dist: suppress the yaml load warning

YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated,
as the default Loader is unsafe. Please read https://msg.pyyaml.org/load
for full details.

Fix it by use new safe interface - yaml.safe_load()

Signed-off-by: Amos Kong <amos@scylladb.com>
Cc: Vlad Zolotarov <vladz@scylladb.com>
Message-Id: <9b68601845117274573474ede0341cc81f80efa6.1561156205.git.amos@scylladb.com>

dist/common/scripts/scylla_blocktune.py

@@ -95,7 +95,7 @@ def tune_fs(path, nomerges):
 # tunes all filesystems referenced from a scylla.yaml
 def tune_yaml(path, nomerges):
     import yaml
-    y = yaml.load(open(path))
+    y = yaml.safe_load(open(path))
     for fs in y['data_file_directories']:
         tune_fs(fs, nomerges)
     tune_fs(y['commitlog_directory'], nomerges)

dist/common/scripts/scylla_config_get.py

@@ -27,7 +27,7 @@ import yaml
 
 def get(config, key):
     s = open(config).read()
-    cfg = yaml.load(s)
+    cfg = yaml.safe_load(s)
     try:
         val = cfg[key]
     except KeyError:

dist/common/scripts/scylla_fstrim

@@ -39,7 +39,7 @@ def main():
                         help='path to scylla.yaml')
     args = parser.parse_args()
     s = open(args.config).read()
-    cfg = yaml.load(s)
+    cfg = yaml.safe_load(s)
     mountpoints = set()
     for d in cfg['data_file_directories']:
         mountpoints.add(find_mount_point(d))

dist/common/scripts/scylla_io_setup

@@ -90,7 +90,7 @@ if __name__ == "__main__":
                 conf_dir = os.environ["SCYLLA_CONF"]
             else:
                 conf_dir = "/etc/scylla"
-            cfg = yaml.load(open(os.path.join(conf_dir, "scylla.yaml")))
+            cfg = yaml.safe_load(open(os.path.join(conf_dir, "scylla.yaml")))
             if not "data_file_directories" in cfg:
                 logging.error("No data directories found. Please check the configuration and run scylla_io_setup again.\n")
                 sys.exit(1)

dist/common/scripts/scylla_util.py

@@ -420,7 +420,7 @@ def get_scylla_dirs():
     Verifies that mandatory parameters are set.
     """
     scylla_yaml_name = '/etc/scylla/scylla.yaml'
-    y = yaml.load(open(scylla_yaml_name))
+    y = yaml.safe_load(open(scylla_yaml_name))
 
     # Check that mandatory fields are set
     if 'data_file_directories' not in y or \

dist/docker/redhat/scyllasetup.py

@@ -39,7 +39,7 @@ class ScyllaSetup:
 
     def io(self):
         conf_dir = "/etc/scylla"
-        cfg = yaml.load(open(os.path.join(conf_dir, "scylla.yaml")))
+        cfg = yaml.safe_load(open(os.path.join(conf_dir, "scylla.yaml")))
         data_dirs = cfg["data_file_directories"]
         if len(data_dirs) > 1:
             logging.warn("%d data directories found. scylla_io_setup currently lacks support for it, and only %s will be evaluated",