generate kube shall print spec.enableServiceLinks: false

[dilyanpalauzov]

podman generate kube shall emit

spec:
  enableServiceLinks: false

To my knowledge podman does not utilize the XYZ_SERVICE_PORT any XYZ_SERVICE_PORT environment variables per service called XYZ, when running containers/pod. When the pod created by podman is moved to Kubernetes, these variables will not be needed, too. The above snippet prevents Kubernetes from creating the unused variables.

https://kubernetes.io/docs/concepts/services-networking/connect-applications-service/#accessing-the-service

$ podman version
Client:       Podman Engine
Version:      4.3.0-dev
API Version:  4.3.0-dev
Go Version:   go1.18.5
Git Commit:   c9565b051c3843e5bad63f062f8c3125c548dd63
Built:        Thu Aug 25 10:27:07 2022
OS/Arch:      linux/amd64

[rhatdan]

@umohnani8 PTAL
Are you saying that podman generate kube should be generating

spec:
      enableServiceLinks: false

@dilyanpalauzov Interested in opening a PR?

[dilyanpalauzov]

Yes, I am saying this. No, I am not going to open PR, since I do not know go and the podman internals.

[rhatdan]

Thanks for the report.

[rhatdan]

@saschagrunert @haircommander Do you agree with @dilyanpalauzov assessment?

[haircommander]

yes this seems correct. Another future thing is the service created for the pod could populate those env variables, though that'd be more work than this approach

[saschagrunert]

Yep, since it defaults to true it should be probably turned off via the pod spec.