Fix 'yaml.load' which gives warnings

As per documenton [1], 'yaml.load(raw_data)' is deprecated and
suggested to use parameter 'Loader=yaml.FullLoader'. Fix such
instances of yaml.load in functions - oc_get_yaml, get_events
and enable_pvc_resize

[1] 'https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation'

Change-Id: I1fc5544f6f7f12b55e420486b4460f26db214139
Signed-off-by: vamahaja <vamahaja@redhat.com>

2 files changed, 4 insertions, 3 deletions

diff --git a/openshift-storage-libs/openshiftstoragelibs/openshift_ops.py b/openshift-storage-libs/openshiftstoragelibs/openshift_ops.py
index da8225a5..1835d9ca 100644
--- a/openshift-storage-libs/openshiftstoragelibs/openshift_ops.py
+++ b/openshift-storage-libs/openshiftstoragelibs/openshift_ops.py
@@ -567,7 +567,7 @@ def oc_get_yaml(ocp_node, rtype, name=None, raise_on_error=True):
         cmd.append(name)
     out = command.cmd_run(
         cmd, hostname=ocp_node, raise_on_error=raise_on_error)
-    return yaml.load(out) if out else {}
+    return yaml.load(out, Loader=yaml.FullLoader) if out else {}
 
 
 def oc_get_pvc(ocp_node, name):
@@ -1460,7 +1460,8 @@ def get_events(hostname,
     cmd = "oc get events -o yaml"
     if openshift_version.get_openshift_version() >= '3.9':
         cmd += " --field-selector %s" % ",".join(field_selector or "''")
-    objects = yaml.load(command.cmd_run(cmd, hostname=hostname))['items']
+    get_objects = command.cmd_run(cmd, hostname=hostname)
+    objects = yaml.load(get_objects, Loader=yaml.FullLoader)['items']
     if openshift_version.get_openshift_version() >= '3.9':
         return objects
 
diff --git a/openshift-storage-libs/openshiftstoragelibs/openshift_storage_libs.py b/openshift-storage-libs/openshiftstoragelibs/openshift_storage_libs.py
index ea37ee3d..5005a91e 100644
--- a/openshift-storage-libs/openshiftstoragelibs/openshift_storage_libs.py
+++ b/openshift-storage-libs/openshiftstoragelibs/openshift_storage_libs.py
@@ -75,7 +75,7 @@ def enable_pvc_resize(master_node):
             raise ExecutionError(err_msg)
 
         with conn.builtin.open(MASTER_CONFIG_FILEPATH, 'r') as f:
-            data = yaml.load(f)
+            data = yaml.load(f, Loader=yaml.FullLoader)
             dict_add = data['admissionConfig']['pluginConfig']
             if "PersistentVolumeClaimResize" in dict_add:
                 g.log.info("master-config.yaml file is already edited")