Add cleanup process when using embedded ansible

When using the embedded ansible the deactivation process will now
cleanup after itself.

Change-Id: I5cf54d746e370c2886c49e0660f4e7b08ce05282
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>

elk_metrics_6x/bootstrap-embedded-ansible.sh

@@ -13,7 +13,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+export OPTS=()
 export ANSIBLE_EMBED_HOME="${HOME}/ansible25"
+OPTS+=('ANSIBLE_EMBED_HOME')
 
 if [[ ! -e "${ANSIBLE_EMBED_HOME}/bin/ansible" ]]; then
   apt-get update
@@ -51,21 +53,37 @@ EOF
   fi
 
   export USER_VARS="$(for i in $(ls -1 /etc/openstack_deploy/user_*secret*.yml); do echo -n "-e@$i "; done)"
+  OPTS+=('USER_VARS')
   echo "env USER_VARS set"
   echo "Extra users variables can be expanded by including the option \$USER_VARS on a playbook run."
 
   export ANSIBLE_INVENTORY="${ANSIBLE_EMBED_HOME}/inventory/openstack_inventory.sh"
+  OPTS+=('ANSIBLE_INVENTORY')
   echo "env ANSIBLE_INVENTORY set"
 fi
 
 export ANSIBLE_HOST_KEY_CHECKING="False"
+OPTS+=('ANSIBLE_HOST_KEY_CHECKING')
 echo "env ANSIBLE_HOST_KEY_CHECKING set"
 
 export ANSIBLE_ROLES_PATH="${ANSIBLE_EMBED_HOME}/repositories/roles"
+OPTS+=('ANSIBLE_ROLES_PATH')
 echo "env ANSIBLE_ACTION_PLUGINS set"
 
 export ANSIBLE_ACTION_PLUGINS="${ANSIBLE_EMBED_HOME}/repositories/ansible-config_template/action"
+OPTS+=('ANSIBLE_ACTION_PLUGINS')
 echo "env ANSIBLE_ROLES_PATH set"
 
 source ${ANSIBLE_EMBED_HOME}/bin/activate
 echo "Embedded Ansible has been activated. Run 'deactivate' to leave the embedded environment".
+
+function deactivate_embedded_venv {
+  deactivate
+  for i in ${OPTS[@]}; do
+    unset ${i}
+  done
+  unset deactivate_embedded_venv
+  unalias deactivate
+}
+
+alias deactivate=deactivate_embedded_venv

elk_metrics_6x/readme.rst

@@ -106,7 +106,7 @@ Create the containers
 .. code-block:: bash
 
    cd /opt/openstack-ansible/playbooks
-   openstack-ansible lxc-containers-create.yml -e 'container_group=elastic-logstash:kibana'
+   openstack-ansible lxc-containers-create.yml -e 'container_group=elastic-logstash:kibana:apm-server'
 
 
 Deploying | Installing with embedded Ansible
@@ -117,9 +117,9 @@ incompatible with these playbooks the script `bootstrap-embedded-ansible.sh` can
 be sourced to grab an embedded version of Ansible prior to executing the
 playbooks.
 
-``` bash
-source bootstrap-embedded-ansible.sh
-```
+.. code-block:: bash
+
+    source bootstrap-embedded-ansible.sh
 
 
 Deploying | Manually resolving the dependencies
@@ -131,9 +131,10 @@ the `bootstrap-ansible.sh` script these dependencies can be resolved with the
 
 * Example galaxy execution
 
-``` bash
-ansible-galaxy install -r ansible-role-requirements.yml
-```
+.. code-block:: bash
+
+    ansible-galaxy install -r ansible-role-requirements.yml
+
 
 Once the dependencies are set make sure to set the action plugin path to the
 location of the config_template action directory. This can be done using the
@@ -176,6 +177,15 @@ Included dashboards.
 * https://grafana.com/dashboards/5569
 * https://grafana.com/dashboards/5566
 
+Example command using the embedded Ansible from within the grafana directory.
+
+.. code-block:: bash
+
+    ansible-playbook ${USER_VARS} installGrafana.yml \
+                                  -e @../elk_metrics_6x/vars/variables.yml \
+                                  -e galera_root_user=root \
+                                  -e 'galera_address={{ internal_lb_vip_address }}'
+
 
 Trouble shooting
 ----------------