外部ETCD集群(不启用证书)对接Kubeadm部署K8S集群

外部ETCD集群(不启用证书)对接Kubeadm部署K8S集群

一 主机规划

1.规划

主机名IP地址
Master-01192.168.91.10
Master-02192.168.91.11
Master-03192.168.91.12
Nod-01192.168.91.13
Nod-02192.168.91.14
Nod-03192.168.91.15

2.HA架构

image.png

二 主机优化(ALL)

# 所有节点
$ yum install net-tools vim wget lrzsz git telnet –y 
$ systemctl stop firewalld 
$ systemctl disable firewalld 
$ setenforce 0
$ sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config 
# 设置时区
$ \cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime -rf 
# 关闭交换分区
$ swapoff -a 
$ sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab 
# 设置时间同步
$ yum install -y ntpdate 
$ ntpdate -u ntp.api.bz 
$ echo "*/5 * * * * ntpdate time7.aliyun.com >/dev/null 2>&1" >> /etc/crontab 
$ systemctl restart crond
$ systemctl enable crond
# 所有节点
# 设置主机名
$ cat > /etc/hosts <<EOF
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4 
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6 
192.168.91.10  master-01
192.168.91.11  master-02
192.168.91.12  master-03
192.168.91.13  node-01
192.168.91.14  node-02
192.168.91.15  node-03
EOF

# 内和优化
# 开启内核 ipv4 转发需要加载 br_netfilter 模块
$ modprobe br_netfilter
$ cat >/etc/sysctl.d/kubernetes.conf <<EOF
net.bridge.bridge-nf-call-iptables=1
net.bridge.bridge-nf-call-ip6tables=1
net.ipv4.ip_forward=1
vm.swappiness=0
fs.file-max=52706963
fs.nr_open=52706963
EOF

$ sysctl -p /etc/sysctl.d/kubernetes.conf

# 解释
bridge-nf 使得 netfilter 可以对 Linux 网桥上的 IPv4/ARP/IPv6 包过滤。比如,设置net.bridge.bridge-nf-call-iptables=1后,二层的网桥在转发包时也会被 iptables的 FORWARD 规则所过滤。常用的选项包括:
net.bridge.bridge-nf-call-arptables:是否在 arptables 的 FORWARD 中过滤网桥的 ARP 包
net.bridge.bridge-nf-call-ip6tables:是否在 ip6tables 链中过滤 IPv6 包
net.bridge.bridge-nf-call-iptables:是否在 iptables 链中过滤 IPv4 包
net.bridge.bridge-nf-filter-vlan-tagged:是否在 iptables/arptables 中过滤打了 vlan 标签的包。
# 支持命令补全
$ yum install bash-completion -y
$ source /usr/share/bash-completion/bash_completion
$ source <(kubectl completion bash)
$ kubectl completion bash >/etc/bash_completion.d/kubectl
# 从任意Master节点分发配置到其他所有的节点(包括其他的Master与Node),当前以Master-18为分发机器。
$ yum install -y expect
$ ssh-keygen -t rsa -P "" -f /root/.ssh/id_rsa 
$ export mypass=123456
$ name=(master-01 master-02 master-03 node-01 node-02 node-03)
$ for i in ${name[@]};do 
expect -c " 
spawn ssh-copy-id -i /root/.ssh/id_rsa.pub root@$i
  expect {
    \"*yes/no*\" {send \"yes\r\"; exp_continue}
	\"*password*\" {send \"$mypass\r\"; exp_continue}
	\"*Password*\" {send \"$mypass\r\";}
	}"
done; 

三 安装docker指定版本(ALL)

$ yum install -y yum-utils device-mapper-persistent-data lvm2

$ yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

$ yum install -y --setopt=obsoletes=0 \
   docker-ce-17.03.2.ce-1.el7.centos.x86_64 \
   docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch

$ vim /usr/lib/systemd/system/docker.service
#注释原有的ExecStart=/usr/bin/dockerd,并添加如下两行
ExecStart=/usr/bin/dockerd -H unix:///var/run/docker.sock -H 0.0.0.0:2375 --graph /data/docker

