Merge "Add IP to HAProxy kind=Optional constraint"
[apex-tripleo-heat-templates.git] / puppet / manifests / overcloud_controller_pacemaker.pp
index a7aa40c..feabf6a 100644 (file)
@@ -37,6 +37,8 @@ if $::hostname == downcase(hiera('bootstrap_nodeid')) {
   $sync_db = false
 }
 
+$enable_fencing = str2bool(hiera('enable_fencing', 'false')) and hiera('step') >= 5
+
 # When to start and enable services which haven't been Pacemakerized
 # FIXME: remove when we start all OpenStack services using Pacemaker
 # (occurences of this variable will be gradually replaced with false)
@@ -56,6 +58,7 @@ if hiera('step') >= 1 {
     controller_hosts       => $controller_node_ips,
     controller_hosts_names => $controller_node_names,
     manage_vip             => false,
+    mysql_clustercheck     => true,
     haproxy_service_manage => false,
   }
 
@@ -71,7 +74,13 @@ if hiera('step') >= 1 {
     setup_cluster   => $pacemaker_master,
   }
   class { '::pacemaker::stonith':
-    disable => true,
+    disable => !$enable_fencing,
+  }
+  if $enable_fencing {
+    include tripleo::fencing
+
+    # enable stonith after all fencing devices have been created
+    Class['tripleo::fencing'] -> Class['pacemaker::stonith']
   }
 
   # Only configure RabbitMQ in this step, don't start it yet to
@@ -96,14 +105,22 @@ if hiera('step') >= 1 {
 
   if downcase(hiera('ceilometer_backend')) == 'mongodb' {
     include ::mongodb::globals
-    # FIXME: replace with service_manage => false on ::mongodb::server
-    # when this is merged: https://github.com/puppetlabs/pupp etlabs-mongodb/pull/198
     class { '::mongodb::server' :
-      service_ensure => undef,
-      service_enable => false,
+      service_manage => false,
     }
   }
 
+  # Memcached
+  class {'::memcached' :
+    service_manage => false,
+  }
+
+  # Redis
+  class { '::redis' :
+    service_manage => false,
+    notify_service => false,
+  }
+
   # Galera
   if str2bool(hiera('enable_galera', 'true')) {
     $mysql_config_file = '/etc/my.cnf.d/galera.cnf'
@@ -122,7 +139,7 @@ if hiera('step') >= 1 {
       'innodb_locks_unsafe_for_binlog'=> '1',
       'query_cache_size'              => '0',
       'query_cache_type'              => '0',
-      'bind-address'                  => hiera('controller_host'),
+      'bind-address'                  => hiera('mysql_bind_host'),
       'max_connections'               => '1024',
       'open_files_limit'              => '-1',
       'wsrep_provider'                => '/usr/lib64/galera/libgalera_smm.so',
@@ -148,23 +165,173 @@ if hiera('step') >= 1 {
     config_file        => $mysql_config_file,
     override_options   => $mysqld_options,
     service_manage     => false,
+    service_enabled    => false,
   }
 
