[TOC]
## 二進制
### 查看集群情況
```shell
$ kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8s-master01 Ready master 48d v1.18.18
k8s-master02 Ready master 48d v1.18.18
k8s-node01 Ready <none> 48d v1.18.18
k8s-node02 Ready <none> 48d v1.18.18
k8s-node03 Ready <none> 48d v1.18.18
```
### 停止調度
```shell
$ kubectl cordon k8s-master02
node/k8s-master02 cordoned
```
### 驅逐pod
```shell
$ kubectl drain --ignore-daemonsets --delete-local-data k8s-master02
node/k8s-master02 already cordoned
WARNING: ignoring DaemonSet-managed Pods: kube-mon/node-exporter-42s9m, kube-system/calico-node-wgpkn
node/k8s-master02 drained
```
### 停止服務
```shell
$ systemctl stop kubelet kube-proxy
```
### 刪除節點
```shell
$ kubectl delete node k8s-master02
node "k8s-master02" deleted
```
### 確認kubelet數據目錄
```shell
$ cat /data/k8s/conf/kubelet.conf
KUBELET_OPTS="--alsologtostderr=true \
--logtostderr=false \
--v=4 \
--log-dir=/data/k8s/logs/kubelet \
--hostname-override=k8s-master02 \
--network-plugin=cni \
--cni-conf-dir=/etc/cni/net.d \
--cni-bin-dir=/opt/cni/bin \
--kubeconfig=/data/k8s/certs/kubelet.kubeconfig \
--bootstrap-kubeconfig=/data/k8s/certs/bootstrap.kubeconfig \
--config=/data/k8s/conf/kubelet-config.yaml \
--cert-dir=/data/k8s/certs/ \
--pod-infra-container-image=ecloudedu/pause-amd64:3.0"
```
> 確認是否有 `root-dir` 參數。如果有的話,那kubelet數據就存放在該目錄下,默認在 `/var/lib/kubelet` 目錄下
### 確認docker數據目錄
```shell
$ cat /data/docker/conf/daemon.json
{
"data-root": "/data/docker/data/",
"exec-opts": ["native.cgroupdriver=systemd"],
"registry-mirrors": [
"https://1nj0zren.mirror.aliyuncs.com",
"https://docker.mirrors.ustc.edu.cn",
"http://f1361db2.m.daocloud.io",
"https://registry.docker-cn.com"
]
}
```
> 確認是否有 `data-root 或者 graph` 參數。如果有的話,那docker數據就存放在該目錄下,默認在 `/var/lib/docker` 目錄下
### 清理docker環境
```shell
$ docker system prune -af
Deleted Containers:
a0c332924f18858a4bc113b4677c3c809693167a8e4c43ec9034f307789f9302
1a1080345aa328c739dde0b0ade040260cb75b62fffd71fcc5efb2c3238891a0
78aaf0c008d412497b287ccc0279c0d96b907511ef2260ed245411dfdb93244a
320e0fafe7d4148e2ad68d118da9c96549b5cf6a1d22d9fd5f019af4deb41e74
c39d21b376d9fa77cd8fa85b4e726a11efc6a2eb50e0cb704dcd1553bf1f1367
315aa9b5d36498189b4f863769e27b7790f4608cc5102adfbcd177b1ba5d9818
Deleted Images:
untagged: calico/node:v3.18.6
untagged: calico/node@sha256:36be4cb9ebe1616d33fbcddffef0e82ce458db60f6af5e534c85c10653f47f6b
