feat: add tensorboards-web-app rock for CKF 1.9

[NohaIhab]

closes #86

Summary

• Creates rockcraft file for tensorboards Web App v1.9.0
• Adds tox.ini
• Adds sanity tests

Testing

1. Build the rock

tox -e pack

2. Export the rock to Docker

tox -e export-to-docker

3. Run a container with the image and replace the entrypoint with a shell

docker run --rm -ti tensorboards-web-app:1.9 exec /bin/bash

4. Go to the working-dir /src

cd /src

5. Run the entrypoint command

_daemon_@f2a80c2d3f9f:/src$ gunicorn -w 3 --bind 0.0.0.0:5000 --access-logfile - entrypoint:app

Expected output:

[2024-05-20 12:20:09 +0000] [22] [INFO] Starting gunicorn 22.0.0
[2024-05-20 12:20:09 +0000] [22] [INFO] Listening at: http://0.0.0.0:5000 (22)
[2024-05-20 12:20:09 +0000] [22] [INFO] Using worker: sync
[2024-05-20 12:20:09 +0000] [23] [INFO] Booting worker with pid: 23
[2024-05-20 12:20:09 +0000] [24] [INFO] Booting worker with pid: 24
[2024-05-20 12:20:09 +0000] [25] [INFO] Booting worker with pid: 25
[2024-05-20 12:20:12 +0000] [23] [ERROR] Exception in worker process
...

Because the container image needs kubeconfig and proper expose of a the serving port, the expected output will be followed by the following errors:

kubernetes.config.config_exception.ConfigException: Service host/port is not set.
kubernetes.config.config_exception.ConfigException: Invalid kube-config file. No configuration found.

Another test you can do is run the upstream image and compare the output, it should be the same:

docker run docker.io/kubeflownotebookswg/tensorboards-web-app:v1.9.0

[orfeas-k]

Tested and works, small comment

EDIT:
Just integrating in the charm, I got the errors:

