Check if this role is deployed as part of the cluster

This makes it possible to deploy a galara cluster in one set of hosts
and a separate stand alone mariadb on another host.

gcc-site.yml

@@ -1,14 +1,14 @@
 ---
-- include: common.yml
-- include: rabbitmq.yml
-- include: memcached.yml
-- include: mariadb.yml
-- include: keystone.yml
-- include: glance-controller.yml
-- include: nova-controller.yml
-- include: neutron-controller.yml
-- include: cinder-controller.yml
-- include: cinder-storage.yml
-- include: nova-compute.yml
-- include: horizon.yml
-- include: gcc-post-install.yml
+- import_tasks: common.yml
+- import_tasks: rabbitmq.yml
+- import_tasks: memcached.yml
+- import_tasks: mariadb.yml
+- import_tasks: keystone.yml
+- import_tasks: glance-controller.yml
+- import_tasks: nova-controller.yml
+- import_tasks: neutron-controller.yml
+- import_tasks: cinder-controller.yml
+- import_tasks: cinder-storage.yml
+- import_tasks: nova-compute.yml
+- import_tasks: horizon.yml
+- import_tasks: gcc-post-install.yml

nuke.yml

@@ -1,10 +1,13 @@
 ---
+# This playbook will reset the instalation to facilitate a new installation.
+# All data is lost!
 - hosts: all
   become: True
   name: Dummy to gather facts
   tasks:
-    - shell: "systemctl stop docker"
     - name: Stop docker service
+      shell: "systemctl stop docker"
+    - name: Verify docker is stopped.
       systemd:
         name: docker
         state: stopped

roles/common/tasks/main.yml

@@ -5,7 +5,7 @@
 - name: Passwordless sudo for admins
   lineinfile: dest=/etc/sudoers line="%admin  ALL=(ALL:ALL) NOPASSWD:ALL"
 
-- include: users.yml
+- import_tasks: users.yml
 
 - name: common | install packages
   apt: pkg={{ item }} state=latest update_cache=yes
@@ -26,4 +26,4 @@
     owner: root
     group: root
 
-- include: docker.yml
+- import_tasks: docker.yml

roles/horizon/templates/horizon.service

@@ -1,5 +1,5 @@
 [Unit]
-Description=Openstack Glance Container
+Description=Openstack Horizon Container
 After=docker.service
 Requires=docker.service
 

roles/keystone/tasks/main.yml

@@ -52,7 +52,7 @@
   delay: 3
   ignore_errors: yes
 
-- name: keystone manage commands to setup db
+- name: keystone manage commands to setup db_sync
   command: >
              /usr/bin/docker run --rm
              --add-host=mariadb:{{ listen_ip | default(hostvars[groups['databases'][0]]['ansible_default_ipv4']['address']) }}
@@ -69,6 +69,11 @@
                     --bootstrap-internal-url http://{{ listen_ip | default(hostvars[groups['keystone'][0]]['ansible_default_ipv4']['address']) }}:35357/v3/
                     --bootstrap-public-url http://{{ listen_ip | default(hostvars[groups['keystone'][0]]['ansible_default_ipv4']['address']) }}:5000/v3/
                     --bootstrap-region-id RegionOne
+  # sometimes the initial connect fails.
+  # Retry until it succeeds.
+  retries: 7
+  delay: 3
+  ignore_errors: yes
 
 - name: make sure service is started
   systemd:
@@ -85,12 +90,18 @@
              -e "OS_AUTH_URL=http://${KEYSTONE_HOST}:35357/v3"
              -e "OS_PASSWORD={{ secrets['OS_PASSWORD'] }}"
              {{ docker_image }} bash /etc/bootstrap.sh
+  register: result
+  retries: 7
+  delay: 3
 
+- name: install openstack repo host key.
+  command: apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 5EDB1B62EC4926EA
+  tags: openstackclient
 
 - name: install openstack repo on host.
-  command: >
-      echo "deb http://ubuntu-cloud.archive.canonical.com/ubuntu xenial-updates/ocata main" > /etc/apt/sources.list.d/ocata.list &&
-      apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 5EDB1B62EC4926EA
+  apt_repository:
+      repo: "deb http://ubuntu-cloud.archive.canonical.com/ubuntu xenial-updates/ocata main"
+      filename: ocata
   tags: openstackclient
 
 - name: install openstack client for management

roles/mariadb/tasks/main.yml

@@ -21,12 +21,14 @@
     dest: /srv/mariadb/etc/mysql/conf.d/my.cnf
     mode: 660
 
