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I'm encountering an error message during app deployment with Istio sidecar, and I could use some assistance troubleshooting. Here are the details:
Error Message:
Error creating: Internal error occurred: failed calling webhook "namespace.sidecar-injector.istio.io": failed to call webhook: Post "https://istiod.istio-system.svc:443/inject?timeout=10s" :
context deadline exceeded
Version: istiod-1.17.8
AKS Version: 1.27.9
Details:
Other apps in the same namespace with Istio sidecar deployed smoothly.
The only difference is the number of environment variables. This app has around 340 environment variables defined using ConfigMap. However, the size of deployment is 360KB, which is well below the 1MB limit.
Relevant Log from Istiod Pods:
2024-04-26T21:43:43.731363Z info Sidecar injection request for nms-love-k8s/you-are-awesome-747f946d56-***** (actual name not yet known)
2024-04-26T21:43:56.971586Z error Could not write response: write tcp 172.16.3.205:15017->172.16.3.246:55318: write: broken pipe
2024-04-26T21:43:56.971635Z info http: superfluous response.WriteHeader call from istio.io/istio/pkg/kube/inject.(*Webhook).serveInject (webhook.go:1072)
Mitigation:
The issue somewhat subsided after increasing the count of Istio pods from 2 to 8. (I'm still getting errors initially but after a couple of retries application pods are deployed.)
I'd appreciate any insights or assistance with the following:
Has anyone else encountered this issue, and if so, what was the fix?
Do you have any other insights or suggestions for troubleshooting?
Thank you!
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Hi Everyone,
I'm encountering an error message during app deployment with Istio sidecar, and I could use some assistance troubleshooting. Here are the details:
Error Message:
Version: istiod-1.17.8
AKS Version: 1.27.9
Details:
Other apps in the same namespace with Istio sidecar deployed smoothly.
The only difference is the number of environment variables. This app has around 340 environment variables defined using ConfigMap. However, the size of deployment is 360KB, which is well below the 1MB limit.
Relevant Log from Istiod Pods:
Mitigation:
The issue somewhat subsided after increasing the count of Istio pods from 2 to 8. (I'm still getting errors initially but after a couple of retries application pods are deployed.)
I'd appreciate any insights or assistance with the following:
Has anyone else encountered this issue, and if so, what was the fix?
Do you have any other insights or suggestions for troubleshooting?
Thank you!
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