Configure ComputeServices via resource chains

This patch wires a Heat feature to configure
services via a Heat resource chain.

Additional patches will be able to configure
compute services using composable services.

Change-Id: Ib4fd8bffde51902aa19f9673a389600fc467fc45

4 files changed, 237 insertions, 177 deletions

diff --git a/overcloud.yaml b/overcloud.yaml
index 6a8081af..d56fb6ec 100644
--- a/overcloud.yaml
+++ b/overcloud.yaml
@@ -661,6 +661,13 @@ parameters:
                  for each service that should get installed on the Controllers.
     type: comma_delimited_list
 
+  ComputeServices:
+    default: []
+    description: A list of service resources (configured in the Heat
+                 resource_registry) which represent nested stacks
+                 for each service that should get installed on the Compute Nodes.
+    type: comma_delimited_list
+
 # Block storage specific parameters
   BlockStorageCount:
     type: number
@@ -992,6 +999,13 @@ resources:
           SchedulerHints: {get_param: ControllerSchedulerHints}
           ServiceConfigSettings: {get_attr: [ControllerServiceChain, config_settings]}
 
+  ComputeServiceChain:
+    type: OS::TripleO::Services
+    properties:
+      Services: {get_param: ComputeServices}
+      EndpointMap: {get_attr: [EndpointMap, endpoint_map]}
+      MysqlVirtualIPUri: {get_attr: [VipMap, net_ip_uri_map, {get_param: [ServiceNetMap, MysqlNetwork]}]}
+
   Compute:
     type: OS::Heat::ResourceGroup
     depends_on: Networks
@@ -1072,6 +1086,8 @@ resources:
           ServerMetadata: {get_param: ServerMetadata}
           SchedulerHints: {get_param: NovaComputeSchedulerHints}
           NodeIndex: '%index%'
+          ServiceConfigSettings: {get_attr: [ComputeServiceChain, config_settings]}
+
 
   BlockStorage:
     type: OS::Heat::ResourceGroup
@@ -1557,6 +1573,7 @@ resources:
         allnodes_extra: {get_attr: [AllNodesExtraConfig, config_identifier]}
         compute_config: {get_attr: [Compute, attributes, config_identifier]}
         deployment_identifier: {get_param: DeployIdentifier}
+      StepConfig: {get_attr: [ComputeServiceChain, step_config]}
 
   ObjectStorageNodesPostDeployment:
     type: OS::TripleO::ObjectStoragePostDeployment
diff --git a/puppet/compute-post.yaml b/puppet/compute-post.yaml
index a122df0e..698cadba 100644
--- a/puppet/compute-post.yaml
+++ b/puppet/compute-post.yaml
@@ -13,7 +13,10 @@ parameters:
   NodeConfigIdentifiers:
      type: json
      description: Value which changes if the node configuration may need to be re-applied
-
+  StepConfig:
+     type: string
+     description: Config manifests that will be used to step through the deployment.
+     default: ''
 
 resources:
 
@@ -34,25 +37,55 @@ resources:
       group: puppet
       options:
         enable_debug: {get_param: ConfigDebug}
+        enable_hiera: True
+        enable_facter: False
+      inputs:
+      - name: step
       outputs:
       - name: result
       config:
-        get_file: manifests/overcloud_compute.pp
+        list_join:
+        - ''
+        - - get_file: manifests/overcloud_compute.pp
+          - {get_param: StepConfig}
+
+  ComputeServicesBaseDeployment_Step2:
+    type: OS::Heat::StructuredDeployments
+    depends_on: [ComputeArtifactsDeploy]
+    properties:
+      name: ComputeServicesBaseDeployment_Step2
+      servers:  {get_param: servers}
+      config: {get_resource: ComputePuppetConfig}
+      input_values:
+        step: 2
+        update_identifier: {get_param: NodeConfigIdentifiers}
+
+  ComputeOvercloudServicesDeployment_Step3:
+    type: OS::Heat::StructuredDeployments
+    depends_on: ComputeServicesBaseDeployment_Step2
+    properties:
+      name: ComputeOvercloudServicesDeployment_Step3
+      servers:  {get_param: servers}
+      config: {get_resource: ComputePuppetConfig}
+      input_values:
+        step: 3
+        update_identifier: {get_param: NodeConfigIdentifiers}
 