 }
 
 if hiera('step') >= 2 {
 
+  # NOTE(gfidente): the following vars are needed on all nodes so they
+  # need to stay out of pacemaker_master conditional
+  $mongo_node_ips_with_port = suffix(hiera('mongo_node_ips'), ':27017')
+  $mongodb_replset = hiera('mongodb::server::replset')
+
   if $pacemaker_master {
+
+    # FIXME: we should not have to access tripleo::loadbalancer class
+    # parameters here to configure pacemaker VIPs. The configuration
+    # of pacemaker VIPs could move into puppet-tripleo or we should
+    # make use of less specific hiera parameters here for the settings.
+    pacemaker::resource::service { 'haproxy':
+      clone_params => true,
+    }
+
     $control_vip = hiera('tripleo::loadbalancer::controller_virtual_ip')
     pacemaker::resource::ip { 'control_vip':
       ip_address => $control_vip,
     }
+    pacemaker::constraint::base { 'control_vip-then-haproxy':
+      constraint_type   => 'order',
+      first_resource    => "ip-${control_vip}",
+      second_resource   => 'haproxy-clone',
+      first_action      => 'start',
+      second_action     => 'start',
+      constraint_params => 'kind=Optional',
+      require => [Pacemaker::Resource::Service['haproxy'],
+                  Pacemaker::Resource::Ip['control_vip']],
+    }
+    pacemaker::constraint::colocation { 'control_vip-with-haproxy':
+      source  => "ip-${control_vip}",
+      target  => 'haproxy-clone',
+      score   => 'INFINITY',
+      require => [Pacemaker::Resource::Service['haproxy'],
+                  Pacemaker::Resource::Ip['control_vip']],
+    }
+
     $public_vip = hiera('tripleo::loadbalancer::public_virtual_ip')
-    pacemaker::resource::ip { 'public_vip':
-      ip_address => $public_vip,
+    if $public_vip and $public_vip != $control_vip {
+      pacemaker::resource::ip { 'public_vip':
+        ip_address => $public_vip,
+      }
+      pacemaker::constraint::base { 'public_vip-then-haproxy':
+        constraint_type   => 'order',
+        first_resource    => "ip-${public_vip}",
+        second_resource   => 'haproxy-clone',
+        first_action      => 'start',
+        second_action     => 'start',
+        constraint_params => 'kind=Optional',
+        require => [Pacemaker::Resource::Service['haproxy'],
+                    Pacemaker::Resource::Ip['public_vip']],
+      }
+      pacemaker::constraint::colocation { 'public_vip-with-haproxy':
+        source  => "ip-${public_vip}",
+        target  => 'haproxy-clone',
+        score   => 'INFINITY',
+        require => [Pacemaker::Resource::Service['haproxy'],
+                    Pacemaker::Resource::Ip['public_vip']],
+      }
     }
-    pacemaker::resource::service { 'haproxy':
+
+    $redis_vip = hiera('redis_vip')
+    if $redis_vip and $redis_vip != $control_vip {
+      pacemaker::resource::ip { 'redis_vip':
+        ip_address => $redis_vip,
+      }
+      pacemaker::constraint::base { 'redis_vip-then-haproxy':
+        constraint_type   => 'order',
+        first_resource    => "ip-${redis_vip}",
+        second_resource   => 'haproxy-clone',
+        first_action      => 'start',
+        second_action     => 'start',
+        constraint_params => 'kind=Optional',
+        require => [Pacemaker::Resource::Service['haproxy'],
+                    Pacemaker::Resource::Ip['redis_vip']],
+      }
+      pacemaker::constraint::colocation { 'redis_vip-with-haproxy':
+        source  => "ip-${redis_vip}",
+        target  => 'haproxy-clone',
+        score   => 'INFINITY',
+        require => [Pacemaker::Resource::Service['haproxy'],
+                    Pacemaker::Resource::Ip['redis_vip']],
+      }
+    }
+
+    $internal_api_vip = hiera('tripleo::loadbalancer::internal_api_virtual_ip')
+    if $internal_api_vip and $internal_api_vip != $control_vip {
+      pacemaker::resource::ip { 'internal_api_vip':
+        ip_address => $internal_api_vip,
+      }
+      pacemaker::constraint::base { 'internal_api_vip-then-haproxy':
+        constraint_type   => 'order',
+        first_resource    => "ip-${internal_api_vip}",
+        second_resource   => 'haproxy-clone',
+        first_action      => 'start',
+        second_action     => 'start',
+        constraint_params => 'kind=Optional',
+        require => [Pacemaker::Resource::Service['haproxy'],
+                    Pacemaker::Resource::Ip['internal_api_vip']],
+      }
+      pacemaker::constraint::colocation { 'internal_api_vip-with-haproxy':
+        source  => "ip-${internal_api_vip}",
+        target  => 'haproxy-clone',
+        score   => 'INFINITY',
+        require => [Pacemaker::Resource::Service['haproxy'],
+                    Pacemaker::Resource::Ip['internal_api_vip']],
+      }
+    }
+
+    $storage_vip = hiera('tripleo::loadbalancer::storage_virtual_ip')
+    if $storage_vip and $storage_vip != $control_vip {
+      pacemaker::resource::ip { 'storage_vip':
+        ip_address => $storage_vip,
+      }
+      pacemaker::constraint::base { 'storage_vip-then-haproxy':
+        constraint_type   => 'order',
+        first_resource    => "ip-${storage_vip}",
+        second_resource   => 'haproxy-clone',
+        first_action      => 'start',
+        second_action     => 'start',
+        constraint_params => 'kind=Optional',
+        require => [Pacemaker::Resource::Service['haproxy'],
+                    Pacemaker::Resource::Ip['storage_vip']],
+      }
+      pacemaker::constraint::colocation { 'storage_vip-with-haproxy':
+        source  => "ip-${storage_vip}",
+        target  => 'haproxy-clone',
+        score   => 'INFINITY',
+        require => [Pacemaker::Resource::Service['haproxy'],
+                    Pacemaker::Resource::Ip['storage_vip']],
+      }
+    }
+
+    $storage_mgmt_vip = hiera('tripleo::loadbalancer::storage_mgmt_virtual_ip')
+    if $storage_mgmt_vip and $storage_mgmt_vip != $control_vip {
+      pacemaker::resource::ip { 'storage_mgmt_vip':
+        ip_address => $storage_mgmt_vip,
+      }
+      pacemaker::constraint::base { 'storage_mgmt_vip-then-haproxy':
+        constraint_type   => 'order',
+        first_resource    => "ip-${storage_mgmt_vip}",
+        second_resource   => 'haproxy-clone',
+        first_action      => 'start',
+        second_action     => 'start',
+        constraint_params => 'kind=Optional',
+        require => [Pacemaker::Resource::Service['haproxy'],
+                    Pacemaker::Resource::Ip['storage_mgmt_vip']],
+      }
+      pacemaker::constraint::colocation { 'storage_mgmt_vip-with-haproxy':
+        source  => "ip-${storage_mgmt_vip}",
+        target  => 'haproxy-clone',
+        score   => 'INFINITY',
+        require => [Pacemaker::Resource::Service['haproxy'],
+                    Pacemaker::Resource::Ip['storage_mgmt_vip']],
+      }
+    }
+
+    pacemaker::resource::service { $::memcached::params::service_name :
       clone_params => true,
+      require      => Class['::memcached'],
     }
 
     pacemaker::resource::ocf { 'rabbitmq':
@@ -179,56 +346,37 @@ if hiera('step') >= 2 {
         op_params    => 'start timeout=120s',
         clone_params => true,
         require      => Class['::mongodb::server'],
-        before       => Exec['mongodb-ready'],
       }
       # NOTE (spredzy) : The replset can only be run
       # once all the nodes have joined the cluster.
-      $mongo_node_ips = split(hiera('mongo_node_ips'), ',')
-      $mongo_node_ips_with_port = suffix($mongo_node_ips, ':27017')
-      $mongo_node_string = join($mongo_node_ips_with_port, ',')
-      $mongodb_replset = hiera('mongodb::server::replset')
-      $mongodb_cluster_ready_command = join(suffix(prefix($mongo_node_ips, '/bin/nc -w1 '), ' 27017 < /dev/null'), ' && ')
-      exec { 'mongodb-ready' :
-        command   => $mongodb_cluster_ready_command,
-        timeout   => 30,
-        tries     => 180,
-        try_sleep => 10,
+      mongodb_conn_validator { $mongo_node_ips_with_port :
+        timeout => '600',
+        require => Pacemaker::Resource::Service[$::mongodb::params::service_name],
+        before  => Mongodb_replset[$mongodb_replset],
       }
       mongodb_replset { $mongodb_replset :
         members => $mongo_node_ips_with_port,
-        require => Exec['mongodb-ready'],
       }
     }
 
     pacemaker::resource::ocf { 'galera' :
       ocf_agent_name  => 'heartbeat:galera',
-      op_params       => 'promote timeout=300s on-fail=block --master',
+      op_params       => 'promote timeout=300s on-fail=block',
+      master_params   => '',
       meta_params     => "master-max=${galera_nodes_count} ordered=true",
       resource_params => "additional_parameters='--open-files-limit=16384' enable_creation=true wsrep_cluster_address='gcomm://${galera_nodes}'",
       require         => Class['::mysql::server'],
       before          => Exec['galera-ready'],
     }
-  }
-
-  # Redis
-  $redis_node_ips = split(hiera('redis_node_ips'), ',')
-  $redis_master_hostname = downcase(hiera('bootstrap_nodeid'))
 
