Creation of clone from snapshot of one volume

Change-Id: Ice1e7139613c0d2f15c95e86e6c1e7b595d390a5
Signed-off-by: srivickynesh <sselvan@redhat.com>

1 files changed, 248 insertions, 0 deletions

diff --git a/tests/functional/snapshot/test_clone_snap.py b/tests/functional/snapshot/test_clone_snap.py
new file mode 100644
index 000000000..a7ebd965c
--- /dev/null
+++ b/tests/functional/snapshot/test_clone_snap.py
@@ -0,0 +1,248 @@
+#  Copyright (C) 2016-2017  Red Hat, Inc. <http://www.redhat.com>
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+"""
+Description:
+
+Test Cases in this module tests the
+Creation of clone from snapshot of one volume.
+
+"""
+from glusto.core import Glusto as g
+from glustolibs.gluster.exceptions import ExecutionError
+from glustolibs.gluster.gluster_base_class import GlusterBaseClass
+from glustolibs.gluster.gluster_base_class import runs_on
+from glustolibs.gluster.mount_ops import mount_volume, umount_volume
+from glustolibs.gluster.volume_ops import (get_volume_info,
+                                           volume_reset, volume_start,
+                                           set_volume_options,
+                                           get_volume_options)
+from glustolibs.gluster.volume_libs import (
+    cleanup_volume, verify_all_process_of_volume_are_online)
+from glustolibs.gluster.snap_ops import (snap_create,
+                                         snap_activate, snap_list,
+                                         snap_clone)
+
+
+@runs_on([['replicated', 'distributed-replicated', 'dispersed',
+           'distributed', 'distributed-dispersed'],
+          ['glusterfs', 'nfs', 'cifs']])
+class CloneSnapshot(GlusterBaseClass):
+    """
+    CloneSnapTest contains tests which verifies snapshot clone,
+    creating snapshot and performing I/O on mountpoints
+    """
+
+    def setUp(self):
+        # SettingUp volume and Mounting the volume
+        GlusterBaseClass.setUpClass.im_func(self)
+        g.log.info("Starting to SetUp Volume")
+        ret = self.setup_volume_and_mount_volume(mounts=self.mounts)
+        if not ret:
+            raise ExecutionError("Failed to setup volume %s" % self.volname)
+        g.log.info("Volume %s has been setup successfully", self.volname)
+
+    def test_clone_delete_snap(self):
+        """
+        clone from snap of one volume
+        * Create and Mount the volume
+        * Enable some volume options
+        * Creating 2 snapshots and activate
+        * reset the volume
+        * create a clone of snapshots created
+        * Mount both the clones
+        * Perform I/O on mount point
+        * Check volume options of cloned volumes
+        * Create snapshot of the cloned snapshot volume
+        * cleanup snapshots and volumes
+        """
+
+        # pylint: disable=too-many-statements, too-many-locals
+        # Enabling Volume options on the volume and validating
+        g.log.info("Enabling volume options for volume %s ", self.volname)
+        options = {" features.uss": "enable"}
+        ret = set_volume_options(self.mnode, self.volname, options)
+        self.assertTrue(ret, ("Failed to set volume options for volume %s"
+                              % self.volname))
+        g.log.info("Successfully set volume options"
+                   "for volume %s", self.volname)
+
+        # Validate feature.uss enabled or not
+        g.log.info("Validating feature.uss is enabled")
+        option = "features.uss"
+        vol_option = get_volume_options(self.mnode, self.volname, option)
+        self.assertEqual(vol_option['features.uss'], 'enable', "Failed"
+                         " to validate "
+                         "volume options")
+        g.log.info("Successfully validated volume options"
+                   "for volume %s", self.volname)
+
+        # Creating snapshot
+        g.log.info("Starting to Create snapshot")
+        for snap_count in range(0, 2):
+            ret, _, _ = snap_create(self.mnode, self.volname,
+                                    "snap%s" % snap_count)
+            self.assertEqual(ret, 0, ("Failed to create snapshot for volume %s"
+                                      % self.volname))
+            g.log.info("Snapshot snap%s created successfully"
+                       "for volume %s", snap_count, self.volname)
+
+        # Activating snapshot
+        g.log.info("Starting to Activate Snapshot")
+        for snap_count in range(0, 2):
+            ret, _, _ = snap_activate(self.mnode, "snap%s" % snap_count)
+            self.assertEqual(ret, 0, ("Failed to Activate snapshot snap%s"
+                                      % snap_count))
+            g.log.info("Snapshot snap%s activated successfully", snap_count)
+
+        # Reset volume:
+        g.log.info("Starting to Reset Volume")
+        ret, _, _ = volume_reset(self.mnode, self.volname, force=False)
+        self.assertEqual(ret, 0, ("Failed to reset volume %s" % self.volname))
+        g.log.info("Reset Volume on volume %s is Successful", self.volname)
+
+        # Validate feature.uss enabled or not
+        g.log.info("Validating feature.uss is enabled")
+        option = "features.uss"
+        vol_option = get_volume_options(self.mnode, self.volname, option)
+        self.assertEqual(vol_option['features.uss'], 'off', "Failed"
+                         " to validate "
+                         "volume options")
+        g.log.info("Successfully validated volume options"
+                   "for volume %s", self.volname)
+
+        # Verify volume's all process are online
+        g.log.info("Starting to Verify volume's all process are online")
+        ret = verify_all_process_of_volume_are_online(self.mnode, self.volname)
+        self.assertTrue(ret, ("Volume %s : All process are"
+                              "not online" % self.volname))
+        g.log.info("Volume %s : All process are online", self.volname)
