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Support ad-hoc client generation for CRDs #121

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yue9944882 opened this issue Jun 27, 2019 · 22 comments
Open

Support ad-hoc client generation for CRDs #121

yue9944882 opened this issue Jun 27, 2019 · 22 comments
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lifecycle/frozen Indicates that an issue or PR should not be auto-closed due to staleness.

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@yue9944882
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as 1.15's out, users can publish their own openapi spec w/ CRD integration. we should probably refactor the scripts to support ad-hoc client generations.

/cc @brendandburns @roycaihw
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@k8s-ci-robot k8s-ci-robot added the lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. label Sep 25, 2019
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/lifecycle rotten

@k8s-ci-robot k8s-ci-robot added lifecycle/rotten Denotes an issue or PR that has aged beyond stale and will be auto-closed. and removed lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. labels Oct 25, 2019
@zoidyzoidzoid
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Would love to see this done. I'd be happy to help if I can.

@zoidyzoidzoid
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Generating clients for CRDs would be amazing

@zoidyzoidzoid zoidyzoidzoid mentioned this issue Nov 4, 2019
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zoidyzoidzoid added a commit to zoidyzoidzoid/shipper that referenced this issue Dec 4, 2019
@zoidyzoidzoid
Add code to generate openapi specs
95d39c3 
Some of the modern Kubernetes clients use clients generated from a
swagger.json

kubernetes-client/javascript uses kubernetes-client/gen which uses
OpenApiTools/openapi-generator and kubernetes/kubernetes/api/openapi-spec/swagger.json

There are open/closed/rotten/ignored issues all over the place about
making these easier to use with CRDs.

Wrongly closed issue on kubernetes-client/javascript: kubernetes-client/javascript#341
Open issue on kubernetes-client/gen: kubernetes-client/gen#121

It seems like kubernetes/kube-openapi is one of the repos working on
solving the main part of this problem, generating the Go code to make
it easy to generate a swagger.json

I found the following Argo code via the following issue:

kubernetes/kube-openapi#13

https://github.com/argoproj/argo/blob/master/hack/gen-openapi-spec/main.go
https://github.com/argoproj/argo/blob/master/pkg/apis/workflow/v1alpha1/openapi_generated.go#L14:6
https://github.com/kubernetes/kube-openapi/blob/master/cmd/openapi-gen/openapi-gen.go

So I'm working on adding similar stuff to Shipper.

gen-openapi-spec uses the generated openapi_generated.go module that is
generated via the openapi-gen command.

The following commit adds the code to generate openapi_generated.go

Signed-off-by: William Stewart <zoidbergwill@gmail.com>
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/close

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@fejta-bot: Closing this issue.

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@zoidyzoidzoid zoidyzoidzoid mentioned this issue Dec 4, 2019
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@zoidyzoidzoid
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/reopen ?

@zoidyzoidzoid
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I think this would be a useful feature.

I recently went down this route, of trying to get this working, and it was painful and required some manual work too: bookingcom/shipper#243

@yue9944882
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/reopen

@k8s-ci-robot k8s-ci-robot reopened this Dec 9, 2019
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@yue9944882: Reopened this issue.

In response to this:

/reopen

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

@yue9944882
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@zoidbergwill we had an experimental CRD model generator for java (just generating model would be sufficient b/c we have custom-object api to be the general client) https://github.com/kubernetes-client/java/blob/master/docs/generate-model-from-third-party-resources.md. it will require kubernetes v1.15+ tho. it works for us in production..

@yue9944882
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/lifecycle active

@k8s-ci-robot k8s-ci-robot added lifecycle/active Indicates that an issue or PR is actively being worked on by a contributor. and removed lifecycle/rotten Denotes an issue or PR that has aged beyond stale and will be auto-closed. labels Dec 9, 2019
@aespinosa
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@yue9944882 @zoidbergwill we had success using https://github.com/kubernetes-client/gen/ for our case. we grabbed swagger.json.unprocessed (via 1.15+) and post-processed the spec by hand through gron.

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@k8s-ci-robot k8s-ci-robot added lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. and removed lifecycle/active Indicates that an issue or PR is actively being worked on by a contributor. labels Mar 9, 2020
@zoidyzoidzoid
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I had some luck in December, but it was pretty painful. I also ended up doing a bunch of copypasta by hand.

Most of it is documented in bookingcom/shipper#243

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/lifecycle rotten

@k8s-ci-robot k8s-ci-robot added lifecycle/rotten Denotes an issue or PR that has aged beyond stale and will be auto-closed. and removed lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. labels Apr 16, 2020
@palnabarun
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/remove-lifecycle rotten

@k8s-ci-robot k8s-ci-robot removed the lifecycle/rotten Denotes an issue or PR that has aged beyond stale and will be auto-closed. label May 10, 2020
@palnabarun
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/lifecycle frozen

@k8s-ci-robot k8s-ci-robot added the lifecycle/frozen Indicates that an issue or PR should not be auto-closed due to staleness. label May 10, 2020
@aespinosa aespinosa mentioned this issue Jun 14, 2020
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@yue9944882
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UPDATE: for java the CRD models now can also be written manually by properly implementing some interfaces: kubernetes-client/java#1020

@mateuszlitwin mateuszlitwin mentioned this issue May 6, 2021
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@std4453
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std4453 commented Feb 18, 2022

After roughly 1.5 year, is anyone actually working on this issue?

@aespinosa
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The work on the java client has been pretty active. I'm not sure about other languages though. I guess a status at the main github issue status for other languages would be handy.

@liangyuanpeng
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liangyuanpeng commented Aug 24, 2023 •
edited

I'm looking to generate client-go for CRD, does anyone know of any way?

Have check the https://github.com/kubernetes/code-generator and seems like it's base the golang (mean base on mode of golang, like types.go ) and i just have the CRD files, it's generate from rust.

EDIT: checking the https://github.com/OpenAPITools/openapi-generator

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