-  if $redis_master_hostname == $::hostname {
-    $slaveof = undef
-  } else {
-    $slaveof = "${redis_master_hostname} 6379"
-  }
-  class {'::redis' :
-    slaveof => $slaveof,
-  }
-
-  if count($redis_node_ips) > 1 {
-    Class['::tripleo::redis_notification'] -> Service['redis-sentinel']
-    include ::redis::sentinel
-    class {'::tripleo::redis_notification' :
-      haproxy_monitor_ip => hiera('tripleo::loadbalancer::controller_virtual_ip'),
+    pacemaker::resource::ocf { 'redis':
+      ocf_agent_name  => 'heartbeat:redis',
+      master_params   => '',
+      meta_params     => 'notify=true ordered=true interleave=true',
+      resource_params => 'wait_last_known_master=true',
+      require         => Class['::redis'],
     }
+
   }
 
   exec { 'galera-ready' :
@@ -263,7 +411,7 @@ MYSQL_HOST=localhost\n",
   # Create all the database schemas
   # Example DSN format: mysql://user:password@host/dbname
   if $sync_db {
-    $allowed_hosts = ['%',hiera('controller_host')]
+    $allowed_hosts = ['%',hiera('mysql_bind_host')]
     $keystone_dsn = split(hiera('keystone::database_connection'), '[@:/?]')
     class { 'keystone::db::mysql':
       user          => $keystone_dsn[3],
@@ -350,8 +498,6 @@ MYSQL_HOST=localhost\n",
     include ::ceph::profile::osd
   }
 
-  # Memcached
-  include ::memcached
 
 } #END STEP 2
 
@@ -417,52 +563,54 @@ if hiera('step') >= 3 {
   }
   include join(['::glance::backend::', $glance_backend])
 
-  class { 'nova':
-    glance_api_servers     => join([hiera('glance_protocol'), '://', hiera('controller_virtual_ip'), ':', hiera('glance_port')]),
-  }
+  include ::nova
 
   class { '::nova::api' :
     sync_db => $sync_db,
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::nova::cert' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::nova::conductor' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::nova::consoleauth' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::nova::vncproxy' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::nova::scheduler' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   include ::nova::network::neutron
 
+  # Neutron class definitions
   include ::neutron
   class { '::neutron::server' :
     sync_db => $sync_db,
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::neutron::agents::dhcp' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::neutron::agents::l3' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
+  }
+  class { 'neutron::agents::metadata':
+    manage_service => false,
+    enabled => false,
   }
-
   file { '/etc/neutron/dnsmasq-neutron.conf':
     content => hiera('neutron_dnsmasq_options'),
     owner   => 'neutron',
@@ -470,31 +618,17 @@ if hiera('step') >= 3 {
     notify  => Service['neutron-dhcp-service'],
     require => Package['neutron'],
   }
-
   class { 'neutron::plugins::ml2':
-    flat_networks        => split(hiera('neutron_flat_networks'), ','),
+    flat_networks   => split(hiera('neutron_flat_networks'), ','),
     tenant_network_types => [hiera('neutron_tenant_network_type')],
-    type_drivers         => [hiera('neutron_tenant_network_type')],
   }
-
   class { 'neutron::agents::ml2::ovs':
-    # manage_service   => $non_pcmk_start,  -- not implemented
-    enabled          => $non_pcmk_start,
+    # manage_service   => false # not implemented
+    enabled          => false,
     bridge_mappings  => split(hiera('neutron_bridge_mappings'), ','),
     tunnel_types     => split(hiera('neutron_tunnel_types'), ','),
   }
 
-  class { 'neutron::agents::metadata':
-    manage_service   => $non_pcmk_start,
-    enabled          => $non_pcmk_start,
-    auth_url => join(['http://', hiera('controller_virtual_ip'), ':35357/v2.0']),
-  }
-
-  Service['neutron-server'] -> Service['neutron-dhcp-service']
-  Service['neutron-server'] -> Service['neutron-l3']
-  Service['neutron-server'] -> Service['neutron-ovs-agent-service']
-  Service['neutron-server'] -> Service['neutron-metadata']
-
   include ::cinder
   class { '::cinder::api':
     sync_db => $sync_db,
@@ -551,7 +685,23 @@ if hiera('step') >= 3 {
     }
   }
 
