Validate system restart policy during pre-upgrade.

This was done far into the process potentially leaving the user in a
difficult situation if they had now considered they were running the
upgrade playbook on a host that would be restarted. Instead check
configuration and what host we're running on in pre-upgrade and allow
the user to abort before making any substantial changes.

This is a step towards merging master upgrade into one serial process.

playbooks/byo/openshift-cluster/upgrades/v3_3/upgrade.yml

@@ -66,6 +66,10 @@
   tags:
   - pre_upgrade
 
+- include: ../../../../common/openshift-master/validate_restart.yml
+  tags:
+  - pre_upgrade
+
 - include: ../../../../common/openshift-cluster/upgrades/pre/verify_upgrade_targets.yml
   tags:
   - pre_upgrade

playbooks/byo/openshift-cluster/upgrades/v3_3/upgrade_control_plane.yml

@@ -71,6 +71,10 @@
   tags:
   - pre_upgrade
 
+- include: ../../../../common/openshift-master/validate_restart.yml
+  tags:
+  - pre_upgrade
+
 - include: ../../../../common/openshift-cluster/upgrades/pre/verify_upgrade_targets.yml
   tags:
   - pre_upgrade

playbooks/byo/openshift-cluster/upgrades/v3_4/upgrade.yml

@@ -66,6 +66,10 @@
   tags:
   - pre_upgrade
 
+- include: ../../../../common/openshift-master/validate_restart.yml
+  tags:
+  - pre_upgrade
+
 - include: ../../../../common/openshift-cluster/upgrades/pre/verify_upgrade_targets.yml
   tags:
   - pre_upgrade

playbooks/byo/openshift-cluster/upgrades/v3_4/upgrade_control_plane.yml

@@ -71,6 +71,10 @@
   tags:
   - pre_upgrade
 
+- include: ../../../../common/openshift-master/validate_restart.yml
+  tags:
+  - pre_upgrade
+
 - include: ../../../../common/openshift-cluster/upgrades/pre/verify_upgrade_targets.yml
   tags:
   - pre_upgrade

playbooks/byo/openshift-master/restart.yml

@@ -15,4 +15,6 @@
   tasks:
   - include_vars: ../../byo/openshift-cluster/cluster_hosts.yml
 
+- include: ../../common/openshift-cluster/evaluate_groups.yml
+- include: ../../common/openshift-master/validate_restart.yml
 - include: ../../common/openshift-master/restart.yml

playbooks/common/openshift-master/restart.yml

@@ -1,71 +1,4 @@
 ---
-- include: ../openshift-cluster/evaluate_groups.yml
-
-- name: Validate configuration for rolling restart
-  hosts: oo_masters_to_config
-  roles:
-  - openshift_facts
-  tasks:
-  - fail:
-      msg: "openshift_rolling_restart_mode must be set to either 'services' or 'system'"
-    when: openshift_rolling_restart_mode is defined and openshift_rolling_restart_mode not in ["services", "system"]
-  - openshift_facts:
-      role: "{{ item.role }}"
-      local_facts: "{{ item.local_facts }}"
-    with_items:
-    - role: common
-      local_facts:
-        rolling_restart_mode: "{{ openshift_rolling_restart_mode | default('services') }}"
-    - role: master
-      local_facts:
-        cluster_method: "{{ openshift_master_cluster_method | default(None) }}"
-
-# Creating a temp file on localhost, we then check each system that will
-# be rebooted to see if that file exists, if so we know we're running
-# ansible on a machine that needs a reboot, and we need to error out.
-- name: Create temp file on localhost
-  hosts: localhost
-  connection: local
-  become: no
-  gather_facts: no
-  tasks:
-  - local_action: command mktemp
-    register: mktemp
-    changed_when: false
-
-- name: Check if temp file exists on any masters
-  hosts: oo_masters_to_config
-  tasks:
-  - stat: path="{{ hostvars.localhost.mktemp.stdout }}"
-    register: exists
-    changed_when: false
-
-- name: Cleanup temp file on localhost
-  hosts: localhost
-  connection: local
-  become: no
-  gather_facts: no
-  tasks:
-  - file: path="{{ hostvars.localhost.mktemp.stdout }}" state=absent
-    changed_when: false
-
-- name: Warn if restarting the system where ansible is running
-  hosts: oo_masters_to_config
-  tasks:
-  - pause:
-      prompt: >
-        Warning: Running playbook from a host that will be restarted!
-        Press CTRL+C and A to abort playbook execution. You may
-        continue by pressing ENTER but the playbook will stop
-        executing after this system has been restarted and services
-        must be verified manually. To only restart services, set
-        openshift_master_rolling_restart_mode=services in host
-        inventory and relaunch the playbook.
-    when: exists.stat.exists and openshift.common.rolling_restart_mode == 'system'
-  - set_fact:
-      current_host: "{{ exists.stat.exists }}"
-    when: openshift.common.rolling_restart_mode == 'system'
-
 - name: Restart masters
   hosts: oo_masters_to_config
   vars:

playbooks/common/openshift-master/restart_services.yml

@@ -8,14 +8,14 @@
   service:
     name: "{{ openshift.common.service_type }}-master-api"
     state: restarted
-  when: openshift_master_ha | bool and openshift.master.cluster_method != 'pacemaker'
+  when: openshift_master_ha | bool
 - name: Wait for master API to come back online
   wait_for:
     host: "{{ openshift.common.hostname }}"
     state: started
     delay: 10
     port: "{{ openshift.master.api_port }}"
-  when: openshift_master_ha | bool and openshift.master.cluster_method != 'pacemaker'
+  when: openshift_master_ha | bool
 - name: Restart master controllers
   service:
     name: "{{ openshift.common.service_type }}-master-controllers"
@@ -23,4 +23,4 @@
   # Ignore errrors since it is possible that type != simple for
   # pre-3.1.1 installations.
   ignore_errors: true
-  when: openshift_master_ha | bool and openshift.master.cluster_method != 'pacemaker'
+  when: openshift_master_ha | bool

playbooks/common/openshift-master/validate_restart.yml

@@ -0,0 +1,65 @@
+---
+- name: Validate configuration for rolling restart
+  hosts: oo_masters_to_config
+  roles:
+  - openshift_facts
+  tasks:
+  - fail:
+      msg: "openshift_rolling_restart_mode must be set to either 'services' or 'system'"
+    when: openshift_rolling_restart_mode is defined and openshift_rolling_restart_mode not in ["services", "system"]
+  - openshift_facts:
+      role: "{{ item.role }}"
+      local_facts: "{{ item.local_facts }}"
+    with_items:
+    - role: common
+      local_facts:
+        rolling_restart_mode: "{{ openshift_rolling_restart_mode | default('services') }}"
+    - role: master
+      local_facts:
+        cluster_method: "{{ openshift_master_cluster_method | default(None) }}"
+
+# Creating a temp file on localhost, we then check each system that will
+# be rebooted to see if that file exists, if so we know we're running
+# ansible on a machine that needs a reboot, and we need to error out.
+- name: Create temp file on localhost
+  hosts: localhost
+  connection: local
+  become: no
+  gather_facts: no
+  tasks:
+  - local_action: command mktemp
+    register: mktemp
+    changed_when: false
+
+- name: Check if temp file exists on any masters
+  hosts: oo_masters_to_config
+  tasks:
+  - stat: path="{{ hostvars.localhost.mktemp.stdout }}"
+    register: exists
+    changed_when: false
+
+- name: Cleanup temp file on localhost
+  hosts: localhost
+  connection: local
+  become: no
+  gather_facts: no
+  tasks:
+  - file: path="{{ hostvars.localhost.mktemp.stdout }}" state=absent
+    changed_when: false
+
+- name: Warn if restarting the system where ansible is running
+  hosts: oo_masters_to_config
+  tasks:
+  - pause:
+      prompt: >
+        Warning: Running playbook from a host that will be restarted!
+        Press CTRL+C and A to abort playbook execution. You may
+        continue by pressing ENTER but the playbook will stop
+        executing after this system has been restarted and services
+        must be verified manually. To only restart services, set
+        openshift_master_rolling_restart_mode=services in host
+        inventory and relaunch the playbook.
+    when: exists.stat.exists and openshift.common.rolling_restart_mode == 'system'
+  - set_fact:
+      current_host: "{{ exists.stat.exists }}"
+    when: openshift.common.rolling_restart_mode == 'system'