-  ComputePuppetDeployment:
+  ComputeOvercloudServicesDeployment_Step4:
     type: OS::Heat::StructuredDeployments
-    depends_on: ComputeArtifactsDeploy
+    depends_on: ComputeOvercloudServicesDeployment_Step3
     properties:
-      name: ComputePuppetDeployment
+      name: ComputeOvercloudServicesDeployment_Step4
       servers:  {get_param: servers}
       config: {get_resource: ComputePuppetConfig}
       input_values:
+        step: 4
         update_identifier: {get_param: NodeConfigIdentifiers}
 
   # Note, this should come last, so use depends_on to ensure
   # this is created after any other resources.
   ExtraConfig:
-    depends_on: ComputePuppetDeployment
+    depends_on: ComputeOvercloudServicesDeployment_Step4
     type: OS::TripleO::NodeExtraConfigPost
     properties:
         servers: {get_param: servers}
diff --git a/puppet/compute.yaml b/puppet/compute.yaml
index e56deefd..ee00a890 100644
--- a/puppet/compute.yaml
+++ b/puppet/compute.yaml
@@ -339,6 +339,9 @@ parameters:
     type: json
     description: Optional scheduler hints to pass to nova
     default: {}
+  ServiceConfigSettings:
+    type: json
+    default: {}
 
 resources:
 
@@ -481,6 +484,7 @@ resources:
             - heat_config_%{::deploy_config_name}
             - compute_extraconfig
             - extraconfig
+            - service_configs
             - compute
             - ceph_cluster # provided by CephClusterConfig
             - ceph
@@ -495,6 +499,8 @@ resources:
             - neutron_opencontrail_data  # Optionally provided by ComputeExtraConfigPre
           merge_behavior: deeper
           datafiles:
+            service_configs:
+              mapped_data: {get_param: ServiceConfigSettings}
             compute_extraconfig:
               mapped_data: {get_param: NovaComputeExtraConfig}
             extraconfig:
diff --git a/puppet/manifests/overcloud_compute.pp b/puppet/manifests/overcloud_compute.pp
index 43e87789..6ff74e12 100644
--- a/puppet/manifests/overcloud_compute.pp
+++ b/puppet/manifests/overcloud_compute.pp
@@ -16,8 +16,8 @@
 include ::tripleo::packages
 include ::tripleo::firewall
 
-create_resources(kmod::load, hiera('kernel_modules'), {})
-create_resources(sysctl::value, hiera('sysctl_settings'), {})
+create_resources(kmod::load, hiera('kernel_modules'), { })
+create_resources(sysctl::value, hiera('sysctl_settings'), { })
 Exec <| tag == 'kmod::load' |>  -> Sysctl <| |>
 
 if count(hiera('ntp::servers')) > 0 {
@@ -26,200 +26,204 @@ if count(hiera('ntp::servers')) > 0 {
 
 include ::timezone
 
-file { ['/etc/libvirt/qemu/networks/autostart/default.xml',
-        '/etc/libvirt/qemu/networks/default.xml']:
-  ensure => absent,
-  before => Service['libvirt'],
-}
-# in case libvirt has been already running before the Puppet run, make
-# sure the default network is destroyed
-exec { 'libvirt-default-net-destroy':
-  command => '/usr/bin/virsh net-destroy default',
-  onlyif  => '/usr/bin/virsh net-info default | /bin/grep -i "^active:\s*yes"',
-  before  => Service['libvirt'],
-}
-
-# When utilising images for deployment, we need to reset the iSCSI initiator name to make it unique
-exec { 'reset-iscsi-initiator-name':
-  command => '/bin/echo InitiatorName=$(/usr/sbin/iscsi-iname) > /etc/iscsi/initiatorname.iscsi',
-  onlyif  => '/usr/bin/test ! -f /etc/iscsi/.initiator_reset',
-}->
-
-file { '/etc/iscsi/.initiator_reset':
-  ensure => present,
-}
-
-include ::nova
-include ::nova::config
-include ::nova::compute
+if hiera('step') >= 4 {
 