$ docker -v
$ systemctl start docker
$ systemctl enable docker
# 配置docker镜像加速
$ mkdir /etc/docker
$ cat > /etc/docker/daemon.json <<EOF
    {
      "registry-mirrors": ["https://ig2l319y.mirror.aliyuncs.com"],
      "exec-opts": ["native.cgroupdriver=systemd"]
    }
EOF

四 安装ipvs(ALL)

$ cat > /etc/sysconfig/modules/ipvs.modules <<EOF
#!/bin/bash
modprobe -- ip_vs
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- ip_vs_sh
modprobe -- nf_conntrack_ipv4
EOF
$ chmod 755 /etc/sysconfig/modules/ipvs.modules && bash /etc/sysconfig/modules/ipvs.modules && lsmod | grep -e ip_vs -e nf_conntrack_ipv4

$ yum install ipset ipvsadm -y

五 部署kubeadm和kubelet(ALL)

注意!所有机器都需要操作!!!
注意!所有机器都需要操作!!!
注意!所有机器都需要操作!!!

# 设置k8s国内yum仓库
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=http://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=http://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg
        http://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

# 安装 kubeadm、kubelet、kubectl
$ yum install -y kubeadm-1.13.5 kubelet-1.13.5 kubectl-1.13.5 kubernetes-cni-0.7.5
$ kubeadm version
kubeadm version: &version.Info{Major:"1", Minor:"13", GitVersion:"v1.13.5", GitCommit:"2166946f41b36dea2c4626f90a77706f426cdea2", GitTreeState:"clean", BuildDate:"2019-03-25T15:24:33Z", GoVersion:"go1.11.5", Compiler:"gc", Platform:"linux/amd64"}

# 将 kubelet 设置成开机启动
$ systemctl start kubelet  # 暂时不启动
$ systemctl enable --now kubelet

六 部署HA(Master)

1.安装nginx

# 设置nginx官方yun源
$ cat <<EOF > /etc/yum.repos.d/nginx.repo 
[nginx-stable]
name=nginx stable repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=1
enabled=1
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true

[nginx-mainline]
name=nginx mainline repo
baseurl=http://nginx.org/packages/mainline/centos/$releasever/$basearch/
gpgcheck=1
enabled=0
gpgkey=https://nginx.org/keys/nginx_signing.key
module_hotfixes=true
EOF

# 安装nginx基础依赖
$ yum -y install gcc pcre pcre-devel zlib zlib-devel openssl openssl-devel
# 安装nginx
$ yum -y install nginx
# 配置nginx四层代理
$ cd /etc/nginx & mkdir -p /etc/nginx/stream
$ cat <<EOF > /etc/nginx/stream/kube-apiserver.conf
stream {
    upstream kube-apiserver {
        server 192.168.91.10:6443     max_fails=3 fail_timeout=30s;
        server 192.168.91.11:6443     max_fails=3 fail_timeout=30s;
        server 192.168.91.12:6443     max_fails=3 fail_timeout=30s;
    }
    server {
        listen 7443;
        proxy_connect_timeout 2s;
        proxy_timeout 900s;
        proxy_pass kube-apiserver;
    }
}
EOF
$ echo "include /etc/nginx/stream/*.conf;" >> /etc/nginx/nginx.conf

$ nginx -t
$ systemctl start nginx & systemctl enable nginx

2.安装keepalived

$ yum install keepalived -y
$ cat <<EOF> /etc/keepalived/check_port.sh
#!/bin/bash
CHK_PORT=$1
if [ -n "$CHK_PORT" ];then
        PORT_PROCESS=`ss -lnt|grep $CHK_PORT|wc -l`
        if [ $PORT_PROCESS -eq 0 ];then
                echo "Port $CHK_PORT Is Not Used,End."
                exit 1
        fi
else
        echo "Check Port Cant Be Empty!"
fi
EOF
$ chmod +x /etc/keepalived/check_port.sh
# 主节点配置
$ vim /etc/keepalived/keepalived.conf

