82 lines
1.7 KiB
Markdown
82 lines
1.7 KiB
Markdown
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> 本文作者：丁辉
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# Kubeadm安装K8s失败记录
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- 在我部署 k8s 的时候，最近会遇到 flannel 一直重启的情况（报错 pod cidr not assigne）
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```bash
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vim /etc/kubernetes/manifests/kube-controller-manager.yaml
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```
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```bash
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- --allocate-node-cidrs=true
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- --cluster-cidr=10.244.0.0/16
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```
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```bash
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systemctl restart kubelet
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```
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- k8s-kubeadm单节点搭建导致主节点污点禁止pod运行
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```bash
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#查看污点
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kubectl describe nodes master | grep -A 3 Taints
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#删除
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kubectl taint nodes <node> <taints>-
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#一次删除多个
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kubectl taint nodes --all node-role.kubernetes.io/control-plane- node-role.kubernetes.io/master-
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```
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- k8s-kubeadm-containerd搭建网络通讯问题
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```bash
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vim /etc/kubernetes/manifests/kube-controller-manager.yaml
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增加参数：
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- --allocate-node-cidrs=true
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- --cluster-cidr=10.244.0.0/16
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systemctl restart kubelet
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```
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- K8s "tab" 报错
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```bash
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yum install bash-completion -y
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source /usr/share/bash-completion/bash_completion
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source <(kubectl completion bash)
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```
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- 安装 K8s 失败，发现缺少一下模块
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1. 添加模块
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```bash
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cat > /etc/sysconfig/modules/ipvs.modules <<EOF
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#!/bin/bash
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modprobe -- ip_vs
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modprobe -- ip_vs_rr
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modprobe -- ip_vs_wrr
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modprobe -- ip_vs_sh
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modprobe -- nf_conntrack
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EOF
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```
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2. 加载
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```bash
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modprobe br_netfilter
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lsmod | grep netfilter
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sysctl -p /etc/sysctl.d/k8s.conf
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sysctl --system
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```
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3. 替换镜像源
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```bash
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sed -i 's#sandbox_image = "k8s.gcr.io/pause:3.6"#sandbox_image = "registry.aliyuncs.com/google_containers/pause:3.6"#' /etc/containerd/config.toml
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```
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