Introduce 'enable_validations' option

When enabled, install required validations user and packages to run the
TripleO validations on the undercloud via puppet.

Change-Id: I67868246ae861018e517409a9e579055b2a55d87
Depends-On: Ib2b1ddcda3a41cb7263171d3024f05ba8bfd2f28

elements/puppet-stack-config/puppet-stack-config.pp

@@ -486,6 +486,10 @@ if str2bool(hiera('enable_ui', true)) {
   include ::tripleo::profile::base::ui
 }
 
+if str2bool(hiera('enable_validations', false)) {
+  include ::tripleo::profile::base::validations
+}
+
 if str2bool(hiera('enable_zaqar', true)) {
   include ::mongodb::globals
   include ::mongodb::server

elements/puppet-stack-config/puppet-stack-config.yaml.template

@@ -582,6 +582,7 @@ mistral::keystone_tenant: 'service'
 enable_tempest: {{ENABLE_TEMPEST}}
 enable_mistral: {{ENABLE_MISTRAL}}
 enable_zaqar: {{ENABLE_ZAQAR}}
+enable_validations: {{ENABLE_VALIDATIONS}}
 enable_telemetry: {{ENABLE_TELEMETRY}}
 enable_ui: {{ENABLE_UI}}
 ipxe_deploy: {{IPXE_DEPLOY}}

instack_undercloud/undercloud.py

@@ -296,6 +296,11 @@ _opts = [
                 default=True,
                 help=('Whether to install the TripleO UI.')
                 ),
+    cfg.BoolOpt('enable_validations',
+                default=False,
+                help=('Whether to install requirements to run the TripleO '
+                      'validations.')
+                ),
     cfg.BoolOpt('ipxe_deploy',
                 default=True,
                 help=('Whether to use iPXE for deploy by default.')

undercloud.conf.sample

@@ -157,6 +157,10 @@
 # (boolean value)
 #enable_ui = true
 
+# Whether to install requirements to run the TripleO validations.
+# (boolean value)
+#enable_validations = false
+
 # Whether to use iPXE for deploy by default. (boolean value)
 #ipxe_deploy = true