! Configuration File for keepalived

global_defs {
   router_id 192.168.91.10

}

vrrp_script chk_nginx {
    script "/etc/keepalived/check_port.sh 7443"
    interval 2
    weight -20
}

vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 251
    priority 100
    advert_int 1
    mcast_src_ip 192.168.91.10
    nopreempt            

    authentication {
        auth_type PASS
        auth_pass 11111111
    }
    track_script {
         chk_nginx
    }
    virtual_ipaddress {
        192.168.91.254
    }
}

# 备节点配置
vim /etc/keepalived/keepalived.conf

! Configuration File for keepalived
global_defs {
	router_id 192.168.91.11/12
}
vrrp_script chk_nginx {
	script "/etc/keepalived/check_port.sh 7443"
	interval 2
	weight -20
}
vrrp_instance VI_1 {
	state BACKUP
	interface eth0
	virtual_router_id 251
	mcast_src_ip 192.168.91.11/12
	priority 90
	advert_int 1
	authentication {
		auth_type PASS
		auth_pass 11111111
	}
	track_script {
		chk_nginx
	}
	virtual_ipaddress {
		192.168.91.254
	}
}

# 启动主备节点keepalived
$ systemctl start keepalived
$ systemctl enable keepalived
$ systemctl restart keepalived

# 所有节点都需要ping一下VIP看下是否通,如果不通,多重启几次keepalived。

七 部署ETCD(Master)

# 三台master上安装etcd
$ useradd -s /sbin/nologin -M etcd
$ mkdir -p /data/etcd
$ chown -R etcd.etcd /data/etcd
$ tar -zxvf  etcd-v3.4.14-linux-amd64.tar.gz
$ cd etcd-v3.4.14-linux-amd64/
$ chmod +x etcd etcdctl
$ cp etcd etcdctl /usr/bin/

# 创建etcd启动服务
$ vi /usr/lib/systemd/system/etcd.service
[Unit]
Description=Etcd Server
After=network.target
After=network-online.target
Wants=network-online.target 

[Service]
Type=notify
WorkingDirectory=/data/etcd/
EnvironmentFile=-/etc/etcd/etcd.conf
User=etcd
ExecStart=/bin/bash -c "GOMAXPROCS=$(nproc) /usr/bin/etcd"
Restart=on-failure
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target

1.配置etcd1节点

$ mkdir -p /etc/etcd
$ cat >/etc/etcd/etcd.conf<<EOFL
#[Member]
ETCD_NAME="master-01"
ETCD_DATA_DIR="/data/etcd/etcd1.etcd"
ETCD_LISTEN_PEER_URLS="http://0.0.0.0:2380"
ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379" 

#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.91.10:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.91.10:2379" 
ETCD_INITIAL_CLUSTER="master-01=http://192.168.91.10:2380,master-02=http://192.168.91.11:2380,master-03=http://192.168.91.12:2380"
ETCD_INITIAL_CLUSTER_TOKEN="AIPlt"
ETCD_INITIAL_CLUSTER_STATE="new"
EOFL

2.配置etcd2节点

$ mkdir -p /etc/etcd
$ cat >/etc/etcd/etcd.conf<<EOFL
#[Member]
ETCD_NAME="master-02"
ETCD_DATA_DIR="/data/etcd/etcd2.etcd"
ETCD_LISTEN_PEER_URLS="http://0.0.0.0:2380"
ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379" 

#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.91.11:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.91.11:2379" 
ETCD_INITIAL_CLUSTER="master-01=http://192.168.91.10:2380,master-02=http://192.168.91.11:2380,master-03=http://192.168.91.12:2380"
ETCD_INITIAL_CLUSTER_TOKEN="AIPlt"
ETCD_INITIAL_CLUSTER_STATE="new"
EOFL

3.配置etcd3节点

$ mkdir -p /etc/etcd
$ cat >/etc/etcd/etcd.conf<<EOFL
#[Member]
ETCD_NAME="master-03"
ETCD_DATA_DIR="/data/etcd/etcd3.etcd"
ETCD_LISTEN_PEER_URLS="http://0.0.0.0:2380"
ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379" 

