[UX] non-kubeflow backend

[ddysher]

Is this a BUG REPORT or FEATURE REQUEST?:

Uncomment only one, leave it on its own line:

/kind feature

Now we are required to install kubeflow to use ciao, to make it easier for people to get start, i think we can do:

• use kubernetes job backend
• only install required operators (can be installed via helm charts)

wdyt? @gaocegege

[gaocegege]

Actually, now we work with selected operators (pytorch and tf), there is no need to install all packages in kubeflow for ciao.

As for kubernetes job backend, we can implement while I think it is not in high priority.

[ddysher]

yeah, but the installation guide asks me to install kubeflow..

[gaocegege]

I am not sure if we will support katib in the future, thus I wrote that.

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[gaocegege]

/priority p3