Lab 4.3 - unable to recognize "complete-demo.yaml": no matches for kind "Deployment"

I've pulled down the config for the sock shop, but cannot run it:
kubectl apply -n sock-shop -f complete-demo.yaml
unable to recognize "complete-demo.yaml": no matches for kind "Deployment" in version "extensions/v1beta1"
I've tried changing the apiVersion to apps/v1beta1
and apps/v1
but that just gives me other errors.
Something I'm doing wrong? Perhaps because I'm running v1.16.0 rather than the course suggested 15.x?
Comments
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Also, on this, what is the difference between extensions and apps apis, I don't think I've spotted an explanation of this so far?
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Managed to get this working, I changed the apiVersion to apps/v1 and then added the now required 'selector' elements to the deploySpec.
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Hi @dnx,
You experienced first hand how fast things change in Kubernetes, and how some features no longer work as expected as a result of these changes. This is one of the reasons why the lab exercises are written and tested on a particular Kubernetes release - in this case v1.15.1.
However, good troubleshooting work! I am glad you found a workaround for the two API groups issue. As a feature matures in Kubernetes, it transitions between various API groups, which are representative of the feature's level of maturity.
The API resource "Deployment" started as part of the extensions/ API group, but in recent Kubernetes releases, it transitioned into the newer apps/ API group, with the extensions/ group being marked to be deprecated. For a while, both API groups were supported. But it looks like we finally reached the point where the extensions/ group is no longer being supported.
Thanks for reporting the issues. It will be corrected in a future course update release.Regards,
-Chris0 -
You cannot start sock-shop in Kubernetes 1.16 version because of deprecated APIs , but you can convert it
cd microservices-demo/deploy/kubernetes kubectl create namespace sock-shop kubectl convert -f . | kubectl create -f - watch kubectl get pods -n sock-shop # wait for all in status Running kubectl describe svc front-end -n sock-shop
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You have to modify each deployment section as this
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