Kubernetes安装Prometheus+Grafana 克隆项目git clone https://hub.fastgit.org/LBters/k8s-prometheus-grafana.git安装node-exporterkubectl apply -f node-exporter.yaml安装prometheus组件kubectl apply -f k8s-prometheus-grafana/prometheus/rbac-setup.yaml kubectl apply -f k8s-prometheus-grafana/prometheus/configmap.yaml kubectl apply -f k8s-prometheus-grafana/prometheus/prometheus.deploy.yml kubectl apply -f k8s-prometheus-grafana/prometheus/prometheus.svc.yml安装 grafana 组件kubectl apply -f k8s-prometheus-grafana/grafana/grafana-deploy.yaml kubectl apply -f k8s-prometheus-grafana/grafana/grafana-svc.yaml kubectl apply -f k8s-prometheus-grafana/grafana/grafana-ing.yaml查看组件服务的映射端口kubectl get svc -n kube-system访问grafana并添加prometheus数据源IP+prometheus端口选择Dashboards import导入模板输入url模板代码315 确定导入可以看到prometheus监视列表已经出来了

Kubernetes 部署 Dashboard 部署直接使用github官方仓库安装`kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.2.0/aio/deploy/recommended.yaml`配置修改为通过 NodePort 访问kubectl -n kubernetes-dashboard edit service kubernetes-dashboard在 ports下面添加nodePort: 32576，将 clusterIp改为NodePort如下spec: clusterIP: 192.168.244.139 externalTrafficPolicy: Cluster ports: - nodePort: 32576 port: 443 protocol: TCP targetPort: 8443 selector: k8s-app: kubernetes-dashboard sessionAffinity: None type: NodePort 此时可以通过节点 IP 和端口https://ip:32576/ 访问到 Dashboard(Chrome 可能会提示证书错误)解决方法：创建chrome桌面快捷方式，然后到桌面：右键chrome–>属性–>在目标后面添加如下：--disable-infobars --ignore-certificate-errors示例："C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --disable-infobars --ignore-certificate-errors创建 ServiceAccountvim admin-role.yaml输入以下内容kind: ClusterRoleBinding apiVersion: rbac.authorization.k8s.io/v1beta1 metadata: name: admin annotations: rbac.authorization.kubernetes.io/autoupdate: "true" roleRef: kind: ClusterRole name: cluster-admin apiGroup: rbac.authorization.k8s.io subjects: - kind: ServiceAccount name: admin namespace: kubernetes-dashboard --- apiVersion: v1 kind: ServiceAccount metadata: name: admin namespace: kubernetes-dashboard labels: kubernetes.io/cluster-service: "true" addonmanager.kubernetes.io/mode: Reconcile保存后再执行kubectl apply -f admin-role.yaml获取 Tokenkubectl -n kubernetes-dashboard get secret|grep admin-token根据输出类似于admin-token-jx84x 再执行kubectl -n kubernetes-dashboard describe secret admin-token-jx84x会输出token信息，在浏览器Dashboard使用token登录即可

Kubernetes通过kubeadm安装方法 前期准备工作所有机器安装必要软件包，并进行时间同步，防止后续出现问题yum -y install wget curl ntpdate yum-utils device-mapper-persistent-data lvm2 ntpdate ntp1.aliyun.com clock -w一些系统调整（所有机器执行）systemctl disable firewalld systemctl stop firewalld setenforce 0 sed -i 's/SELINUX=permissive/SELINUX=disabled/' /etc/sysconfig/selinux sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config swapoff -a sed -i 's/.*swap.*/#&/' /etc/fstab cat <<EOF > /etc/sysctl.d/k8s.conf net.bridge.bridge-nf-call-ip6tables = 1 net.bridge.bridge-nf-call-iptables = 1 EOF sysctl --system进行docker的安装（所有机器执行）# 配置阿里云的docker源 yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo # 指定安装这个版本的docker-ce yum install -y docker-ce-18.09.9-3.el7 # 启动docker systemctl enable docker && systemctl start docker安装kubeadm kubelet kubectl（所有机器执行）# 执行配置k8s阿里云源 cat <<EOF > /etc/yum.repos.d/kubernetes.repo [kubernetes] name=Kubernetes baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/ enabled=1 gpgcheck=1 repo_gpgcheck=1 gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg EOF # 安装kubeadm、kubectl、kubelet yum install -y kubectl-1.16.0-0 kubeadm-1.16.0-0 kubelet-1.16.0-0 # 启动kubelet服务 systemctl enable kubelet && systemctl start kubelet初始化master端配置，在master机器上# master 本机IP为192.168.244.139 pod网络IP段为10.244.0.0/16，并指定安装版本v1.16.0 kubeadm init --image-repository registry.aliyuncs.com/google_containers --kubernetes-version v1.16.0 --apiserver-advertise-address 192.168.244.139 --pod-network-cidr=10.244.0.0/16 --token-ttl 0初始化完成后，会提示执行mkdir -p $HOME/.kube sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config sudo chown $(id -u):$(id -g) $HOME/.kube/config并记录最后输出的一段代码，用于node节点加入master类似于`kubeadm join 192.168.244.139:6443 --token aew90y.q89ywcwjgjcm8b2t \ --discovery-token-ca-cert-hash sha256:181eb0e51d939200c768c43e230e7e4603c8b2c2c3a5b299de4a6df6b7d6226a`根据以上输出的join代码在node节点端执行完成后在master端 可进行查看所有节点状态`kubectl get nodes`此时会显示notready，需要在服务器执行wget https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml kubectl apply -f kube-flannel.yml echo "export KUBECONFIG=/etc/kubernetes/admin.conf" >> ~/.bash_profile source ~/.bash_profile # 以下替换node节点IP scp /etc/kubernetes/admin.conf root@node节点IP:/etc/kubernetes/admin.conf # 然后现在再次查看，已经变为ready了 kubectl get nodes到这里Kube已经安装完成了，接下里可以正常安装一些组件或者分发docker镜像了