[CNS-1393-1395] Restart gluster services then validate volumes

Change-Id: I58f8628c352556ac30c31777707b52cc2aea48ac
Signed-off-by: vamahaja <vamahaja@redhat.com>

2 files changed, 233 insertions, 0 deletions

diff --git a/tests/functional/common/gluster_stability/__init__.py b/tests/functional/common/gluster_stability/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/tests/functional/common/gluster_stability/__init__.py
diff --git a/tests/functional/common/gluster_stability/test_gluster_services_restart.py b/tests/functional/common/gluster_stability/test_gluster_services_restart.py
new file mode 100644
index 00000000..2cc09099
--- /dev/null
+++ b/tests/functional/common/gluster_stability/test_gluster_services_restart.py
@@ -0,0 +1,233 @@
+
+import ddt
+import re
+
+from cnslibs.common.heketi_ops import (
+    heketi_blockvolume_list,
+    match_heketi_and_gluster_block_volumes
+)
+from cnslibs.common.openshift_ops import (
+    check_service_status,
+    get_ocp_gluster_pod_names,
+    get_pod_name_from_dc,
+    match_pv_and_heketi_block_volumes,
+    match_pvc_and_pv,
+    oc_create_app_dc_with_io,
+    oc_create_pvc,
+    oc_create_sc,
+    oc_create_secret,
+    oc_delete,
+    oc_get_yaml,
+    restart_service_on_pod,
+    scale_dc_pod_amount_and_wait,
+    verify_pvc_status_is_bound,
+    wait_for_pod_be_ready,
+    wait_for_resource_absence
+)
+from cnslibs.cns.cns_baseclass import CnsBaseClass
+from cnslibs.common import podcmd
+
+HEKETI_BLOCK_VOLUME_REGEX = "^Id:(.*).Cluster:(.*).Name:%s_(.*)$"
+
+SERVICE_TARGET = "gluster-block-target"
+SERVICE_BLOCKD = "gluster-blockd"
+SERVICE_TCMU = "tcmu-runner"
+
+
+@ddt.ddt
+class GlusterStabilityTestSetup(CnsBaseClass):
+    """class for gluster stability (restarts different servces) testcases
+       TC No's: CNS-1393, CNS-1394, CNS-1395
+    """
+
+    def setUp(self):
+        """Deploys, Verifies and adds resources required for testcases
+           in cleanup method
+        """
+        self.oc_node = self.ocp_master_node[0]
+        self.gluster_pod = get_ocp_gluster_pod_names(self.oc_node)[0]
+
+        # prefix used to create resources, generating using glusto_test_id
+        # which uses time and date of test case
+        self.prefix = "autotest-%s" % (self.glustotest_run_id.replace("_", ""))
+
+        _cns_storage_class = self.cns_storage_class['storage_class2']
+        self.provisioner = _cns_storage_class["provisioner"]
+        self.restsecretname = _cns_storage_class["restsecretname"]
+        self.restsecretnamespace = _cns_storage_class["restsecretnamespace"]
+        self.restuser = _cns_storage_class["restuser"]
+        self.resturl = _cns_storage_class["resturl"]
+
+        _cns_secret = self.cns_secret['secret2']
+        self.secretnamespace = _cns_secret['namespace']
+        self.secrettype = _cns_secret['type']
+
+        # using pvc size count as 1 by default
+        self.pvcsize = 1
+
+        # using pvc count as 10 by default
+        self.pvccount = 10
+
+        # create gluster block storage class, PVC and user app pod
+        self.sc_name, self.pvc_name, self.dc_name, self.secret_name = (
+            self.deploy_resouces()
+        )
+
+        # verify storage class
+        oc_get_yaml(self.oc_node, "sc", self.sc_name)
+
+        # verify pod creation, it's state and get the pod name
+        self.pod_name = get_pod_name_from_dc(
+            self.oc_node, self.dc_name, timeout=180, wait_step=3
+        )
+        wait_for_pod_be_ready(
+            self.oc_node, self.pod_name, timeout=180, wait_step=3
+        )
+        verify_pvc_status_is_bound(self.oc_node, self.pvc_name)
+
+        # create pvc's to test
+        self.pvc_list = []
+        for pvc in range(self.pvccount):
+            test_pvc_name = oc_create_pvc(
+                self.oc_node, self.sc_name,
+                pvc_name_prefix=self.prefix, pvc_size=self.pvcsize
+            )
+            self.pvc_list.append(test_pvc_name)
+            self.addCleanup(
+                wait_for_resource_absence, self.oc_node, "pvc", test_pvc_name,
+                timeout=600, interval=10
+            )
+
+        for pvc_name in self.pvc_list:
+            self.addCleanup(oc_delete, self.oc_node, "pvc", pvc_name)
+
+    def deploy_resouces(self):
+        """Deploys required resources storage class, pvc and user app
+           with continous I/O runnig
+
+        Returns:
+            sc_name (str): deployed storage class name
+            pvc_name (str): deployed persistent volume claim name
+            dc_name (str): deployed deployment config name
+            secretname (str): created secret file name
+        """