-$rbd_ephemeral_storage = hiera('nova::compute::rbd::ephemeral_storage', false)
-$rbd_persistent_storage = hiera('rbd_persistent_storage', false)
-if $rbd_ephemeral_storage or $rbd_persistent_storage {
-  if str2bool(hiera('ceph_ipv6', false)) {
-    $mon_host = hiera('ceph_mon_host_v6')
-  } else {
-    $mon_host = hiera('ceph_mon_host')
+  file { ['/etc/libvirt/qemu/networks/autostart/default.xml',
+    '/etc/libvirt/qemu/networks/default.xml']:
+    ensure => absent,
+    before => Service['libvirt'],
   }
-  class { '::ceph::profile::params':
-    mon_host            => $mon_host,
+  # in case libvirt has been already running before the Puppet run, make
+  # sure the default network is destroyed
+  exec { 'libvirt-default-net-destroy':
+    command => '/usr/bin/virsh net-destroy default',
+    onlyif  => '/usr/bin/virsh net-info default | /bin/grep -i "^active:\s*yes"',
+    before  => Service['libvirt'],
   }
-  include ::ceph::conf
-  include ::ceph::profile::client
 
-  $client_keys = hiera('ceph::profile::params::client_keys')
-  $client_user = join(['client.', hiera('ceph_client_user_name')])
-  class { '::nova::compute::rbd':
-    libvirt_rbd_secret_key => $client_keys[$client_user]['secret'],
+  # When utilising images for deployment, we need to reset the iSCSI initiator name to make it unique
+  exec { 'reset-iscsi-initiator-name':
+    command => '/bin/echo InitiatorName=$(/usr/sbin/iscsi-iname) > /etc/iscsi/initiatorname.iscsi',
+    onlyif  => '/usr/bin/test ! -f /etc/iscsi/.initiator_reset',
+  }->
+
+  file { '/etc/iscsi/.initiator_reset':
+    ensure => present,
   }
-}
 
-if hiera('cinder_enable_nfs_backend', false) {
-  if str2bool($::selinux) {
-    selboolean { 'virt_use_nfs':
-      value      => on,
-      persistent => true,
-    } -> Package['nfs-utils']
+  include ::nova
+  include ::nova::config
+  include ::nova::compute
+
+  $rbd_ephemeral_storage = hiera('nova::compute::rbd::ephemeral_storage', false)
+  $rbd_persistent_storage = hiera('rbd_persistent_storage', false)
+  if $rbd_ephemeral_storage or $rbd_persistent_storage {
+    if str2bool(hiera('ceph_ipv6', false)) {
+      $mon_host = hiera('ceph_mon_host_v6')
+    } else {
+      $mon_host = hiera('ceph_mon_host')
+    }
+    class { '::ceph::profile::params':
+      mon_host            => $mon_host,
+    }
+    include ::ceph::conf
+    include ::ceph::profile::client
+
+    $client_keys = hiera('ceph::profile::params::client_keys')
+    $client_user = join(['client.', hiera('ceph_client_user_name')])
+    class { '::nova::compute::rbd':
+      libvirt_rbd_secret_key => $client_keys[$client_user]['secret'],
+    }
   }
 
-  package {'nfs-utils': } -> Service['nova-compute']
-}
+  if hiera('cinder_enable_nfs_backend', false) {
+    if str2bool($::selinux) {
+      selboolean { 'virt_use_nfs':
+        value      => on,
+        persistent => true,
+      } -> Package['nfs-utils']
+    }
 
-if str2bool(hiera('nova::use_ipv6', false)) {
-  $vncserver_listen = '::0'
-} else {
-  $vncserver_listen = '0.0.0.0'
-}
+    package { 'nfs-utils': } -> Service['nova-compute']
+  }
 