+
+        # Creating and starting a Clone of snapshot
+        g.log.info("Starting to Clone Snapshot")
+        for clone_count in range(0, 2):
+            ret, _, _ = snap_clone(self.mnode, "snap%s" % clone_count,
+                                   "clone%s" % clone_count)
+            self.assertEqual(ret, 0, ("Failed to clone clone%s volume"
+                                      % clone_count))
+            g.log.info("clone%s volume created successfully", clone_count)
+
+        # Start Cloned volume
+        g.log.info("starting to Validate clone volumes are started")
+        for clone_count in range(0, 2):
+            ret, _, _ = volume_start(self.mnode, "clone%s" % clone_count)
+            self.assertEqual(ret, 0, ("Failed to start clone%s"
+                                      % clone_count))
+            g.log.info("clone%s started successfully", clone_count)
+        g.log.info("All the clone volumes are started Successfully")
+
+        # Validate Volume start of cloned volume
+        g.log.info("Starting to Validate Volume start")
+        for clone_count in range(0, 2):
+            vol_info = get_volume_info(self.mnode, "clone%s" % clone_count)
+            if vol_info["clone%s" % clone_count]['statusStr'] != 'Started':
+                raise ExecutionError("Failed to get volume info for clone%s"
+                                     % clone_count)
+            g.log.info("Volume clone%s is in Started state", clone_count)
+
+        # Validate feature.uss enabled or not
+        g.log.info("Validating feature.uss is enabled")
+        option = "features.uss"
+        for clone_count in range(0, 2):
+            vol_option = get_volume_options(self.mnode, "clone%s"
+                                            % clone_count, option)
+            self.assertEqual(vol_option['features.uss'], 'enable', "Failed"
+                             " to validate"
+                             "volume options")
+            g.log.info("Successfully validated volume options"
+                       "for volume clone%s", clone_count)
+
+        # Mount both the cloned volumes
+        g.log.info("Mounting Cloned Volumes")
+        for mount_obj in range(0, 2):
+            self.mpoint = "/mnt/clone%s" % mount_obj
+            cmd = "mkdir -p  %s" % self.mpoint
+            ret, _, _ = g.run(self.clients[0], cmd)
+            self.assertEqual(ret, 0, ("Creation of directory %s"
+                                      "for mounting"
+                                      "volume %s failed: Directory already"
+                                      "present"
+                                      % (self.mpoint, "clone%s" % mount_obj)))
+            g.log.info("Creation of directory %s for mounting volume %s "
+                       "success", self.mpoint, ("clone%s" % mount_obj))
+            ret, _, _ = mount_volume("clone%s" % mount_obj, self.mount_type,
+                                     self.mpoint, self.mnode, self.clients[0])
+            self.assertEqual(ret, 0, ("clone%s is not mounted"
+                                      % mount_obj))
+            g.log.info("clone%s is mounted Successfully", mount_obj)
+
+        # Perform I/O on mount
+        # Start I/O on all mounts
+        g.log.info("Starting to Perform I/O on Mountpoint")
+        all_mounts_procs = []
+        for mount_obj in range(0, 2):
+            cmd = ("cd /mnt/clone%s/; for i in {1..10};"
+                   "do touch file$i; done; cd;") % mount_obj
+            proc = g.run(self.clients[0], cmd)
+            all_mounts_procs.append(proc)
+        g.log.info("I/O on mountpoint is Successfull")
+
+        # create snapshot
+        g.log.info("Starting to Create snapshot of clone volume")
+        ret0, _, _ = snap_create(self.mnode, "clone0", "snap2")
+        self.assertEqual(ret0, 0, "Failed to create the snapshot"
+                         "snap2 from clone0")
+        g.log.info("Snapshots snap2 created successfully from clone0")
+        ret1, _, _ = snap_create(self.mnode, "clone1", "snap3")
+        self.assertEqual(ret1, 0, "Failed to create the snapshot snap3"
+                         "from clone1")
+        g.log.info("Snapshots snap3 created successfully from clone1")
+
+        # Listing all Snapshots present
+        g.log.info("Starting to list all snapshots")
+        ret, _, _ = snap_list(self.mnode)
+        self.assertEqual(ret, 0, ("Failed to list snapshots present"))
+        g.log.info("Snapshots successfully listed")
+
+    def tearDown(self):
+
+        # Unmount Cloned volume
+        g.log.info("Starting to Unmount Cloned volume")
+        for count in range(0, 2):
+            self.mpoint = "/mnt/clone%s" % count
+            ret, _, _ = umount_volume(self.clients[0], self.mpoint,
+                                      self.mount_type)
+            if ret == 1:
+                raise ExecutionError("Unmounting the moint point %s failed"
+                                     % self.mpoint)
+            g.log.info("Mount point %s deleted successfully", self.mpoint)
+        g.log.info("Unmount Volume Successful")
+
+        # Cleanup Cloned Volumes
+        g.log.info("Starting to cleanup cloned volumes")
+        for clone_count in range(0, 2):
+            ret = cleanup_volume(self.mnode, "clone%s" % clone_count)
+            if not ret:
+                raise ExecutionError("Failed to cleanup clone%s volume"
+                                     % clone_count)
+            g.log.info("Successful in clone%s volume cleanup", clone_count)
+
+        # Unmount and cleanup-volume
+        g.log.info("Starting to Unmount and cleanup-volume")
+        ret = self.unmount_volume_and_cleanup_volume(mounts=self.mounts)
+        if not ret:
+            raise ExecutionError("Failed to Unmount and Cleanup Volume")
+        g.log.info("Cleanup Volume Successfully")