#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://192.168.91.12:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://192.168.91.12:2379" 
ETCD_INITIAL_CLUSTER="master-01=http://192.168.91.10:2380,master-02=http://192.168.91.11:2380,master-03=http://192.168.91.12:2380"
ETCD_INITIAL_CLUSTER_TOKEN="AIPlt"
ETCD_INITIAL_CLUSTER_STATE="new"
EOFL

4.启动etcd

$ systemctl daemon-reload
$ systemctl enable etcd
$ systemctl start etcd
$ etcdctl cluster-health

八 初始化Master

1.初始化Master-01

# 获取初始化配置文件
$ kubeadm config print init-defaults > k8s_init_config.yaml
$ vim k8s_init_config.yaml
apiVersion: kubeadm.k8s.io/v1beta1
bootstrapTokens:
- groups:
  - system:bootstrappers:kubeadm:default-node-token
  token: abcdef.0123456789abcdef
  ttl: 24h0m0s
  usages:
  - signing
  - authentication
kind: InitConfiguration
localAPIEndpoint:
  advertiseAddress: 192.168.91.10
  bindPort: 6443
nodeRegistration:
  criSocket: /var/run/dockershim.sock
  name: master-01
  taints:
  - effect: NoSchedule
    key: node-role.kubernetes.io/master
---
apiServer:
  timeoutForControlPlane: 4m0s
apiVersion: kubeadm.k8s.io/v1beta1
certificatesDir: /etc/kubernetes/pki
clusterName: kubernetes
controlPlaneEndpoint: "192.168.91.254:7443"
controllerManager: {}
dns:
  type: CoreDNS
etcd:
  external:
    endpoints:
      - http://192.168.91.10:2379
      - http://192.168.91.11:2379
      - http://192.168.91.12:2379
imageRepository: registry.aliyuncs.com/google_containers
kind: ClusterConfiguration
kubernetesVersion: v1.13.5
networking:
  dnsDomain: cluster.local
  podSubnet: "10.244.0.0/16"
  serviceSubnet: 10.96.0.0/12
scheduler: {}
---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
mode: ipvs
ipvs:
  scheduler: nq
# 初始化master-01
$ kubeadm init --config k8s_init_config.yaml
......
Your Kubernetes master has initialized successfully!

To start using your cluster, you need to run the following as a regular user:

  mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config

You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
  https://kubernetes.io/docs/concepts/cluster-administration/addons/

You can now join any number of machines by running the following on each node
as root:

  kubeadm join 192.168.91.254:7443 --token abcdef.0123456789abcdef --discovery-token-ca-cert-hash sha256:5b472a5f83295ab9c241cbd5872a9fdcd7c38bd581ee27c400669ff54c209909
# 拷贝kubeconfig配置文件
$ mkdir -p $HOME/.kube
$ sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
$ sudo chown $(id -u):$(id -g) $HOME/.kube/config
# 部署calico
$ vim calico.yaml
---
# Source: calico/templates/calico-config.yaml
# This ConfigMap is used to configure a self-hosted Calico installation.
kind: ConfigMap
apiVersion: v1
metadata:
  name: calico-config
  namespace: kube-system
data:
  # Typha is disabled.
  typha_service_name: "none"
  # Configure the backend to use.
  calico_backend: "bird"

  # Configure the MTU to use
  veth_mtu: "1440"

  # The CNI network configuration to install on each node.  The special
  # values in this config will be automatically populated.
  cni_network_config: |-
    {
      "name": "k8s-pod-network",
      "cniVersion": "0.3.1",
      "plugins": [
        {
          "type": "calico",
          "log_level": "info",
          "datastore_type": "kubernetes",
          "nodename": "__KUBERNETES_NODE_NAME__",
          "mtu": __CNI_MTU__,
          "ipam": {
              "type": "calico-ipam"
          },
          "policy": {
              "type": "k8s"
          },
          "kubernetes": {
              "kubeconfig": "__KUBECONFIG_FILEPATH__"
          }
        },
        {
          "type": "portmap",
          "snat": true,
          "capabilities": {"portMappings": true}
        }
      ]
    }

