[lib] Adding more check functions and tarssh support

- Adding the following check functions:
1. is_passwordless_ssh_configured() - To check if passwordless
ssh is configured or not between given nodes with a given user.
2. is_group_exists() - To check if group is present on servers
or not.
3. is_user_exists() - To check if a given user is present on
servers or not.

- Adding functionality to support both sync methods.

- Adding nonrootpass parameter to georep_prerequisites() as in
the previous logic the password for the non-root and the root
user were the same which might not always be the case.

- Fixing georep_config_get() and georep_config_set() to take
non-root user as well.

Change-Id: I8a42d48d56690040dd7f78d1fb919029c0d6e61d
Signed-off-by: kshithijiyer <kshithij.ki@gmail.com>

1 files changed, 16 insertions, 6 deletions

diff --git a/glustolibs-gluster/glustolibs/gluster/geo_rep_ops.py b/glustolibs-gluster/glustolibs/gluster/geo_rep_ops.py
index 24161f6ff..7e12113c9 100755
--- a/glustolibs-gluster/glustolibs/gluster/geo_rep_ops.py
+++ b/glustolibs-gluster/glustolibs/gluster/geo_rep_ops.py
@@ -233,7 +233,8 @@ def georep_create(mnode, mastervol, slaveip, slavevol, user=None, force=False):
     return g.run(mnode, cmd)
 
 
-def georep_config_get(mnode, mastervol, slaveip, slavevol, config_key):
+def georep_config_get(mnode, mastervol, slaveip, slavevol, config_key,
+                      user=None):
     """ All the available configurable geo-rep options can be got
         using the config_key and seeing what it has been set to
 
@@ -256,12 +257,17 @@ def georep_config_get(mnode, mastervol, slaveip, slavevol, config_key):
             of the command execution.
 
     """
-    cmd = ("gluster volume geo-replication %s %s::%s config %s" %
-           (mastervol, slaveip, slavevol, config_key))
+    if user:
+        cmd = ("gluster volume geo-replication %s %s@%s::%s config %s" %
+               (mastervol, user, slaveip, slavevol, config_key))
+    else:
+        cmd = ("gluster volume geo-replication %s %s::%s config %s" %
+               (mastervol, slaveip, slavevol, config_key))
     return g.run(mnode, cmd)
 
 
-def georep_config_set(mnode, mastervol, slaveip, slavevol, config, value):
+def georep_config_set(mnode, mastervol, slaveip, slavevol, config, value,
+                      user=None):
     """ All the available configurable geo-rep options can be set with a
         specific command if required or
         just with the config parameter
@@ -285,8 +291,12 @@ def georep_config_set(mnode, mastervol, slaveip, slavevol, config, value):
             of the command execution.
 
     """
-    cmd = ("gluster volume geo-replication %s %s::%s config %s %s" %
-           (mastervol, slaveip, slavevol, config, value))
+    if user:
+        cmd = ("gluster volume geo-replication %s %s::%s config %s %s" %
+               (mastervol, user, slaveip, slavevol, config, value))
+    else:
+        cmd = ("gluster volume geo-replication %s %s::%s config %s %s" %
+               (mastervol, slaveip, slavevol, config, value))
     return g.run(mnode, cmd)