sma: make SMA parameters configurable

It's now possible to specify the gRPC interface listen address and the
SPDK-RPC socket path.

Change-Id: I957cf4ca4e03eac6f4f6f7ffab5ee95c5b6f7521
Signed-off-by: Sebastian Brzezinka <sebastian.brzezinka@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10979
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>

scripts/sma-client.py

@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 
+from argparse import ArgumentParser
 import grpc
 import google.protobuf.json_format as json_format
 import json
@@ -38,8 +39,18 @@ class Client:
                                              preserving_proto_field_name=True)
 
 
+def parse_argv():
+    parser = ArgumentParser(description='Storage Management Agent client')
+    parser.add_argument('--address', '-a', default='localhost',
+                        help='IP address of SMA instance to connect to')
+    parser.add_argument('--port', '-p', default=8080, type=int,
+                        help='Port number of SMA instance to connect to')
+    return parser.parse_args()
+
+
 def main(args):
-    client = Client('localhost', 8080)
+    argv = parse_argv()
+    client = Client(argv.address, argv.port)
     request = json.loads(sys.stdin.read())
     result = client.call(request['method'], request.get('params', {}))
     print(json.dumps(result, indent=2))

scripts/sma.py

@@ -11,8 +11,22 @@ import spdk.sma as sma                      # noqa
 from spdk.rpc.client import JSONRPCClient   # noqa
 
 
-def build_client():
-    return JSONRPCClient('/var/tmp/spdk.sock')
+def parse_argv():
+    parser = ArgumentParser(description='Storage Management Agent command line interface')
+    parser.add_argument('--address', '-a', default='localhost',
+                        help='IP address to listen on')
+    parser.add_argument('--socket', '-s', default='/var/tmp/spdk.sock',
+                        help='SPDK RPC socket')
+    parser.add_argument('--port', '-p', default=8080, type=int,
+                        help='IP port to listen on')
+    return parser.parse_args()
+
+
+def get_build_client(sock):
+    def build_client():
+        return JSONRPCClient(sock)
+
+    return build_client
 
 
 def register_device(agent, device):
@@ -21,7 +35,8 @@ def register_device(agent, device):
 
 
 if __name__ == '__main__':
+    argv = parse_argv()
     logging.basicConfig(level=os.environ.get('SMA_LOGLEVEL', 'WARNING').upper())
-    agent = sma.StorageManagementAgent('localhost', 8080)
-    register_device(agent, sma.NvmfTcpDeviceManager(build_client))
+    agent = sma.StorageManagementAgent(argv.address, argv.port)
+    register_device(agent, sma.NvmfTcpDeviceManager(get_build_client(argv.socket)))
     agent.run()