-  $cinder_enabled_backends = delete_undef_values([$cinder_iscsi_backend, $cinder_rbd_backend])
+  if hiera('cinder_enable_netapp_backend', false) {
+    $cinder_netapp_backend = hiera('cinder::backend::netapp::title')
+
+    cinder_config {
+      "${cinder_netapp_backend}/host": value => 'hostgroup';
+    }
+
+    if hiera('cinder_netapp_nfs_shares', undef) {
+      $cinder_netapp_nfs_shares = split(hiera('cinder_netapp_nfs_shares', undef), ',')
+    }
+
+    cinder::backend::netapp { $cinder_netapp_backend :
+      nfs_shares => $cinder_netapp_nfs_shares,
+    }
+  }
+
+  $cinder_enabled_backends = delete_undef_values([$cinder_iscsi_backend, $cinder_rbd_backend, $cinder_netapp_backend])
   class { '::cinder::backends' :
     enabled_backends => $cinder_enabled_backends,
   }
@@ -610,42 +760,41 @@ if hiera('step') >= 3 {
       $ceilometer_database_connection = hiera('ceilometer_mysql_conn_string')
     }
     default : {
+      $mongo_node_string = join($mongo_node_ips_with_port, ',')
       $ceilometer_database_connection = "mongodb://${mongo_node_string}/ceilometer?replicaSet=${mongodb_replset}"
     }
   }
   include ::ceilometer
   class { '::ceilometer::api' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::ceilometer::agent::notification' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::ceilometer::agent::central' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::ceilometer::alarm::notifier' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::ceilometer::alarm::evaluator' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::ceilometer::collector' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   include ::ceilometer::expirer
   class { '::ceilometer::db' :
     database_connection => $ceilometer_database_connection,
     sync_db             => $sync_db,
   }
-  class { 'ceilometer::agent::auth':
-    auth_url => join(['http://', hiera('controller_virtual_ip'), ':5000/v2.0']),
-  }
+  include ceilometer::agent::auth
 
   Cron <| title == 'ceilometer-expirer' |> { command => "sleep $((\$(od -A n -t d -N 3 /dev/urandom) % 86400)) && ${::ceilometer::params::expirer_command}" }
 
@@ -654,27 +803,34 @@ if hiera('step') >= 3 {
     sync_db => $sync_db,
   }
   class { '::heat::api' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::heat::api_cfn' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::heat::api_cloudwatch' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
   class { '::heat::engine' :
-    manage_service => $non_pcmk_start,
-    enabled => $non_pcmk_start,
+    manage_service => false,
+    enabled => false,
   }
 
-  # Horizon
-  $vhost_params = { add_listen => false }
+  # httpd/apache and horizon
+  # NOTE(gfidente): server-status can be consumed by the pacemaker resource agent
+  include ::apache
+  include ::apache::mod::status
+  $vhost_params = {
+    add_listen => false,
+    priority   => 10,
+  }
   class { 'horizon':
-    cache_server_ip    => split(hiera('memcache_node_ips', '127.0.0.1'), ','),
+    cache_server_ip    => hiera('memcache_node_ips', '127.0.0.1'),
     vhost_extra_params => $vhost_params,
+    server_aliases     => $::hostname,
   }
 
   $snmpd_user = hiera('snmpd_readonly_user_name')
@@ -700,12 +856,22 @@ if hiera('step') >= 4 {
     # Cinder
     pacemaker::resource::service { $::cinder::params::api_service :
       clone_params => "interleave=true",
+      require      => Pacemaker::Resource::Service[$::keystone::params::service_name],
     }
     pacemaker::resource::service { $::cinder::params::scheduler_service :
       clone_params => "interleave=true",
     }
     pacemaker::resource::service { $::cinder::params::volume_service : }
 
+    pacemaker::constraint::base { 'keystone-then-cinder-api-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::keystone::params::service_name}-clone",
+      second_resource => "${::cinder::params::api_service}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::cinder::params::api_service],
+                          Pacemaker::Resource::Service[$::keystone::params::service_name]],
+    }
     pacemaker::constraint::base { 'cinder-api-then-cinder-scheduler-constraint':
       constraint_type => "order",
       first_resource => "${::cinder::params::api_service}-clone",
@@ -742,11 +908,21 @@ if hiera('step') >= 4 {
     # Glance
     pacemaker::resource::service { $::glance::params::registry_service_name :
       clone_params => "interleave=true",
+      require      => Pacemaker::Resource::Service[$::keystone::params::service_name],
     }
     pacemaker::resource::service { $::glance::params::api_service_name :
       clone_params => "interleave=true",
     }
 
