tripleo-container-manage: provide more debug doc

Provide a command that doesn't use playbook to debug a container, just
pure Ansible CLI.

Change-Id: Ie6c29df1ec70d97ad22f9c71c4f35a8928c8f160

doc/source/roles/role-tripleo-container-manage.rst

@@ -1,9 +1,9 @@
 ===============================
-Role - tripleo-container-manage
+Role - tripleo_container_manage
 ===============================
 
 .. ansibleautoplugin::
-  :role: tripleo_ansible/roles/tripleo-container-manage
+  :role: tripleo_ansible/roles/tripleo_container_manage
 
 Usage
 ~~~~~
@@ -75,7 +75,7 @@ This Ansible role allows to do the following tasks:
       block:
         - name: "Manage containers for step 1 with tripleo-ansible"
           include_role:
-            name: tripleo-container-manage
+            name: tripleo_container_manage
           vars:
             tripleo_container_manage_systemd_order: true
             tripleo_container_manage_config: "/var/lib/tripleo-config/container-startup-config/step_1"
@@ -145,7 +145,7 @@ overrides the image setting in one-off.
           block:
             - name: "Manage HAproxy container at step 1 with tripleo-ansible"
               include_role:
-                name: tripleo-container-manage
+                name: tripleo_container_manage
               vars:
                 tripleo_container_manage_systemd_order: true
                 tripleo_container_manage_config_patterns: 'hashed-haproxy.json'
@@ -155,6 +155,18 @@ overrides the image setting in one-off.
                   haproxy:
                     image: docker.io/tripleomaster/centos-binary-haproxy:hotfix
 
+The same can be achieved with this command:
+
+.. code-block:: bash
+
+    ansible -m include_role -a role=tripleo_container_manage \
+        -e tripleo_container_manage_systemd_order=True \
+        -e tripleo_container_manage_config_patterns='haproxy.json' \
+        -e tripleo_container_manage_config='/var/lib/tripleo-config/container-startup-config/step_1' \
+        -e tripleo_container_manage_config_id='tripleo_step1' \
+        -e tripleo_container_manage_config_overrides="{'haproxy': {'image': 'docker.io/tripleomaster/centos-binary-haproxy:hotfix'}}" \
+        --become --one-line localhost
+
 If Ansible is run in check mode, no container will be removed nor created,
 however at the end of the playbook a list of commands will be displayed to show
 what would have been run.