离线二进制部署k8s 1.20

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##可选保持时间同步 yum -y install ntpdate crontab -e #时间同步 */5 * * * * /usr/sbin/ntpdate 0.asia.pool.ntp.org   ##关闭防火墙和selinux systemctl stop firewalld       vim /etc/hosts 172.22.154.215 master215 172.22.154.216 node216 172.22.154.217 node217   ssh-keygen ssh-copy-id -i /root/.ssh/id_rsa.pub master215 ssh-copy-id -i /root/.ssh/id_rsa.pub node216 ssh-copy-id -i /root/.ssh/id_rsa.pub node217   软件准备 docker-20.10.7.tgz etcd-v3.4.15-linux-amd64.tar.gz kubernetes-server-linux-amd64.tar.gz cfssl cfssl-certinfo cfssljson   镜像准备 registry:2 calico/kube-controllers:v3.22.1 calico/cni:v3.22.1 calico/pod2daemon-flexvol:v3.22.1 calico/node:v3.22.1 registry.cn-beijing.aliyuncs.com/acs/aliyun-ingress-controller:v0.30.0.2-9597b3685-aliyun registry.cn-beijing.aliyuncs.com/acs/busybox:v1.29.2 mirrorgooglecontainers/pause-amd64:3.1     ## 创建目录结构 mkdir -pv /opt/etcd/{bin,cfg,ssl,logs} mkdir -pv /opt/k8s/{bin,cfg,ssl,logs,yaml} mkdir -pv /opt/cni/{bin,cfg,yaml} mkdir -pv /etc/cni/           etcd安装   添加证书生成工具   chmod +x  cfssl cfssljson cfssl-certinfo cp cfssl cfssljson cfssl-certinfo /usr/bin/   #创建证书生成目录 mkdir -pv /data/TLS/{etcd,k8s} cd /data/TLS/etcd     cd /data/TLS/etcd/ cat > ca-config.json << EOF {   "signing": {     "default": {       "expiry": "87600h"     },     "profiles": {       "www": {          "expiry": "87600h",          "usages": [             "signing",             "key encipherment",             "server auth",             "client auth"         ]       }     }   } } EOF     cat > ca-csr.json << EOF {     "CN": "etcd CA",     "key": {         "algo": "rsa",         "size": 2048     },     "names": [         {             "C": "CN",             "L": "Beijing",             "ST": "Beijing"         }     ] } EOF     生成证书 cfssl gencert -initca ca-csr.json | cfssljson -bare ca #查看 ca-config.json  ca.csr  ca-csr.json  ca-key.pem  ca.pem       #hosts文件中包含etcd节点的IP可以多预留几个   cat > server-csr.json << EOF {     "CN": "etcd",     "hosts": [     "172.22.154.215",     "172.22.154.216",     "172.22.154.217",     "172.22.154.218",     "172.22.154.219"     ],     "key": {         "algo": "rsa",         "size": 2048     },     "names": [         {             "C": "CN",             "L": "BeiJing",             "ST": "BeiJing"         }     ] } EOF   #生成证书 cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=www server-csr.json | cfssljson -bare server ca-config.json  ca.csr  ca-csr.json  ca-key.pem  ca.pem  server-csr.json  serverlsca-config.json.csr  serverlsca-config.json-key.pem  serverlsca-config.json.pem     #拷贝证书 cp /data/TLS/etcd/*.pem /opt/etcd/ssl/ rsync -av /data/TLS/etcd/*.pem node216:/opt/etcd/ssl/ rsync -av /data/TLS/etcd/*.pem node217:/opt/etcd/ssl/     #拷贝软件 tar -zxvf etcd-v3.4.15-linux-amd64.tar.gz cp etcd-v3.4.15-linux-amd64/etcd* /opt/etcd/bin/ rsync -av /opt/etcd/bin/* node216:/opt/etcd/bin/ rsync -av /opt/etcd/bin/* node217:/opt/etcd/bin/   #配置etcd配置文件 #master215 cat > /opt/etcd/cfg/etcd.conf << EOF #[Member] ETCD_NAME="etcd-1" ETCD_DATA_DIR="/var/lib/etcd/default.etcd" ETCD_LISTEN_PEER_URLS="https://172.22.154.215:2380" ETCD_LISTEN_CLIENT_URLS="https://172.22.154.215:2379"   #[Clustering] ETCD_INITIAL_ADVERTISE_PEER_URLS="https://172.22.154.215:2380" ETCD_ADVERTISE_CLIENT_URLS="https://172.22.154.215:2379" ETCD_INITIAL_CLUSTER="etcd-1=https://172.22.154.215:2380,etcd-2=https://172.22.154.216:2380,etcd-3=https://172.22.154.217:2380" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" ETCD_INITIAL_CLUSTER_STATE="new" EOF       #node216 cat > /opt/etcd/cfg/etcd.conf << EOF #[Member] ETCD_NAME="etcd-2" ETCD_DATA_DIR="/var/lib/etcd/default.etcd" ETCD_LISTEN_PEER_URLS="https://172.22.154.216:2380" ETCD_LISTEN_CLIENT_URLS="https://172.22.154.216:2379"   #[Clustering] ETCD_INITIAL_ADVERTISE_PEER_URLS="https://172.22.154.216:2380" ETCD_ADVERTISE_CLIENT_URLS="https://172.22.154.216:2379" ETCD_INITIAL_CLUSTER="etcd-1=https://172.22.154.215:2380,etcd-2=https://172.22.154.216:2380,etcd-3=https://172.22.154.217:2380" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" ETCD_INITIAL_CLUSTER_STATE="new" EOF     #node217 cat > /opt/etcd/cfg/etcd.conf << EOF #[Member] ETCD_NAME="etcd-3" ETCD_DATA_DIR="/var/lib/etcd/default.etcd" ETCD_LISTEN_PEER_URLS="https://172.22.154.217:2380" ETCD_LISTEN_CLIENT_URLS="https://172.22.154.217:2379"   #[Clustering] ETCD_INITIAL_ADVERTISE_PEER_URLS="https://172.22.154.217:2380" ETCD_ADVERTISE_CLIENT_URLS="https://172.22.154.217:2379" ETCD_INITIAL_CLUSTER="etcd-1=https://172.22.154.215:2380,etcd-2=https://172.22.154.216:2380,etcd-3=https://172.22.154.217:2380" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" ETCD_INITIAL_CLUSTER_STATE="new" EOF         # ETCD_NAME：节点名称，集群中唯一 # ETCD_DATA_DIR：数据目录 # ETCD_LISTEN_PEER_URLS：集群通信监听地址 # ETCD_LISTEN_CLIENT_URLS：客户端访问监听地址 # ETCD_INITIAL_ADVERTISE_PEER_URLS：集群通告地址 # ETCD_ADVERTISE_CLIENT_URLS：客户端通告地址 # ETCD_INITIAL_CLUSTER：集群节点地址 # ETCD_INITIAL_CLUSTER_TOKEN：集群Token # ETCD_INITIAL_CLUSTER_STATE：加入集群的当前状态，new是新集群，existing表示加入已有集群   ###配置etcd启动文件 cat > /usr/lib/systemd/system/etcd.service << EOF [Unit] Description=Etcd Server After=network.target After=network-online.target Wants=network-online.target   [Service] Type=notify EnvironmentFile=/opt/etcd/cfg/etcd.conf ExecStart=/opt/etcd/bin/etcd \ --cert-file=/opt/etcd/ssl/server.pem \ --key-file=/opt/etcd/ssl/server-key.pem \ --peer-cert-file=/opt/etcd/ssl/server.pem \ --peer-key-file=/opt/etcd/ssl/server-key.pem \ --trusted-ca-file=/opt/etcd/ssl/ca.pem \ --peer-trusted-ca-file=/opt/etcd/ssl/ca.pem \ --logger=zap Restart=on-failure LimitNOFILE=65536   [Install] WantedBy=multi-user.target EOF   启动etcd systemctl daemon-reload systemctl restart etcd systemctl enable etcd systemctl status etcd       安装DOCKER tar -zxvf docker-20.10.7.tgz cp docker/* /usr/bin/ scp docker/* node216:/usr/bin/ scp docker/*  node217:/usr/bin/   ##三台操作 mkdir /etc/docker cat  > /etc/docker/daemon.json << EOF {   "data-root": "/var/lib/docker",   "exec-opts": ["native.cgroupdriver=cgroupfs"],   "insecure-registries": ["https://gsm39obv.mirror.aliyuncs.com","harbor.local"],   "max-concurrent-downloads": 10,   "live-restore": true,   "log-driver": "json-file",   "log-level": "warn",   "log-opts": {     "max-size": "50m",     "max-file": "1"     },   "storage-driver": "overlay2" } EOF   ###harbor.local为后期要使用的本地镜像仓库地址     ##创建启动文件 