+    pacemaker::constraint::base { 'keystone-then-glance-registry-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::keystone::params::service_name}-clone",
+      second_resource => "${::glance::params::registry_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::glance::params::registry_service_name],
+                          Pacemaker::Resource::Service[$::keystone::params::service_name]],
+    }
     pacemaker::constraint::base { 'glance-registry-then-glance-api-constraint':
       constraint_type => "order",
       first_resource  => "${::glance::params::registry_service_name}-clone",
@@ -756,13 +932,491 @@ if hiera('step') >= 4 {
       require => [Pacemaker::Resource::Service[$::glance::params::registry_service_name],
                   Pacemaker::Resource::Service[$::glance::params::api_service_name]],
     }
-    pacemaker::constraint::colocation { 'glance-registry-with-glance-api-colocation':
-      source  => "${::glance::params::registry_service_name}-clone",
-      target  => "${::glance::params::api_service_name}-clone",
+    pacemaker::constraint::colocation { 'glance-api-with-glance-registry-colocation':
+      source  => "${::glance::params::api_service_name}-clone",
+      target  => "${::glance::params::registry_service_name}-clone",
       score   => "INFINITY",
       require => [Pacemaker::Resource::Service[$::glance::params::registry_service_name],
                   Pacemaker::Resource::Service[$::glance::params::api_service_name]],
     }
+
+    # Neutron
+    # NOTE(gfidente): Neutron will try to populate the database with some data
+    # as soon as neutron-server is started; to avoid races we want to make this
+    # happen only on one node, before normal Pacemaker initialization
+    # https://bugzilla.redhat.com/show_bug.cgi?id=1233061
+    exec { 'neutron-server-start-wait-stop' :
+      command   => "systemctl start neutron-server && \
+                    sleep 5s && \
+                    systemctl stop neutron-server",
+      path      => ["/usr/bin", "/usr/sbin"],
+    } ->
+    pacemaker::resource::service { $::neutron::params::server_service:
+      op_params => "start timeout=90",
+      clone_params   => "interleave=true",
+      require => Pacemaker::Resource::Service[$::keystone::params::service_name]
+    }
+    pacemaker::resource::service { $::neutron::params::l3_agent_service:
+      clone_params   => "interleave=true",
+    }
+    pacemaker::resource::service { $::neutron::params::dhcp_agent_service:
+      clone_params   => "interleave=true",
+    }
+    pacemaker::resource::service { $::neutron::params::ovs_agent_service:
+      clone_params => "interleave=true",
+    }
+    pacemaker::resource::service { $::neutron::params::metadata_agent_service:
+      clone_params => "interleave=true",
+    }
+    pacemaker::resource::ocf { $::neutron::params::ovs_cleanup_service:
+      ocf_agent_name => "neutron:OVSCleanup",
+      clone_params => "interleave=true",
+    }
+    pacemaker::resource::ocf { 'neutron-netns-cleanup':
+      ocf_agent_name => "neutron:NetnsCleanup",
+      clone_params => "interleave=true",
+    }
+    pacemaker::resource::ocf { 'neutron-scale':
+      ocf_agent_name => "neutron:NeutronScale",
+      clone_params => "globally-unique=true clone-max=3 interleave=true",
+    }
+    pacemaker::constraint::base { 'keystone-to-neutron-server-constraint':
+      constraint_type => "order",
+      first_resource => "${::keystone::params::service_name}-clone",
+      second_resource => "${::neutron::params::server_service}-clone",
+      first_action => "start",
+      second_action => "start",
+      require => [Pacemaker::Resource::Service[$::keystone::params::service_name],
+                  Pacemaker::Resource::Service[$::neutron::params::server_service]],
+    }
+    pacemaker::constraint::base { 'neutron-server-to-neutron-scale-constraint':
+      constraint_type => "order",
+      first_resource => "${::neutron::params::server_service}-clone",
+      second_resource => "neutron-scale-clone",
+      first_action => "start",
+      second_action => "start",
+      require => [Pacemaker::Resource::Service[$::neutron::params::server_service],
+                  Pacemaker::Resource::Ocf['neutron-scale']],
+    }
+    pacemaker::constraint::base { 'neutron-scale-to-ovs-cleanup-constraint':
+      constraint_type => "order",
+      first_resource => "neutron-scale-clone",
+      second_resource => "${::neutron::params::ovs_cleanup_service}-clone",
+      first_action => "start",
+      second_action => "start",
+      require => [Pacemaker::Resource::Ocf['neutron-scale'],
+                  Pacemaker::Resource::Ocf["${::neutron::params::ovs_cleanup_service}"]],
+    }
+    pacemaker::constraint::colocation { 'neutron-scale-to-ovs-cleanup-colocation':
+      source => "${::neutron::params::ovs_cleanup_service}-clone",
+      target => "neutron-scale-clone",
+      score => "INFINITY",
+      require => [Pacemaker::Resource::Ocf['neutron-scale'],
+                  Pacemaker::Resource::Ocf["${::neutron::params::ovs_cleanup_service}"]],
+    }
+    pacemaker::constraint::base { 'neutron-ovs-cleanup-to-netns-cleanup-constraint':
+      constraint_type => "order",
+      first_resource => "${::neutron::params::ovs_cleanup_service}-clone",
+      second_resource => "neutron-netns-cleanup-clone",
+      first_action => "start",
+      second_action => "start",
+      require => [Pacemaker::Resource::Ocf["${::neutron::params::ovs_cleanup_service}"],
+                  Pacemaker::Resource::Ocf['neutron-netns-cleanup']],
+    }
+    pacemaker::constraint::colocation { 'neutron-ovs-cleanup-to-netns-cleanup-colocation':
+      source => "neutron-netns-cleanup-clone",
+      target => "${::neutron::params::ovs_cleanup_service}-clone",
+      score => "INFINITY",
+      require => [Pacemaker::Resource::Ocf["${::neutron::params::ovs_cleanup_service}"],
+                  Pacemaker::Resource::Ocf['neutron-netns-cleanup']],
+    }
+    pacemaker::constraint::base { 'neutron-netns-cleanup-to-openvswitch-agent-constraint':
+      constraint_type => "order",
+      first_resource => "neutron-netns-cleanup-clone",
+      second_resource => "${::neutron::params::ovs_agent_service}-clone",
+      first_action => "start",
+      second_action => "start",
+      require => [Pacemaker::Resource::Ocf["neutron-netns-cleanup"],
+                  Pacemaker::Resource::Service["${::neutron::params::ovs_agent_service}"]],
+    }
+    pacemaker::constraint::colocation { 'neutron-netns-cleanup-to-openvswitch-agent-colocation':
+      source => "${::neutron::params::ovs_agent_service}-clone",
+      target => "neutron-netns-cleanup-clone",
