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https://issues.apache.org/jira/browse/YUNIKORN-726?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Craig Condit resolved YUNIKORN-726.
-----------------------------------
Assignee: Craig Condit
Resolution: Invalid
After YUNIKORN-941, this can no longer occur.
> Quick start results in admission controller crashloop back off.
> ---------------------------------------------------------------
>
> Key: YUNIKORN-726
> URL: https://issues.apache.org/jira/browse/YUNIKORN-726
> Project: Apache YuniKorn
> Issue Type: Sub-task
> Reporter: Holden Karau
> Assignee: Craig Condit
> Priority: Major
> Labels: pull-request-available
>
> Following the quick start guide at [https://yunikorn.apache.org/docs/] the
> admission controller fails start with an error indicating that it can't read
> the PEM data in the certificate input. Looking at the webhook-server-tls
> there is data in the key.pem but not cert.pem.
>
> It looks like it does generate a certificate signing request:
>
> {code:java}
> (base) holden@hkdesktop:~/repos/incubator-yunikorn-k8shim$ kubectl describe
> certificatesigningrequest --all-namespaces
> Name: yunikorn-admission-controller-service.yunikorn
> Labels: <none>
> Annotations: <none>
> CreationTimestamp: Wed, 23 Jun 2021 16:03:43 -0700
> Requesting User: system:serviceaccount:yunikorn:yunikorn-admin
> Signer: kubernetes.io/legacy-unknown
> Status: Pending
> Subject:
> Common Name: yunikorn-admission-controller-service.yunikorn.svc
> Serial Number:
> Subject Alternative Names:
> DNS Names: yunikorn-admission-controller-service
> yunikorn-admission-controller-service.yunikorn
> yunikorn-admission-controller-service.yunikorn.svc
> Events: <none>{code}
>
> This is on K3s 1.21
>
> {code:java}
> 2021-06-23T23:09:33.107Z INFO log/logger.go:93 scheduler configuration,
> pretty print {"configs": "{\n \"clusterId\": \"my-kube-cluster\",\n
> \"clusterVersion\": \"0.1\",\n \"policyGroup\": \"queues\",\n
> \"schedulingIntervalSecond\": 1000000000,\n \"absoluteKubeConfigFilePath\":
> \"\",\n \"loggingLevel\": 0,\n \"logEncoding\": \"console\",\n
> \"logFilePath\": \"\",\n \"volumeBindTimeout\": 10000000000,\n \"testMode\":
> false,\n \"eventChannelCapacity\": 1048576,\n \"dispatchTimeout\":
> 300000000000,\n \"kubeQPS\": 1000,\n \"kubeBurst\": 1000,\n \"predicates\":
> \"\",\n \"operatorPlugins\": \"general,yunikorn-app\",\n
> \"enableConfigHotRefresh\": false\n}"}2021-06-23T23:09:33.107Z INFO
> log/logger.go:93 scheduler configuration, pretty print {"configs": "{\n
> \"clusterId\": \"my-kube-cluster\",\n \"clusterVersion\": \"0.1\",\n
> \"policyGroup\": \"queues\",\n \"schedulingIntervalSecond\": 1000000000,\n
> \"absoluteKubeConfigFilePath\": \"\",\n \"loggingLevel\": 0,\n
> \"logEncoding\": \"console\",\n \"logFilePath\": \"\",\n
> \"volumeBindTimeout\": 10000000000,\n \"testMode\": false,\n
> \"eventChannelCapacity\": 1048576,\n \"dispatchTimeout\": 300000000000,\n
> \"kubeQPS\": 1000,\n \"kubeBurst\": 1000,\n \"predicates\": \"\",\n
> \"operatorPlugins\": \"general,yunikorn-app\",\n \"enableConfigHotRefresh\":
> false\n}"}2021-06-23T23:09:33.107Z FATAL webhook/webhook.go:56 Failed to load
> key pair {"error": "tls: failed to find any PEM data in certificate
> input"}main.main
> /Users/boyuan/go/src/yunikorn-release-v0.10.0/incubator-yunikorn-release/staging/apache-yunikorn-0.10.0-incubating-src/k8shim/pkg/plugin/admissioncontrollers/webhook/webhook.go:56runtime.main
> /Users/boyuan/go/install/go1.14.14/src/runtime/proc.go:203{code}
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