Fix broken Kibble

[kaxil]

Before this commit I got this error when running Kibble locally:

kibble_1         | [2020-12-12 19:42:01 +0000] [7] [ERROR] Exception in worker process
kibble_1         | Traceback (most recent call last):
kibble_1         |   File "/usr/local/lib/python3.8/site-packages/gunicorn/arbiter.py", line 583, in spawn_worker
kibble_1         |     worker.init_process()
kibble_1         |   File "/usr/local/lib/python3.8/site-packages/gunicorn/workers/base.py", line 119, in init_process
kibble_1         |     self.load_wsgi()
kibble_1         |   File "/usr/local/lib/python3.8/site-packages/gunicorn/workers/base.py", line 144, in load_wsgi
kibble_1         |     self.wsgi = self.app.wsgi()
kibble_1         |   File "/usr/local/lib/python3.8/site-packages/gunicorn/app/base.py", line 67, in wsgi
kibble_1         |     self.callable = self.load()
kibble_1         |   File "/usr/local/lib/python3.8/site-packages/gunicorn/app/wsgiapp.py", line 49, in load
kibble_1         |     return self.load_wsgiapp()
kibble_1         |   File "/usr/local/lib/python3.8/site-packages/gunicorn/app/wsgiapp.py", line 39, in load_wsgiapp
kibble_1         |     return util.import_app(self.app_uri)
kibble_1         |   File "/usr/local/lib/python3.8/site-packages/gunicorn/util.py", line 358, in import_app
kibble_1         |     mod = importlib.import_module(module)
kibble_1         |   File "/usr/local/lib/python3.8/importlib/__init__.py", line 127, in import_module
kibble_1         |     return _bootstrap._gcd_import(name[level:], package, level)
kibble_1         |   File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
kibble_1         |   File "<frozen importlib._bootstrap>", line 991, in _find_and_load
kibble_1         |   File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
kibble_1         |   File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
kibble_1         |   File "<frozen importlib._bootstrap_external>", line 783, in exec_module
kibble_1         |   File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
kibble_1         |   File "/kibble/kibble/api/handler.py", line 49, in <module>
kibble_1         |     with open(KIBBLE_YAML, "r") as f:
kibble_1         | FileNotFoundError: [Errno 2] No such file or directory: '/kibble/kibble/api/yaml/kibble.yaml'
kibble_1         | [2020-12-12 19:42:01 +0000] [7] [INFO] Worker exiting (pid: 7)

This was because https://github.com/apache/kibble/pull/83 replaced kibble.yaml with kibble.ini

This PR reads the config from kibble.ini.

This also adds a network to docker-compose file without which I was getting host not found error.

[kaxil]

cc @turbaszek @michalslowikowski00 @Humbedooh

[kaxil]

Without this PR:

I was stuck at

and clicking on "Sign In" did nothing.

After this PR, it is working for me:

[turbaszek]

Thanks @kaxil for the fix!