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二进制文件安装高可用k8s集群（六）node部署服务 {callout color="#f50000"}node上需要部署的服务有kubelet，kube-proxy，containerd三台node的hostname分别为node001，node002，node003IP地址分别为88.61，88.62，88.63{/callout}containerd的安装与配置详见文章 containerd安装与配置kubelet安装与配置{callout color="#f0ad4e"}在node001,002,003上操作{/callout}cd /root #下载客户端软件包并解压 wget https://dl.k8s.io/v1.29.0/kubernetes-node-linux-amd64.tar.gz #复制软件包到/usr/bin目录 tar xf kubernetes-node-linux-amd64.tar.gz cd kubernetes/node/bin/ cp kubelet kube-proxy /usr/bin/ mkdir -p /etc/kubernetes/pki{callout color="#f0ad4e"}在node001上操作{/callout}#修改配置文件 cd /etc/kubernetes/ vim /usr/lib/systemd/system/kubelet.service [Unit] Description=Kubernetes Kubelet Server Documentation=https://github.com/kubernetes/kubernetes After=containerd.service Requires=containerd.service [Service] EnvironmentFile=/etc/kubernetes/kubelet ExecStart=/usr/bin/kubelet $KUBELET_ARGS Restart=always [Install] WantedBy=multi-user.target vim /etc/kubernetes/kubelet KUBELET_ARGS="--kubeconfig=/etc/kubernetes/kubeconfig --config=/etc/kubernetes/kubelet.config \ --hostname-override=192.168.88.61" #--hostname-override=192.168.88.61 表明 kubelet 会使用 192.168.88.61 这个 IP 地址作为该节点在 Kubernetes 集群中的名称，而非操作系统默认的主机名。这样一来，在 Kubernetes 集群里，这个节点就会以 192.168.88.61 来进行标识和管理。 #注意事项 #要保证 --hostname-override 指定的名称在集群内是唯一的，不然会引发节点注册冲突。 #若使用 IP 地址作为主机名，要确保该 IP 地址在集群内是可访问的。 vim /etc/kubernetes/kubelet.config kind: KubeletConfiguration apiVersion: kubelet.config.k8s.io/v1beta1 address: 0.0.0.0 port: 10250 cgroupDriver: systemd clusterDNS: ["10.245.0.100"] clusterDomain: cluster.local authentication: anonymous: enabled: false webhook: enabled: true x509: clientCAFile: /etc/kubernetes/pki/ca.crtsystemctl start kubelet && systemctl enable kubelet#把各种配置文件拷贝到node002,003 scp /usr/lib/systemd/system/kubelet.service node002:/usr/lib/systemd/system/kubelet.service scp /usr/lib/systemd/system/kubelet.service node003:/usr/lib/systemd/system/kubelet.service scp /etc/kubernetes/kubelet node002:/etc/kubernetes/kubelet scp /etc/kubernetes/kubelet node003:/etc/kubernetes/kubelet scp /etc/kubernetes/kubelet.config node002:/etc/kubernetes/kubelet.config scp /etc/kubernetes/kubelet.config node003:/etc/kubernetes/kubelet.config kube-proxy安装与配置{callout color="#f0ad4e"}在node001,002,003上操作{/callout}#加载需要的内核模块，安装需要的软件包 for i in overlay br_netfilter nf_conntrack;do modprobe ${i} echo "${i}" >>/etc/modules-load.d/containerd.conf done cat >/etc/sysctl.d/99-kubernetes-cri.conf<<EOF net.ipv4.ip_forward = 1 net.bridge.bridge-nf-call-iptables = 1 net.bridge.bridge-nf-call-ip6tables = 1 EOF dnf -y install iptables ipvsadm ipset nfs-utils{callout color="#f0ad4e"}在node001上操作{/callout}#创建所需的配置文件 vim /usr/lib/systemd/system/kube-proxy.service [Unit] Description=Kubernetes Kube-Proxy Server Documentation=https://github.com/kubernetes/kubernetes After=network.target [Service] EnvironmentFile=/etc/kubernetes/proxy ExecStart=/usr/bin/kube-proxy $KUBE_PROXY_ARGS Restart=always [Install] WantedBy=multi-user.target vim /etc/kubernetes/proxy KUBE_PROXY_ARGS="--kubeconfig=/etc/kubernetes/kubeconfig \ --hostname-override=192.168.88.61 \ --proxy-mode=ipvs \ --ipvs-strict-arp=true \ --cluster-cidr=169.169.0.0/16"#把配置文件拷贝到node002,003 scp /usr/lib/systemd/system/kube-proxy.service node002:/usr/lib/systemd/system/kube-proxy.service scp /usr/lib/systemd/system/kube-proxy.service node003:/usr/lib/systemd/system/kube-proxy.service scp /etc/kubernetes/proxy node002:/etc/kubernetes/proxy scp /etc/kubernetes/proxy node003:/etc/kubernetes/proxy #启动服务 systemctl start kube-proxy && systemctl enable kube-proxy{callout color="#f0ad4e"}在node002，003上操作{/callout}#在/etc/kubernetes/目录中的kubelet和proxy文件中，有个hostname-override配置项，把它的值改为当前主机的IP地址 #node002：：--hostname-override=192.168.88.62 \ sed -i "/override=/s/61/62/" /etc/kubernetes/proxy sed -i "/override=/s/61/62/" /etc/kubernetes/kubelet #node003：--hostname-override=192.168.88.63 \ sed -i "/override=/s/61/63/" /etc/kubernetes/proxy sed -i "/override=/s/61/63/" /etc/kubernetes/kubelet #开启服务 systemctl start kube-proxy && systemctl enable kube-proxy
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