Expose TFTP server listen address in config file and command line

argument. resolves #151

README.md

@@ -74,6 +74,11 @@ The following are arguments that can be passed to `pypxe.server` when running fr
 |__`--dhcp-fileserver-ip DHCP_FILESERVER_IP`__|Specify DHCP file server IP address|`192.168.2.2`|
 |__`--dhcp-whitelist`__|Only serve clients specified in the static lease file (`--static-config`)|`False`|
 
+##### TFTP Service Arguments
+
+|Argument|Description|Default|
+|---|---|---|
+|__`--tftp-server-ip TFTP_SERVER_IP`__|Specify TFTP server IP address|`0.0.0.0`|
 
 ##### File Name/Directory Arguments
 

example_cfg.json

@@ -25,6 +25,7 @@
     "STATIC_CONFIG": "", 
     "SYSLOG_PORT": 514, 
     "SYSLOG_SERVER": null, 
+    "TFTP_SERVER_IP": "192.168.2.2", 
     "USE_DHCP": true, 
     "USE_HTTP": false, 
     "USE_IPXE": false, 

pypxe/server.py

@@ -35,6 +35,7 @@
             'STATIC_CONFIG':'',
             'SYSLOG_SERVER':None,
             'SYSLOG_PORT':514,
+            'TFTP_SERVER_IP':'0.0.0.0',
             'USE_IPXE':False,
             'USE_HTTP':False,
             'USE_TFTP':True,
@@ -108,6 +109,11 @@ def parse_cli_arguments():
     nbd_group.add_argument('--nbd-server', action = 'store', dest = 'NBD_SERVER_IP', help = 'NBD Server IP', default = SETTINGS['NBD_SERVER_IP'])
     nbd_group.add_argument('--nbd-port', action = 'store', dest = 'NBD_PORT', help = 'NBD Server Port', default = SETTINGS['NBD_PORT'])
 
+    # TFTP server arguments
+    tftp_group = parser.add_argument_group(title = 'TFTP', description = 'Arguments relevant to the TFTP server')
+    tftp_group.add_argument('--tftp-server-ip', action = 'store', dest = 'TFTP_SERVER_IP', help = 'TFTP Server IP', default = SETTINGS['TFTP_SERVER_IP'])
+
+
     return parser.parse_args()
 
 def do_debug(service):
@@ -224,7 +230,12 @@ def main():
             sys_logger.info('Starting TFTP server...')
 
             # setup the thread
-            tftp_server = tftp.TFTPD(mode_debug = do_debug('tftp'), mode_verbose = do_verbose('tftp'), logger = tftp_logger, netboot_directory = args.NETBOOT_DIR)
+            tftp_server = tftp.TFTPD(
+                mode_debug = do_debug('tftp'),
+                mode_verbose = do_verbose('tftp'),
+                logger = tftp_logger,
+                netboot_directory = args.NETBOOT_DIR,
+                ip = args.TFTP_SERVER_IP)
             tftpd = threading.Thread(target = tftp_server.listen)
             tftpd.daemon = True
             tftpd.start()