[WIP] add initial helm chart

[akihikokuroda]

Create helm chart to install bee-stack in kubernetes cluster.

The bee-api, bee-ui and bee-observ are in the main chart and the other dependency components are in the sub charts.

Necessary tools are:

1. kubernetes cluster. (kind, RancherDesctop, etc)
2. kubectl
3. helm

Install step:

1. cd to charts/bee-stack
2. run helm dependency update
3. run 'helm install "release name" .`

The stack is install in the default namespace.

uninstall step:

1. run 'helm uninstall "release name"`
2. run kubectl delete pvc for an necessary PVC.

[akihikokuroda]

This is still in progress. It has all components except "the python interpreter". The components are up but not working properly yet.

Any comments and suggestions are welcome.
Thanks!

[akihikokuroda]

With the latest commit, most of components are working except the "python-interpreter". The bee-ui and the 'mlflow` are accessible via node ports. After install the bee-stack helm chart by
``
cd charts/bee-stack
helm install bee .

The ui can be accessed

kubectl get svc bee-stack-ui bee-mlflow-tracking
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
bee-stack-ui NodePort 10.43.204.200 3000:30995/TCP 17m
bee-mlflow-tracking LoadBalancer 10.43.144.32 192.168.4.181 80:32605/TCP 17m

URL for bee-ui: `http://localhost:30995/`
URL for mlflow: `http://localhost:32605/`


The next steps are:

1. add python-interpreter
2. extract secret information from deployments and put them into secrets.

[jezekra1]

Thanks for the draft!

We should make the helm chart suitable for production deployment, see the necessary changes in the issue:
#2 (comment)

I'll implement the changes, we'll maintain the current docker-compose stack until then.