[Lib] Adding function to check the Gluster version

The function will return the gluster version in float for the host
it is called on. It accepts the host IP as a parameter.

Change-Id: Icf48cf41031f0fa06cf3864e9215c5a960bb7c64
Signed-off-by: sayaleeraut <saraut@redhat.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/glustolibs-gluster/glustolibs/gluster/gluster_init.py b/glustolibs-gluster/glustolibs/gluster/gluster_init.py
index 047046737..29059e6a1 100644
--- a/glustolibs-gluster/glustolibs/gluster/gluster_init.py
+++ b/glustolibs-gluster/glustolibs/gluster/gluster_init.py
@@ -251,3 +251,19 @@ def wait_for_glusterd_to_start(servers, glusterd_start_wait_timeout=80):
         count += 1
     g.log.error("glusterd is not running on %s", servers)
     return False
+
+
+def get_gluster_version(host):
+    """Checks the gluster version on the nodes
+
+    Args:
+        host(str): IP of the host whose gluster version has to be checked.
+
+    Returns:
+        (float): The gluster version value.
+    """
+    command = 'gluster --version'
+    _, out, _ = g.run(host, command)
+    g.log.info("The Gluster verion of the cluster under test is %s",
+               out)
+    return float(out.split(' ')[1])