[minigraph]: Fix gateway address type issue

[stcheng]

Exception:
Invalid input of type: 'IPv6Address'. Convert to a byte, string or number first
Invalid input of type: 'IPv4Address'. Convert to a byte, string or number first

This field needs to be converted into string first.

Signed-off-by: Shu0T1an ChenG [email protected]

[stcheng]

Traceback (most recent call last):
  File "/usr/local/bin/sonic-cfggen", line 263, in <module>
    main()
  File "/usr/local/bin/sonic-cfggen", line 252, in main
    configdb.mod_config(FormatConverter.output_to_db(data))
  File "/usr/local/lib/python2.7/dist-packages/swsssdk/configdb.py", line 267, in mod_config
    self.mod_entry(table_name, key, table_data[key])
  File "/usr/local/lib/python2.7/dist-packages/swsssdk/configdb.py", line 196, in mod_entry
    client.hmset(_hash, self.__typed_to_raw(data))
  File "/usr/local/lib/python2.7/dist-packages/redis/client.py", line 2636, in hmset
    return self.execute_command('HMSET', name, *items)
  File "/usr/local/lib/python2.7/dist-packages/redis/client.py", line 754, in execute_command
    connection.send_command(*args)
  File "/usr/local/lib/python2.7/dist-packages/redis/connection.py", line 619, in send_command
    self.send_packed_command(self.pack_command(*args))
  File "/usr/local/lib/python2.7/dist-packages/redis/connection.py", line 659, in pack_command
    for arg in imap(self.encoder.encode, args):
  File "/usr/local/lib/python2.7/dist-packages/redis/connection.py", line 124, in encode
    "byte, string or number first." % typename)
redis.exceptions.DataError: Invalid input of type: 'IPv6Address'. Convert to a byte, string or number first.

[taoyl-ms]

This is not a correct fix. We'll need to fix in the sonic-py-swsssdk library.

[taoyl-ms]

This bug must be introduced by the recent python-redis library upgrade to 3.01. Our code is incompatible with the new lib. I believe modifying line 140 of sonic-py-swsssdk/src/swsssdk/configdb.py to raw_data[key] = str(value) should fix the issue. Will submit a fix after more throughout verification.

[stcheng]

ok thanks!

[stcheng]

i'd like to have the fix soon since it's breaking the current master 😭