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Image Pull Stuck
Kube Event Log Stuck with the following log. Normal Pulling 30m kubelet Pulling image "registry.example.com/test/code-go:release-22971" Get Problem Node kubectl get po -o wide | grep foo kubectl get node -o wide Describe Node Status Check node event...
Kubernetes CIDR
Background Sealos 安装的 k8s 的 CIDR 是 100.64.xxx.xxx,会导致 keycloak 异常(什么异常?) SonyFlake 的 isPrivateIPv4 没有判断 100.xxx。 100.64.0.0/10 是 RFC 6598 定义的“共享地址”,不是 RFC1918 私有地址。 Basic Concepts CIDR (Classless Inter-Domain Routing): A method for representing IP address...
kube-state-metrics
Errors kube-state-metricsE0624 16:46:27.590502 1 metrics_handler.go:227] "Failed to write metrics" ^CE0624 16:47:27.573964 1 metrics_handler.go:227] "Failed to write metrics" err="failed to write help text: write tcp 100.81.9.63:8080->100.81.9.62:...
kubeadm Join Cluster Error
背景 在 master 机器中使用 one-ansible 安装 k8s 集群。最终发现原因是 kubernetes.example.local 这个域名连不上,在新的节点上加上 host 重新执行 kubeadm join 就好了。 错误日志 kubeadm join kubernetes.example.local:6443 --token molqef.zcb8h6z6i59wxdvf --discovery-token-ca-cert-hash sha256:c146d7fb88ecc7e41389d7...
NFS Mount Failed
Errors SourceEvents: Type Reason Age From Message ---- ------ ---- ---- ------- Warning FailedMount 9m39s (x19102 over 26d) kubelet MountVolume.SetUp failed for volume "pvc-510bc02...
Rancher PVC Pending
因为 local path storage 在动态创建 helper pod 的时候,没有成功拉到 helper pod 的镜像 Errors PVC Pending code-gitaly-data-code-gitaly-0-2-0 Pending local-path 216d Describe pvc. Type: Normal Reason: ExternalProvisioning Age: 4m32s (x15836 over 2d18h) From: ...
Helm Secret Number
Rander 会 load 所有版本的 Helm Secret,会卡死,要限制 helm 保留的版本。
Calico/Node is Not Ready
Errors Events: Type Reason Age From Message ---- ------ ---- ---- ------- Warning Unhealthy 3m18s (x9121 over 25h) kubelet, instance-smuk9oo0-2 ...
kubectl edit
https://kubernetes.io/docs/reference/kubectl/generated/kubectl_edit/ Examples Edit in JSON kubectl edit -o json deploy foo Change Editor KUBE_EDITOR="vim" kubectl edit deploy foo Save Config kubectl edit deploy foo --save-config 把本次修改后的完整资源配置,保存到 annotati...