+      score => "INFINITY",
+      require => [Pacemaker::Resource::Ocf["neutron-netns-cleanup"],
+                  Pacemaker::Resource::Service["${::neutron::params::ovs_agent_service}"]],
+    }
+    pacemaker::constraint::base { 'neutron-openvswitch-agent-to-dhcp-agent-constraint':
+      constraint_type => "order",
+      first_resource => "${::neutron::params::ovs_agent_service}-clone",
+      second_resource => "${::neutron::params::dhcp_agent_service}-clone",
+      first_action => "start",
+      second_action => "start",
+      require => [Pacemaker::Resource::Service["${::neutron::params::ovs_agent_service}"],
+                  Pacemaker::Resource::Service["${::neutron::params::dhcp_agent_service}"]],
+
+    }
+    pacemaker::constraint::colocation { 'neutron-openvswitch-agent-to-dhcp-agent-colocation':
+      source => "${::neutron::params::dhcp_agent_service}-clone",
+      target => "${::neutron::params::ovs_agent_service}-clone",
+      score => "INFINITY",
+      require => [Pacemaker::Resource::Service["${::neutron::params::ovs_agent_service}"],
+                  Pacemaker::Resource::Service["${::neutron::params::dhcp_agent_service}"]],
+    }
+    pacemaker::constraint::base { 'neutron-dhcp-agent-to-l3-agent-constraint':
+      constraint_type => "order",
+      first_resource => "${::neutron::params::dhcp_agent_service}-clone",
+      second_resource => "${::neutron::params::l3_agent_service}-clone",
+      first_action => "start",
+      second_action => "start",
+      require => [Pacemaker::Resource::Service["${::neutron::params::dhcp_agent_service}"],
+                  Pacemaker::Resource::Service["${::neutron::params::l3_agent_service}"]]
+    }
+    pacemaker::constraint::colocation { 'neutron-dhcp-agent-to-l3-agent-colocation':
+      source => "${::neutron::params::l3_agent_service}-clone",
+      target => "${::neutron::params::dhcp_agent_service}-clone",
+      score => "INFINITY",
+      require => [Pacemaker::Resource::Service["${::neutron::params::dhcp_agent_service}"],
+                  Pacemaker::Resource::Service["${::neutron::params::l3_agent_service}"]]
+    }
+    pacemaker::constraint::base { 'neutron-l3-agent-to-metadata-agent-constraint':
+      constraint_type => "order",
+      first_resource => "${::neutron::params::l3_agent_service}-clone",
+      second_resource => "${::neutron::params::metadata_agent_service}-clone",
+      first_action => "start",
+      second_action => "start",
+      require => [Pacemaker::Resource::Service["${::neutron::params::l3_agent_service}"],
+                  Pacemaker::Resource::Service["${::neutron::params::metadata_agent_service}"]]
+    }
+    pacemaker::constraint::colocation { 'neutron-l3-agent-to-metadata-agent-colocation':
+      source => "${::neutron::params::metadata_agent_service}-clone",
+      target => "${::neutron::params::l3_agent_service}-clone",
+      score => "INFINITY",
+      require => [Pacemaker::Resource::Service["${::neutron::params::l3_agent_service}"],
+                  Pacemaker::Resource::Service["${::neutron::params::metadata_agent_service}"]]
+    }
+
+    # Nova
+    pacemaker::resource::service { $::nova::params::api_service_name :
+      clone_params    => "interleave=true",
+      op_params       => "monitor start-delay=10s",
+    }
+    pacemaker::resource::service { $::nova::params::conductor_service_name :
+      clone_params    => "interleave=true",
+      op_params       => "monitor start-delay=10s",
+    }
+    pacemaker::resource::service { $::nova::params::consoleauth_service_name :
+      clone_params    => "interleave=true",
+      op_params       => "monitor start-delay=10s",
+      require         => Pacemaker::Resource::Service[$::keystone::params::service_name],
+    }
+    pacemaker::resource::service { $::nova::params::vncproxy_service_name :
+      clone_params    => "interleave=true",
+      op_params       => "monitor start-delay=10s",
+    }
+    pacemaker::resource::service { $::nova::params::scheduler_service_name :
+      clone_params    => "interleave=true",
+      op_params       => "monitor start-delay=10s",
+    }
+
+    pacemaker::constraint::base { 'keystone-then-nova-consoleauth-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::keystone::params::service_name}-clone",
+      second_resource => "${::nova::params::consoleauth_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::nova::params::consoleauth_service_name],
+                          Pacemaker::Resource::Service[$::keystone::params::service_name]],
+    }
+    pacemaker::constraint::base { 'nova-consoleauth-then-nova-vncproxy-constraint':
+      constraint_type => "order",
+      first_resource  => "${::nova::params::consoleauth_service_name}-clone",
+      second_resource => "${::nova::params::vncproxy_service_name}-clone",
+      first_action    => "start",
+      second_action   => "start",
+      require => [Pacemaker::Resource::Service[$::nova::params::consoleauth_service_name],
+                  Pacemaker::Resource::Service[$::nova::params::vncproxy_service_name]],
+    }
+    pacemaker::constraint::colocation { 'nova-vncproxy-with-nova-consoleauth-colocation':
+      source => "${::nova::params::vncproxy_service_name}-clone",
+      target => "${::nova::params::consoleauth_service_name}-clone",
+      score => "INFINITY",
+      require => [Pacemaker::Resource::Service[$::nova::params::consoleauth_service_name],
+                  Pacemaker::Resource::Service[$::nova::params::vncproxy_service_name]],
+    }
+    # FIXME(gfidente): novncproxy will not start unless websockify is updated to 0.6
+    # which is not the case for f20 nor f21; ucomment when it becomes available
+    #pacemaker::constraint::base { 'nova-vncproxy-then-nova-api-constraint':
+    #  constraint_type => "order",
+    #  first_resource  => "${::nova::params::vncproxy_service_name}-clone",
+    #  second_resource => "${::nova::params::api_service_name}-clone",
+    #  first_action    => "start",
+    #  second_action   => "start",
+    #  require => [Pacemaker::Resource::Service[$::nova::params::vncproxy_service_name],
+    #              Pacemaker::Resource::Service[$::nova::params::api_service_name]],
+    #}
+    #pacemaker::constraint::colocation { 'nova-api-with-nova-vncproxy-colocation':
+    #  source => "${::nova::params::api_service_name}-clone",
+    #  target => "${::nova::params::vncproxy_service_name}-clone",
+    #  score => "INFINITY",
+    #  require => [Pacemaker::Resource::Service[$::nova::params::vncproxy_service_name],
+    #              Pacemaker::Resource::Service[$::nova::params::api_service_name]],
+    #}
+    pacemaker::constraint::base { 'nova-api-then-nova-scheduler-constraint':