-if $rbd_ephemeral_storage {
-  class { '::nova::compute::libvirt':
-    libvirt_disk_cachemodes => ['network=writeback'],
-    libvirt_hw_disk_discard => 'unmap',
-    vncserver_listen        => $vncserver_listen,
+  if str2bool(hiera('nova::use_ipv6', false)) {
+    $vncserver_listen = '::0'
+  } else {
+    $vncserver_listen = '0.0.0.0'
   }
-} else {
-  class { '::nova::compute::libvirt' :
-    vncserver_listen => $vncserver_listen,
+
+  if $rbd_ephemeral_storage {
+    class { '::nova::compute::libvirt':
+      libvirt_disk_cachemodes => ['network=writeback'],
+      libvirt_hw_disk_discard => 'unmap',
+      vncserver_listen        => $vncserver_listen,
+    }
+  } else {
+    class { '::nova::compute::libvirt' :
+      vncserver_listen => $vncserver_listen,
+    }
   }
-}
 
-nova_config {
-  'DEFAULT/my_ip':                     value => $ipaddress;
-  'DEFAULT/linuxnet_interface_driver': value => 'nova.network.linux_net.LinuxOVSInterfaceDriver';
-  'DEFAULT/host':                      value => $fqdn;
-  # TUNNELLED mode provides a security enhancement when using shared storage but is not
-  # supported when not using shared storage.
-  # See https://bugzilla.redhat.com/show_bug.cgi?id=1301986#c12
-  # In future versions of QEMU (2.6, mostly), Dan's native encryption
-  # work will obsolete the need to use TUNNELLED transport mode.
-  'libvirt/live_migration_tunnelled':  value => $rbd_ephemeral_storage;
-}
+  nova_config {
+    'DEFAULT/my_ip': value => $ipaddress;
+    'DEFAULT/linuxnet_interface_driver': value => 'nova.network.linux_net.LinuxOVSInterfaceDriver';
+    'DEFAULT/host': value => $fqdn;
+    # TUNNELLED mode provides a security enhancement when using shared storage but is not
+    # supported when not using shared storage.
+    # See https://bugzilla.redhat.com/show_bug.cgi?id=1301986#c12
+    # In future versions of QEMU (2.6, mostly), Dan's native encryption
+    # work will obsolete the need to use TUNNELLED transport mode.
+    'libvirt/live_migration_tunnelled': value => $rbd_ephemeral_storage;
+  }
 
-if hiera('neutron::core_plugin') == 'midonet.neutron.plugin_v1.MidonetPluginV2' {
-  file {'/etc/libvirt/qemu.conf':
-    ensure  => present,
-    content => hiera('midonet_libvirt_qemu_data')
+  if hiera('neutron::core_plugin') == 'midonet.neutron.plugin_v1.MidonetPluginV2' {
+    file { '/etc/libvirt/qemu.conf':
+      ensure  => present,
+      content => hiera('midonet_libvirt_qemu_data')
+    }
   }
-}
-include ::nova::network::neutron
-include ::neutron
-include ::neutron::config
-
-# If the value of core plugin is set to 'nuage',
-# include nuage agent,
-# If the value of core plugin is set to 'midonet',
-# include midonet agent,
-# else use the default value of 'ml2'
-if hiera('neutron::core_plugin') == 'neutron.plugins.nuage.plugin.NuagePlugin' {
-  include ::nuage::vrs
-  include ::nova::compute::neutron
-
-  class { '::nuage::metadataagent':
-    nova_os_tenant_name => hiera('nova::api::admin_tenant_name'),
-    nova_os_password    => hiera('nova_password'),
-    nova_metadata_ip    => hiera('nova_metadata_node_ips'),
-    nova_auth_ip        => hiera('keystone_public_api_virtual_ip'),
+  include ::nova::network::neutron
+  include ::neutron
+  include ::neutron::config
+
+  # If the value of core plugin is set to 'nuage',
+  # include nuage agent,
+  # If the value of core plugin is set to 'midonet',
+  # include midonet agent,
+  # else use the default value of 'ml2'
+  if hiera('neutron::core_plugin') == 'neutron.plugins.nuage.plugin.NuagePlugin' {
+    include ::nuage::vrs
+    include ::nova::compute::neutron
+
+    class { '::nuage::metadataagent':
+      nova_os_tenant_name => hiera('nova::api::admin_tenant_name'),
+      nova_os_password    => hiera('nova_password'),
+      nova_metadata_ip    => hiera('nova_metadata_node_ips'),
+      nova_auth_ip        => hiera('keystone_public_api_virtual_ip'),
+    }
   }
-}
-elsif hiera('neutron::core_plugin') == 'midonet.neutron.plugin_v1.MidonetPluginV2' {
+  elsif hiera('neutron::core_plugin') == 'midonet.neutron.plugin_v1.MidonetPluginV2' {
 
