin: selector/tiered
      Properties:

        spot/compute:
          # This is a special property that the simulator understands to limit
          # the number of instances it can provision.  So for cluster size > 3
          # we expect to see the ondemand/compute instances getting added.
          Cap: 3
          instanceType: small
          bid: 0.02
          labels:
            project: infrakit
            billing: spot

        # Properties for the ondemand/compute instances.  The section after the
        # name of the plugin (ondemand/compute) is the properties blob to be fed
        # to the plugin.
        ondemand/compute:
          instanceType: small
          labels:
            project: infrakit
            billing: ondemand