---
# Source: calico/templates/kdd-crds.yaml
apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: felixconfigurations.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: FelixConfiguration
    plural: felixconfigurations
    singular: felixconfiguration
---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: ipamblocks.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: IPAMBlock
    plural: ipamblocks
    singular: ipamblock

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: blockaffinities.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: BlockAffinity
    plural: blockaffinities
    singular: blockaffinity

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: ipamhandles.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: IPAMHandle
    plural: ipamhandles
    singular: ipamhandle

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: ipamconfigs.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: IPAMConfig
    plural: ipamconfigs
    singular: ipamconfig

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: bgppeers.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: BGPPeer
    plural: bgppeers
    singular: bgppeer

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: bgpconfigurations.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: BGPConfiguration
    plural: bgpconfigurations
    singular: bgpconfiguration

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: ippools.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: IPPool
    plural: ippools
    singular: ippool

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: hostendpoints.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: HostEndpoint
    plural: hostendpoints
    singular: hostendpoint

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: clusterinformations.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: ClusterInformation
    plural: clusterinformations
    singular: clusterinformation

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: globalnetworkpolicies.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: GlobalNetworkPolicy
    plural: globalnetworkpolicies
    singular: globalnetworkpolicy

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: globalnetworksets.crd.projectcalico.org
spec:
  scope: Cluster
  group: crd.projectcalico.org
  version: v1
  names:
    kind: GlobalNetworkSet
    plural: globalnetworksets
    singular: globalnetworkset

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: networkpolicies.crd.projectcalico.org
spec:
  scope: Namespaced
  group: crd.projectcalico.org
  version: v1
  names:
    kind: NetworkPolicy
    plural: networkpolicies
    singular: networkpolicy

---

apiVersion: apiextensions.k8s.io/v1beta1
kind: CustomResourceDefinition
metadata:
  name: networksets.crd.projectcalico.org
spec:
  scope: Namespaced
  group: crd.projectcalico.org
  version: v1
  names:
    kind: NetworkSet
    plural: networksets
    singular: networkset
---
# Source: calico/templates/rbac.yaml

# Include a clusterrole for the kube-controllers component,
# and bind it to the calico-kube-controllers serviceaccount.
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: calico-kube-controllers
rules:
  # Nodes are watched to monitor for deletions.
  - apiGroups: [""]
    resources:
      - nodes
    verbs:
      - watch
      - list
      - get
  # Pods are queried to check for existence.
  - apiGroups: [""]
    resources:
      - pods
    verbs:
      - get
  # IPAM resources are manipulated when nodes are deleted.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - ippools
    verbs:
      - list
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - blockaffinities
      - ipamblocks
      - ipamhandles
    verbs:
      - get
      - list
      - create
      - update
      - delete
  # Needs access to update clusterinformations.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - clusterinformations
    verbs:
      - get
      - create
      - update
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: calico-kube-controllers
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: calico-kube-controllers
subjects:
- kind: ServiceAccount
  name: calico-kube-controllers
  namespace: kube-system
---
# Include a clusterrole for the calico-node DaemonSet,
# and bind it to the calico-node serviceaccount.
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: calico-node
rules:
  # The CNI plugin needs to get pods, nodes, and namespaces.
  - apiGroups: [""]
    resources:
      - pods
      - nodes
      - namespaces
    verbs:
      - get
  - apiGroups: [""]
    resources:
      - endpoints
      - services
    verbs:
      # Used to discover service IPs for advertisement.
      - watch
      - list
      # Used to discover Typhas.
      - get
  - apiGroups: [""]
    resources:
      - nodes/status
    verbs:
      # Needed for clearing NodeNetworkUnavailable flag.
      - patch
      # Calico stores some configuration information in node annotations.
      - update
  # Watch for changes to Kubernetes NetworkPolicies.
  - apiGroups: ["networking.k8s.io"]
    resources:
      - networkpolicies
    verbs:
      - watch
      - list
  # Used by Calico for policy information.
  - apiGroups: [""]
    resources:
      - pods
      - namespaces
      - serviceaccounts
    verbs:
      - list
      - watch
  # The CNI plugin patches pods/status.
  - apiGroups: [""]
    resources:
      - pods/status
    verbs:
      - patch
  # Calico monitors various CRDs for config.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - globalfelixconfigs
      - felixconfigurations
      - bgppeers
      - globalbgpconfigs
      - bgpconfigurations
      - ippools
      - ipamblocks
      - globalnetworkpolicies
      - globalnetworksets
      - networkpolicies
      - networksets
      - clusterinformations
      - hostendpoints
    verbs:
      - get
      - list
      - watch
  # Calico must create and update some CRDs on startup.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - ippools
      - felixconfigurations
      - clusterinformations
    verbs:
      - create
      - update
  # Calico stores some configuration information on the node.
  - apiGroups: [""]
    resources:
      - nodes
    verbs:
      - get
      - list
      - watch
  # These permissions are only requried for upgrade from v2.6, and can
  # be removed after upgrade or on fresh installations.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - bgpconfigurations
      - bgppeers
    verbs:
      - create
      - update
  # These permissions are required for Calico CNI to perform IPAM allocations.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - blockaffinities
      - ipamblocks
      - ipamhandles
    verbs:
      - get
      - list
      - create
      - update
      - delete
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - ipamconfigs
    verbs:
      - get
  # Block affinities must also be watchable by confd for route aggregation.
  - apiGroups: ["crd.projectcalico.org"]
    resources:
      - blockaffinities
    verbs:
      - watch
  # The Calico IPAM migration needs to get daemonsets. These permissions can be
  # removed if not upgrading from an installation using host-local IPAM.
  - apiGroups: ["apps"]
    resources:
      - daemonsets
    verbs:
      - get
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: calico-node
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: calico-node
subjects:
- kind: ServiceAccount
  name: calico-node
  namespace: kube-system

