Add a support to delete kubernetes API objects from yaml

[marukaz]

What is the feature and why do you need it:

There is already a util to create kubernetes API objects from yaml and it's very useful.
However, when I create an object from a yaml file, I sometimes want to delete the object created using that file, but there is no util for that.
I think it would be useful to have a util for delete that is paired with create_from_yaml.py, in other words, something like kubectl delete -f.

Describe the solution you'd like to see:

from kubernetes import utils, client

yaml_path = "path/to/yaml"
k8s_client = client.ApiClient()

utils.create_from_yaml(k8s_client, yaml_path)
utils.delete_with_yaml(k8s_client, yaml_path)

[adammrozik]

Hey! I was looking for similar functionality, but I guess if we do it, maybe we should generalize?
I see all that is happening inside the code is basically looking for a function called create_namespaced_{0}.

We could replace it with something like: {action}_namespaced_{resource} and have a function like:

utils.action_from_yaml(client, yaml_path, action='delete') # or 'patch', 'create' etc...

WDYT?

For now I just did copy these YAML functions and altered them like this in my own private repo

[roycaihw]

/assign

[roycaihw]

There is a PR already: #1197. It needs some rebase work to clean the changes up, but feel free to leave comments and suggestions there.

[adammrozik]

Great! What about patch from yaml or replace from Yaml? pon., 1 mar 2021, 20:40 użytkownik Haowei Cai (Roy) < notifications@github.com> napisał:

…

There is a PR already: #1197 <#1197>. It needs some rebase work to clean the changes up, but feel free to leave comments and suggestions there. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#1373 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ARPF4NULFSPE2RKXOHUKDD3TBPUR3ANCNFSM4XGY6ILQ> .

[roycaihw]

We don't have in-progress work for those functionalities. I imagine patching/replacing could be significantly more difficult than creating/deleting, since you may want to parse yaml into an object and calculate diff against the existing object. You may want to consider using #989 for that.

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