Update the playbook serial settings

Many of our playbooks enfore the serial deployment of services. While
this is useful in certain cases It's super slow on large scale
deployments. This change modifies our serial settings so that many of
the services are deployed against 1 node first and then all the rest of
the services where it makes.

Change-Id: I842e98ebc29e0da0c3d7af3fd1d7f5592dfb3aa3
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>
(cherry picked from commit eb81d64351)

playbooks/os-cinder-install.yml

@@ -78,7 +78,7 @@
   include: common-playbooks/cinder.yml
   vars:
     cinder_hosts: "cinder_volume:!cinder_scheduler:!cinder_api"
-    cinder_serial: "{{ cinder_backend_serial | default('1') }}"
+    cinder_serial: "{{ cinder_backend_serial | default('1', '100%') }}"
 
 
 
@@ -86,7 +86,7 @@
   include: common-playbooks/cinder.yml
   vars:
     cinder_hosts: "cinder_backup:!cinder_volume:!cinder_scheduler:!cinder_api"
-    cinder_serial: "{{ cinder_backend_serial | default('1') }}"
+    cinder_serial: "{{ cinder_backend_serial | default(['1', '100%']) }}"
 
 
 
@@ -97,7 +97,6 @@
 - name: Refresh local facts after all software changes are made
   hosts: cinder_all
   gather_facts: no
-  max_fail_percentage: 20
   user: root
   environment: "{{ deployment_environment_variables | default({}) }}"
   tags:
@@ -140,7 +139,7 @@
 - name: Restart cinder agents to ensure new RPC object version is used
   hosts: cinder_backup,cinder_volume,cinder_scheduler
   gather_facts: no
-  serial: "{{ cinder_backend_serial | default('1') }}"
+  serial: "{{ cinder_backend_serial | default(['1', '100%']) }}"
   max_fail_percentage: 20
   user: root
   environment: "{{ deployment_environment_variables | default({}) }}"

playbooks/os-neutron-install.yml

@@ -31,7 +31,6 @@
 - name: Prepare MQ/DB services
   hosts: neutron_all
   gather_facts: no
-  max_fail_percentage: 20
   user: root
   environment: "{{ deployment_environment_variables | default({}) }}"
   tags:
@@ -87,7 +86,7 @@
   include: common-playbooks/neutron.yml
   vars:
     neutron_hosts: "neutron_linuxbridge_agent:neutron_openvswitch_agent:!neutron_server"
-    neutron_serial: "{{ neutron_agent_serial | default('20%') }}"
+    neutron_serial: "{{ neutron_agent_serial | default('50%') }}"
 
 
 
@@ -95,4 +94,4 @@
   include: common-playbooks/neutron.yml
   vars:
     neutron_hosts: "neutron_all:!neutron_linuxbridge_agent:!neutron_openvswitch_agent:!neutron_server"
-    neutron_serial: "{{ neutron_other_serial | default('1') }}"
+    neutron_serial: "{{ neutron_other_serial | default('20%') }}"

playbooks/os-nova-install.yml

@@ -123,7 +123,7 @@
   include: common-playbooks/nova.yml
   vars:
     nova_hosts: "nova_compute:!nova_conductor:!nova_scheduler:!nova_consoleauth:!nova_api_os_compute:!nova_api_placement:!nova_api_metadata:!nova_console"
-    nova_serial: "{{ nova_compute_serial | default('20%') }}"
+    nova_serial: "{{ nova_compute_serial | default('50%') }}"
 
 
 

playbooks/rabbitmq-install.yml

@@ -38,7 +38,6 @@
 # http://www.rabbitmq.com/clustering.html#upgrading
 - name: Stop RabbitMQ nodes that are not the upgrader
   hosts: "{{ rabbitmq_host_group | default('rabbitmq_all') }}[1:]"
-  serial: 1
   max_fail_percentage: 0
   user: root
   tasks:
@@ -50,7 +49,7 @@
 
 - name: Install rabbitmq server
   hosts: "{{ rabbitmq_host_group | default('rabbitmq_all') }}"
-  serial: 1
+  serial: 20%
   max_fail_percentage: 20
   user: root
   roles: