kongkong的专栏

projected.yamlapiVersion: v1kind: Podmetadata: name: test-projected-volumespec: containers: - name: test-projected-volume image: busybox:1.28 args: - sleep - "86400" volumeMounts: - name: all-in-one mountPath: "/proj

deployment-1-14-2.yamlversion: 1.14.2apiVersion: apps/v1kind: Deploymentmetadata: name: nginx-deploymentspec: selector: matchLabels: app: nginx replicas: 2 # tells deployment to run 2 pods matching the template template: metadata

错误信息serviceaccounts is forbidden: User “system:serviceaccount:kubernetes-dashboard:kubernetes-dashboard” cannot list resource “serviceaccounts” in API group “” in the namespace “default”费了老大的功夫才明白是serviceaccount的问题,k8sdashboard出厂的serviceaccount权限太低，需要配置

查看kubectl get namespaceskubectl get ns创建kubectl create namespace dev删除kubectl delete namespaces dev

myservercm.yamlapiVersion: v1data: username: administrator password: "123456" server: | url: 192.168.3.100 port: "10000"kind: ConfigMapmetadata: creationTimestamp: null name: myservercm # configmap name生成configmapkubectl crea

guestcm.yamlapiVersion: v1data: username: guest password: "123456"kind: ConfigMapmetadata: creationTimestamp: null name: guestcm # configmap name生成configmapkubectl create -f guestcm.yamlkubectl get configmapkubectl get configmap guestcm

guestcm.yaml(执行前)apiVersion: v1data: username: guest password: 123456kind: ConfigMapmetadata: creationTimestamp: null name: guestcm命令kubectl create -f guestcm.yaml错误信息Error from server (BadRequest): error when creating “guestcm.yaml”: Co

命令创建kubectl createkubectl create configmap my-config --from-literal=key1=config1 --from-literal=key2=config2configmap/my-config created查看方式1kubectl get configmap my-config -o yaml查看方式2 kubectl describe configmap my-config当前存在的configmapkubectl

基于上篇k8s使用nginx-deployment.yamlnginx-svc.yamlapiVersion: v1kind: Servicemetadata: name: nginx-svc # service namespec: type: NodePort # 配置NodePort，外部流量可访问k8s中的服务 ports: - port: 80 # 服务访问端口，集群内部访问的端口 # targetPort

nginx-deployment.yamlapiVersion: apps/v1kind: Deploymentmetadata: name: nginx-deploymentspec: replicas: 3 selector: matchLabels: app: nginx-deployment template: metadata: labels: app: nginx-deployment spec:

镜像官网镜像官网: https://hub.docker.com/查看镜像docker search tomcat指定版本# 创建deploymentkubectl create deployment my-tomcat --image=tomcat:8.0.52创建servciekubectl expose deployment my-tomcat --name=tomcat --port=8080 --type=NodePort访问每台都可以通过30308访问200

部署nginxkubectl create deployment nginx --image=nginx查看podkubectl get pod -o wide查看svckubectl get svc -o wide查看pod和svckubectl get pod,svc -o wide查看podkubectl get pods -n kube-systemdeployments# 查看deploymentskubectl get deployments# 删除depl

忘记joinkubeadm token create --print-join-command加入kubeadm join 192.168.3.168:6443 --token wm2waa.k5wkmh65bbmh8xm0 --discovery-token-ca-cert-hash sha256:1234e47f568a79c33eac7b7b947db460de0f94f5cc1cd941b7b73f8d208a456e查看token列表kubeadm token list查看日志

error validating data: [ValidationError(Deployment): unknown field "\u00a0\u00a0name" in io.k8s.api.apps.v1.Deployment, ValidationError(Deployment): unknown field "\u00a0\u00a0replicas" in io.k8s.api.apps.v1.Deployment, ValidationError(Deployment): unknown

mapping values not allowed here解决方法语法都对情况下，一般来说是 冒号(:)后面没有空格 冒号(:)后面的空格有问题,重新敲下空格

非虚拟机环境有可能证书过期了，有可能时间有问题virtualbox环境我在虚拟机上搭建了全新的环境，也报这个错，各种方式都试过了。没解决。搞了半天原来是虚拟机的时间有问题 ! ! !解决方法每台机器执行下面命令ntpdate time.windows.com...

grafana的datasource界面从这里看是没有influxdb的，点击Add data source配置influxdbType选择InfluxDBURL添加具体的ip和port，不要填写localhost配置Database添加成功

在node节点执行kubectl get pods 会报：The connection to the server localhost:8080 was refused - did you specify the right host or port?# 在从节点执行 复制admin.conf 到 从节点scp root@c208:/etc/kubernetes/admin.c...

kubeadm init --config=kubeadm.yml --upload-certs | tee kubeadm-init.log# 生成# 备份好 kubeadm init 输出中的 kubeadm join 命令# 因为您会需要这个命令来给集群添加节点kubeadm join 192.168.100.237:6443 --token abcdef.0...

# 安装证书生成工具wget https://pkg.cfssl.org/R1.2/cfssl_linux-amd64 wget https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64 wget https://pkg.cfssl.org/R1.2/cfssl-certinfo_linux-amd64 chmod +x cfssl*...

systemctl disable firewalldsystemctl stop firewalld#installyum install -y etcd kubernetes#startsystemctl start etcdsystemctl start dockersystemctl start kube-apiserversystemctl start kub...

环境： Centos 7 Docker版本：docker-ce.x86_64 18.06.1.ce-3.el7运行命令：yum install -y etcd kubernetes然后报错：Error: docker-ce-cli conflicts with 2:docker-1.13.1-94.gitb2f74b2.el7.centos.x86_64Error: ...

1.vim /etc/kubernetes/apiserver2.找到"KUBE_ADMISSION_CONTROL="--admission_control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota"去掉ServiceAccount，保...

不能通过curl 192.168.3.200:30080 、curl 192.168.3.200:30090访问解决方式:iptables -P FORWARD ACCEPT

1.open /etc/docker/certs.d/registry.access.redhat.com/redhat-ca.crt: no such file or directory 解决方案1. wgethttp://mirror.centos.org/centos/7/os/x86_64/Packages/python-rhsm-certificates-1.19....

systemctl restart kube-apiserverkubectl delete pod ${pod.name}kubectl delete {name}kubectl delete services ${service.name}kubectl get deploymentskubectl get podskubectl get rckubectl...

  安装kubernetes的时候，需要安装kubelet, kubeadm等包，但k8s官网给的yum源是packages.cloud.google.com，国内访问不了，此时我们可以使用阿里云的yum仓库镜像。 cat <<EOF > /etc/yum.repos.d/kubernetes.repo[kubernetes]name=Kubernetes...