cat > /usr/lib/systemd/system/docker.service << EOF [Unit] Description=Docker Application Container Engine Documentation=http://docs.docker.io   [Service] Environment="PATH=/bin:/sbin:/usr/bin:/usr/sbin" ExecStart=/usr/bin/dockerd ExecStartPost=/sbin/iptables -I FORWARD -s 0.0.0.0/0 -j ACCEPT ExecReload=/bin/kill -s HUP $MAINPID Restart=always RestartSec=5 LimitNOFILE=infinity LimitNPROC=infinity LimitCORE=infinity Delegate=yes KillMode=process   [Install] WantedBy=multi-user.target EOF   ##启动docker   systemctl daemon-reload systemctl restart docker systemctl status docker systemctl enable  docker     安装MASTER   tar -zxvf kubernetes-server-linux-amd64.tar.gz cd kubernetes/server/bin/ cp kubectl /usr/bin/ rsync -av kubectl kube-apiserver kube-controller-manager kube-scheduler kubelet kube-proxy /opt/k8s/bin/   #同步到node节点 rsync -av kubelet kube-proxy node216:/opt/k8s/bin/ rsync -av kubelet kube-proxy node217:/opt/k8s/bin/   ##生成K8S证书 cd /data/TLS/k8s/   cd /data/TLS/k8s/   cat > ca-config.json << EOF {   "signing": {     "default": {       "expiry": "87600h"     },     "profiles": {       "kubernetes": {          "expiry": "87600h",          "usages": [             "signing",             "key encipherment",             "server auth",             "client auth"         ]       }     }   } } EOF cat > ca-csr.json << EOF {     "CN": "kubernetes",     "key": {         "algo": "rsa",         "size": 2048     },     "names": [         {             "C": "CN",             "L": "Beijing",             "ST": "Beijing",             "O": "k8s",             "OU": "System"         }     ] } EOF   cfssl gencert -initca ca-csr.json | cfssljson -bare ca   ## 创建证书申请文件：   ###可以多预留几个IP后期新增K8S节点   cat > server-csr.json << EOF {     "CN": "kubernetes",     "hosts": [       "10.0.0.1",       "127.0.0.1",       "172.22.154.215",       "172.22.154.216",       "172.22.154.217",       "172.22.154.218",       "172.22.154.219",       "kubernetes",       "kubernetes.default",       "kubernetes.default.svc",       "kubernetes.default.svc.cluster",       "kubernetes.default.svc.cluster.local"     ],     "key": {         "algo": "rsa",         "size": 2048     },     "names": [         {             "C": "CN",             "L": "BeiJing",             "ST": "BeiJing",             "O": "k8s",             "OU": "System"         }     ] } EOF     cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes server-csr.json | cfssljson -bare server   # master 节点     #部署kube-apiserver   cp /data/TLS/k8s/ca*pem /opt/k8s/ssl/ cp /data/TLS/k8s/server*pem /opt/k8s/ssl/   #同步到node节点   scp /data/TLS/k8s/ca.pem node216:/opt/k8s/ssl scp /data/TLS/k8s/ca.pem node217:/opt/k8s/ssl         #创建配置文件   cat > /opt/k8s/cfg/kube-apiserver.conf << EOF KUBE_APISERVER_OPTS="--logtostderr=false \\ --feature-gates=RemoveSelfLink=false \\ --v=2 \\ --log-dir=/opt/k8s/logs \\ --etcd-servers=https://172.22.154.215:2379,https://172.22.154.216:2379,https://172.22.154.217:2379 \\ --bind-address=172.22.154.215 \\ --secure-port=6443 \\ --advertise-address=172.22.154.215 \\ --allow-privileged=true \\ --service-cluster-ip-range=10.0.0.0/24 \\ --enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota,NodeRestriction \\ --authorization-mode=RBAC,Node \\ --enable-bootstrap-token-auth=true \\ --token-auth-file=/opt/k8s/cfg/token.csv \\ --service-node-port-range=30000-32767 \\ --kubelet-client-certificate=/opt/k8s/ssl/server.pem \\ --kubelet-client-key=/opt/k8s/ssl/server-key.pem \\ --tls-cert-file=/opt/k8s/ssl/server.pem  \\ --tls-private-key-file=/opt/k8s/ssl/server-key.pem \\ --client-ca-file=/opt/k8s/ssl/ca.pem \\ --service-account-key-file=/opt/k8s/ssl/ca-key.pem \\ --service-account-issuer=https://kubernetes.default.svc.cluster.local \\ --service-account-signing-key-file=/opt/k8s/ssl/server-key.pem \\ --etcd-cafile=/opt/etcd/ssl/ca.pem \\ --etcd-certfile=/opt/etcd/ssl/server.pem \\ --etcd-keyfile=/opt/etcd/ssl/server-key.pem \\ --requestheader-client-ca-file=/opt/k8s/ssl/ca.pem \\ --proxy-client-cert-file=/opt/k8s/ssl/server.pem \\ --proxy-client-key-file=/opt/k8s/ssl/server-key.pem \\ --requestheader-allowed-names=kubernetes \\ --requestheader-extra-headers-prefix=X-Remote-Extra- \\ --requestheader-group-headers=X-Remote-Group \\ --requestheader-username-headers=X-Remote-User \\ --enable-aggregator-routing=true \\ --audit-log-maxage=30 \\ --audit-log-maxbackup=3 \\ --audit-log-maxsize=100 \\ --audit-log-path=/opt/k8s/logs/k8s-audit.log" EOF     #创建TLS所需的Token echo "`head -c 16 /dev/urandom | od -An -t x | tr -d ' '`,kubelet-bootstrap,10001,"system:node-bootstrapper"" > /opt/k8s/cfg/token.csv   #创建apiserver启动文件 cat > /usr/lib/systemd/system/kube-apiserver.service << EOF [Unit] Description=Kubernetes API Server Documentation=https://github.com/kubernetes/kubernetesAfter=network.target [Service] EnvironmentFile=/opt/k8s/cfg/kube-apiserver.conf ExecStart=/opt/k8s/bin/kube-apiserver \$KUBE_APISERVER_OPTS Restart=on-failure [Install] WantedBy=multi-user.target EOF   systemctl daemon-reload systemctl restart kube-apiserver systemctl enable kube-apiserver systemctl status kube-apiserver       #部署kube-controller-manager #生成配置文件 cat > /opt/k8s/cfg/kube-controller-manager.conf << EOF KUBE_CONTROLLER_MANAGER_OPTS="--logtostderr=false \\ --v=2 \\ --log-dir=/opt/k8s/logs \\ --leader-elect=true \\ --kubeconfig=/opt/k8s/cfg/kube-controller-manager.kubeconfig \\ --bind-address=127.0.0.1 \\ --allocate-node-cidrs=true \\ --cluster-cidr=10.244.0.0/16 \\ --service-cluster-ip-range=10.0.0.0/24 \\ --cluster-signing-cert-file=/opt/k8s/ssl/ca.pem \\ --cluster-signing-key-file=/opt/k8s/ssl/ca-key.pem  \\ --root-ca-file=/opt/k8s/ssl/ca.pem \\ --service-account-private-key-file=/opt/k8s/ssl/ca-key.pem \\ --cluster-signing-duration=87600h0m0s" EOF   # –kubeconfig：连接apiserver配置文件 # –leader-elect：当该组件启动多个时，自动选举（HA） # –cluster-signing-cert-file/–cluster-signing-key-file：自动为kubelet颁发证书的CA，与apiserver保持一致   #生成kube-controller-manager.kubeconfig cd /data/TLS/k8s   cat > kube-controller-manager-csr.json << EOF     {       "CN": "system:kube-controller-manager",       "hosts": [],       "key": {         "algo": "rsa",         "size": 2048       },       "names": [         {           "C": "CN",           "L": "BeiJing",           "ST": "BeiJing",           "O": "system:masters",           "OU": "System"         }       ]     } EOF # 生成证书 cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-controller-manager-csr.json | cfssljson -bare kube-controller-manager     #生成kube-controller-manager.kubeconfig文件 #生成kubeconfig文件(在/data/TLS/k8s下执行) KUBE_APISERVER="https://172.22.154.215:6443" KUBE_CONFIG="/opt/k8s/cfg/kube-controller-manager.kubeconfig"   kubectl config set-cluster kubernetes \ --certificate-authority=/opt/k8s/ssl/ca.pem \ --embed-certs=true \ --server=${KUBE_APISERVER} \ --kubeconfig=${KUBE_CONFIG}   kubectl config set-credentials kube-controller-manager \ --client-certificate=./kube-controller-manager.pem \ --client-key=./kube-controller-manager-key.pem \ --embed-certs=true \ --kubeconfig=${KUBE_CONFIG} kubectl config set-context default \ --cluster=kubernetes \ --user=kube-controller-manager \ --kubeconfig=${KUBE_CONFIG}   kubectl config use-context default --kubeconfig=${KUBE_CONFIG}     #创建Kube-controller-manager启动文件 cat > /usr/lib/systemd/system/kube-controller-manager.service << EOF [Unit] Description=Kubernetes Controller Manager Documentation=https://github.com/kubernetes/kubernetesAfter=kube-apiserver.service [Service] EnvironmentFile=/opt/k8s/cfg/kube-controller-manager.conf ExecStart=/opt/k8s/bin/kube-controller-manager \$KUBE_CONTROLLER_MANAGER_OPTS Restart=on-failure [Install] WantedBy=multi-user.target EOF   #启动kube-controller-manager systemctl daemon-reload systemctl restart kube-controller-manager systemctl status kube-controller-manager systemctl enable kube-controller-manager     ##部署kube-scheduler #生成配置文件 cat > /opt/k8s/cfg/kube-scheduler.conf << EOF KUBE_SCHEDULER_OPTS="--logtostderr=false \\ --v=2 \\ --log-dir=/opt/k8s/logs \\ --leader-elect \\ --kubeconfig=/opt/k8s/cfg/kube-scheduler.kubeconfig \\ --bind-address=127.0.0.1" EOF   # –kubeconfig：连接apiserver配置文件 # –leader-elect：当该组件启动多个时，自动选举（HA）   #生成kube-scheduler.kubeconfig   cd /data/TLS/k8s   # 创建证书请求文件 cat > kube-scheduler-csr.json << EOF {   "CN": "system:kube-scheduler",   "hosts": [],   "key": {     "algo": "rsa",     "size": 2048   },   "names": [     {       "C": "CN",       "L": "BeiJing",       "ST": "BeiJing",       "O": "system:masters",       "OU": "System"     }   ] } EOF   # 生成证书 cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-scheduler-csr.json | cfssljson -bare kube-scheduler   #生成kubeconfig文件(在/data/TLS/k8s下执行) KUBE_CONFIG="/opt/k8s/cfg/kube-scheduler.kubeconfig" KUBE_APISERVER="https://172.22.154.215:6443" kubectl config set-cluster kubernetes \ --certificate-authority=/opt/k8s/ssl/ca.pem \ --embed-certs=true \ --server=${KUBE_APISERVER} \ --kubeconfig=${KUBE_CONFIG}   kubectl config set-credentials kube-scheduler \ --client-certificate=./kube-scheduler.pem \ --client-key=./kube-scheduler-key.pem \ --embed-certs=true \ --kubeconfig=${KUBE_CONFIG}   kubectl config set-context default \ --cluster=kubernetes \ --user=kube-scheduler \ --kubeconfig=${KUBE_CONFIG}   kubectl config use-context default --kubeconfig=${KUBE_CONFIG}   #创建kube-scheduler启动文件 cat > /usr/lib/systemd/system/kube-scheduler.service << EOF [Unit] Description=Kubernetes Scheduler Documentation=https://github.com/kubernetes/kubernetesAfter=kube-apiserver.service [Service] EnvironmentFile=/opt/k8s/cfg/kube-scheduler.conf ExecStart=/opt/k8s/bin/kube-scheduler \$KUBE_SCHEDULER_OPTS Restart=on-failure [Install] WantedBy=multi-user.target EOF   #启动kube-scheduer   systemctl daemon-reload systemctl restart kube-scheduler systemctl status kube-scheduler systemctl enable kube-scheduler       ##生成集群连接证书   cd /data/TLS/k8s cat > admin-csr.json <<EOF {   "CN": "admin",   "hosts": [],   "key": {     "algo": "rsa",     "size": 2048   },   "names": [     {       "C": "CN",       "L": "BeiJing",       "ST": "BeiJing",       "O": "system:masters",       "OU": "System"     }   ] } EOF     cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes admin-csr.json | cfssljson -bare admin   mkdir /root/.kube   mkdir -pv /root/.kube KUBE_CONFIG="/root/.kube/config" KUBE_APISERVER="https://172.22.154.215:6443" kubectl config set-cluster kubernetes \ --certificate-authority=/opt/k8s/ssl/ca.pem \ --embed-certs=true \ --server=${KUBE_APISERVER} \ --kubeconfig=${KUBE_CONFIG}   kubectl config set-credentials cluster-admin \ --client-certificate=./admin.pem \ --client-key=./admin-key.pem \ --embed-certs=true \ --kubeconfig=${KUBE_CONFIG} kubectl config set-context default \ --cluster=kubernetes \ --user=cluster-admin \ --kubeconfig=${KUBE_CONFIG}   kubectl config use-context default --kubeconfig=${KUBE_CONFIG}     #查看集群状态 kubectl get cs   ###部署node节点   ##部署kubelet #生成kubelet配置文件 ###注意pause-amd镜像要放到私有仓库里 cat > /opt/k8s/cfg/kubelet.conf << EOF KUBELET_OPTS="--logtostderr=false \\ --v=2 \\ --log-dir=/opt/k8s/logs \\ --hostname-override=172.22.154.215 \\ --network-plugin=cni \\ --kubeconfig=/opt/k8s/cfg/kubelet.kubeconfig \\ --bootstrap-kubeconfig=/opt/k8s/cfg/bootstrap.kubeconfig \\ --config=/opt/k8s/cfg/kubelet-config.yml \\ --cert-dir=/opt/k8s/ssl \\ --pod-infra-container-image=harbor.local/pause-amd64:3.1" EOF   # –hostname-override：显示名称，为节点hostname, 集群中唯一 # –network-plugin：启用CNI # –kubeconfig：空路径，会自动生成，后面用于连接apiserver # –bootstrap-kubeconfig：首次启动向apiserver申请证书 # –config：配置参数文件 # –cert-dir：kubelet证书生成目录 # –pod-infra-container-image：管理Pod网络容器的镜像   #创建kubelet-config.yaml文件 cat > /opt/k8s/cfg/kubelet-config.yml << EOF kind: KubeletConfiguration apiVersion: kubelet.config.k8s.io/v1beta1 address: 0.0.0.0 port: 10250 readOnlyPort: 10255 cgroupDriver: cgroupfs clusterDNS: - 10.0.0.2 clusterDomain: cluster.local failSwapOn: false authentication:   anonymous:     enabled: false   webhook:     cacheTTL: 2m0s     enabled: true   x509:     clientCAFile: /opt/k8s/ssl/ca.pem authorization:   mode: Webhook   webhook:     cacheAuthorizedTTL: 5m0s     cacheUnauthorizedTTL: 30s evictionHard:   imagefs.available: 15%   memory.available: 100Mi   nodefs.available: 10%   nodefs.inodesFree: 5% maxOpenFiles: 1000000 maxPods: 110 EOF     #kubelet初次加入集群引导kubeconfig文件   KUBE_CONFIG="/opt/k8s/cfg/bootstrap.kubeconfig" KUBE_APISERVER="https://172.22.154.215:6443"  # 与token.csv里保持一致 TOKEN=`cat /opt/k8s/cfg/token.csv|awk -F',' '{print $1}'`   # 生成 kubelet bootstrap kubeconfig 配置文件 kubectl config set-cluster kubernetes \   --certificate-authority=/opt/k8s/ssl/ca.pem \   --embed-certs=true \   --server=${KUBE_APISERVER} \   --kubeconfig=${KUBE_CONFIG} kubectl config set-credentials "kubelet-bootstrap" \   --token=${TOKEN} \   --kubeconfig=${KUBE_CONFIG} kubectl config set-context default \   --cluster=kubernetes \   --user="kubelet-bootstrap" \   --kubeconfig=${KUBE_CONFIG} kubectl config use-context default --kubeconfig=${KUBE_CONFIG}   #创建Kubelet启动文件 cat > /usr/lib/systemd/system/kubelet.service << EOF [Unit] Description=Kubernetes Kubelet After=docker.service [Service] ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpu/podruntime.