Lab 3.2 port-forwarding to example app fails
In Lab 3.2, at Step 4 trying to access the deployed application using the following command:
kubectl port-forward svc/argocd-example-app-service 9090:3000
and trying to access to http://localhost:9090/, it crashes after 1st or following attempts with the following message:
$ kubectl port-forward svc/argocd-example-app-service 9090:3000 Forwarding from 127.0.0.1:9090 -> 3000 Forwarding from [::1]:9090 -> 3000 Handling connection for 9090 E0604 19:10:22.343701 437481 portforward.go:409] an error occurred forwarding 9090 -> 3000: error forwarding port 3000 to pod 93f214d64df6a844543a6c6ddcbda3c327c799adecddbdb749d88d8ab4524f9c, uid : failed to execute portforward in network namespace "/var/run/netns/cni-82f4f592-8524-2180-8043-324a3e202f67": failed to connect to localhost:3000 inside namespace "93f214d64df6a844543a6c6ddcbda3c327c799adecddbdb749d88d8ab4524f9c", IPv4: dial tcp4 127.0.0.1:3000: connect: connection refused IPv6 dial tcp6 [::1]:3000: connect: connection refused error: lost connection to pod
This happens with a local kind cluster (kind v0.23.0) with k8s v1.29 using Manjaro Linux as OS.
From my experience with other similar cases, this happens when the container image (in this case liquidreply/argocd-example-app
) is missing some configuration at the Dockerfile/Containerfile.
Comments
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On the other hand, I used another guestbook application from github.com/argoproj/argocd-example-apps and the port-forward command works well without issues.
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I'm experiencing the same. Did anyone figure out the root cause?
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The container port ist not 3000, it is 80, see: https://github.com/lftraining/LFS256-code/pull/5/files
0
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