Kubernetes技术栈
  • 序章
  • Kubernetes 架构快速了解
  • 十分钟带你了解什么是kubernetes
  • 如何快速了解Kubernetes架构
  • 企业级镜像私有仓库Harbor
  • 二进制分布式安装Kubernetes1.13.10
    • 准备工作
  • 使用Kubeadm安装Kubernetes1.13.10
    • 准备工作
    • 基础环境设置
    • 安装高可用
    • 安装负载均衡
    • 安装Docker (Master/Node)
    • yum源安装kubeadm
    • Initialize第一个kubernetes master
    • 配置flannel组件
    • 加入集群
    • 配置dashboard
    • Master参与负载工作
    • 集群删除Node
  • Kubernetes 1.15.2 部署 Traefik2.0
  • Kubernetes1.15.2 监控(1)安装 Prometheus 2.11.1
  • Kubernetes 1.15.2监控(2)Monitor集群组件和PODS
  • kubernetes日志管理最佳实践EFK
  • Kubernetes1.15.2使用Ceph集群部署
  • Kubernetes1.15.2 中安装 jenkins 2.0
  • Kubernetes1.15.2使用jenkins 动态 slave
  • 什么是nginx-ingress控制器
  • Kubernetes Permission Controler概览
  • Permission Controler-通过Instance理解Kubernetes的Auth
  • Permission Controler-通过Instance理解Kubernetes的授权
  • Permission Controler-探索Kubernetes的Service Accounts
  • Kubernetes与Istio微服务架构
  • Kubernetes必须知道的HELM
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  1. 使用Kubeadm安装Kubernetes1.13.10

配置flannel组件

创建flannel配置文件

vim kube-flannel.yaml
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: flannel
rules:
  - apiGroups:
      - ""
    resources:
      - pods
    verbs:
      - get
  - apiGroups:
      - ""
    resources:
      - nodes
    verbs:
      - list
      - watch
  - apiGroups:
      - ""
    resources:
      - nodes/status
    verbs:
      - patch
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: flannel
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: flannel
subjects:
- kind: ServiceAccount
  name: flannel
  namespace: kube-system
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: flannel
  namespace: kube-system
---
kind: ConfigMap
apiVersion: v1
metadata:
  name: kube-flannel-cfg
  namespace: kube-system
  labels:
    tier: node
    app: flannel
data:
  cni-conf.json: |
    {
      "name": "cbr0",
      "plugins": [
        {
          "type": "flannel",
          "delegate": {
            "hairpinMode": true,
            "isDefaultGateway": true
          }
        },
        {
          "type": "portmap",
          "capabilities": {
            "portMappings": true
          }
        }
      ]
    }
  net-conf.json: |
    {
      "Network": "10.20.0.0/16",
      "Backend": {
        "Type": "vxlan"
      }
    }
---
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
  name: kube-flannel-ds-amd64
  namespace: kube-system
  labels:
    tier: node
    app: flannel
spec:
  template:
    metadata:
      labels:
        tier: node
        app: flannel
    spec:
      hostNetwork: true
      nodeSelector:
        beta.kubernetes.io/arch: amd64
      tolerations:
      - operator: Exists
        effect: NoSchedule
      serviceAccountName: flannel
      initContainers:
      - name: install-cni
        image: registry.cn-shenzhen.aliyuncs.com/cp_m/flannel:v0.11.0-amd64
        command:
        - cp
        args:
        - -f
        - /etc/kube-flannel/cni-conf.json
        - /etc/cni/net.d/10-flannel.conflist
        volumeMounts:
        - name: cni
          mountPath: /etc/cni/net.d
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      containers:
      - name: kube-flannel
        image: registry.cn-shenzhen.aliyuncs.com/cp_m/flannel:v0.11.0-amd64
        command:
        - /opt/bin/flanneld
        args:
        - --ip-masq
        - --kube-subnet-mgr
        resources:
          requests:
            cpu: "100m"
            memory: "50Mi"
          limits:
            cpu: "100m"
            memory: "50Mi"
        securityContext:
          privileged: true
        env:
        - name: POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: POD_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        volumeMounts:
        - name: run
          mountPath: /run
        - name: flannel-cfg
          mountPath: /etc/kube-flannel/
      volumes:
        - name: run
          hostPath:
            path: /run
        - name: cni
          hostPath:
            path: /etc/cni/net.d
        - name: flannel-cfg
          configMap:
            name: kube-flannel-cfg

Network”: “10.20.0.0/16”与kubeadm-config.yaml配置文件中podSubnet: 10.20.0.0/16必须一致。

创建flanner的role和pod

kubectl apply -f kube-flannel.yaml

创建需要一定时间,等几分钟后查看.

kubectl get pods --namespace=kube-system
NAME                                  READY   STATUS    RESTARTS   AGE
coredns-5774ff9fd9-wfr96              1/1     Running   0          2d1h
kubernetes-dashboard-f6bd9778-vzj5p   1/1     Running   0          2d2h
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Last updated 5 years ago

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