Cilium Installation issue on GKE Cluster

[Shikhar0411]

Is there an existing issue for this?

• I have searched the existing issues

What happened?

A bug happened!
While installing Cilium Service mesh, in a GKE cluster using the method described in the installation page/eCHO episode 32, I have been running into the following error. I have not been able to find a fix for this

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🔮 Auto-detected Kubernetes kind: GKE
ℹ️ using Cilium version "v1.11.3"
🔮 Auto-detected cluster name: gke-pp-piman-dev-us-central1-a-gentest-gke
🔮 Auto-detected IPAM mode: kubernetes
🔮 Auto-detected datapath mode: gke
❌ Unable to auto-detect GKE native routing CIDR. Is "gcloud" installed?
ℹ️ You can set the native routing CIDR manually with --ipv4-native-routing-cidr
↩️ Rolling back installation...

Error: Unable to install Cilium: unable to derive region and zone from context name "gentest": not in the form gke_PROJECT_ZONE_NAME

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Moreover, Even installing cilium leads to the same error

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🔮 Auto-detected Kubernetes kind: GKE
ℹ️ using Cilium version "v1.11.3"
🔮 Auto-detected cluster name: gke-pp-piman-dev-us-central1-a-gentest-gke
🔮 Auto-detected IPAM mode: kubernetes
🔮 Auto-detected datapath mode: gke
❌ Unable to auto-detect GKE native routing CIDR. Is "gcloud" installed?
ℹ️ You can set the native routing CIDR manually with --ipv4-native-routing-cidr
↩️ Rolling back installation...

Error: Unable to install Cilium: unable to derive region and zone from context name "gentest": not in the form gke_PROJECT_ZONE_NAME

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Cilium Version

cilium-cli: v0.11.1 compiled with go1.18.1 on linux/amd64
cilium image (default): v1.11.3
cilium image (stable): v1.11.4
cilium image (running): v1.10.3-gke.15

Kernel Version

Linux gke-access 4.15.0-1098-gcp #111~16.04.1-Ubuntu SMP Tue Apr 13 19:05:08 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Kubernetes Version

Client Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.0", GitCommit:"cb303e613a121a29364f75cc67d3d580833a7479", GitTreeState:"clean", BuildDate:"2021-04-08T16:31:21Z", GoVersion:"go1.16.1", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.10-gke.2000", GitCommit:"0823380786b063c3f71d5e7c76826a972e30550d", GitTreeState:"clean", BuildDate:"2022-03-17T09:22:22Z", GoVersion:"go1.16.14b7", Compiler:"gc", Platform:"linux/amd64"}

Sysdump

No response

Relevant log output

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Anything else?

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[pchaigno]

Is gcloud installed?

[Shikhar0411]

It is, infact its a GKE cluster only. Also I tried gcloud command, it works. I have been running multiple applications on this as a test cluster, even Istio worked fine, dont know why getting this issue in Cilium