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福州制作网站提供商,建设一个购物网站需要什么意思,wordpress的文章title在哪里,seo推广网站有哪目录 1、准备环境 #xff08;温馨提示#xff1a;尽量一次完成集群#xff09; 2.安装master节点 3、安装k8s-master上的node 4、安装配置k8s-node1节点 5、安装k8s-node2节点 6、为所有node节点配置flannel网络 7、配置docker开启加载防火墙规则允许转发数据 一. 环…目录 1、准备环境 温馨提示尽量一次完成集群 2.安装master节点 3、安装k8s-master上的node 4、安装配置k8s-node1节点 5、安装k8s-node2节点 6、为所有node节点配置flannel网络 7、配置docker开启加载防火墙规则允许转发数据 一. 环境搭建 1、准备环境 温馨提示尽量一次完成集群 集群很容易断网 1)  计算机说明建议系统版本7.4或者7.6 主机名IP地址角色硬件 k8s-master 192.168.50.53masternode Etcd、apiserver、controlor-manager、scheduler、kube-proxy、docker、registry k8s-node1192.168.50.50node Kubletel、kube-proxy、docker k8s-node2192.168.50.51node Kubletel、kube-proxy、docker 2)  修改主机的计算机名设置host文件 [rootlocalhost ~]# hostname k8s-master [rootlocalhost ~]# bash [rootk8s-master ~]# vim /etc/hosts 192.168.50.53 k8s-master 192.168.50.50 k8s-node1 192.168.50.51 k8s-node2 ~                        [rootk8s-master ~]# scp /etc/hosts 192.168.50.51:/etc [rootk8s-master ~]# scp /etc/hosts 192.168.50.50:/etc 2.安装master节点 1安装etcd配置etcd [rootk8s-master ~]# yum -y install etcd [rootk8s-master ~]# cp /etc/etcd/etcd.conf  /etc/etcd/etcd.conf.bak [rootk8s-master ~]# vim /etc/etcd/etcd.conf 6 ETCD_LISTEN_CLIENT_URLShttp://0.0.0.0:2379 21 ETCD_ADVERTISE_CLIENT_URLShttp://192.168.50.53:2379 [rootk8s-master ~]# systemctl start etcd [rootk8s-master ~]# systemctl enable etcd Created symlink from /etc/systemd/system/multi-user.target.wants/etcd.service to /usr/lib/systemd/system/etcd.service. 2安装k8s-master节点 [rootk8s-master ~]# yum -y install kubernetes-master.x86_64 3配置apiserver [rootk8s-master ~]# vim /etc/kubernetes/apiserver 1 ###   2 # kubernetes system config   3 #   4 # The following values are used to configure the kube-apiserver   5 #   6   7 # The address on the local server to listen to.   8 KUBE_API_ADDRESS–insecure-bind-address0.0.0.0   9  10 # The port on the local server to listen on.  11 KUBE_API_PORT–port8080  12  13 # Port minions listen on  14 KUBELET_PORT–kubelet-port10250  15  16 # Comma separated list of nodes in the etcd cluster  17 KUBE_ETCD_SERVERS–etcd-servershttp://192.168.50.53:2379  18  19 # Address range to use for services  20 KUBE_SERVICE_ADDRESSES–service-cluster-ip-range10.254.0.0/16  21  22 # default admission control policies 23KUBE_ADMISSION_CONTROLadmissioncontrolNamespaceLifecycle,NamespaceExists,LimitRanger,Security    ContextDeny,ResourceQuota  24  25 # Add your own!  26 KUBE_API_ARGS 4 配置controller和scheduler [rootk8s-master ~]# vim /etc/kubernetes/config 22 KUBE_MASTER–masterhttp://192.168.50.53:8080 启动k8s服务 [rootk8s-master ~]# systemctl start kube-apiserver.service [rootk8s-master ~]# systemctl start kube-controller-manager.service [rootk8s-master ~]# systemctl start kube-scheduler.service [rootk8s-master ~]# systemctl enable kube-apiserver.service Created symlink from /etc/systemd/system/multi-user.target.wants/kube-apiserver.service to /usr/lib/systemd/system/kube-apiserver.service. [rootk8s-master ~]# systemctl enable kube-controller-manager.service Created symlink from /etc/systemd/system/multi-user.target.wants/kube-controller-manager.service to /usr/lib/systemd/system/kube-controller-manager.service. [rootk8s-master ~]# systemctl enable kube-scheduler.server Failed to execute operation: No such file or directory [rootk8s-master ~]# systemctl enable kube-scheduler.service Created symlink from /etc/systemd/system/multi-user.target.wants/kube-scheduler.service to /usr/lib/systemd/system/kube-scheduler.service. 