[Tooling update] health_checks

* Added:

- Retrieve docker containers list on target server
- Retrieve entropy size for host
- Check entropy size on all nodes

Related-Prod: PROD-29236

Change-Id: I3c6aee4a6ff47f988baa3e1cc4aab09b80f112c4
diff --git a/README.rst b/README.rst
index 9ef87d1..d97a47d 100644
--- a/README.rst
+++ b/README.rst
@@ -781,6 +781,13 @@
   salt-call health_checks.docker_registry_list s-apt01:5000
   salt-call health_checks.docker_registry_list http://127.0.0.1:5000
 
+Retrieve docker containers list on target server:
+
+.. code-block:: bash
+
+  salt -C 'cid01*' health_checks.docker_ps
+  salt -C 'cid01*' health_checks.docker_ps list_all=1
+
 Retrieve glusterfs pool list:
 
 .. code-block:: bash
@@ -807,6 +814,19 @@
   salt-call health_checks.gluster_volumes_check
   salt-call health_checks.gluster_volumes_check expected_size=1 ignore_volumes=['/srv/volumes/aptly']
 
+Retrieve entropy size for host:
+
+.. code-block:: bash
+
+  salt -C 'msg02*' health_checks.get_entropy
+
+Check entropy size on all nodes:
+
+.. code-block:: bash
+
+  salt-call health_checks.entropy_check
+  salt-call health_checks.entropy_check minimum_bits=1000
+
 
 Encrypted pillars
 ~~~~~~~~~~~~~~~~~