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpuacct/podruntime.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpuset/podruntime.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/memory/podruntime.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/pids/podruntime.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/systemd/podruntime.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpu/system.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpuacct/system.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/cpuset/system.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/memory/system.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/pids/system.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/systemd/system.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/hugetlb/podruntime.slice ExecStartPre=/bin/mkdir -p /sys/fs/cgroup/hugetlb/system.slice EnvironmentFile=/opt/k8s/cfg/kubelet.conf ExecStart=/opt/k8s/bin/kubelet \$KUBELET_OPTS Restart=on-failure LimitNOFILE=65536 [Install] WantedBy=multi-user.target EOF     ###为kubelet授权 kubectl create clusterrolebinding kubelet-bootstrap \ --clusterrole=system:node-bootstrapper \ --user=kubelet-bootstrap     #启动kubelet systemctl daemon-reload systemctl restart kubelet systemctl status kubelet systemctl enable kubelet   ###把文件同步到其它节点   rsync -av /opt/k8s/cfg/{kubelet.conf,kubelet-config.yml,bootstrap.kubeconfig} node216:/opt/k8s/cfg/ rsync -av /opt/k8s/cfg/{kubelet.conf,kubelet-config.yml,bootstrap.kubeconfig} node217:/opt/k8s/cfg/     ## 同步启动文件 rsync -av /usr/lib/systemd/system/kubelet.service root@node216:/usr/lib/systemd/system/kubelet.service rsync -av /usr/lib/systemd/system/kubelet.service root@node217:/usr/lib/systemd/system/kubelet.service     ###记得修改kubelet.config中hostname-override   ## 其余节点启动 systemctl daemon-reload systemctl restart kubelet systemctl status kubelet systemctl enable kubelet   #批准节点加入集群 kubectl get csr   NAME                                                   AGE     SIGNERNAME                                    REQUESTOR           CONDITION node-csr-0WjKzlX1V8froo4Mgou1K2NruNVsMdgjUM2Ki6OnZHo   2m18s   kubernetes.io/kube-apiserver-client-kubelet   kubelet-bootstrap   Pending node-csr-UfbDWOmC82vJrdiHR2G2Agv-e0lTECTl8sxHPX-XLd8   2m8s    kubernetes.io/kube-apiserver-client-kubelet   kubelet-bootstrap   Pending node-csr-xEtbNTttO6HD9_pE6HmgjSus7iAkBbJrLLGuU1D2MU0   20s     kubernetes.io/kube-apiserver-client-kubelet   kubelet-bootstrap   Pending    kubectl certificate approve node-csr-0WjKzlX1V8froo4Mgou1K2NruNVsMdgjUM2Ki6OnZHo  kubectl certificate approve  node-csr-UfbDWOmC82vJrdiHR2G2Agv-e0lTECTl8sxHPX-XLd8  kubectl certificate approve node-csr-xEtbNTttO6HD9_pE6HmgjSus7iAkBbJrLLGuU1D2MU0   ############错误展示####################### node217在启动Kubelet的时候没有修改config文件导致hostname冲突注册之后查看node并没有该节点 #停止Kubelet systemctl stop kubelet #修改config文件 vim /opt/k8s/cfg/kubelet.conf #删除kubelet.kubeconfig  该文件中包含了注册信息不删除无法重新注册 rm -rf /opt/k8s/cfg/kubelet.kubeconfig #重启Kubelet systemctl restart kubelet #再重新同意kubelet加入即可       ####部署kube-proxy   #创建配置文件 cat > /opt/k8s/cfg/kube-proxy.conf << EOF KUBE_PROXY_OPTS=" --logtostderr=false \\ --v=2 \\ --log-dir=/opt/k8s/logs \\ --config=/opt/k8s/cfg/kube-proxy-config.yml" EOF     #生成证书 cd /data/TLS/k8s # 创建证书请求文件 cat > kube-proxy-csr.json << EOF {   "CN": "system:kube-proxy",   "hosts": [],   "key": {     "algo": "rsa",     "size": 2048   },   "names": [     {       "C": "CN",       "L": "BeiJing",       "ST": "BeiJing",       "O": "k8s",       "OU": "System"     }   ] } EOF   cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-proxy-csr.json | cfssljson -bare kube-proxy   #生成kube-proxy.kubeconfig文件 KUBE_CONFIG="/opt/k8s/cfg/kube-proxy.kubeconfig" KUBE_APISERVER="https://172.22.154.215:6443" kubectl config set-cluster kubernetes \ --certificate-authority=/opt/k8s/ssl/ca.pem \ --embed-certs=true \ --server=${KUBE_APISERVER} \ --kubeconfig=${KUBE_CONFIG} kubectl config set-credentials kube-proxy \ --client-certificate=./kube-proxy.pem \ --client-key=./kube-proxy-key.pem \ --embed-certs=true \ --kubeconfig=${KUBE_CONFIG} kubectl config set-context default \ --cluster=kubernetes \ --user=kube-proxy \ --kubeconfig=${KUBE_CONFIG} kubectl config use-context default --kubeconfig=${KUBE_CONFIG}   #创建Kube-proxy-config.yaml文件 cat > /opt/k8s/cfg/kube-proxy-config.yml << EOF kind: KubeProxyConfiguration apiVersion: kubeproxy.config.k8s.io/v1alpha1 bindAddress: 0.0.0.0 metricsBindAddress: 0.0.0.0:10249 clientConnection:   kubeconfig: /opt/k8s/cfg/kube-proxy.kubeconfig hostnameOverride: 172.22.154.215 clusterCIDR: 10.0.0.0/24 EOF   #创建kube-proxy启动文件 cat > /usr/lib/systemd/system/kube-proxy.service << EOF [Unit] Description=Kubernetes Proxy After=network.target   [Service] EnvironmentFile=/opt/k8s/cfg/kube-proxy.conf ExecStart=/opt/k8s/bin/kube-proxy \$KUBE_PROXY_OPTS Restart=on-failure LimitNOFILE=65536   [Install] WantedBy=multi-user.target EOF     ## 同步kube-proxy配置 rsync -av /opt/k8s/cfg/{kube-proxy.conf,kube-proxy-config.yml,kube-proxy.kubeconfig} node216:/opt/k8s/cfg/ rsync -av /opt/k8s/cfg/{kube-proxy.conf,kube-proxy-config.yml,kube-proxy.kubeconfig} node217:/opt/k8s/cfg/   ## 同步启动文件 rsync -av /usr/lib/systemd/system/kube-proxy.service node216:/usr/lib/systemd/system/kube-proxy.service rsync -av /usr/lib/systemd/system/kube-proxy.service node217:/usr/lib/systemd/system/kube-proxy.service   ####要记得修改Kube-proxy-config.yaml文件中hostnameOverride   #启动kube-proxy systemctl daemon-reload systemctl restart kube-proxy systemctl enable kube-proxy systemctl status kube-proxy       #授权apiserver访问kubelet cat > /opt/k8s/yaml/apiserver-to-kubelet-rbac.yaml << EOF apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata:   annotations:     rbac.authorization.kubernetes.io/autoupdate: "true"   labels:     kubernetes.io/bootstrapping: rbac-defaults   name: system:kube-apiserver-to-kubelet rules:   - apiGroups:       - ""     resources:       - nodes/proxy       - nodes/stats       - nodes/log       - nodes/spec       - nodes/metrics       - pods/log     verbs:       - "*" --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata:   name: system:kube-apiserver   namespace: "" roleRef:   apiGroup: rbac.authorization.k8s.io   kind: ClusterRole   name: system:kube-apiserver-to-kubelet subjects:   - apiGroup: rbac.authorization.k8s.io     kind: User     name: kubernetes EOF   kubectl apply -f apiserver-to-kubelet-rbac.yaml       ###搭建私有镜像仓库 ###搭建镜像仓库会和ingress的443端口冲突，所以尽量不要复用   #添加解析  所有节点都要添加   IP替换为部署registry的节点IP vim /etc/hosts/   172.22.154.215 harbor.local   #容器镜像自行准备   #创建证书 mkdir -p certs openssl req \ -newkey rsa:4096 -nodes -sha256 -keyout certs/domain.key \ -x509 -days 36500 -out certs/domain.crt #启动仓库 docker run -d \   --restart=always \   --name registry \   -v "$(pwd)"/certs:/certs \   -v /mnt/registry:/var/lib/registry \   -e REGISTRY_HTTP_ADDR=0.0.0.0:443 \   -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/domain.crt \   -e REGISTRY_HTTP_TLS_KEY=/certs/domain.key \   -p 443:443 \   registry:2     #把证书发到每一个节点   mkdir -p  /etc/docker/certs.d/harbor.local/ cp certs/domain.crt   /etc/docker/certs.d/harbor.local/ca.crt scp -r /etc/docker/certs.d node216:/etc/docker/ scp -r /etc/docker/certs.d node217:/etc/docker/   #上传所需的镜像           ###部署calico   mkdir /opt/kubernetes/yaml cd /opt/kubernetes/yaml curl -k https://docs.projectcalico.org/manifests/calico-etcd.yaml -o calico-etcd.yaml       vim calico.yaml     ## etcd 证书 base64 地址 (执行里面的命令生成的证书 base64 码，填入里面)     apiVersion: v1     kind: Secret     type: Opaque     metadata:       name: calico-etcd-secrets       namespace: kube-system     data:        etcd-key: "xxxxx执行结果"#(cat /opt/etcd/ssl/server-key.pem | base64 | tr -d '\n') ###这三个地方需要在shell界面执行完复制结果替换进来        etcd-cert:"xxxx"     #(cat /opt/etcd/ssl/server.pem | base64 | tr -d '\n')        etcd-ca: "xxx"       #(cat /opt/etcd/ssl/ca.pem | base64 | tr -d '\n')     ## 如上()中只是生成base64码的命令实际操作时需要去掉(),只需要填写生成的编码并用双引号引起来即可       ## ConfigMap     ### 修改etcd地址       etcd_endpoints: "https://172.22.154.207:2379,https://172.22.154.207:2379,https://172.22.154.207:2379"     ### 修改etcd证书位置       etcd_ca: "/calico-secrets/etcd-ca"       etcd_cert: "/calico-secrets/etcd-cert"       etcd_key: "/calico-secrets/etcd-key"     ## 修改pod 分配的IP段(不能与node、service等地址同一网段)       - name: CALICO_IPV4POOL_CIDR         value: "10.244.0.0/16"             --- # Source: calico/templates/calico-node-rbac.yaml # 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   # EndpointSlices are used for Service-based network policy rule   # enforcement.   - apiGroups: ["discovery.k8s.io"]     resources:       - endpointslices     verbs:       - watch       - list   - apiGroups: [""]     resources:       - endpoints       - services     verbs:       # Used to discover service IPs for advertisement.       - watch       - list   # Pod CIDR auto-detection on kubeadm needs access to config maps.   - apiGroups: [""]     resources:       - configmaps     verbs:       - get   - apiGroups: [""]     resources:       - nodes/status     verbs:       # Needed for clearing NodeNetworkUnavailable flag.       - patch   --- 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     spec:       nodeSelector:         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 installs the CNI binaries         # and CNI network config file on each node.         - name: install-cni           image: docker.io/calico/cni:v3.20.2           command: ["/opt/cni/bin/install"]           envFrom:           - configMapRef:               # Allow KUBERNETES_SERVICE_HOST and KUBERNETES_SERVICE_PORT to be overridden for eBPF mode.               name: kubernetes-services-endpoint               optional: true           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             # The location of the etcd cluster.             - name: ETCD_ENDPOINTS               valueFrom:                 configMapKeyRef:                   name: calico-config                   key: etcd_endpoints             # 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             - mountPath: /calico-secrets               name: etcd-certs           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: docker.io/calico/pod2daemon-flexvol:v3.20.2           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: docker.io/calico/node:v3.20.2           envFrom:           - configMapRef:               # Allow KUBERNETES_SERVICE_HOST and KUBERNETES_SERVICE_PORT to be overridden for eBPF mode.               name: kubernetes-services-endpoint               optional: true           env:             # The location of the etcd cluster.             - name: ETCD_ENDPOINTS               valueFrom:                 configMapKeyRef:                   name: calico-config                   key: etcd_endpoints             # Location of the CA certificate for etcd.             - name: ETCD_CA_CERT_FILE               valueFrom:                 configMapKeyRef:                   name: calico-config                   key: etcd_ca             # Location of the client key for etcd.             - name: ETCD_KEY_FILE               valueFrom:                 configMapKeyRef:                   name: calico-config                   key: etcd_key             # Location of the client certificate for etcd.             - name: ETCD_CERT_FILE               valueFrom:                 configMapKeyRef:                   name: calico-config                   key: etcd_cert             # Set noderef for node controller.             - name: CALICO_K8S_NODE_REF               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"             # Enable or Disable VXLAN on the default IP pool.             - name: CALICO_IPV4POOL_VXLAN               value: "Never"             # Set MTU for tunnel device used if ipip is enabled             - name: FELIX_IPINIPMTU               valueFrom:                 configMapKeyRef:                   name: calico-config                   key: veth_mtu             # Set MTU for the VXLAN tunnel device.             - name: FELIX_VXLANMTU               valueFrom:                 configMapKeyRef:                   name: calico-config                   key: veth_mtu             # Set MTU for the Wireguard tunnel device.             - name: FELIX_WIREGUARDMTU               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"             - name: FELIX_HEALTHENABLED               value: "true"           securityContext:             privileged: true           resources:             requests:               cpu: 250m           lifecycle:             preStop:               exec:                 command:                 - /bin/calico-node                 - -shutdown           livenessProbe:             exec:               command:               - /bin/calico-node               - -felix-live               - -bird-live             periodSeconds: 10             initialDelaySeconds: 10             failureThreshold: 6             timeoutSeconds: 10           readinessProbe:             exec:               command:               - /bin/calico-node               - -felix-ready               - -bird-ready             periodSeconds: 10             timeoutSeconds: 10           volumeMounts:             # For maintaining CNI plugin API credentials.             - mountPath: /host/etc/cni/net.d               name: cni-net-dir               readOnly: false             - 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             - mountPath: /calico-secrets               name: etcd-certs             - name: policysync               mountPath: /var/run/nodeagent             # For eBPF mode, we need to be able to mount the BPF filesystem at /sys/fs/bpf so we mount in the             # parent directory.             - name: sysfs               mountPath: /sys/fs/               # Bidirectional means that, if we mount the BPF filesystem at /sys/fs/bpf it will propagate to the host.               # If the host is known to mount that filesystem already then Bidirectional can be omitted.               mountPropagation: Bidirectional             - name: cni-log-dir               mountPath: /var/log/calico/cni               readOnly: true       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         - name: sysfs           hostPath:             path: /sys/fs/             type: DirectoryOrCreate         # Used to install CNI.         - name: cni-bin-dir           hostPath:             path: /opt/cni/bin         - name: cni-net-dir           hostPath:             path: /etc/cni/net.d         # Used to access CNI logs.         - name: cni-log-dir           hostPath:             path: /var/log/calico/cni         # Mount in the etcd TLS secrets with mode 400.         # See https://kubernetes.io/docs/concepts/configuration/secret/         - name: etcd-certs           secret:             secretName: calico-etcd-secrets             defaultMode: 0400         # 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     spec:       nodeSelector:         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       # The controllers must run in the host network namespace so that       # it isn't governed by policy that would prevent it from working.       hostNetwork: true       containers:         - name: calico-kube-controllers           image: docker.io/calico/kube-controllers:v3.20.2           env:             # The location of the etcd cluster.             - name: ETCD_ENDPOINTS               valueFrom:                 configMapKeyRef:                   name: calico-config                   key: etcd_endpoints             # Location of the CA certificate for etcd.             - name: ETCD_CA_CERT_FILE               valueFrom:                 configMapKeyRef:                   name: calico-config                   key: etcd_ca             # Location of the client key for etcd.             - name: ETCD_KEY_FILE               valueFrom:                 configMapKeyRef:                   name: calico-config                   key: etcd_key             # Location of the client certificate for etcd.             - name: ETCD_CERT_FILE               valueFrom:                 configMapKeyRef:                   name: calico-config                   key: etcd_cert             # Choose which controllers to run.             - name: ENABLED_CONTROLLERS               value: policy,namespace,serviceaccount,workloadendpoint,node           volumeMounts:             # Mount in the etcd TLS secrets.             - mountPath: /calico-secrets               name: etcd-certs           livenessProbe:             exec:               command:               - /usr/bin/check-status               - -l             periodSeconds: 10             initialDelaySeconds: 10             failureThreshold: 6             timeoutSeconds: 10           readinessProbe:             exec:               command:               - /usr/bin/check-status               - -r             periodSeconds: 10       volumes:         # Mount in the etcd TLS secrets with mode 400.         # See https://kubernetes.io/docs/concepts/configuration/secret/         - name: etcd-certs           secret:             secretName: calico-etcd-secrets             defaultMode: 0440   ---   apiVersion: v1 kind: ServiceAccount metadata:   name: calico-kube-controllers   namespace: kube-system   ---   # This manifest creates a Pod Disruption Budget for Controller to allow K8s Cluster Autoscaler to evict   apiVersion: policy/v1beta1 kind: PodDisruptionBudget metadata:   name: calico-kube-controllers   namespace: kube-system   labels:     k8s-app: calico-kube-controllers spec:   maxUnavailable: 1   selector:     matchLabels:       k8s-app: calico-kube-controllers   --- # Source: calico/templates/calico-typha.yaml   --- # Source: calico/templates/configure-canal.yaml   --- # Source: calico/templates/kdd-crds.yaml     kubectl apply -f calico.yaml #等pod都启动完毕查看node已经Ready     ###部署coredns   apiVersion: v1 kind: ServiceAccount metadata:   name: coredns   namespace: kube-system   labels:       kubernetes.io/cluster-service: "true"       addonmanager.kubernetes.io/mode: Reconcile --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata:   labels:     kubernetes.io/bootstrapping: rbac-defaults     addonmanager.kubernetes.io/mode: Reconcile   name: system:coredns rules: - apiGroups:   - ""   resources:   - endpoints   - services   - pods   - namespaces   verbs:   - list   - watch - apiGroups:   - ""   resources:   - nodes   verbs:   - get --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata:   annotations:     rbac.authorization.kubernetes.io/autoupdate: "true"   labels:     kubernetes.io/bootstrapping: rbac-defaults     addonmanager.kubernetes.io/mode: EnsureExists   name: system:coredns roleRef:   