How to work with k8s CRDs

[leoluk]

What's the right approach dealing with k8s CRDs in skycfg? Those are becoming increasingly common. cuelang solves this by having an intermediary typing language that can consume both Go structs and protobufs, such that it can validate either.

As far as I can tell, CRDs are only specified as jsonapi schemas and no protobuf schemas are generated.

[dilyevsky]

I haven’t tested it yet but If CRD provides openapi definitions you can generate proto representations using google gnostic tool - https://github.com/googleapis/gnostic-go-generator/blob/master/README.md After that it should work the same way.

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On Sat, Jan 4, 2020 at 5:34 PM Leopold Schabel ***@***.***> wrote: What's the right approach dealing with k8s CRDs in skycfg? Those are becoming increasingly common. cuelang solves this by having an intermediary typing language that can consume both Go structs and protobufs, such that it can validate either. As far as I can tell, CRDs are only specified as jsonapi schemas and no protobuf schemas are generated. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#70?email_source=notifications&email_token=AAF3KADN6URXUW5NFQSJ47TQ4CM7ZA5CNFSM4KCWKZDKYY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4IEAPXRA>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAF3KAEPB7V6QK5HB4K4YKTQ4CM7ZANCNFSM4KCWKZDA> .

[leoluk]

How would one use struct objects for untyped objects?

On https://skycfg.fun, this does not work:

def main(ctx):
  return [struct()]

`main' returned something that's not a protobuf (a struct)

[dilyevsky]

You can’t. Main needs to return proto wrapped into skyProtoMessage (there’s a helper for that).

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On Sat, Jan 4, 2020 at 7:27 PM Leopold Schabel ***@***.***> wrote: How would one use struct objects for untyped objects? On https://skycfg.fun, this does not work: def main(ctx): return [struct()] `main' returned something that's not a protobuf (a struct) — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#70?email_source=notifications&email_token=AAF3KAACBD4R6CGBARTUFADQ4C2FZA5CNFSM4KCWKZDKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEIC3FEQ#issuecomment-570798738>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAF3KACKSLUWRNMYZ3BAQVLQ4C2FZANCNFSM4KCWKZDA> .

[jmillikin-stripe]

Do you know what Protobuf type Kubernetes is expecting to receive for a CRD? If it's something like google.protobuf.Struct then you can construct those directly in Skycfg using normal idioms.

[leoluk]

It appears that the k8s protobuf API does not support CRDs at all

[dilyevsky]

Correct, you have render them as json. Maybe that’ll change when go proto v2 is out

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On Mon, Jan 6, 2020 at 4:28 PM Leopold Schabel ***@***.***> wrote: It appears that the k8s protobuf API does not support CRDs at all — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#70?email_source=notifications&email_token=AAF3KAF5HYLJN7GF3ORMCG3Q4MWYBA5CNFSM4KCWKZDKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEIFOALQ#issuecomment-571138094>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAF3KACWOPQBB4WCJV7IBBDQ4MWYBANCNFSM4KCWKZDA> .