Puppet Class: watcher::api

Inherits:
watcher::params
Defined in:
manifests/api.pp

Overview

Class: watcher::api

Configure Watcher API service.

Parameters:

All options are optional unless specified otherwise. All options defaults to $facts and the default values from the service are used.

Watcher configuration

package_ensure

(Optional)Ensure state of the openstackclient package. Defaults to ‘present’.

enabled

(Optional) Whether the watcher api service will be run Defaults to true

manage_service

(Optional) Whether the service should be managed by Puppet. Defaults to true.

port

(Optional) The port on which the watcher API will listen. Defaults to $facts.

max_limit

(Optional)The maximum number of items returned in a single response from a collection resource. Defaults to $facts.

bind_host

(Optional) Listen IP for the watcher API server. Defaults to $facts.

workers

(Optional) Number of worker processors to for the Watcher API service. Defaults to $facts.

enable_ssl_api

(Optional) Enable the integrated stand-alone API to service requests via HTTPS instead of HTTP. If there is a front-end service performing HTTPS offloading from the service, this option should be False; note, you will want to change public API endpoint to represent SSL termination URL with ‘public_endpoint’ option. Defaults to $facts.

service_name

(optional) Name of the service that will be providing the server functionality of watcher-api. If the value is ‘httpd’, this means watcher-api will be a web service, and you must use another class to configure that web service. For example, use class { ‘watcher::wsgi::apache’…} to make watcher-api be a web app using apache mod_wsgi. Defaults to ‘$::watcher::params::api_service_name’

DB management

create_db_schema

(Optional) Run watcher-db-manage create_schema on api nodes after installing the package. Defaults to false

upgrade_db

(Optional) Run watcher-db-manage upgrade on api nodes after installing the package. Defaults to false

auth_strategy

(optional) Type of authentication to be used. Defaults to ‘keystone’

Parameters:

  • package_ensure (Any) (defaults to: 'present')
  • enabled (Boolean) (defaults to: true)
  • manage_service (Boolean) (defaults to: true)
  • port (Any) (defaults to: $facts['os_service_default'])
  • max_limit (Any) (defaults to: $facts['os_service_default'])
  • bind_host (Any) (defaults to: $facts['os_service_default'])
  • workers (Any) (defaults to: $facts['os_workers'])
  • enable_ssl_api (Any) (defaults to: $facts['os_service_default'])
  • service_name (Any) (defaults to: $::watcher::params::api_service_name)
  • create_db_schema (Boolean) (defaults to: false)
  • upgrade_db (Boolean) (defaults to: false)
  • auth_strategy (Any) (defaults to: 'keystone') 


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# File 'manifests/api.pp', line 74

class watcher::api (
  $package_ensure           = 'present',
  Boolean $enabled          = true,
  Boolean $manage_service   = true,
  $port                     = $facts['os_service_default'],
  $max_limit                = $facts['os_service_default'],
  $bind_host                = $facts['os_service_default'],
  $workers                  = $facts['os_workers'],
  $enable_ssl_api           = $facts['os_service_default'],
  $service_name             = $::watcher::params::api_service_name,
  Boolean $create_db_schema = false,
  Boolean $upgrade_db       = false,
  $auth_strategy            = 'keystone',
) inherits watcher::params {

  include watcher::policy
  include watcher::deps

  if $auth_strategy == 'keystone' {
    include watcher::keystone::authtoken
  }

  package { 'watcher-api':
    ensure => $package_ensure,
    name   => $::watcher::params::api_package_name,
    tag    => ['openstack', 'watcher-package'],
  }

  if $create_db_schema {
    include watcher::db::create_schema
  }

  if $upgrade_db {
    include watcher::db::upgrade
  }

  if $manage_service {
    if $enabled {
      $service_ensure = 'running'
    } else {
      $service_ensure = 'stopped'
    }

    if $service_name == $::watcher::params::api_service_name {
      # NOTE(danpawlik) Watcher doesn't support db_sync command.
      service { 'watcher-api':
        ensure     => $service_ensure,
        name       => $::watcher::params::api_service_name,
        enable     => $enabled,
        hasstatus  => true,
        hasrestart => true,
        tag        => [ 'watcher-service',
                        'watcher-db-manage-create_schema',
                        'watcher-db-manage-upgrade'],
      }
    } elsif $service_name == 'httpd' {
      service { 'watcher-api':
        ensure => 'stopped',
        name   => $::watcher::params::api_service_name,
        enable => false,
        tag    => [ 'watcher-service',
                    'watcher-db-manage-create_schema',
                    'watcher-db-manage-upgrade'],
      }

      # we need to make sure watcher-api/eventlet is stopped before trying to start apache
      Service['watcher-api'] -> Service[$service_name]
    } else {
      fail("Invalid service_name. Either watcher/openstack-watcher-api for running \
as a standalone service, or httpd for being run by a httpd server")
    }
  }

  watcher_config {
    'api/port':           value => $port;
    'api/max_limit':      value => $max_limit;
    'api/host':           value => $bind_host;
    'api/workers':        value => $workers;
    'api/enable_ssl_api': value => $enable_ssl_api;
  }
}