Add support for monitoring nodes

Currently these nodes are not deployed using kolla-ansible but use the
host provisioning and host OS configuration pieces of kayobe. The
monasca-deploy project is used to deploy the monitoring services.

ansible/dev-tools.yml

 ---
 - name: Ensure development tools are installed
-  hosts: seed:controllers
+  hosts: seed:overcloud
   roles:
     - role: dev-tools

ansible/disable-glean.yml

@@ -3,6 +3,6 @@
 # servers but gets in the way after this as it tries to enable all network
 # interfaces. In some cases this can lead to timeouts.
 - name: Ensure Glean is disabled and its artifacts are removed
-  hosts: seed:controllers
+  hosts: seed:overcloud
   roles:
     - role: disable-glean

ansible/disable-selinux.yml

 ---
 - name: Disable SELinux and reboot if required
-  hosts: controllers:seed
+  hosts: seed:overcloud
   roles:
     - role: disable-selinux
       disable_selinux_reboot_timeout: "{{ 600 if ansible_virtualization_role == 'host' else 300 }}"

ansible/drac-bios.yml

 ---
-- name: Ensure that controller BIOS are configured
-  hosts: controllers
+- name: Ensure that overcloud nodes' BIOS are configured
+  hosts: overcloud
   gather_facts: no
   vars:
     bios_config:

ansible/drac-boot-order.yml

 ---
-- name: Ensure that controller boot order is configured
-  hosts: controllers
+- name: Ensure that overcloud nodes' boot order is configured
+  hosts: overcloud
   gather_facts: no
   vars:
     ansible_host: "{{ ipmi_address }}"

ansible/drac-facts.yml

 ---
-- name: Ensure that controller BIOS are configured
-  hosts: controllers
+- name: Gather and display BIOS and RAID facts from iDRACs
+  hosts: overcloud
   gather_facts: no
   roles:
     # The role simply pulls in the drac_facts module.

ansible/group_vars/all/controllers

@@ -6,6 +6,21 @@
 # to setup the Kayobe user account.
 controller_bootstrap_user: "{{ lookup('env', 'USER') }}"
 
+###############################################################################
+# Controller network interface configuration.
+
+# List of default networks to which controller nodes are attached.
+controller_default_network_interfaces: >
+  {{ [provision_oc_net_name,
+      provision_wl_net_name,
+      internal_net_name,
+      external_net_name,
+      storage_net_name,
+      storage_mgmt_net_name] | unique | list }}
+
+# List of extra networks to which controller nodes are attached.
+controller_extra_network_interfaces: []
+
 ###############################################################################
 # Controller node BIOS configuration.
 

ansible/group_vars/all/monitoring

+---
+###############################################################################
+# Monitoring node configuration.
+
+# User with which to access the monitoring nodes via SSH during bootstrap, in
+# order to setup the Kayobe user account.
+monitoring_bootstrap_user: "{{ controller_bootstrap_user }}"
+
+###############################################################################
+# Monitoring node network interface configuration.
+
+# List of default networks to which monitoring nodes are attached.
+monitoring_default_network_interfaces: >
+  {{ [provision_oc_net_name,
+      internal_net_name,
+      external_net_name] | unique | list }}
+
+# List of extra networks to which monitoring nodes are attached.
+monitoring_extra_network_interfaces: []
+
+###############################################################################
+# Monitoring node BIOS configuration.
+
+# Dict of monitoring node BIOS options. Format is same as that used by
+# stackhpc.drac role.
+monitoring_bios_config: "{{ monitoring_bios_config_default | combine(monitoring_bios_config_extra) }}"
+
+# Dict of default monitoring node BIOS options. Format is same as that used by
+# stackhpc.drac role.
+monitoring_bios_config_default: "{{ controller_bios_config_default }}"
+
+# Dict of additional monitoring node BIOS options. Format is same as that used
+# by stackhpc.drac role.
+monitoring_bios_config_extra: "{{ controller_bios_config_extra }}"
+
+###############################################################################
+# Monitoring node RAID configuration.
+
+# List of monitoring node RAID volumes. Format is same as that used by
+# stackhpc.drac role.
+monitoring_raid_config: "{{ monitoring_raid_config_default + monitoring_raid_config_extra }}"
+
+# List of default monitoring node RAID volumes. Format is same as that used by
+# stackhpc.drac role.
+monitoring_raid_config_default: "{{ controller_raid_config_default }}"
+
+# List of additional monitoring node RAID volumes. Format is same as that used
+# by stackhpc.drac role.
+monitoring_raid_config_extra: "{{ controller_raid_config_extra }}"
+
+###############################################################################
+# Monitoring node LVM configuration.
+
+# List of monitoring node volume groups. See mrlesmithjr.manage-lvm role for
+# format.
+monitoring_lvm_groups: "{{ monitoring_lvm_groups_default + monitoring_lvm_groups_extra }}"
+
+# Default list of monitoring node volume groups. See mrlesmithjr.manage-lvm
+# role for format.
+monitoring_lvm_groups_default: "{{ controller_lvm_groups_default }}"
+
+# Additional list of monitoring node volume groups. See mrlesmithjr.manage-lvm
+# role for format.
+monitoring_lvm_groups_extra: "{{ controller_lvm_groups_extra }}"