---
# Source: calico/templates/calico-node.yaml
# This manifest installs the calico-node container, as well
# as the CNI plugins and network config on
# each master and worker node in a Kubernetes cluster.
kind: DaemonSet
apiVersion: apps/v1
metadata:
  name: calico-node
  namespace: kube-system
  labels:
    k8s-app: calico-node
spec:
  selector:
    matchLabels:
      k8s-app: calico-node
  updateStrategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 1
  template:
    metadata:
      labels:
        k8s-app: calico-node
      annotations:
        # This, along with the CriticalAddonsOnly toleration below,
        # marks the pod as a critical add-on, ensuring it gets
        # priority scheduling and that its resources are reserved
        # if it ever gets evicted.
        scheduler.alpha.kubernetes.io/critical-pod: ''
    spec:
      nodeSelector:
        beta.kubernetes.io/os: linux
      hostNetwork: true
      tolerations:
        # Make sure calico-node gets scheduled on all nodes.
        - effect: NoSchedule
          operator: Exists
        # Mark the pod as a critical add-on for rescheduling.
        - key: CriticalAddonsOnly
          operator: Exists
        - effect: NoExecute
          operator: Exists
      serviceAccountName: calico-node
      # Minimize downtime during a rolling upgrade or deletion; tell Kubernetes to do a "force
      # deletion": https://kubernetes.io/docs/concepts/workloads/pods/pod/#termination-of-pods.
      terminationGracePeriodSeconds: 0
      priorityClassName: system-node-critical
      initContainers:
        # This container performs upgrade from host-local IPAM to calico-ipam.
        # It can be deleted if this is a fresh installation, or if you have already
        # upgraded to use calico-ipam.
        - name: upgrade-ipam
          image: calico/cni:v3.8.9
          command: ["/opt/cni/bin/calico-ipam", "-upgrade"]
          env:
            - name: KUBERNETES_NODE_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            - name: CALICO_NETWORKING_BACKEND
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: calico_backend
          volumeMounts:
            - mountPath: /var/lib/cni/networks
              name: host-local-net-dir
            - mountPath: /host/opt/cni/bin
              name: cni-bin-dir
          securityContext:
            privileged: true
        # This container installs the CNI binaries
        # and CNI network config file on each node.
        - name: install-cni
          image: calico/cni:v3.8.9
          command: ["/install-cni.sh"]
          env:
            # Name of the CNI config file to create.
            - name: CNI_CONF_NAME
              value: "10-calico.conflist"
            # The CNI network config to install on each node.
            - name: CNI_NETWORK_CONFIG
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: cni_network_config
            # Set the hostname based on the k8s node name.
            - name: KUBERNETES_NODE_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            # CNI MTU Config variable
            - name: CNI_MTU
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: veth_mtu
            # Prevents the container from sleeping forever.
            - name: SLEEP
              value: "false"
          volumeMounts:
            - mountPath: /host/opt/cni/bin
              name: cni-bin-dir
            - mountPath: /host/etc/cni/net.d
              name: cni-net-dir
          securityContext:
            privileged: true
        # Adds a Flex Volume Driver that creates a per-pod Unix Domain Socket to allow Dikastes
        # to communicate with Felix over the Policy Sync API.
        - name: flexvol-driver
          image: calico/pod2daemon-flexvol:v3.8.9
          volumeMounts:
          - name: flexvol-driver-host
            mountPath: /host/driver
          securityContext:
            privileged: true
      containers:
        # Runs calico-node container on each Kubernetes node.  This
        # container programs network policy and routes on each
        # host.
        - name: calico-node
          image: calico/node:v3.8.9
          env:
            # Use Kubernetes API as the backing datastore.
