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Helm manage chart take the exists resources over k8s's management #8658

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haojingcn opened this issue Aug 26, 2020 · 4 comments
Closed

Helm manage chart take the exists resources over k8s's management #8658

haojingcn opened this issue Aug 26, 2020 · 4 comments
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plugin question/support

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@haojingcn
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Output of helm version:
3.3.0

Output of kubectl version:
1.13

Cloud Provider/Platform (AKS, GKE, Minikube etc.):
etc.

hi，my request is to enhance the ops.

Image this situation, i have some exists resources in k8s. now i wanna develop a chart to manage this resources. when the chart is done, i try to online this, but i wanna know the different between the chart and exists resources. If the difference is not big, i will take over the resources from k8s to chart. If the difference is too big, i will not apply the chart.

So turely, the enhancement function is:

  1. helm interface: install chart, take the exists resources over k8s, and put it into chart_instances.
  2. helm interface: dry run chart, show the difference between the current and the willingness.

now helm can cover the above requests? or it is arranged?
@bacongobbler
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bacongobbler commented Sep 2, 2020 •
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This sounds like an opportunity for a plugin, or a helm commandeer --dry-run. Helm does not have support for this, but an assistive tool similar to helm diff might be useful.

See also #2730 for discussions around adopting resources not managed by helm into a release.

@bacongobbler
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I'm going to close this in favour of #2730 to keep the conversation around adopting existing resources into a release in one ticket. Please post your thoughts and comments there. Thanks!

@haojingcn
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Got it. But #2730 this plugin is not maintained almostly 3 years. And i try to install it, but some errors occured. So does it used by anyone?
I know helm will validated the annotations and labels, and i have used it. #7649 But edit every resources manually is so terrible, So i try to find some easy way out, #2730 is not my answer, So do someone can give some opinions?

@bacongobbler
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bacongobbler commented Sep 4, 2020 •
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helm commandeer does not exist yet. There is no solution available to solve your current problem. Someone has to go and implement it. :)

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