+      constraint_type => "order",
+      first_resource  => "${::nova::params::api_service_name}-clone",
+      second_resource => "${::nova::params::scheduler_service_name}-clone",
+      first_action    => "start",
+      second_action   => "start",
+      require => [Pacemaker::Resource::Service[$::nova::params::api_service_name],
+                  Pacemaker::Resource::Service[$::nova::params::scheduler_service_name]],
+    }
+    pacemaker::constraint::colocation { 'nova-scheduler-with-nova-api-colocation':
+      source => "${::nova::params::scheduler_service_name}-clone",
+      target => "${::nova::params::api_service_name}-clone",
+      score => "INFINITY",
+      require => [Pacemaker::Resource::Service[$::nova::params::api_service_name],
+                  Pacemaker::Resource::Service[$::nova::params::scheduler_service_name]],
+    }
+    pacemaker::constraint::base { 'nova-scheduler-then-nova-conductor-constraint':
+      constraint_type => "order",
+      first_resource  => "${::nova::params::scheduler_service_name}-clone",
+      second_resource => "${::nova::params::conductor_service_name}-clone",
+      first_action    => "start",
+      second_action   => "start",
+      require => [Pacemaker::Resource::Service[$::nova::params::scheduler_service_name],
+                  Pacemaker::Resource::Service[$::nova::params::conductor_service_name]],
+    }
+    pacemaker::constraint::colocation { 'nova-conductor-with-nova-scheduler-colocation':
+      source => "${::nova::params::conductor_service_name}-clone",
+      target => "${::nova::params::scheduler_service_name}-clone",
+      score => "INFINITY",
+      require => [Pacemaker::Resource::Service[$::nova::params::scheduler_service_name],
+                  Pacemaker::Resource::Service[$::nova::params::conductor_service_name]],
+    }
+
+    # Ceilometer
+    pacemaker::resource::service { $::ceilometer::params::agent_central_service_name :
+      clone_params => 'interleave=true',
+      require      => [Pacemaker::Resource::Service[$::keystone::params::service_name],
+                       Pacemaker::Resource::Service[$::mongodb::params::service_name]],
+    }
+    pacemaker::resource::service { $::ceilometer::params::collector_service_name :
+      clone_params => 'interleave=true',
+    }
+    pacemaker::resource::service { $::ceilometer::params::api_service_name :
+      clone_params => 'interleave=true',
+    }
+    pacemaker::resource::service { $::ceilometer::params::alarm_evaluator_service_name :
+      clone_params => 'interleave=true',
+    }
+    pacemaker::resource::service { $::ceilometer::params::alarm_notifier_service_name :
+      clone_params => 'interleave=true',
+    }
+    pacemaker::resource::service { $::ceilometer::params::agent_notification_service_name :
+      clone_params => 'interleave=true',
+    }
+    pacemaker::resource::ocf { 'delay' :
+      ocf_agent_name  => 'heartbeat:Delay',
+      clone_params    => 'interleave=true',
+      resource_params => 'startdelay=10',
+    }
+    pacemaker::constraint::base { 'keystone-then-ceilometer-central-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::keystone::params::service_name}-clone",
+      second_resource => "${::ceilometer::params::agent_central_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::ceilometer::params::agent_central_service_name],
+                          Pacemaker::Resource::Service[$::keystone::params::service_name]],
+    }
+    pacemaker::constraint::base { 'ceilometer-central-then-ceilometer-collector-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::ceilometer::params::agent_central_service_name}-clone",
+      second_resource => "${::ceilometer::params::collector_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::ceilometer::params::agent_central_service_name],
+                          Pacemaker::Resource::Service[$::ceilometer::params::collector_service_name]],
+    }
+    pacemaker::constraint::base { 'ceilometer-collector-then-ceilometer-api-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::ceilometer::params::collector_service_name}-clone",
+      second_resource => "${::ceilometer::params::api_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::ceilometer::params::collector_service_name],
+                          Pacemaker::Resource::Service[$::ceilometer::params::api_service_name]],
+    }
+    pacemaker::constraint::colocation { 'ceilometer-api-with-ceilometer-collector-colocation':
+      source  => "${::ceilometer::params::api_service_name}-clone",
+      target  => "${::ceilometer::params::collector_service_name}-clone",
+      score   => 'INFINITY',
+      require => [Pacemaker::Resource::Service[$::ceilometer::params::api_service_name],
+                  Pacemaker::Resource::Service[$::ceilometer::params::collector_service_name]],
+    }
+    pacemaker::constraint::base { 'ceilometer-api-then-ceilometer-delay-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::ceilometer::params::api_service_name}-clone",
+      second_resource => 'delay-clone',
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::ceilometer::params::api_service_name],
+                          Pacemaker::Resource::Ocf['delay']],
+    }
+    pacemaker::constraint::colocation { 'ceilometer-delay-with-ceilometer-api-colocation':
+      source  => 'delay-clone',
+      target  => "${::ceilometer::params::api_service_name}-clone",
+      score   => 'INFINITY',
+      require => [Pacemaker::Resource::Service[$::ceilometer::params::api_service_name],
+                  Pacemaker::Resource::Ocf['delay']],
+    }
+    pacemaker::constraint::base { 'ceilometer-delay-then-ceilometer-alarm-evaluator-constraint':
+      constraint_type => 'order',
+      first_resource  => 'delay-clone',
+      second_resource => "${::ceilometer::params::alarm_evaluator_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::ceilometer::params::alarm_evaluator_service_name],
+                          Pacemaker::Resource::Ocf['delay']],
+    }
+    pacemaker::constraint::colocation { 'ceilometer-alarm-evaluator-with-ceilometer-delay-colocation':
+      source  => "${::ceilometer::params::alarm_evaluator_service_name}-clone",
+      target  => 'delay-clone',
+      score   => 'INFINITY',
+      require => [Pacemaker::Resource::Service[$::ceilometer::params::api_service_name],
+                  Pacemaker::Resource::Ocf['delay']],
+    }
+    pacemaker::constraint::base { 'ceilometer-alarm-evaluator-then-ceilometer-alarm-notifier-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::ceilometer::params::alarm_evaluator_service_name}-clone",
+      second_resource => "${::ceilometer::params::alarm_notifier_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::ceilometer::params::alarm_evaluator_service_name],
