Allow more tasks to be run in check mode

When running Ansible in check mode (aka dry run), some tasks need some
changes, specially around variables and make sure they are actually
defined.

Change-Id: I337aa287f1c88a0e2707b441fc6b19b997d52385

common/deploy-steps-tasks.yaml

@@ -45,6 +45,9 @@
   delay: 3
   failed_when:
     - (not puppet_host_outputs.finished) or (puppet_host_outputs.rc is defined and puppet_host_outputs.rc not in [0, 2])
+  when:
+    - not (ansible_check_mode | bool)
+    - enable_puppet|bool
   tags:
     - host_config
 

deployment/cinder/cinder-common-container-puppet.yaml

@@ -166,6 +166,8 @@ outputs:
                   vg: "cinder-volumes"
                   pvs: "{{ _loopback_device.stdout }}"
                   state: present
+                when:
+                  - not (ansible_check_mode | bool)
               - name: cinder create service to run losetup for LVM on startup
                 copy:
                   dest: /etc/systemd/system/cinder-lvm-losetup.service
@@ -186,6 +188,8 @@ outputs:
 
                     [Install]
                     WantedBy=local-fs-pre.target
+                when:
+                  - not (ansible_check_mode | bool)
               - name: cinder enable the LVM losetup service
                 systemd:
                   name: cinder-lvm-losetup

deployment/haproxy/haproxy-pacemaker-puppet.yaml

@@ -381,6 +381,8 @@ outputs:
           - name: set is_haproxy_bootstrap_node fact
             tags: common
             set_fact: is_haproxy_bootstrap_node={{haproxy_short_bootstrap_node_name|lower == ansible_hostname|lower}}
+            when:
+              - haproxy_short_bootstrap_node_name|default(false)
         - name: Mount TLS cert if needed
           when:
             - step|int == 1

deployment/haproxy/haproxy-public-tls-inject.yaml

@@ -86,6 +86,8 @@ outputs:
 
             - name: set is_haproxy_bootstrap_node fact
               set_fact: is_haproxy_bootstrap_node={{haproxy_short_bootstrap_node_name | lower == ansible_hostname | lower}}
+              when:
+                - haproxy_short_bootstrap_node_name|default(false)
 
             - name: get haproxy status
               register: haproxy_state

deployment/neutron/neutron-dhcp-container-puppet.yaml

@@ -399,7 +399,9 @@ outputs:
             - name: remove temp namespace
               command: ip netns delete ns_temp
               failed_when: false
-              when: ipnetns_add_result.rc == 0
+              when:
+                - ipnetns_add_result is defined
+                - ipnetns_add_result.rc == 0
             - name: create /var/lib/neutron
               file:
                 path: /var/lib/neutron

deployment/neutron/neutron-l3-container-puppet.yaml

@@ -340,7 +340,9 @@ outputs:
             - name: remove temp namespace
               command: ip netns delete ns_temp
               failed_when: false
-              when: ipnetns_add_result.rc == 0
+              when:
+                - ipnetns_add_result is defined
+                - ipnetns_add_result.rc == 0
             - name: create /var/lib/neutron
               file:
                 path: /var/lib/neutron

deployment/ovn/ovn-metadata-container-puppet.yaml

@@ -352,7 +352,9 @@ outputs:
             - name: remove temp namespace
               command: ip netns delete ns_temp
               failed_when: false
-              when: ipnetns_add_result.rc == 0
+              when:
+                - ipnetns_add_result is defined
+                - ipnetns_add_result.rc == 0
             - name: create /var/lib/neutron
               file:
                 path: /var/lib/neutron