Add EnablePuppet (defaults to true)

This wires in a heat parameter that can be used to disable the
baremetal (Puppet) deployment tasks. Useful for testing
some lightweight/containers only deployments.

Change-Id: I376418c618616b7755fafefa80fea8150cf16b99

common/deploy-steps-tasks.yaml

@@ -134,11 +134,14 @@
     - name: Set host puppet debugging fact string
       set_fact:
         host_puppet_config_debug: "--debug --verbose"
-      when: enable_debug|default(false)|bool
+      when:
+      - enable_puppet|default(true)|bool
+      - enable_debug|default(false)|bool
     - name: Write the config_step hieradata
       copy: content="{{dict(step=step|int)|to_json}}" dest=/etc/puppet/hieradata/config_step.json force=true mode=0600
       become: true
     - name: Run puppet host configuration for step {{step}}
+      when: enable_puppet|default(true)|bool
       command: >-
         puppet apply {{ host_puppet_config_debug|default('') }}
         --modulepath=/etc/puppet/modules:/opt/stack/puppet-modules:/usr/share/openstack-puppet/modules
@@ -154,7 +157,9 @@
       become: true
     - name: "Debug output for task which failed: Run puppet host configuration for step {{step}}"
       debug: var=outputs.stdout_lines|default([])|union(outputs.stderr_lines|default([]))
-      when: outputs.rc is defined
+      when:
+      - enable_puppet|default(true)|bool
+      - outputs.rc is defined
       failed_when: outputs.rc not in [0, 2]
     ######################################
     # Generate config via docker-puppet.py

common/deploy-steps.j2

@@ -55,6 +55,10 @@ parameters:
     default: false
     description: Whether to run config management (e.g. Puppet) in debug mode.
     type: boolean
+  EnablePuppet:
+    default: true
+    description: Whether to run the puppet (baremetal) deployment tasks.
+    type: boolean
   DockerPuppetDebug:
     type: string
     default: ''
@@ -105,6 +109,7 @@ resources:
         - name: update_identifier
         - name: bootstrap_server_id
         - name: enable_debug
+        - name: enable_puppet
         - name: docker_puppet_debug
         - name: docker_puppet_process_count
         - name: role_data_step_config
@@ -323,6 +328,7 @@ resources:
         update_identifier: {get_param: DeployIdentifier}
         bootstrap_server_id: {get_attr: [BootstrapServerId, value]}
         enable_debug: {get_param: ConfigDebug}
+        enable_puppet: {get_param: EnablePuppet}
         docker_puppet_debug: {get_param: DockerPuppetDebug}
         docker_puppet_process_count: {get_param: DockerPuppetProcessCount}
         role_data_step_config: {get_param: [role_data, {{role.name}}, step_config]}