            - name: DATASTORE_TYPE
              value: "kubernetes"
            # Wait for the datastore.
            - name: WAIT_FOR_DATASTORE
              value: "true"
            # Set based on the k8s node name.
            - name: NODENAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            # Choose the backend to use.
            - name: CALICO_NETWORKING_BACKEND
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: calico_backend
            # Cluster type to identify the deployment type
            - name: CLUSTER_TYPE
              value: "k8s,bgp"
            # Auto-detect the BGP IP address.
            - name: IP
              value: "autodetect"
            # Enable IPIP
            - name: CALICO_IPV4POOL_IPIP
              value: "Always"
            # Set MTU for tunnel device used if ipip is enabled
            - name: FELIX_IPINIPMTU
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: veth_mtu
            # The default IPv4 pool to create on startup if none exists. Pod IPs will be
            # chosen from this range. Changing this value after installation will have
            # no effect. This should fall within `--cluster-cidr`.
            - name: CALICO_IPV4POOL_CIDR
              value: "10.244.0.0/16"
            # Disable file logging so `kubectl logs` works.
            - name: CALICO_DISABLE_FILE_LOGGING
              value: "true"
            # Set Felix endpoint to host default action to ACCEPT.
            - name: FELIX_DEFAULTENDPOINTTOHOSTACTION
              value: "ACCEPT"
            # Disable IPv6 on Kubernetes.
            - name: FELIX_IPV6SUPPORT
              value: "false"
            # Set Felix logging to "info"
            - name: FELIX_LOGSEVERITYSCREEN
              value: "info"
            - name: FELIX_HEALTHENABLED
              value: "true"
          securityContext:
            privileged: true
          resources:
            requests:
              cpu: 250m
          livenessProbe:
            exec:
              command:
                - /bin/calico-node
                - -felix-live
                - -bird-live
            periodSeconds: 10
            initialDelaySeconds: 10
            failureThreshold: 6
          readinessProbe:
            exec:
              command:
              - /bin/calico-node
              - -bird-ready
              - -felix-ready
            periodSeconds: 10
          volumeMounts:
            - mountPath: /lib/modules
              name: lib-modules
              readOnly: true
            - mountPath: /run/xtables.lock
              name: xtables-lock
              readOnly: false
            - mountPath: /var/run/calico
              name: var-run-calico
              readOnly: false
            - mountPath: /var/lib/calico
              name: var-lib-calico
              readOnly: false
            - name: policysync
              mountPath: /var/run/nodeagent
      volumes:
        # Used by calico-node.
        - name: lib-modules
          hostPath:
            path: /lib/modules
        - name: var-run-calico
          hostPath:
            path: /var/run/calico
        - name: var-lib-calico
          hostPath:
            path: /var/lib/calico
        - name: xtables-lock
          hostPath:
            path: /run/xtables.lock
            type: FileOrCreate
        # Used to install CNI.
        - name: cni-bin-dir
          hostPath:
            path: /opt/cni/bin
        - name: cni-net-dir
          hostPath:
            path: /etc/cni/net.d
        # Mount in the directory for host-local IPAM allocations. This is
        # used when upgrading from host-local to calico-ipam, and can be removed
        # if not using the upgrade-ipam init container.
        - name: host-local-net-dir
          hostPath:
            path: /var/lib/cni/networks
        # Used to create per-pod Unix Domain Sockets
        - name: policysync
          hostPath:
            type: DirectoryOrCreate
            path: /var/run/nodeagent
        # Used to install Flex Volume Driver
        - name: flexvol-driver-host
          hostPath:
            type: DirectoryOrCreate
            path: /usr/libexec/kubernetes/kubelet-plugins/volume/exec/nodeagent~uds
---

