Make load balancer deployment optional via template param

Adds control over the load balancer deployment via template param.

Change-Id: I5625083ff323a87712a5fd3f9a64dd66d2838468

4 files changed, 163 insertions, 144 deletions

diff --git a/environments/external-loadbalancer-vip.yaml b/environments/external-loadbalancer-vip.yaml
index 0866806c..47d5bd9b 100644
--- a/environments/external-loadbalancer-vip.yaml
+++ b/environments/external-loadbalancer-vip.yaml
@@ -11,3 +11,4 @@ parameter_defaults:
   # InternalApiNetworkVip:
   # StorageNetworkVip:
   # StorageMgmtNetworkVip:
+  EnableLoadBalancer: false
\ No newline at end of file
diff --git a/puppet/controller.yaml b/puppet/controller.yaml
index 0c921eb6..94bf764b 100644
--- a/puppet/controller.yaml
+++ b/puppet/controller.yaml
@@ -106,6 +106,10 @@ parameters:
     default: true
     description: Whether to use Galera instead of regular MariaDB.
     type: boolean
+  EnableLoadBalancer:
+    default: true
+    description: Whether to deploy a LoadBalancer on the Controller
+    type: boolean
   EnableCephStorage:
     default: false
     description: Whether to deploy Ceph Storage (OSD) on the Controller
@@ -823,6 +827,7 @@ resources:
         keystone_ec2_uri: { get_param: [EndpointMap, KeystoneEC2, uri] }
         enable_fencing: {get_param: EnableFencing}
         enable_galera: {get_param: EnableGalera}
+        enable_load_balancer: {get_param: EnableLoadBalancer}
         enable_ceph_storage: {get_param: EnableCephStorage}
         enable_swift_storage: {get_param: EnableSwiftStorage}
         mysql_innodb_buffer_pool_size: {get_param: MysqlInnodbBufferPoolSize}
@@ -1040,6 +1045,7 @@ resources:
 
                 # Pacemaker
                 enable_fencing: {get_input: enable_fencing}
+                enable_load_balancer: {get_input: enable_load_balancer}
                 hacluster_pwd: {get_input: pcsd_password}
                 tripleo::fencing::config: {get_input: fencing_config}
 
diff --git a/puppet/manifests/overcloud_controller.pp b/puppet/manifests/overcloud_controller.pp
index 570c43ba..3652aee5 100644
--- a/puppet/manifests/overcloud_controller.pp
+++ b/puppet/manifests/overcloud_controller.pp
@@ -15,15 +15,19 @@
 
 include ::tripleo::packages
 
+$enable_load_balancer = hiera('enable_load_balancer', true)
+
 if hiera('step') >= 1 {
 
   create_resources(sysctl::value, hiera('sysctl_settings'), {})
 
   $controller_node_ips = split(hiera('controller_node_ips'), ',')
 
-  class { '::tripleo::loadbalancer' :
-    controller_hosts => $controller_node_ips,
-    manage_vip       => true,
+  if $enable_load_balancer {
+    class { '::tripleo::loadbalancer' :
+      controller_hosts => $controller_node_ips,
+      manage_vip       => true,
+    }
   }
 
 }
diff --git a/puppet/manifests/overcloud_controller_pacemaker.pp b/puppet/manifests/overcloud_controller_pacemaker.pp
index 2a3f1f92..6081daf3 100644
--- a/puppet/manifests/overcloud_controller_pacemaker.pp
+++ b/puppet/manifests/overcloud_controller_pacemaker.pp
@@ -29,6 +29,7 @@ if $::hostname == downcase(hiera('bootstrap_nodeid')) {
 }
 
 $enable_fencing = str2bool(hiera('enable_fencing', false)) and hiera('step') >= 5
+$enable_load_balancer = hiera('enable_load_balancer', true)
 
 # When to start and enable services which haven't been Pacemakerized
 # FIXME: remove when we start all OpenStack services using Pacemaker
@@ -45,12 +46,14 @@ if hiera('step') >= 1 {
 
   $controller_node_ips = split(hiera('controller_node_ips'), ',')
   $controller_node_names = split(downcase(hiera('controller_node_names')), ',')
-  class { '::tripleo::loadbalancer' :
-    controller_hosts       => $controller_node_ips,
-    controller_hosts_names => $controller_node_names,
-    manage_vip             => false,
-    mysql_clustercheck     => true,
-    haproxy_service_manage => false,
+  if $enable_load_balancer {
+    class { '::tripleo::loadbalancer' :
+      controller_hosts       => $controller_node_ips,
+      controller_hosts_names => $controller_node_names,
+      manage_vip             => false,
+      mysql_clustercheck     => true,
+      haproxy_service_manage => false,
+    }
   }
 
