Diff sometimes errors out with the message "both left and right were nil for diff"

[gotwarlost]

Race condition where an object is deleted between the time it is LIST-ed versus the time it is GET-ted

[gotwarlost]

@sherman-grewal something easy to start with

[sherman-grewal]

I can't seem to reproduce this error, would you happen to have any ideas on how I can reproduce it?

This is what I've done so far (in an attempt to reproduce the error).

1. Start with the demo project: qbec init demo --with-example
2. Run qbec apply default to create the objects
3. Add the following code somewhere between the time it is LIST-ed versus the time it is GET-ted when we run qbec diff default

internal/commands/diff.go:diff()

if ob.GetName() == "demo-deploy" {
	cmd := exec.Command("./test.sh")
	err := cmd.Run()
	if err != nil {
		return err
	}
}

test.sh

#!/bin/bash

kubectl delete deployments/demo-deploy

4. Run qbec diff default

I thought by deleting the deployment object between the time it is LIST-ed versus the time it is GET-ted would reproduce the issue, but it does not seem to be the case. Let me know if I am missing something!

@gotwarlost

[gotwarlost]

kubectl delete deploy probably doesn't wait for the deployment object to be removed - the pod has to go away first etc. Try sleeping for 30s or smth after running the delete

[harsimranmaan]

use kubectl delete deployments/demo-deploy --wait=true in the script. Also remove the demo-deploy deployment from components.