-  # TODO(devvesa) provide non-controller ips for these services
-  $zookeeper_node_ips = hiera('neutron_api_node_ips')
-  $cassandra_node_ips = hiera('neutron_api_node_ips')
+    # TODO(devvesa) provide non-controller ips for these services
+    $zookeeper_node_ips = hiera('neutron_api_node_ips')
+    $cassandra_node_ips = hiera('neutron_api_node_ips')
 
-  class {'::tripleo::network::midonet::agent':
-    zookeeper_servers => $zookeeper_node_ips,
-    cassandra_seeds   => $cassandra_node_ips
+    class { '::tripleo::network::midonet::agent':
+      zookeeper_servers => $zookeeper_node_ips,
+      cassandra_seeds   => $cassandra_node_ips
+    }
   }
-}
-elsif hiera('neutron::core_plugin') == 'neutron_plugin_contrail.plugins.opencontrail.contrail_plugin.NeutronPluginContrailCoreV2' {
-
-  include ::contrail::vrouter
-  # NOTE: it's not possible to use this class without a functional
-  # contrail controller up and running
-  #class {'::contrail::vrouter::provision_vrouter':
-  #  require => Class['contrail::vrouter'],
-  #}
-}
-elsif hiera('neutron::core_plugin') == 'networking_plumgrid.neutron.plugins.plugin.NeutronPluginPLUMgridV2' {
-  # forward all ipv4 traffic
-  # this is required for the vms to pass through the gateways public interface
-  sysctl::value { 'net.ipv4.ip_forward': value => '1' }
-
-  # ifc_ctl_pp needs to be invoked by root as part of the vif.py when a VM is powered on
-  file { '/etc/sudoers.d/ifc_ctl_sudoers':
-    ensure  => file,
-    owner   => root,
-    group   => root,
-    mode    => '0440',
-    content => "nova ALL=(root) NOPASSWD: /opt/pg/bin/ifc_ctl_pp *\n",
+  elsif hiera('neutron::core_plugin') == 'neutron_plugin_contrail.plugins.opencontrail.contrail_plugin.NeutronPluginContrailCoreV2' {
+
+    include ::contrail::vrouter
+    # NOTE: it's not possible to use this class without a functional
+    # contrail controller up and running
+    #class {'::contrail::vrouter::provision_vrouter':
+    #  require => Class['contrail::vrouter'],
+    #}
   }
-}
-else {
-
-  # NOTE: this code won't live in puppet-neutron until Neutron OVS agent
-  # can be gracefully restarted. See https://review.openstack.org/#/c/297211
-  # In the meantime, it's safe to restart the agent on each change in neutron.conf,
-  # because Puppet changes are supposed to be done during bootstrap and upgrades.
-  # Some resource managed by Neutron_config (like messaging and logging options) require
-  # a restart of OVS agent. This code does it.
-  # In Newton, OVS agent will be able to be restarted gracefully so we'll drop the code
-  # from here and fix it in puppet-neutron.
-  Neutron_config<||> ~> Service['neutron-ovs-agent-service']
-
-  include ::neutron::plugins::ml2
-  include ::neutron::agents::ml2::ovs
-
-  if 'cisco_n1kv' in hiera('neutron::plugins::ml2::mechanism_drivers') {
-    class { '::neutron::agents::n1kv_vem':
-      n1kv_source  => hiera('n1kv_vem_source', undef),
-      n1kv_version => hiera('n1kv_vem_version', undef),
+  elsif hiera('neutron::core_plugin') == 'networking_plumgrid.neutron.plugins.plugin.NeutronPluginPLUMgridV2' {
+    # forward all ipv4 traffic
+    # this is required for the vms to pass through the gateways public interface
+    sysctl::value { 'net.ipv4.ip_forward': value => '1' }
+
+    # ifc_ctl_pp needs to be invoked by root as part of the vif.py when a VM is powered on
+    file { '/etc/sudoers.d/ifc_ctl_sudoers':
+      ensure  => file,
+      owner   => root,
+      group   => root,
+      mode    => '0440',
+      content => "nova ALL=(root) NOPASSWD: /opt/pg/bin/ifc_ctl_pp *\n",
     }
   }
+  else {
+
+    # NOTE: this code won't live in puppet-neutron until Neutron OVS agent
+    # can be gracefully restarted. See https://review.openstack.org/#/c/297211
+    # In the meantime, it's safe to restart the agent on each change in neutron.conf,
+    # because Puppet changes are supposed to be done during bootstrap and upgrades.
+    # Some resource managed by Neutron_config (like messaging and logging options) require
+    # a restart of OVS agent. This code does it.
+    # In Newton, OVS agent will be able to be restarted gracefully so we'll drop the code
+    # from here and fix it in puppet-neutron.
+    Neutron_config<||> ~> Service['neutron-ovs-agent-service']
+
+    include ::neutron::plugins::ml2
+    include ::neutron::agents::ml2::ovs
+
+    if 'cisco_n1kv' in hiera('neutron::plugins::ml2::mechanism_drivers') {
+      class { '::neutron::agents::n1kv_vem':
+        n1kv_source  => hiera('n1kv_vem_source', undef),
+        n1kv_version => hiera('n1kv_vem_version', undef),
+      }
+    }
 