2024-09-02T08:15:11.187Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [14] [INFO] Starting gunicorn 23.0.0
2024-09-02T08:15:11.187Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [14] [INFO] Listening at: http://0.0.0.0:5000 (14)
2024-09-02T08:15:11.188Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [14] [INFO] Using worker: sync
2024-09-02T08:15:11.189Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [16] [INFO] Booting worker with pid: 16
2024-09-02T08:15:11.191Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [16] [ERROR] Exception in worker process
2024-09-02T08:15:11.191Z [tensorboards-web-app] Traceback (most recent call last):
2024-09-02T08:15:11.191Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/arbiter.py", line 608, in spawn_worker
2024-09-02T08:15:11.191Z [tensorboards-web-app]     worker.init_process()
2024-09-02T08:15:11.191Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/workers/base.py", line 135, in init_process
2024-09-02T08:15:11.191Z [tensorboards-web-app]     self.load_wsgi()
2024-09-02T08:15:11.191Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/workers/base.py", line 147, in load_wsgi
2024-09-02T08:15:11.191Z [tensorboards-web-app]     self.wsgi = self.app.wsgi()
2024-09-02T08:15:11.191Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/app/base.py", line 66, in wsgi
2024-09-02T08:15:11.191Z [tensorboards-web-app]     self.callable = self.load()
2024-09-02T08:15:11.191Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/app/wsgiapp.py", line 57, in load
2024-09-02T08:15:11.191Z [tensorboards-web-app]     return self.load_wsgiapp()
2024-09-02T08:15:11.191Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/app/wsgiapp.py", line 47, in load_wsgiapp
2024-09-02T08:15:11.191Z [tensorboards-web-app]     return util.import_app(self.app_uri)
2024-09-02T08:15:11.191Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/util.py", line 370, in import_app
2024-09-02T08:15:11.191Z [tensorboards-web-app]     mod = importlib.import_module(module)
2024-09-02T08:15:11.191Z [tensorboards-web-app]   File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
2024-09-02T08:15:11.191Z [tensorboards-web-app]     return _bootstrap._gcd_import(name[level:], package, level)
2024-09-02T08:15:11.191Z [tensorboards-web-app]   File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
2024-09-02T08:15:11.191Z [tensorboards-web-app]   File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
2024-09-02T08:15:11.191Z [tensorboards-web-app]   File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
2024-09-02T08:15:11.191Z [tensorboards-web-app] ModuleNotFoundError: No module named 'entrypoint'
2024-09-02T08:15:11.191Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [16] [INFO] Worker exiting (pid: 16)
2024-09-02T08:15:11.191Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [17] [INFO] Booting worker with pid: 17
2024-09-02T08:15:11.193Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [17] [ERROR] Exception in worker process
2024-09-02T08:15:11.193Z [tensorboards-web-app] Traceback (most recent call last):
2024-09-02T08:15:11.193Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/arbiter.py", line 608, in spawn_worker
2024-09-02T08:15:11.193Z [tensorboards-web-app]     worker.init_process()
2024-09-02T08:15:11.193Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/workers/base.py", line 135, in init_process
2024-09-02T08:15:11.193Z [tensorboards-web-app]     self.load_wsgi()
2024-09-02T08:15:11.193Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/workers/base.py", line 147, in load_wsgi
2024-09-02T08:15:11.193Z [tensorboards-web-app]     self.wsgi = self.app.wsgi()
2024-09-02T08:15:11.193Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/app/base.py", line 66, in wsgi
2024-09-02T08:15:11.193Z [tensorboards-web-app]     self.callable = self.load()
2024-09-02T08:15:11.193Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/app/wsgiapp.py", line 57, in load
2024-09-02T08:15:11.193Z [tensorboards-web-app]     return self.load_wsgiapp()
2024-09-02T08:15:11.193Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/app/wsgiapp.py", line 47, in load_wsgiapp
2024-09-02T08:15:11.193Z [tensorboards-web-app]     return util.import_app(self.app_uri)
2024-09-02T08:15:11.193Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/util.py", line 370, in import_app
2024-09-02T08:15:11.193Z [tensorboards-web-app]     mod = importlib.import_module(module)
2024-09-02T08:15:11.193Z [tensorboards-web-app]   File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
2024-09-02T08:15:11.193Z [tensorboards-web-app]     return _bootstrap._gcd_import(name[level:], package, level)
2024-09-02T08:15:11.193Z [tensorboards-web-app]   File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
2024-09-02T08:15:11.193Z [tensorboards-web-app]   File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
2024-09-02T08:15:11.193Z [tensorboards-web-app]   File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
2024-09-02T08:15:11.193Z [tensorboards-web-app] ModuleNotFoundError: No module named 'entrypoint'
2024-09-02T08:15:11.193Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [17] [INFO] Worker exiting (pid: 17)
2024-09-02T08:15:11.193Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [18] [INFO] Booting worker with pid: 18
2024-09-02T08:15:11.194Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [18] [ERROR] Exception in worker process
2024-09-02T08:15:11.194Z [tensorboards-web-app] Traceback (most recent call last):
2024-09-02T08:15:11.194Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/arbiter.py", line 608, in spawn_worker
2024-09-02T08:15:11.194Z [tensorboards-web-app]     worker.init_process()
2024-09-02T08:15:11.194Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/workers/base.py", line 135, in init_process
2024-09-02T08:15:11.194Z [tensorboards-web-app]     self.load_wsgi()
2024-09-02T08:15:11.194Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/workers/base.py", line 147, in load_wsgi
2024-09-02T08:15:11.194Z [tensorboards-web-app]     self.wsgi = self.app.wsgi()
2024-09-02T08:15:11.194Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/app/base.py", line 66, in wsgi
2024-09-02T08:15:11.194Z [tensorboards-web-app]     self.callable = self.load()
2024-09-02T08:15:11.194Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/app/wsgiapp.py", line 57, in load
2024-09-02T08:15:11.194Z [tensorboards-web-app]     return self.load_wsgiapp()
2024-09-02T08:15:11.194Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/app/wsgiapp.py", line 47, in load_wsgiapp
2024-09-02T08:15:11.194Z [tensorboards-web-app]     return util.import_app(self.app_uri)
2024-09-02T08:15:11.194Z [tensorboards-web-app]   File "/lib/python3.10/site-packages/gunicorn/util.py", line 370, in import_app
2024-09-02T08:15:11.194Z [tensorboards-web-app]     mod = importlib.import_module(module)
2024-09-02T08:15:11.194Z [tensorboards-web-app]   File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
2024-09-02T08:15:11.194Z [tensorboards-web-app]     return _bootstrap._gcd_import(name[level:], package, level)
2024-09-02T08:15:11.194Z [tensorboards-web-app]   File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
2024-09-02T08:15:11.194Z [tensorboards-web-app]   File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
2024-09-02T08:15:11.194Z [tensorboards-web-app]   File "<frozen importlib._bootstrap>", line 1004, in _find_and_load_unlocked
2024-09-02T08:15:11.194Z [tensorboards-web-app] ModuleNotFoundError: No module named 'entrypoint'
2024-09-02T08:15:11.194Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [18] [INFO] Worker exiting (pid: 18)
2024-09-02T08:15:11.206Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [14] [ERROR] Worker (pid:16) exited with code 3
2024-09-02T08:15:11.208Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [14] [ERROR] Worker (pid:17) was sent SIGTERM!
2024-09-02T08:15:11.208Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [14] [ERROR] Worker (pid:18) was sent SIGTERM!
2024-09-02T08:15:11.307Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [14] [ERROR] Shutting down: Master
2024-09-02T08:15:11.307Z [tensorboards-web-app] [2024-09-02 08:15:11 +0000] [14] [ERROR] Reason: Worker failed to boot.

In order to overcome this, as also described here, I had to edit the pebble layer's override field from replace to merge. This worked then.