apiGroup: rbac.authorization.k8s.io   kind: ClusterRole   name: system:coredns subjects: - kind: ServiceAccount   name: coredns   namespace: kube-system --- apiVersion: v1 kind: ConfigMap metadata:   name: coredns   namespace: kube-system   labels:       addonmanager.kubernetes.io/mode: EnsureExists data:   Corefile: |     .:53 {         errors         health {             lameduck 5s         }         ready         kubernetes cluster.local in-addr.arpa ip6.arpa {             pods insecure             fallthrough in-addr.arpa ip6.arpa             ttl 30         }         prometheus :9153         forward . /etc/resolv.conf         cache 30         loop         reload         loadbalance     } --- apiVersion: apps/v1 kind: Deployment metadata:   name: coredns   namespace: kube-system   labels:     k8s-app: kube-dns     kubernetes.io/cluster-service: "true"     addonmanager.kubernetes.io/mode: Reconcile     kubernetes.io/name: "CoreDNS" spec:   # replicas: not specified here:   # 1. In order to make Addon Manager do not reconcile this replicas parameter.   # 2. Default is 1.   # 3. Will be tuned in real time if DNS horizontal auto-scaling is turned on.   strategy:     type: RollingUpdate     rollingUpdate:       maxUnavailable: 1   selector:     matchLabels:       k8s-app: kube-dns   template:     metadata:       labels:         k8s-app: kube-dns       annotations:         seccomp.security.alpha.kubernetes.io/pod: 'runtime/default'     spec:       priorityClassName: system-cluster-critical       serviceAccountName: coredns       tolerations:         - key: "CriticalAddonsOnly"           operator: "Exists"       nodeSelector:         kubernetes.io/os: linux       containers:       - name: coredns         image: coredns/coredns:1.8.0         imagePullPolicy: IfNotPresent         resources:           limits:             memory: 160Mi           requests:             cpu: 100m             memory: 70Mi         args: [ "-conf", "/etc/coredns/Corefile" ]         volumeMounts:         - name: config-volume           mountPath: /etc/coredns           readOnly: true         ports:         - containerPort: 53           name: dns           protocol: UDP         - containerPort: 53           name: dns-tcp           protocol: TCP         - containerPort: 9153           name: metrics           protocol: TCP         livenessProbe:           httpGet:             path: /health             port: 8080             scheme: HTTP           initialDelaySeconds: 60           timeoutSeconds: 5           successThreshold: 1           failureThreshold: 5         readinessProbe:           httpGet:             path: /ready             port: 8181             scheme: HTTP         securityContext:           allowPrivilegeEscalation: false           capabilities:             add:             - NET_BIND_SERVICE             drop:             - all           readOnlyRootFilesystem: true       dnsPolicy: Default       volumes:         - name: config-volume           configMap:             name: coredns             items:             - key: Corefile               path: Corefile --- apiVersion: v1 kind: Service metadata:   name: kube-dns   namespace: kube-system   annotations:     prometheus.io/port: "9153"     prometheus.io/scrape: "true"   labels:     k8s-app: kube-dns     kubernetes.io/cluster-service: "true"     addonmanager.kubernetes.io/mode: Reconcile     kubernetes.io/name: "CoreDNS" spec:   selector:     k8s-app: kube-dns   clusterIP: 10.0.0.2   ports:   - name: dns     port: 53     protocol: UDP   - name: dns-tcp     port: 53     protocol: TCP   - name: metrics     port: 9153     protocol: TCP     ###部署ingress-nginx apiVersion: v1 kind: Namespace metadata:   name: ingress-nginx   labels:     app: ingress-nginx   --- apiVersion: v1 kind: ServiceAccount metadata:   name: nginx-ingress-controller   namespace: ingress-nginx   labels:     app: ingress-nginx   --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata:   name: nginx-ingress-controller   labels:     app: ingress-nginx rules:   - apiGroups:       - ""     resources:       - configmaps       - endpoints       - nodes       - pods       - secrets       - namespaces       - services     verbs:       - get       - list       - watch   - apiGroups:       - "extensions"       - "networking.k8s.io"     resources:       - ingresses     verbs:       - get       - list       - watch   - apiGroups:       - ""     resources:       - events     verbs:       - create       - patch   - apiGroups:       - "extensions"       - "networking.k8s.io"     resources:       - ingresses/status     verbs:       - update   - apiGroups:       - ""     resources:       - configmaps     verbs:       - create   - apiGroups:       - ""     resources:       - configmaps     resourceNames:       - "ingress-controller-leader-nginx"     verbs:       - get       - update   --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata:   name: nginx-ingress-controller   labels:     app: ingress-nginx roleRef:   apiGroup: rbac.authorization.k8s.io   kind: ClusterRole   name: nginx-ingress-controller subjects:   - kind: ServiceAccount     name: nginx-ingress-controller     namespace: ingress-nginx   --- apiVersion: v1 kind: Service metadata:   labels:     app: ingress-nginx   name: nginx-ingress-lb   namespace: ingress-nginx spec:   # DaemonSet need:   # ----------------   type: ClusterIP   # ----------------   # Deployment need:   # ---------------- #  type: NodePort   # ----------------   ports:   - name: http     port: 80     targetPort: 80     protocol: TCP   - name: https     port: 443     targetPort: 443     protocol: TCP   - name: metrics     port: 10254     protocol: TCP     targetPort: 10254   selector:     app: ingress-nginx   --- kind: ConfigMap apiVersion: v1 metadata:   name: nginx-configuration   namespace: ingress-nginx   labels:     app: ingress-nginx data:   keep-alive: "75"   keep-alive-requests: "100"   upstream-keepalive-connections: "10000"   upstream-keepalive-requests: "100"   upstream-keepalive-timeout: "60"   allow-backend-server-header: "true"   enable-underscores-in-headers: "true"   generate-request-id: "true"   http-redirect-code: "301"   ignore-invalid-headers: "true"   log-format-upstream: '{"@timestamp": "$time_iso8601","remote_addr": "$remote_addr","x-forward-for": "$proxy_add_x_forwarded_for","request_id": "$req_id","remote_user": "$remote_user","bytes_sent": $bytes_sent,"request_time": $request_time,"status": $status,"vhost": "$host","request_proto": "$server_protocol","path": "$uri","request_query": "$args","request_length": $request_length,"duration": $request_time,"method": "$request_method","http_referrer": "$http_referer","http_user_agent":  "$http_user_agent","upstream-sever":"$proxy_upstream_name","proxy_alternative_upstream_name":"$proxy_alternative_upstream_name","upstream_addr":"$upstream_addr","upstream_response_length":$upstream_response_length,"upstream_response_time":$upstream_response_time,"upstream_status":$upstream_status}'   max-worker-connections: "65536"   worker-processes: "2"   proxy-body-size: 20m   proxy-connect-timeout: "10"   proxy_next_upstream: error timeout http_502   reuse-port: "true"   server-tokens: "false"   ssl-ciphers: ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA   ssl-protocols: TLSv1 TLSv1.1 TLSv1.2   ssl-redirect: "false"   worker-cpu-affinity: auto   --- kind: ConfigMap apiVersion: v1 metadata:   name: tcp-services   namespace: ingress-nginx   labels:     app: ingress-nginx   --- kind: ConfigMap apiVersion: v1 metadata:   name: udp-services   namespace: ingress-nginx   labels:     app: ingress-nginx   --- apiVersion: apps/v1 kind: DaemonSet metadata:   name: nginx-ingress-controller   namespace: ingress-nginx   labels:     app: ingress-nginx   annotations:     component.version: "v0.30.0"     component.revision: "v1" spec:   # Deployment need:   # ---------------- #  replicas: 1   # ----------------   selector:     matchLabels:       app: ingress-nginx   template:     metadata:       labels:         app: ingress-nginx       annotations:         prometheus.io/port: "10254"         prometheus.io/scrape: "true"         scheduler.alpha.kubernetes.io/critical-pod: ""     spec:       # DaemonSet need:       # ----------------       hostNetwork: true       # ----------------       serviceAccountName: nginx-ingress-controller       priorityClassName: system-node-critical       affinity:         podAntiAffinity:           preferredDuringSchedulingIgnoredDuringExecution:           - podAffinityTerm:               labelSelector:                 matchExpressions:                 - key: app                   operator: In                   values:                   - ingress-nginx               topologyKey: kubernetes.io/hostname             weight: 100         nodeAffinity:           requiredDuringSchedulingIgnoredDuringExecution:             nodeSelectorTerms:             - matchExpressions:               - key: type                 operator: NotIn                 values:                 - virtual-kubelet       containers:         - name: nginx-ingress-controller           image: registry.cn-beijing.aliyuncs.com/acs/aliyun-ingress-controller:v0.30.0.2-9597b3685-aliyun           args:             - /nginx-ingress-controller             - --configmap=$(POD_NAMESPACE)/nginx-configuration             - --tcp-services-configmap=$(POD_NAMESPACE)/tcp-services             - --udp-services-configmap=$(POD_NAMESPACE)/udp-services             - --publish-service=$(POD_NAMESPACE)/nginx-ingress-lb             - --annotations-prefix=nginx.ingress.kubernetes.io             - --enable-dynamic-certificates=true             - --v=2           securityContext:             allowPrivilegeEscalation: true             capabilities:               drop:                 - ALL               add:                 - NET_BIND_SERVICE             runAsUser: 101           env:             - name: POD_NAME               valueFrom:                 fieldRef:                   fieldPath: metadata.name             - name: POD_NAMESPACE               valueFrom:                 fieldRef:                   fieldPath: metadata.namespace           ports:             - name: http               containerPort: 80             - name: https               containerPort: 443           livenessProbe:             failureThreshold: 3             httpGet:               path: /healthz               port: 10254               scheme: HTTP             initialDelaySeconds: 10             periodSeconds: 10             successThreshold: 1             timeoutSeconds: 10           readinessProbe:             failureThreshold: 3             httpGet:               path: /healthz               port: 10254               scheme: HTTP             periodSeconds: 10             successThreshold: 1             timeoutSeconds: 10 #          resources: #            limits: #              cpu: "1" #              memory: 2Gi #            requests: #              cpu: "1" #              memory: 2Gi           volumeMounts:           - mountPath: /etc/localtime             name: localtime             readOnly: true       volumes:       - name: localtime         hostPath:           path: /etc/localtime           type: File       tolerations:       - operator: Exists         initContainers:       - command:         - /bin/sh         - -c         - |           mount -o remount rw /proc/sys           sysctl -w net.core.somaxconn=65535           sysctl -w net.ipv4.ip_local_port_range="1024 65535"           sysctl -w fs.file-max=1048576           sysctl -w fs.inotify.max_user_instances=16384           sysctl -w fs.inotify.max_user_watches=524288           sysctl -w fs.inotify.max_queued_events=16384         image: registry.cn-beijing.aliyuncs.com/acs/busybox:v1.29.2         imagePullPolicy: IfNotPresent         name: init-sysctl         securityContext:           privileged: true           procMount: Default         ###etcd备份数据 cp etcdctl /usr/bin/   #查看etcd状态 ETCDCTL_API=3 etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints=https://172.22.154.215:2379,https://172.22.154.216:2379,https://172.22.154.217:2379 endpoint health     备份数据  ETCDCTL_API=3 etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints=https://172.22.154.215:2379  snapshot save /data/etcd_backup_dir/etcd-snapshot-`date +%Y%m%d`.db     备份脚本 ####为避免集群服务器崩溃建议将备份数据在其它服务器上也存储一份！ #!/usr/bin/env bash   date;   CACERT="/opt/etcd/ssl/ca.pem" CERT="/opt/etcd/ssl/server.pem" EKY="/opt/etcd/ssl/server-key.pem" ENDPOINTS="172.22.154.215:2379"   ETCDCTL_API=3 etcdctl \ --cacert="${CACERT}" --cert="${CERT}" --key="${EKY}" \ --endpoints=${ENDPOINTS} \ snapshot save /data/etcd_backup_dir/etcd-snapshot-`date +%Y%m%d`.db   # 备份保留30天 find /data/etcd_backup_dir/ -name *.db -mtime +30 -exec rm -f {} \;