openstack-blueprint.yaml

###########################################################
# This Blueprint installs the nodecellar application
# on an openstack cloud environment.
###########################################################

tosca_definitions_version: cloudify_dsl_1_0

imports:
  - http://www.getcloudify.org/spec/cloudify/3.3m3/types.yaml
  - http://www.getcloudify.org/spec/openstack-plugin/1.3m3/plugin.yaml
  - http://www.getcloudify.org/spec/diamond-plugin/1.3m3/plugin.yaml
  - types/nodecellar.yaml


#####################################################################################
# inputs section allows the user to use same
# blueprint for creating different deployments, each one
# with its own parameters.
# to specify deployment inputs run:
#   - cfy deployments create -b <blueprint_id> -d <deployment_id> -i inputs.json
#####################################################################################

inputs:

  image:
    description: >
      Image to be used when launching agent VM's

  flavor:
    description: >
      Flavor of the agent VM's

  agent_user:
    description: >
      User for connecting to agent VM's

node_types:

  ###########################################################
  # We define a type that inherits openstack's default
  # server, and adds monitoring capabillities on top of it.
  ###########################################################

  nodecellar.nodes.MonitoredServer:
    derived_from: cloudify.openstack.nodes.Server
    properties:
      cloudify_agent:
        default:
          user: { get_input: agent_user }
      server:
        default:
          image: { get_input: image }
          flavor: { get_input: flavor }
    interfaces:

      ###########################################################
      # We are infact telling cloudify to install a diamond
      # monitoring agent on the server.
      #
      # (see https://github.com/BrightcoveOS/Diamond)
      ###########################################################

      cloudify.interfaces.monitoring_agent:
          install:
            implementation: diamond.diamond_agent.tasks.install
            inputs:
              diamond_config:
                default:
                  interval: 1
          start: diamond.diamond_agent.tasks.start
          stop: diamond.diamond_agent.tasks.stop
          uninstall: diamond.diamond_agent.tasks.uninstall

      ###########################################################
      # Adding some collectors. These collectors are necessary
      # for the Cloudify UI to display the deafult metrics.
      ###########################################################

      cloudify.interfaces.monitoring:
          start:
            implementation: diamond.diamond_agent.tasks.add_collectors
            inputs:
              collectors_config:
                default:
                  CPUCollector: {}
                  MemoryCollector: {}
                  LoadAverageCollector: {}
                  DiskUsageCollector:
                    config:
                      devices: x?vd[a-z]+[0-9]*$
                  NetworkCollector: {}

node_templates:

  mongod_host:
    type: nodecellar.nodes.MonitoredServer
    relationships:

      ###########################################################
      # Attaching the mongo security group to the mongo host
      ###########################################################

      - target: mongod_security_group
        type: cloudify.openstack.server_connected_to_security_group

  nodejs_host:
    type: nodecellar.nodes.MonitoredServer
    relationships:

      ###########################################################
      # Attaching a floating ip to the nodejs host
      ###########################################################

      - target: nodecellar_floatingip
        type: cloudify.openstack.server_connected_to_floating_ip

      ###########################################################
      # Attaching the nodecellar security group to
      # the nodecellar host
      ###########################################################

      - target: nodecellar_security_group
        type: cloudify.openstack.server_connected_to_security_group

  mongod:
    type: nodecellar.nodes.MongoDatabase
    properties:
      port: 27017
    interfaces:
      cloudify.interfaces.lifecycle:

        ###########################################################
        # The MongoDBCollector depends on a python library called
        # pymongo. We install this library in the 'configure'
        # lifecycle hook of this node.
        ###########################################################

        configure: scripts/mongo/install-pymongo.sh

      ###########################################################
      # Notice that this node defines an additional collector
      # to collect data on the MongoDB.
      ###########################################################

      cloudify.interfaces.monitoring:
          start:
            implementation: diamond.diamond_agent.tasks.add_collectors
            inputs:
              collectors_config:
                MongoDBCollector:
                  config:
                    hosts: "localhost:27017"
    relationships:
      - type: cloudify.relationships.contained_in
        target: mongod_host

  nodejs:
    type: nodecellar.nodes.NodeJSServer
    relationships:
      - type: cloudify.relationships.contained_in
        target: nodejs_host

  nodecellar:
    type: nodecellar.nodes.NodecellarApplicationModule
    properties:
      port: 8080
    relationships:

      ################################
      # Setting the mongo connection
      ################################

      - type: node_connected_to_mongo
        target: mongod

      ################################
      # Setting the nodejs connection
      ################################

      - type: node_contained_in_nodejs
        target: nodejs

  ###########################################################
  # A security group to enable access to the nodejs host
  # using the port of the nodecellar application.
  #
  # This security group will be attached to the nodejs_host
  ###########################################################

  nodecellar_security_group:
    type: cloudify.openstack.nodes.SecurityGroup
    properties:
      security_group:
        name: nodecellar_security_group
      rules:
        - remote_ip_prefix: 0.0.0.0/0
          port: { get_property: [ nodecellar, port ] }

  ###########################################################
  # A security group to enable access to the mongo host
  # using the port of the mongo node.
  #
  # We need this so that the nodecellar application can
  # comminicate with MongoDB, since they are running on
  # different hosts.
  ###########################################################

  mongod_security_group:
    type: cloudify.openstack.nodes.SecurityGroup
    properties:
      security_group:
        name: mongod_security_group
      rules:
        - remote_ip_prefix: 0.0.0.0/0
          port: { get_property: [ mongod, port ] }
        - remote_ip_prefix: 0.0.0.0/0
          port: 28017

  ###########################################################
  # A floating ip to be attached to the nodejs host, since
  # eventually we want to be able to access it
  # from any machine, on any network.
  ###########################################################

  nodecellar_floatingip:
    type: cloudify.openstack.nodes.FloatingIP

###########################################################
# This outputs section exposes the application endpoint.
# You can access it by running:
#   - cfy deployments -d <deployment_id> outputs
###########################################################

outputs:
  endpoint:
    description: Web application endpoint
    value:
      ip_address: { get_attribute: [ nodecellar_floatingip, floating_ip_address ] }
      port: { get_property: [ nodecellar, port ] }