ansible/group_vars/all/overcloud

+---
+###############################################################################
+# Overcloud configuration.
+
+# Default Ansible group for overcloud hosts if not present in
+# overcloud_group_hosts_map.
+overcloud_group_default: controllers
+
+# List of names of Ansible groups for overcloud hosts.
+overcloud_groups:
+  - controllers
+  - monitoring
+
+# Dict mapping overcloud Ansible group names to lists of hosts in the group.
+# As a special case, the group 'ignore' can be used to specify hosts that
+# should not be added to the inventory.
+overcloud_group_hosts_map: {}

ansible/group_vars/controllers/bios

+---
+###############################################################################
+# Controller node BIOS configuration.
+
+# Dict of monitoring node BIOS options. Format is same as that used by
+# stackhpc.drac role.
+bios_config: "{{ controller_bios_config }}"

ansible/group_vars/controllers/network

@@ -6,15 +6,3 @@
 network_interfaces: >
   {{ (controller_default_network_interfaces +
       controller_extra_network_interfaces) | unique | list }}
-
-# List of default networks to which controller nodes are attached.
-controller_default_network_interfaces: >
-  {{ [provision_oc_net_name,
-      provision_wl_net_name,
-      internal_net_name,
-      external_net_name,
-      storage_net_name,
-      storage_mgmt_net_name] | unique | list }}
-
-# List of extra networks to which controller nodes are attached.
-controller_extra_network_interfaces: []

ansible/group_vars/controllers/raid

+---
+###############################################################################
+# Controller node RAID configuration.
+
+# List of controller node RAID volumes. Format is same as that used by
+# stackhpc.drac role.
+raid_config: "{{ controller_raid_config }}"

ansible/group_vars/monitoring/ansible-user

+---
+# User with which to access the monitoring nodes via SSH.
+ansible_user: "{{ kayobe_ansible_user }}"
+
+# User with which to access the monitoring nodes before the kayobe_ansible_user
+# account has been created.
+bootstrap_user: "{{ monitoring_bootstrap_user }}"

ansible/group_vars/monitoring/bios

+---
+###############################################################################
+# Monitoring node BIOS configuration.
+
+# Dict of monitoring node BIOS options. Format is same as that used by
+# stackhpc.drac role.
+bios_config: >
+  {{ controller_bios_config
+     if inventory_hostname in groups['controllers'] else
+     monitoring_bios_config }}

ansible/group_vars/monitoring/lvm

+---
+###############################################################################
+# Monitoring node LVM configuration.
+
+# List of LVM volume groups.
+lvm_groups: >
+  {{ controller_lvm_groups
+     if inventory_hostname in groups['controllers'] else
+     monitoring_lvm_groups }}

ansible/group_vars/monitoring/network

+---
+###############################################################################
+# Network interface attachments.
+
+# List of networks to which these nodes are attached.
+network_interfaces: >
+  {{ (controller_default_network_interfaces +
+      controller_extra_network_interfaces) | unique | list
+     if inventory_hostname in groups['controllers'] else
+     (monitoring_default_network_interfaces +
+      monitoring_extra_network_interfaces) | unique | list }}

ansible/group_vars/monitoring/raid

+---
+###############################################################################
+# Monitoring node RAID configuration.
+
+# List of monitoring node RAID volumes. Format is same as that used by
+# stackhpc.drac role.
+raid_config: >
+  {{ controller_raid_config
+     if inventory_hostname in groups['controllers'] else
+     monitoring_raid_config }}

ansible/group_vars/controllers/ansible-host → ansible/group_vars/overcloud/ansible-host

 ---
-# Host/IP with which to access the controllers via SSH.
+# Host/IP with which to access the overcloud nodes via SSH.
 ansible_host: "{{ provision_oc_net_name | net_ip }}"

ansible/ip-allocation.yml

 ---
 - name: Ensure IP addresses are allocated
-  hosts: seed:controllers
+  hosts: seed:overcloud
   gather_facts: no
   pre_tasks:
     - name: Initialise the IP allocations fact

ansible/ip-routing.yml

@@ -2,6 +2,6 @@
 # Enable IP routing in the kernel.
 
 - name: Ensure IP routing is enabled
-  hosts: seed:controllers
+  hosts: seed:overcloud
   roles:
     - role: ip-routing