Add KOLLA_BOOTSTRAP=True to 2 bootstrap containers

keystone_bootstrap and mysql_sync_credentials are containers which need
to be run on the bootstrap node only, there is no need to run them on
other controllers. It avoids useless verbosity when they fail to
execute.

Change-Id: I4acf992e41f60a5462f8fa35964c051ca15895ba
Closes-Bug: #1840999

deployment/database/mysql-container-puppet.yaml

@@ -210,6 +210,8 @@ outputs:
             user: root
             command:
               [ 'mysql', '/bin/bash', '-c', 'cp /var/lib/kolla/config_files/src/root/.my.cnf /root' ]
+            environment:
+              - KOLLA_BOOTSTRAP=True
       container_puppet_tasks:
         # MySQL database initialization occurs only on single node
         step_2:

deployment/keystone/keystone-container-puppet.yaml

@@ -747,6 +747,8 @@ outputs:
             user: root
             command:
               [ 'keystone', '/usr/bin/bootstrap_host_exec', 'keystone' ,'keystone-manage', 'bootstrap', '--bootstrap-password', {get_param: AdminPassword} ]
+            environment:
+              - KOLLA_BOOTSTRAP=True
           keystone_cron:
             start_order: 4
             image: *keystone_image