apiVersion: v1
kind: ServiceAccount
metadata:
  name: calico-node
  namespace: kube-system

---
# Source: calico/templates/calico-kube-controllers.yaml

# See https://github.com/projectcalico/kube-controllers
apiVersion: apps/v1
kind: Deployment
metadata:
  name: calico-kube-controllers
  namespace: kube-system
  labels:
    k8s-app: calico-kube-controllers
spec:
  # The controllers can only have a single active instance.
  replicas: 1
  selector:
    matchLabels:
      k8s-app: calico-kube-controllers
  strategy:
    type: Recreate
  template:
    metadata:
      name: calico-kube-controllers
      namespace: kube-system
      labels:
        k8s-app: calico-kube-controllers
      annotations:
        scheduler.alpha.kubernetes.io/critical-pod: ''
    spec:
      nodeSelector:
        beta.kubernetes.io/os: linux
      tolerations:
        # Mark the pod as a critical add-on for rescheduling.
        - key: CriticalAddonsOnly
          operator: Exists
        - key: node-role.kubernetes.io/master
          effect: NoSchedule
      serviceAccountName: calico-kube-controllers
      priorityClassName: system-cluster-critical
      containers:
        - name: calico-kube-controllers
          image: calico/kube-controllers:v3.8.9
          env:
            # Choose which controllers to run.
            - name: ENABLED_CONTROLLERS
              value: node
            - name: DATASTORE_TYPE
              value: kubernetes
          readinessProbe:
            exec:
              command:
              - /usr/bin/check-status
              - -r

---

apiVersion: v1
kind: ServiceAccount
metadata:
  name: calico-kube-controllers
  namespace: kube-system
---
# Source: calico/templates/calico-etcd-secrets.yaml

---
# Source: calico/templates/calico-typha.yaml

---
# Source: calico/templates/configure-canal.yaml
# 安装calico网络
$ kubectl apply -f calico.yaml

2.初始化Master-02

#由于集群需要证书进行安全认证所以将第一个master服务器上的证书目录/etc/kubernetes/pki拷贝到本机的/etc/kubernetes/pki;
$ scp -r master-01:/etc/kubernetes/pki /etc/kubernetes/
$ cd /etc/kubernetes/pki
$ \rm -f apiserver* *clinet*

# 初始化Master-02
kubeadm join 192.168.91.254:7443 --token abcdef.0123456789abcdef --discovery-token-ca-cert-hash sha256:5b472a5f83295ab9c241cbd5872a9fdcd7c38bd581ee27c400669ff54c209909 --experimental-control-plane

# 拷贝配置
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

# Master-03初始化操作完全同Master-02相同。

九 添加Node节点

# 在每一个node节点执行如下命令即可
$ kubeadm join 192.168.91.254:7443 --token abcdef.0123456789abcdef --discovery-token-ca-cert-hash sha256:5b472a5f83295ab9c241cbd5872a9fdcd7c38bd581ee27c400669ff54c209909