+                          Pacemaker::Resource::Service[$::ceilometer::params::alarm_notifier_service_name]],
+    }
+    pacemaker::constraint::colocation { 'ceilometer-alarm-notifier-with-ceilometer-alarm-evaluator-colocation':
+      source  => "${::ceilometer::params::alarm_notifier_service_name}-clone",
+      target  => "${::ceilometer::params::alarm_evaluator_service_name}-clone",
+      score   => 'INFINITY',
+      require => [Pacemaker::Resource::Service[$::ceilometer::params::alarm_evaluator_service_name],
+                  Pacemaker::Resource::Service[$::ceilometer::params::alarm_notifier_service_name]],
+    }
+    pacemaker::constraint::base { 'ceilometer-alarm-notifier-then-ceilometer-notification-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::ceilometer::params::alarm_notifier_service_name}-clone",
+      second_resource => "${::ceilometer::params::agent_notification_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::ceilometer::params::agent_notification_service_name],
+                          Pacemaker::Resource::Service[$::ceilometer::params::alarm_notifier_service_name]],
+    }
+    pacemaker::constraint::colocation { 'ceilometer-notification-with-ceilometer-alarm-notifier-colocation':
+      source  => "${::ceilometer::params::agent_notification_service_name}-clone",
+      target  => "${::ceilometer::params::alarm_notifier_service_name}-clone",
+      score   => 'INFINITY',
+      require => [Pacemaker::Resource::Service[$::ceilometer::params::agent_notification_service_name],
+                  Pacemaker::Resource::Service[$::ceilometer::params::alarm_notifier_service_name]],
+    }
+    if downcase(hiera('ceilometer_backend')) == 'mongodb' {
+      pacemaker::constraint::base { 'mongodb-then-ceilometer-central-constraint':
+        constraint_type => 'order',
+        first_resource  => "${::mongodb::params::service_name}-clone",
+        second_resource => "${::ceilometer::params::agent_central_service_name}-clone",
+        first_action    => 'start',
+        second_action   => 'start',
+        require         => [Pacemaker::Resource::Service[$::ceilometer::params::agent_central_service_name],
+                            Pacemaker::Resource::Service[$::mongodb::params::service_name]],
+      }
+    }
+
+    # Heat
+    pacemaker::resource::service { $::heat::params::api_service_name :
+      clone_params => 'interleave=true',
+    }
+    pacemaker::resource::service { $::heat::params::api_cloudwatch_service_name :
+      clone_params => 'interleave=true',
+    }
+    pacemaker::resource::service { $::heat::params::api_cfn_service_name :
+      clone_params => 'interleave=true',
+    }
+    pacemaker::resource::service { $::heat::params::engine_service_name :
+      clone_params => 'interleave=true',
+    }
+    pacemaker::constraint::base { 'keystone-then-heat-api-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::keystone::params::service_name}-clone",
+      second_resource => "${::heat::params::api_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::heat::params::api_service_name],
+                          Pacemaker::Resource::Service[$::keystone::params::service_name]],
+    }
+    pacemaker::constraint::base { 'heat-api-then-heat-api-cfn-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::heat::params::api_service_name}-clone",
+      second_resource => "${::heat::params::api_cfn_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require => [Pacemaker::Resource::Service[$::heat::params::api_service_name],
+                  Pacemaker::Resource::Service[$::heat::params::api_cfn_service_name]],
+    }
+    pacemaker::constraint::colocation { 'heat-api-cfn-with-heat-api-colocation':
+      source  => "${::heat::params::api_cfn_service_name}-clone",
+      target  => "${::heat::params::api_service_name}-clone",
+      score   => 'INFINITY',
+      require => [Pacemaker::Resource::Service[$::heat::params::api_cfn_service_name],
+                  Pacemaker::Resource::Service[$::heat::params::api_service_name]],
+    }
+    pacemaker::constraint::base { 'heat-api-cfn-then-heat-api-cloudwatch-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::heat::params::api_cfn_service_name}-clone",
+      second_resource => "${::heat::params::api_cloudwatch_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require => [Pacemaker::Resource::Service[$::heat::params::api_cloudwatch_service_name],
+                  Pacemaker::Resource::Service[$::heat::params::api_cfn_service_name]],
+    }
+    pacemaker::constraint::colocation { 'heat-api-cloudwatch-with-heat-api-cfn-colocation':
+      source  => "${::heat::params::api_cloudwatch_service_name}-clone",
+      target  => "${::heat::params::api_cfn_service_name}-clone",
+      score   => 'INFINITY',
+      require => [Pacemaker::Resource::Service[$::heat::params::api_cfn_service_name],
+                  Pacemaker::Resource::Service[$::heat::params::api_cloudwatch_service_name]],
+    }
+    pacemaker::constraint::base { 'heat-api-cloudwatch-then-heat-engine-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::heat::params::api_cloudwatch_service_name}-clone",
+      second_resource => "${::heat::params::engine_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require => [Pacemaker::Resource::Service[$::heat::params::api_cloudwatch_service_name],
+                  Pacemaker::Resource::Service[$::heat::params::engine_service_name]],
+    }
+    pacemaker::constraint::colocation { 'heat-engine-with-heat-api-cloudwatch-colocation':
+      source  => "${::heat::params::engine_service_name}-clone",
+      target  => "${::heat::params::api_cloudwatch_service_name}-clone",
+      score   => 'INFINITY',
+      require => [Pacemaker::Resource::Service[$::heat::params::api_cloudwatch_service_name],
+                  Pacemaker::Resource::Service[$::heat::params::engine_service_name]],
+    }
+    pacemaker::constraint::base { 'ceilometer-notification-then-heat-api-constraint':
+      constraint_type => 'order',
+      first_resource  => "${::ceilometer::params::agent_notification_service_name}-clone",
+      second_resource => "${::heat::params::api_service_name}-clone",
+      first_action    => 'start',
+      second_action   => 'start',
+      require         => [Pacemaker::Resource::Service[$::heat::params::api_service_name],
+                          Pacemaker::Resource::Service[$::ceilometer::params::agent_notification_service_name]],
+    }
+
+    # Horizon
+    pacemaker::resource::service { $::horizon::params::http_service:
+        clone_params => "interleave=true",
+    }
+
+
   }
 
 } #END STEP 4