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omrikiei / ktunnel

A cli that exposes your local resources to kubernetes
GNU General Public License v3.0
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Ktunnel crashes if we try to use the kube config from env variable #57

Closed Mariappan closed 3 years ago

Mariappan commented 3 years ago

Hello, Thanks for this nice k8s plugin.

Most dev use this idea of running a proxy container to forward the k8s traffic to local dev environment manually. But this plugin really makes that process smoother, with a single command.

I am trying to use this plugin for my dev environment and I am facing a minor issue with my setup.

I have multiple clusters configured though env variable KUBECONFIG https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/#the-kubeconfig-environment-variable

When trying to start ktunnel using this config, ktunnel crashes with following trace:

ERRO[0000] Failed getting kubernetes config: stat /home/maari/.kube/config:/home/maari/.kube/first.yaml:/home/maari/.kube/second.yaml: no such file or directory
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x1323f7a]

goroutine 1 [running]:
k8s.io/client-go/kubernetes.NewForConfig(0x0, 0xc0003f126f, 0xff9ff3fe7fc, 0x37)
    /home/maari/go/pkg/mod/k8s.io/client-go@v0.20.0/kubernetes/clientset.go:395 +0x3a
github.com/omrikiei/ktunnel/pkg/k8s.getClients.func1()
    /home/maari/documents/github/ktunnel/pkg/k8s/common.go:75 +0x34
sync.(*Once).doSlow(0x2170878, 0xc0004239b8)
    /usr/lib/go/src/sync/once.go:68 +0xec
sync.(*Once).Do(...)
    /usr/lib/go/src/sync/once.go:59
github.com/omrikiei/ktunnel/pkg/k8s.getClients(0x2136a40)
    /home/maari/documents/github/ktunnel/pkg/k8s/common.go:74 +0x69
github.com/omrikiei/ktunnel/pkg/k8s.ExposeAsService(0x2136a40, 0xc000446320, 0x7010, 0x164d91e, 0x3, 0xc0003d35d0, 0x1, 0x1, 0xc00043c1a0, 0x1f, ...)
    /home/maari/documents/github/ktunnel/pkg/k8s/exposer.go:20 +0x45
github.com/omrikiei/ktunnel/cmd.glob..func2(0x212bee0, 0xc0003d35c0, 0x2, 0x2)
    /home/maari/documents/github/ktunnel/cmd/expose.go:42 +0x1e5
github.com/spf13/cobra.(*Command).execute(0x212bee0, 0xc0003d3580, 0x2, 0x2, 0x212bee0, 0xc0003d3580)
    /home/maari/go/pkg/mod/github.com/spf13/cobra@v1.1.3/command.go:856 +0x2c2
github.com/spf13/cobra.(*Command).ExecuteC(0x212b9e0, 0x7, 0x0, 0x0)
    /home/maari/go/pkg/mod/github.com/spf13/cobra@v1.1.3/command.go:960 +0x375
github.com/spf13/cobra.(*Command).Execute(...)
    /home/maari/go/pkg/mod/github.com/spf13/cobra@v1.1.3/command.go:897
github.com/omrikiei/ktunnel/cmd.Execute()
    /home/maari/documents/github/ktunnel/cmd/root.go:45 +0x65
main.main()
    /home/maari/documents/github/ktunnel/main.go:8 +0x25
omrikiei commented 3 years ago

Hi @Mariappan , thank you for submitting the issue - I'll take a look and update the ticket soon