   $pacemaker_cluster_members = downcase(regsubst(hiera('controller_node_names'), ',', ' ', 'G'))
@@ -178,156 +181,160 @@ if hiera('step') >= 2 {
 
   if $pacemaker_master {
 
-    include ::pacemaker::resource_defaults
+    if $enable_load_balancer {
 
-    # 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,
-    }
+      include ::pacemaker::resource_defaults
 
-    $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')
-    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']],
+      # 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,
       }
-    }
 
-    $redis_vip = hiera('redis_vip')
-    if $redis_vip and $redis_vip != $control_vip {
-      pacemaker::resource::ip { 'redis_vip':
-        ip_address => $redis_vip,
+      $control_vip = hiera('tripleo::loadbalancer::controller_virtual_ip')
+      pacemaker::resource::ip { 'control_vip':
+        ip_address => $control_vip,
       }
-      pacemaker::constraint::base { 'redis_vip-then-haproxy':
+      pacemaker::constraint::base { 'control_vip-then-haproxy':
         constraint_type   => 'order',
-        first_resource    => "ip-${redis_vip}",
+        first_resource    => "ip-${control_vip}",
         second_resource   => 'haproxy-clone',
         first_action      => 'start',
         second_action     => 'start',
         constraint_params => 'kind=Optional',
         require           => [Pacemaker::Resource::Service['haproxy'],
-                              Pacemaker::Resource::Ip['redis_vip']],
+                              Pacemaker::Resource::Ip['control_vip']],
       }
-      pacemaker::constraint::colocation { 'redis_vip-with-haproxy':
-        source  => "ip-${redis_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['redis_vip']],
+                    Pacemaker::Resource::Ip['control_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']],
+      $public_vip = hiera('tripleo::loadbalancer::public_virtual_ip')
+      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']],
+        }
       }
-    }
 
-    $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']],
+      $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']],
+        }
       }
-    }
 
-    $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,
+      $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-${internal_api_vip}",
+          target  => 'haproxy-clone',
+          score   => 'INFINITY',
+          require => [Pacemaker::Resource::Service['haproxy'],
+                      Pacemaker::Resource::Ip['internal_api_vip']],
+        }
       }
-      pacemaker::constraint::base { 'storage_mgmt_vip-then-haproxy':
-        constraint_type   => 'order',
-        first_resource    => "ip-${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']],
+
+      $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-${storage_vip}",
+          target  => 'haproxy-clone',
+          score   => 'INFINITY',
+          require => [Pacemaker::Resource::Service['haproxy'],
+                      Pacemaker::Resource::Ip['storage_vip']],
+        }
       }
-      pacemaker::constraint::colocation { 'storage_mgmt_vip-with-haproxy':
-        source  => "ip-${storage_mgmt_vip}",
-        target  => 'haproxy-clone',
-        score   => 'INFINITY',
-        require => [Pacemaker::Resource::Service['haproxy'],
-                    Pacemaker::Resource::Ip['storage_mgmt_vip']],
+
+      $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 { $::memcached::params::service_name :
@@ -923,15 +930,16 @@ if hiera('step') >= 4 {
                             File['/etc/keystone/ssl/private/signing_key.pem'],
                             File['/etc/keystone/ssl/certs/signing_cert.pem']],
     }
-
-    pacemaker::constraint::base { 'haproxy-then-keystone-constraint':
-      constraint_type => 'order',
-      first_resource  => 'haproxy-clone',
-      second_resource => "${::keystone::params::service_name}-clone",
-      first_action    => 'start',
-      second_action   => 'start',
-      require         => [Pacemaker::Resource::Service['haproxy'],
-                          Pacemaker::Resource::Service[$::keystone::params::service_name]],
+    if $enable_load_balancer {
+      pacemaker::constraint::base { 'haproxy-then-keystone-constraint':
+        constraint_type => 'order',
+        first_resource  => 'haproxy-clone',
+        second_resource => "${::keystone::params::service_name}-clone",
+        first_action    => 'start',
+        second_action   => 'start',
+        require         => [Pacemaker::Resource::Service['haproxy'],
+                            Pacemaker::Resource::Service[$::keystone::params::service_name]],
+      }
     }
     pacemaker::constraint::base { 'rabbitmq-then-keystone-constraint':
       constraint_type => 'order',