检查节点是否监控 [rootk8s-master ~]# kubectl get componentstatus NAME                 STATUS    MESSAGE             ERROR etcd-0               Healthy   {health:true}    controller-manager   Healthy   ok                   scheduler            Healthy   ok                   3、安装k8s-master上的node 1安装node [rootk8s-master ~]# yum -y install kubernetes node.x86_64 2配置kubelet [rootk8s-master ~]# vim /etc/kubernetes/kubelet 5 KUBELET_ADDRESS–address192.168.50.53  11 KUBELET_HOSTNAME–hostname-overridek8s-master  14 KUBELET_API_SERVER–api-servershttp://192.168.50.53:8080 3启动kubelet启动自动启动docker服务 [rootk8s-master ~]# systemctl start kubelet [rootk8s-master ~]# systemctl enable kubelet Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service. 4启动kubelet-proxy [rootk8s-master ~]# systemctl start kube-proxy [rootk8s-master ~]# systemctl enable kube-proxy Created symlink from /etc/systemd/system/multi-user.target.wants/kube-proxy.service to /usr/lib/systemd/system/kube-proxy.service. 5检查node节点 [rootk8s-master ~]# kubectl get nodes NAME         STATUS    AGE k8s-master   Ready     1m 4、安装配置k8s-node1节点 1安装node [rootk8s-node1 ~]# yum -y install kubernetes node.x86_64 2node1连接k8s-master [rootk8s-node1 ~]# vim /etc/kubernetes/config  22 KUBE_MASTER–masterhttp://192.168.50.53:8080 3配置kubelet [rootk8s-node1 ~]# vim /etc/kubernetes/kubelet  5 KUBELET_ADDRESS–address192.168.50.50  11 KUBELET_HOSTNAME–hostname-overridek8s-node1  14 KUBELET_API_SERVER–api-servershttp://192.168.50.53:8080 4启动服务 [rootk8s-node1 ~]# systemctl start kubelet [rootk8s-node1 ~]# systemctl start kube-proxy [rootk8s-node1 ~]# systemctl enable kubelet Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service. [rootk8s-node1 ~]# systemctl enable kube-proxy Created symlink from /etc/systemd/system/multi-user.target.wants/kube-proxy.service to /usr/lib/systemd/system/kube-proxy.service. 5在master节点检测node节点状态 [rootk8s-master ~]# kubectl get nodes NAME         STATUS    AGE k8s-master   Ready     13m k8s-node1    Ready     1m 5、安装k8s-node2节点 1安装node [rootk8s-node2 ~]# yum -y install kubernetes node.x86_64 2node1连接k8s-master [rootk8s-node2 ~]# vim /etc/kubernetes/config 22 KUBE_MASTER–masterhttp://192.168.50.53:8080 3配置kubelet [rootk8s-node2 ~]# vim /etc/kubernetes/kubelet   5 KUBELET_ADDRESS–address192.168.50.51  11 KUBELET_HOSTNAME–hostname-overridek8s-node2  14 KUBELET_API_SERVER–api-servershttp://192.168.50.53:8080 4启动服务 [rootk8s-node2 ~]# systemctl start kubelet [rootk8s-node2 ~]# systemctl start kube-proxy [rootk8s-node2 ~]# systemctl enable kubelet Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service. [rootk8s-node2 ~]# systemctl enable kube-proxy Created symlink from /etc/systemd/system/multi-user.target.wants/kube-proxy.service to /usr/lib/systemd/system/kube-proxy.service. 5在master节点检测node节点状态 [rootk8s-master ~]# kubectl get nodes NAME         STATUS    AGE k8s-master   Ready     19m k8s-node1    Ready     7m k8s-node2    Ready     1m 6、为所有node节点配置flannel网络 1在k8s-master节点安装flannel [rootk8s-master ~]# yum -y install flannel -y [rootk8s-master ~]# vim /etc/sysconfig/flanneld  4 FLANNEL_ETCD_ENDPOINTShttp://192.168.50.53:2379 [rootk8s-master ~]# etcdctl set /atomic.io/network/config {Network:172.16.0.0/16} {Network:172.16.0.0/16}             //查看多一个网络 [rootk8s-master ~]# systemctl start flanneld    //重新启动docker服务和flannel网络一至 [rootk8s-master ~]# systemctl enable flanneld Created symlink from /etc/systemd/system/multi-user.target.wants/flanneld.service to /usr/lib/systemd/system/flanneld.service. Created symlink from /etc/systemd/system/docker.service.wants/flanneld.service to /usr/lib/systemd/system/flanneld.service. [rootk8s-master ~]# ifconfig         //查看多一个网络 flannel0: flags4305UP,POINTOPOINT,RUNNING,NOARP,MULTICAST  mtu 1472         inet 172.16.48.0  netmask 255.255.0.0  destination 172.16.48.0         inet6 fe80::4fff:f857:41f4:3894  prefixlen 64  scopeid 0x20link         unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 500  (UNSPEC)         RX packets 0  bytes 0 (0.0 B)         RX errors 0  dropped 0  overruns 0  frame 0         TX packets 3  bytes 144 (144.0 B)         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 [rootk8s-master ~]# systemctl restart docker sys[rootk8s-master ~]# systemctl enable docker Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service. [rootk8s-master ~]# ifconfig docker0: flags4099UP,BROADCAST,MULTICAST  mtu 1500         inet 172.16.48.1  netmask 255.255.255.0  broadcast 0.0.0.0         ether 02:42:87:58:2f:59  txqueuelen 0  (Ethernet)         RX packets 0  bytes 0 (0.0 B)         RX errors 0  dropped 0  overruns 0  frame 0         TX packets 0  bytes 0 (0.0 B)         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 2配置node1节点flannel网络 [rootk8s-node1 ~]# yum -y install flannel -y [rootk8s-node1 ~]# vim /etc/sysconfig/flanneld 4 FLANNEL_ETCD_ENDPOINTShttp://192.168.50.53:2379 [rootk8s-node1 ~]# systemctl start flanneld [rootk8s-node1 ~]# systemctl enable flanneld Created symlink from /etc/systemd/system/multi-user.target.wants/flanneld.service to /usr/lib/systemd/system/flanneld.service. Created symlink from /etc/systemd/system/docker.service.wants/flanneld.service to /usr/lib/systemd/system/flanneld.service. [rootk8s-node1 ~]# systemctl restart docker [rootk8s-node1 ~]# systemctl enable docker Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service. 3安装node2节点flannel网络 [rootk8s-node2 ~]# yum -y install flannel -y [rootk8s-node2 ~]# vim /etc/sysconfig/flanneld 4 FLANNEL_ETCD_ENDPOINTShttp://192.168.50.53:2379 [rootk8s-node2 ~]# systemctl start flanneld [rootk8s-node2 ~]# systemctl enable flanneld Created symlink from /etc/systemd/system/multi-user.target.wants/flanneld.service to /usr/lib/systemd/system/flanneld.service. Created symlink from /etc/systemd/system/docker.service.wants/flanneld.service to /usr/lib/systemd/system/flanneld.service. [rootk8s-node2 ~]# systemctl restart docker sy[rootk8s-node2 ~]# systemctl enable docker Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service. master查看 [rootk8s-master ~]#  kubectl get nodes NAME         STATUS    AGE k8s-master   Ready     35m k8s-node1    Ready     23m k8s-node2    Ready     17m 4测试docker容器跨宿主机通信 [rootk8s-master ~]# iptables -P FORWARD ACCEPT [rootk8s-master ~]# [rootk8s-node1 ~]# iptables -P FORWARD ACCEPT [rootk8s-node1 ~]# [rootk8s-node2 ~]# iptables -P FORWARD ACCEPT [rootk8s-node2 ~]# iptables -P FORWARD ACCEPT: 这个命令将iptables的FORWARD链的默认策略设置为ACCEPT接受。iptables是Linux上的防火墙工具它可以用来设置网络规则和过滤器。 -P FORWARD: 指定要更改的链是FORWARD链这个链控制通过Linux主机的转发流量 ACCEPT: 设置为接受允许转发流量默认情况下FORWARD链的默认策略是DROP拒绝。 #: 这是Linux命令行中用于表示注释的符号。在这个上下文中#后面的内容被视为注释不会被执行。 这意味着iptables的FORWARD链的默认策略已被成功更改为接受ACCEPT允许通过Linux主机的转发流量。 7、配置docker开启加载防火墙规则允许转发数据 1配置k8s-master节点 [rootk8s-master ~]# vim /usr/lib/systemd/system/docker.service 1 [Unit]   2 DescriptionDocker Application Container Engine   3 Documentationhttp://docs.docker.com   4 Afternetwork.target   5 Wantsdocker-storage-setup.service   6 Requiresdocker-cleanup.timer   7   8 [Service]   9 Typenotify  10 NotifyAccessmain  11 EnvironmentFile-/run/containers/registries.conf  12 EnvironmentFile-/etc/sysconfig/docker  13 EnvironmentFile-/etc/sysconfig/docker-storage  14 EnvironmentFile-/etc/sysconfig/docker-network  15 EnvironmentGOTRACEBACKcrash  16 EnvironmentDOCKER_HTTP_HOST_COMPAT1  17 EnvironmentPATH/usr/libexec/docker:/usr/bin:/usr/sbin  18 ExecStartPort/usr/sbin/iptables -P FORWARD ACCEPT       添加这一行  19 ExecStart/usr/bin/dockerd-current \ [rootk8s-master ~]# systemctl daemon-reload [rootk8s-master ~]# systemctl restart docker 2配置k8s-node1节点 [rootk8s-node1 ~]#  vim /usr/lib/systemd/system/docker.service  18 ExecStartPort/usr/sbin/iptables -P FORWARD ACCEPT [rootk8s-node1 ~]# systemctl daemon-reload [rootk8s-node1 ~]# systemctl restart docker 3配置k8s-node2节点 [rootk8s-node2 ~]# vim /usr/lib/systemd/system/docker.service  18 ExecStartPort/usr/sbin/iptables -P FORWARD ACCEPT [rootk8s-node2 ~]# systemctl daemon-reload [rootk8s-node2 ~]# systemctl restart docker