Setting default namespace

[akhy]

I think this feature would be very useful when we're working in certain namespace. For example, we would execute kube-prompt --namespace staging to set default namespace to staging if not set explicitly in the prompt. So we don't need to type --namespace option for each commands.

Bonus:
Taking more generic approach, it would be better if kube-prompt CLI accept options from original kubectl command as defaults. For example, executing kube-prompt --namespace dev -o wide sets default namespace to dev and output format to wide for any compatible commands. (i.e. it behaves like currying/partial application in functional programming)

[c-bata]

Fix this behavior at #42

Determine the namespace to use after merged this PR:

1. Use a command-line flag if it exists --namespace (or -n).
2. Use the namespace of current context.

[c-bata]

Hi @akhy. This terrible behavior around namespace is fixed at v1.0.6. Please update your kube-prompt.

https://github.com/c-bata/kube-prompt/releases/tag/v1.0.6

[sheerun]

@c-bata Is it possible to change defualt namespace inside session?

[c-bata]

Currently you can't. But if everyone want this feature, it might be worth to consider it. The most concerned thing is that need to design magic command syntax like:

>>> !namespace <yournamespace>  # magic command starts with "!"
Changed namespace: <yournamespace>
>>>

[mitchellmaler]

@c-bata I am in favor of switching the namespace and even the context in session. Could even do slash instead of !. /namespace

!context "context autocomplete"
!namespace "namespace autocomplete"

I tend to switch between multiple clusters and namespaces a lot so being able to switch these easily would be awesome.