tests: Add exit stanzas to pre-generated config

A bunch of tests rely on pre-generated config from
json files.  These tests were not putting `exit` stanzas
and a bunch of the tests as a result are silently failing
to configure properly at all, as commands were being sent
to the wrong daemons.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>

tests/topotests/lib/bgp.py

@@ -529,6 +529,7 @@ def __create_bgp_unicast_neighbor(
 
             config_data.extend(neigh_addr_data)
 
+    config_data.append("exit")
     logger.debug("Exiting lib API: {}".format(sys._getframe().f_code.co_name))
     return config_data
 

tests/topotests/lib/common_config.py

@@ -2186,6 +2186,7 @@ def create_interfaces_cfg(tgen, topo, build=False):
                     interface_data += _create_interfaces_ospf_cfg(
                         "ospf6", c_data, data, ospf_keywords + ["area"]
                     )
+                interface_data.append("exit")
             if interface_data:
                 interface_data_dict[c_router] = interface_data
 

tests/topotests/lib/ospf.py

@@ -337,6 +337,7 @@ def __create_ospf_global(tgen, input_dict, router, build, load_config, ospf):
                 cmd = "no {}".format(cmd)
             config_data.append(cmd)
 
+    config_data.append("exit")
     logger.debug("Exiting lib API: create_ospf_global()")
 
     return config_data