devops之k8s

限制日志大小

cat > /etc/docker/daemon.json << EOF
{
“registry-mirrors”: [
“https://1nj0zren.mirror.aliyuncs.com",
“https://docker.mirrors.ustc.edu.cn",
“http://f1361db2.m.daocloud.io",
“https://registry.docker-cn.com"
],
“log-driver”: “json-file”,
“log-opts”: {
“max-size”: “20m”,
“max-file”: “50”
}
}
EOF

添加工作pod
kubectl apply -f kuboard_2021_01_29_11_27_09.yaml

kubectl get svc –all-namespaces

kubectl get pods –namespace ns | grep app
kubectl get pv -A

几种类型 configmap cm pod service svc deployment deploy statefulset sts

编辑ymal

kubectl -n ns-elasticsearch edit statefulset elasticsearch-master

kubectl -n ns edit deployment svc-app-search
kubectl -n ns edit deployment db-elasticsearch
kubectl -n ns edit configmap app-search-conf

查看pod
kubectl get pods -A

删除pod 删除后自动重启
kubectl -n openapp delete pod pod名称
删除无用的pod
kubectl get pods -A | egrep ‘Error|CrashLoopBackOff|Evicted’ | awk ‘{print $2}’ | xargs kubectl -n openapp delete pod

查看pod网络
kubectl -n openapp get pods -o wide

查看pod的ymal
kubectl -n openapp get pod [podName] -o yaml

详细信息
kubectl -n openapp describe pod [podName]

进入执行
kubectl -n openapp exec -it [podName] – sh

获取日志
kubectl -n openapp logs –tail=200 -f [podName]

拷贝文件
kubectl cp ns/svc-app-fb47d75bb-xz8pd:var/d/application.yml application.yaml
kubectl cp application.yaml ns/svc-app-fb47d75bb-xz8pd:var/d/application.yml