deleted: sha256:13143ba4a4e2bcc773e00590f635bcf9d66e411dc508964053b229c2d7625549
deleted: sha256:fce8c470bff7e58c132f2a3f532ce6708b0b1bb7527f1de0e25fa848e768f666
deleted: sha256:9ee1dc4b503dadee2a0ad8c13a9bab8794eb7099f56b36c9ad2fde571f27b5fc
untagged: prom/node-exporter:v1.1.1
untagged: prom/node-exporter@sha256:5982c5e716c32a9ec5032b6b86be054a9abe911e3c79b376a7f011d2a7551add
deleted: sha256:15a32669b6c2116e70469216e8350dbd59ebd157f0fc6eb4543b15e6239846c0
deleted: sha256:f020a746d039bca27138f0ce7a4379d06e3f26ea961ac2210c01b82994dddd31
deleted: sha256:6d7f39eeb256633aed06806aea7f73a379ab38734e33dfbe2cef98369dbd5c8d
deleted: sha256:4de246f79fafeababec70d1aa84bc7158a31f59fbec987bc6a09107f9ffa5307
untagged: calico/cni:v3.18.6
untagged: calico/cni@sha256:50fedf3349c647191cc03b023f00d446fb55e0a302cb2ea5eb2e55e47da7614c
deleted: sha256:1f4b3a79aa0e7e4b33d0081d7e7d49f5c7966351c5e66160b41e00340ddac87e
deleted: sha256:74beb3a20f1c76aacc30d44074ac86c402325051b78ad2baed15c355d34d577e
deleted: sha256:4ddffbe7a9a76dbf88ce8af8ae7e3344e5acf8436da98e5694a537a237f0864a
deleted: sha256:b52b7b8a27a6c0a2bab76736a5909c089312f7f61b2ae8d4e49c3ea13c6c73e8
untagged: calico/pod2daemon-flexvol:v3.18.6
untagged: calico/pod2daemon-flexvol@sha256:9d4fa2f5cc456e4627cac5a659e4a5f1b007e98bd469e6b74f24280b71e9883a
deleted: sha256:3d0771521a982a17095a855a377c18e08392b1b686c71f17d3dc20b56c092f5d
deleted: sha256:252205e4909c8bae5f8123f051c15a89c43c04c7a979d94f885b4b54aa5a7fb0
deleted: sha256:c4fbfbd148c3733dad69cfabf16bacf63969a11dd61566bcb440a0ed1c4bb337
deleted: sha256:55ab1b0ba0643fed84cb130d2830aa419495f1fdc387336d74adcd9466def854
deleted: sha256:46fb51f14d2a1c51af6a6a767269bf2c76e7d7740e59d3b12c063924cddf1bd4
deleted: sha256:97a662d42ccd03d571bb6f4a7ed0af6601a0b132ab5bcee7aab12cce46c7b354
deleted: sha256:8d19f98506479bd64e10a42c10a1dc3e8af3083447bf50a5c39645ab06fabacb
deleted: sha256:d2cfc94608a26afb5d4421a53eab2505f1da23144db41b6748f418efa7e07c42
untagged: ecloudedu/pause-amd64:3.0
untagged: ecloudedu/pause-amd64@sha256:f04288efc7e65a84be74d4fc63e235ac3c6c603cf832e442e0bd3f240b10a91b
deleted: sha256:99e59f495ffaa222bfeb67580213e8c28c1e885f1d245ab2bbe3b1b1ec3bd0b2
deleted: sha256:666604249ff52593858b7716232097daa6d721b7b4825aac8bf8a3f45dfba1ce
deleted: sha256:7897c392c5f451552cd2eb20fdeadd1d557c6be8a3cd20d0355fb45c1f151738
deleted: sha256:5f70bf18a086007016e948b04aed3b82103a36bea41755b6cddfaf10ace3c6ef