-- name: Set galara.cnf on node if we have at least three nodes.
+- name: >
+        Set galara.cnf on node if we have at least three nodes.
+        And we're part of the cluster.
   template:
     src: files/galera.cnf
     dest: /srv/mariadb/etc/mysql/conf.d/galera.cnf
     mode: 660
-  when: groups['databases'] | length >= 3
+  when: "'databases' in group_names and groups['databases'] | length >= 3"
 
   # This mimics galera_new_cluster.sh
 - name: Initialize a new cluster.
@@ -47,7 +49,8 @@
         name: mysql.service
         state: started
 
-  when: groups['databases'] | length >= 3 and ansible_hostname == hostname_node0
+  when: "'databases' in group_names and groups['databases'] \
+         | length >= 3 and ansible_hostname == hostname_node0"
 
 - name: install service file.
   block:
@@ -61,12 +64,22 @@
         group: root
 
 - name: Give the master node some time to initialize the cluster.
-  command: bash -c "sleep 60 && systemctl daemon-reload"
+  command: bash -c "sleep 60"
+  when: "'databases' in group_names and groups['databases'] \
+         | length >= 3"
+
+- name: Daemon reload (the implicit doesn't work)
+  command: bash -c "systemctl daemon-reload"
 
 - name: make sure service is started
   systemd:
     name: mysql.service
     state: started
+    daemon_reload: yes
 
 - name: start service at boot.
   command: systemctl reenable mysql.service
+
+- name: Give the cluster some time to initialize replication.
+  command: bash -c "sleep 60 && systemctl daemon-reload"
+  when: "'databases' in group_names and groups['databases'] | length >= 3"

site.yml

@@ -1,15 +1,15 @@
 ---
-- include: common.yml
-- include: rabbitmq.yml
-- include: memcached.yml
-- include: mariadb.yml
-- include: keystone.yml
-- include: glance-controller.yml
-- include: nova-controller.yml
-- include: neutron-controller.yml
-- include: cinder-controller.yml
-- include: cinder-storage.yml
-- include: nova-compute.yml
-- include: horizon.yml
-- include: heat.yml
-- include: post-install.yml
+- import_playbook: common.yml
+- import_playbook: rabbitmq.yml
+- import_playbook: memcached.yml
+- import_playbook: mariadb.yml
+- import_playbook: keystone.yml
+- import_playbook: glance-controller.yml
+- import_playbook: nova-controller.yml
+- import_playbook: neutron-controller.yml
+- import_playbook: cinder-controller.yml
+- import_playbook: cinder-storage.yml
+- import_playbook: nova-compute.yml
+- import_playbook: horizon.yml
+- import_playbook: heat.yml
+- import_playbook: post-install.yml

test_hosts

@@ -1,36 +1,48 @@
 [databases]
-ansible-test
-ansible-test-2
-ansible-test-3
+openstack-test05
+openstack-test06
+openstack-test07
 
 [keystone]
-ansible-test-3
+openstack-test05
 
 [glance-controller]
-ansible-test-2
+openstack-test05
 
 [horizon]
-ansible-test-3
+openstack-test05
 
 [rabbitmq]
-ansible-test
-ansible-test-2
-ansible-test-3
-
-[cinder-storage]
-ansible-test
+openstack-test05
+openstack-test06
+openstack-test07
 
 [memcached]
-ansible-test-3
+openstack-test05
 
 [neutron-controller]
-ansible-test physical_interface_mappings=provider:ens10
+openstack-test05 physical_interface_mappings=provider:enp4s0f0
 
 [nova-controller]
-ansible-test
+openstack-test05
 
-[nova-compute]
-ansible-test-2 physical_interface_mappings=provider:ens10
+[cinder-controller]
+openstack-test05
 
 [heat]
-ansible-test
+openstack-test05
+
+[cinder-storage]
+openstack-test05 storage_volume=/dev/openstack-test05-vg/cinder
+openstack-test06 storage_volume=/dev/openstack-test06-vg/cinder
+openstack-test07 storage_volume=/dev/openstack-test07-vg/cinder
+openstack-test08 storage_volume=/dev/openstack-test08-vg/cinder
+openstack-test09 storage_volume=/dev/openstack-test09-vg/cinder
+openstack-test10 storage_volume=/dev/openstack-test10-vg/cinder
+
+[nova-compute]
+openstack-test06 physical_interface_mappings=provider:enp4s0f0
+openstack-test07 physical_interface_mappings=provider:enp4s0f0
+openstack-test08 physical_interface_mappings=provider:enp4s0f0
+openstack-test09 physical_interface_mappings=provider:enp4s0f0
+openstack-test10 physical_interface_mappings=provider:enp4s0f0