一、主机清单 192.168.80.100 localhost7A.localdomain harbor CentOS 7.7 192.168.80.110 localhost7B.localdomain keepalived haproxy ansible 192.168.80.222 CentOS 7.7 192.168.80.120 localhost7C.localdomain master 192.168.80.222 CentOS 7.7 192.168.80.130 localhost7D.localdomain master 192.168.80.222 CentOS 7.7 192.168.80.140 localhost7E.localdomain master 192.168.80.222 CentOS 7.7 192.168.80.150 localhost7F.localdomain node1 CentOS 7.7 192.168.80.160 localhost7G.localdomain node2 CentOS 7.7 192.168.80.170 localhost7H.localdomain node3 CentOS 7.7 192.168.80.180 localhost7I.localdomain etcd CentOS 7.7 192.168.80.190 localhost7J.localdomain etcd CentOS 7.7 192.168.80.200 localhost7H.localdomain etcd CentOS 7.7 二、所有服务器时间同步,设置YUM源 ntpdate time1.aliyun.com && hwclock -w 所有服务器安装python环境,ansible依赖。 # apt update # apt-get install python2.7 –y # ln -s /usr/bin/python2.7 /usr/bin/python 源安装包,后续添加各节点需要依赖 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo 三、部署 harbor 设置HTTPS 登录 harbor.zzhz.com 1.同步时间服务 并关闭防火墙和selinux ntpdate time1.aliyun.com && hwclock -w 2.下载YUM源 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo wget -O /etc/yum.repos.d/docker-ce.repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo 3.安装docker docker-compose yum list docker-ce --showduplicates yum install docker-ce-19.03.15-3.el7 docker-ce-cli-19.03.15-3.el7 yum install docker-compose systemctl enable docker systemctl start docker 4.下载harbor 解压 https://github.com/goharbor/harbor/releases/download/v1.7.6/harbor-offline-installer-v1.7.6 tar xvf harbor-offline-installer-v1.7.6.tgz ln -sv /usr/local/src/harbor /usr/local/ cd /usr/local/harbor/ 5.生成证书 # mkdir /usr/local/harbor/certs/ -p # cd /usr/local/harbor/certs/ # openssl genrsa -out harbor-ca.key #生成私有key # openssl req -x509 -new -nodes -key harbor-ca.key -subj "/CN=harbor.zzhz.com" -days 7120 -out harbor-ca.crt #签证 6.设置配置文件 # vim harbor.cfg hostname = harbor.magedu.net ui_url_protocol = https ssl_cert = /usr/local/harbor/certs/harbor-ca.crt ssl_cert_key = /usr/local/harbor/certs/harbor-ca.key harbor_admin_password = Harbor12345 # ./install.sh 7.在ansible主机创建文件 # mkdir /etc/docker/certs.d/harbor.zzhz.com -p 8.复制文件到ansible # scp /usr/local/harbor/certs/harbor-ca.crt 192.168.80.110:/etc/docker/certs.d/harbor.zzhz.com/harbor-ca.crt 9./etc/hosts解析登录测试 # docker login harbor.zzhz.com Username: admin Password: WARNING! Your password will be stored unencrypted in /root/.docker/config.json. Configure a credential helper to remove this warning. See https://docs.docker.com/engine/reference/commandline/login/#credentials-store Login Succeeded