-  if 'bsn_ml2' in hiera('neutron::plugins::ml2::mechanism_drivers') {
-    include ::neutron::agents::bigswitch
+    if 'bsn_ml2' in hiera('neutron::plugins::ml2::mechanism_drivers') {
+      include ::neutron::agents::bigswitch
+    }
   }
-}
 
-neutron_config {
-  'DEFAULT/host': value => $fqdn;
-}
+  neutron_config {
+    'DEFAULT/host': value => $fqdn;
+  }
 
-include ::ceilometer
-include ::ceilometer::config
-include ::ceilometer::agent::compute
-include ::ceilometer::agent::auth
+  include ::ceilometer
+  include ::ceilometer::config
+  include ::ceilometer::agent::compute
+  include ::ceilometer::agent::auth
 
-$snmpd_user = hiera('snmpd_readonly_user_name')
-snmp::snmpv3_user { $snmpd_user:
-  authtype => 'MD5',
-  authpass => hiera('snmpd_readonly_user_password'),
-}
-class { '::snmp':
-  agentaddress => ['udp:161','udp6:[::1]:161'],
-  snmpd_config => [ join(['createUser ', hiera('snmpd_readonly_user_name'), ' MD5 "', hiera('snmpd_readonly_user_password'), '"']), join(['rouser ', hiera('snmpd_readonly_user_name')]), 'proc  cron', 'includeAllDisks  10%', 'master agentx', 'trapsink localhost public', 'iquerySecName internalUser', 'rouser internalUser', 'defaultMonitors yes', 'linkUpDownNotifications yes' ],
-}
+  $snmpd_user = hiera('snmpd_readonly_user_name')
+  snmp::snmpv3_user { $snmpd_user:
+    authtype => 'MD5',
+    authpass => hiera('snmpd_readonly_user_password'),
+  }
+  class { '::snmp':
+    agentaddress => ['udp:161','udp6:[::1]:161'],
+    snmpd_config => [ join(['createUser ', hiera('snmpd_readonly_user_name'), ' MD5 "', hiera('snmpd_readonly_user_password'), '"']), join(['rouser ', hiera('snmpd_readonly_user_name')]), 'proc  cron', 'includeAllDisks  10%', 'master agentx', 'trapsink localhost public', 'iquerySecName internalUser', 'rouser internalUser', 'defaultMonitors yes', 'linkUpDownNotifications yes' ],
+  }
 
-hiera_include('compute_classes')
-package_manifest{'/var/lib/tripleo/installed-packages/overcloud_compute': ensure => present}
+  hiera_include('compute_classes')
+  package_manifest{ '/var/lib/tripleo/installed-packages/overcloud_compute': ensure => present }
+
+}