+        secretname = oc_create_secret(
+            self.oc_node, namespace=self.secretnamespace,
+            data_key=self.heketi_cli_key, secret_type=self.secrettype)
+        self.addCleanup(oc_delete, self.oc_node, 'secret', secretname)
+
+        sc_name = oc_create_sc(
+            self.oc_node,
+            sc_name_prefix=self.prefix, provisioner=self.provisioner,
+            resturl=self.resturl, restuser=self.restuser,
+            restsecretnamespace=self.restsecretnamespace,
+            restsecretname=secretname, volumenameprefix=self.prefix
+        )
+        self.addCleanup(oc_delete, self.oc_node, "sc", sc_name)
+
+        pvc_name = oc_create_pvc(
+            self.oc_node, sc_name,
+            pvc_name_prefix=self.prefix, pvc_size=self.pvcsize
+        )
+        self.addCleanup(
+            wait_for_resource_absence, self.oc_node, "pvc", pvc_name,
+            timeout=120, interval=5
+        )
+        self.addCleanup(oc_delete, self.oc_node, "pvc", pvc_name)
+
+        dc_name = oc_create_app_dc_with_io(
+            self.oc_node, pvc_name, dc_name_prefix=self.prefix
+        )
+        self.addCleanup(oc_delete, self.oc_node, "dc", dc_name)
+        self.addCleanup(scale_dc_pod_amount_and_wait, self.oc_node, dc_name, 0)
+
+        return sc_name, pvc_name, dc_name, secretname
+
+    def get_heketi_block_volumes(self):
+        """lists heketi block volumes
+
+        Returns:
+            list : list of ids of heketi block volumes
+        """
+        heketi_cmd_out = heketi_blockvolume_list(
+            self.heketi_client_node,
+            self.heketi_server_url,
+            secret=self.heketi_cli_key,
+            user=self.heketi_cli_user
+        )
+
+        self.assertTrue(heketi_cmd_out, "failed to get block volume list")
+
+        heketi_block_volume_ids = []
+        heketi_block_volume_names = []
+        for block_vol in heketi_cmd_out.split("\n"):
+            heketi_vol_match = re.search(
+                HEKETI_BLOCK_VOLUME_REGEX % self.prefix, block_vol.strip()
+            )
+            if heketi_vol_match:
+                heketi_block_volume_ids.append(
+                    (heketi_vol_match.group(1)).strip()
+                )
+                heketi_block_volume_names.append(
+                    (heketi_vol_match.group(3)).strip()
+                )
+
+        return (sorted(heketi_block_volume_ids), sorted(
+            heketi_block_volume_names)
+        )
+
+    def validate_volumes_and_blocks(self):
+        """Validates PVC and block volumes generated through heketi and OCS
+        """
+
+        # verify pvc status is in "Bound" for all the pvc
+        for pvc in self.pvc_list:
+            verify_pvc_status_is_bound(
+                self.oc_node, pvc, timeout=300, wait_step=10
+            )
+
+        # validate pvcs and pvs created on OCS
+        match_pvc_and_pv(self.oc_node, self.prefix)
+
+        # get list of block volumes using heketi
+        heketi_block_volume_ids, heketi_block_volume_names = (
+            self.get_heketi_block_volumes()
+        )
+
+        # validate block volumes listed by heketi and pvs
+        match_pv_and_heketi_block_volumes(
+            self.oc_node, heketi_block_volume_ids, self.prefix
+        )
+
+        # validate block volumes listed by heketi and gluster
+        gluster_pod_obj = podcmd.Pod(self.heketi_client_node, self.gluster_pod)
+        match_heketi_and_gluster_block_volumes(
+            gluster_pod_obj, heketi_block_volume_names, "%s_" % self.prefix
+        )
+
+    @ddt.data(SERVICE_BLOCKD, SERVICE_TCMU, SERVICE_TARGET)
+    def test_restart_services_provision_volume_and_run_io(self, service):
+        """[CNS-1393-1395] Restart gluster service then validate volumes
+        """
+        # restarts glusterfs service
+        restart_service_on_pod(self.oc_node, self.gluster_pod, service)
+
+        # wait for deployed user pod to be in Running state after restarting
+        # service
+        wait_for_pod_be_ready(
+            self.oc_node, self.pod_name, timeout=60, wait_step=5
+        )
+
+        # checks if all glusterfs services are in running state
+        for service in (SERVICE_BLOCKD, SERVICE_TCMU, SERVICE_TARGET):
+            status = "exited" if service == SERVICE_TARGET else "running"
+            self.assertTrue(
+                check_service_status(
+                    self.oc_node, self.gluster_pod, service, status
+                ),
+                "service %s is not in %s state" % (service, status)
+            )
+
+        # validates pvc, pv, heketi block and gluster block count after
+        # service restarts
+        self.validate_volumes_and_blocks()