Exercise 10.1

tduszyk

Hi all,

I upgraded K8s to 1.18.2 and I'm still getting an error while running:
$ kubectl edit ingress ingress test

 # ingresses.extensions "ingress-test" was not valid:
 # * : Invalid value: "The edited file failed validation": ValidationError(Ingress.spec.rules[0].http.paths[0]): unknown field "pathType" in io.k8s.api.extensions.v1beta1.HTTPIngressPath

chrispokorni

Hi @tduszyk,

From the error provided, it seems to be an issue with the yaml of your ingress. Such issues are not fixed by cluster upgrades, but by carefully examining the yaml for incorrect indentation or unexpected configuration fields.

I suggest starting with the yaml file included in the SOLUTIONS tarball and start making edits to that in order to preserve as much of the correct indentation as possible.

In addition, I recommend reviewing the official documentation as well:

https://kubernetes.io/docs/concepts/services-networking/ingress/

Regards,
-Chris

tduszyk

Hi @chrispokorni

I am using the file provided in the SOLUTIONS tarball, plus the necessary edits. This unknown field pathType is actually what we are being asked to add to the file.

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
annotations:
kubernetes.io/ingress.class: traefik
creationTimestamp: "2020-05-20T11:20:19Z"
generation: 1
name: ingress-test
namespace: default
resourceVersion: "1684153"
selfLink: /apis/extensions/v1beta1/namespaces/default/ingresses/ingress-test
uid: de4136aa-4a85-4f95-a1b2-cd3dcb276341
spec:
rules:
- host: www.example.com
http:
paths:
- backend:
serviceName: secondapp
servicePort: 80
path: /
pathType: ImplementationSpecific
- host: thirdpage.org
http:
paths:
- backend:
serviceName: thirdpage
servicePort: 80
path: /
pathType: ImplementationSpecific
status:
loadBalancer: {}

chrispokorni

It seems to be an older version of the file. The apiVersion is incorrect. apiVersion should be networking.k8s.io/v1beta1. You can see that in the documentation too following the link provided earlier.

Have you downloaded the most up-to-date SOLUTIONS tarball, supporting the current course version 1.18.1? Because the latest tarball includes the file with the correct apiVersion.

Regards,
-Chris

tduszyk

Yes, I downloaded the newest SOLUTIONS.
I ran kubectl delete ingress ingress-test to delete and recreate it using kubectl create -f ./ingress.rule.yaml but it didn't help. When I am trying to edit ingress, I have the wrong apiVersion. What am I doing wrong?

chrispokorni

The lab exercise works as expected on Kubernetes 1.18.1, as it is presented in the lab manual. I just ran the Ingress exercise and it all worked fine. I also downloaded a new copy of the SOLUTIONS tarball and the included ingress.rule file shows the correct apiVersion.

What was your Kubernetes version before the upgrade to 1.18.2? Did you upgrade all your nodes to 1.18.2? Things may change between minor versions also, so expect things to behave differently when running the labs on a different version than the one presented in the manual.

You can also try editing the ingress.rule file right before creating the ingress resource. Have you tried that instead?

Regards,
-Chris

tduszyk

Thank you Chris.

I ended up redeploying fresh Ubuntu 18.04 VMs and installing K8s 1.18.1-00. It's working now as expected.