Total reclaimed space: 388.9MB
$ systemctl stop docker
```
### 取消docker掛載目錄
```shell
$ umount $(df -HT | grep '/var/lib/kubelet/pods' | awk '{print $7}')
$ rm -rf /var/lib/kubelet/ /data/docker/data/
```
### 刪除k8s網絡插件目錄
```shell
$ rm -rf /opt/cni/bin /etc/cni/net.d /var/lib/cni
```
### 刪除k8s的systemd文件
```shell
$ rm -rf /usr/lib/systemd/system/kubelet.service /usr/lib/systemd/system/kube-proxy.service
```
> 自行清理k8s自定的目錄以及相關命令
- 前言
- 架構
- 部署
- kubeadm部署
- kubeadm擴容節點
- 二進制安裝基礎組件
- 添加master節點
- 添加工作節點
- 選裝插件安裝
- Kubernetes使用
- k8s與dockerfile啟動參數
- hostPort與hostNetwork異同
- 應用上下線最佳實踐
- 進入容器命名空間
- 主機與pod之間拷貝
- events排序問題
- k8s會話保持
- 容器root特權
- CNI插件
- calico
- calicoctl安裝
- calico網絡通信
- calico更改pod地址范圍
- 新增節點網卡名不一致
- 修改calico模式
- calico數據存儲遷移
- 啟用 kubectl 來管理 Calico
- calico卸載
- cilium
- cilium架構
- cilium/hubble安裝
- cilium網絡路由
- IP地址管理(IPAM)
- Cilium替換KubeProxy
- NodePort運行DSR模式
- IP地址偽裝
- ingress使用
- nginx-ingress
- ingress安裝
- ingress高可用
- helm方式安裝
- 基本使用
- Rewrite配置
- tls安全路由
- ingress發布管理
- 代理k8s集群外的web應用
- ingress自定義日志
- ingress記錄真實IP地址
- 自定義參數
- traefik-ingress
- traefik名詞概念
- traefik安裝
- traefik初次使用
- traefik路由(IngressRoute)
- traefik中間件(middlewares)
- traefik記錄真實IP地址
- cert-manager
- 安裝教程
- 頒布者CA
- 創建證書
- 外部存儲
- 對接NFS
- 對接ceph-rbd
- 對接cephfs
- 監控平臺
- Prometheus
- Prometheus安裝
- grafana安裝
- Prometheus配置文件
- node_exporter安裝
- kube-state-metrics安裝
- Prometheus黑盒監控
- Prometheus告警
- grafana儀表盤設置
- 常用監控配置文件
- thanos
- Prometheus
- Sidecar組件
- Store Gateway組件
- Querier組件
- Compactor組件
- Prometheus監控項
- grafana
- Querier對接grafana
- alertmanager
- Prometheus對接alertmanager
- 日志中心
- filebeat安裝
- kafka安裝
- logstash安裝
- elasticsearch安裝
- elasticsearch索引生命周期管理
- kibana安裝
- event事件收集
- 資源預留
- 節點資源預留
- imagefs與nodefs驗證
- 資源預留 vs 驅逐 vs OOM
- scheduler調度原理
- Helm
- Helm安裝
- Helm基本使用
- 安全
- apiserver審計日志
- RBAC鑒權
- namespace資源限制
- 加密Secret數據
- 服務網格
- 備份恢復
- Velero安裝
- 備份與恢復
- 常用維護操作
- container runtime
- 拉取私有倉庫鏡像配置
- 拉取公網鏡像加速配置
- runtime網絡代理
- overlay2目錄占用過大
- 更改Docker的數據目錄
- Harbor
- 重置Harbor密碼
- 問題處理
- 關閉或開啟Harbor的認證
- 固定harbor的IP地址范圍
- ETCD
- ETCD擴縮容
- ETCD常用命令
- ETCD數據空間壓縮清理
- ingress
- ingress-nginx header配置
- kubernetes
- 驗證yaml合法性
- 切換KubeProxy模式
- 容器解析域名
- 刪除節點
- 修改鏡像倉庫
- 修改node名稱
- 升級k8s集群
- 切換容器運行時
- apiserver接口
- 其他
- 升級內核
- k8s組件性能分析
- ETCD
- calico
- calico健康檢查失敗
- Harbor
- harbor同步失敗
- Kubernetes
- 資源Terminating狀態
- 啟動容器報錯