三、安装 keepalive haproxy ansible 1.同步时间服务 ntpdate time1.aliyun.com && hwclock -w 开启路由转发 echo 1 > /proc/sys/net/ipv4/ip_forward 2.下载YUM源 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo 3.安装软件 yum install keepalived haproxy 4.配置keepalived [root@localhost7B ~]# cat /etc/keepalived/keepalived.conf global_defs { notification_email { root@localhost } notification_email_from root@localhost smtp_server 127.0.0.1 smtp_connect_timeout 30 router_id localhost7B vrrp_iptables vrrp_garp_interval 0 vrrp_gna_interval 0 vrrp_mcast_group4 224.0.0.18 } vrrp_instance zzhz { state MASTER interface eth0 virtual_router_id 51 priority 95 advert_int 2 authentication { auth_type PASS auth_pass centos } virtual_ipaddress { 192.168.80.222/24 dev eth0 label eth0:1 } } 5.配置haproxy [root@localhost7B ~]# cat /etc/haproxy/haproxy.cfg global log 127.0.0.1 local2 chroot /var/lib/haproxy pidfile /var/run/haproxy.pid maxconn 4000 user haproxy group haproxy daemon stats socket /var/lib/haproxy/stats defaults mode http option httplog option dontlognull option http-server-close option redispatch retries 3 timeout http-request 10s timeout queue 1m timeout connect 10s timeout client 1m timeout server 1m timeout http-keep-alive 10s timeout check 10s maxconn 3000 listen stats mode http bind 0.0.0.0:9999 stats enable log global stats uri /haproxy-status stats auth haadmin:12345 listen k8s-6443 bind 192.168.80.222:6443 mode tcp balance roundrobin server 192.168.80.120 192.168.80.120:6443 check inter 2s fall 3 rise 5 server 192.168.80.130 192.168.80.130:6443 check inter 2s fall 3 rise 5 server 192.168.80.140 192.168.80.140:6443 check inter 2s fall 3 rise 5 6.启动服务 systemctl enable keepalived.service haproxy.service systemctl start keepalived.service systemctl status keepalived.service systemctl start haproxy.service systemctl status haproxy.service 四、在ansible主机 1.在ansible控制端配置免密码登录,安装ansible python sshpass git [root@localhost7B ~]#yum install python2.7 [root@localhost7B ~]#ln -s /usr/bin/python2.7 /usr/bin/python 2.#sshpass同步公钥到各k8s服务器的工具 [root@localhost7B ~]# yum install ansible sshpass [root@localhost7B ~]# ssh-keygen #生成密钥对 3..设置hosts /etc/hosts解析 192.168.80.100 localhost7A.localdomain harbor.zzhz.com 192.168.80.110 localhost7B.localdomain 192.168.80.120 localhost7C.localdomain 192.168.80.130 localhost7D.localdomain 192.168.80.140 localhost7E.localdomain 192.168.80.150 localhost7F.localdomain 192.168.80.160 localhost7G.localdomain 192.168.80.170 localhost7H.localdomain 192.168.80.180 localhost7I.localdomain 192.168.80.190 localhost7J.localdomain 192.168.80.200 localhost7J.localdomain 3.复制 证书 公钥 hosts DNS文件, #!/bin/bash #目标主机列表 IP="192.168.80.100 192.168.80.110 192.168.80.120 192.168.80.130 192.168.80.140 192.168.80.150 192.168.80.160 192.168.80.170 192.168.80.180 192.168.80.190 192.168.80.200 " for node in ${IP};do sshpass -p password1! ssh-copy-id ${node} -o StrictHostKeyChecking=no if [ $? -eq 0 ];then echo "${node} 秘钥copy完成" echo "${node} 秘钥copy完成,准备环境初始化....." ssh ${node} "mkdir /etc/docker/certs.d/harbor.zzhz.com -p" echo "Harbor 证书目录创建成功!" scp /etc/docker/certs.d/harbor.zzhz.com/harbor-ca.crt ${node}:/etc/docker/certs.d/harbor.zzhz.com/harbor-ca.crt echo "Harbor 证书拷贝成功!" #scp -r /root/.docker ${node}:/root/ #echo "Harbor 认证文件拷贝完成!" scp /etc/hosts ${node}:/etc/hosts echo "host 文件拷贝完成" scp -r /etc/resolv.conf ${node}:/etc/ else echo "${node} 秘钥copy失败" fi done 4.下载工具脚本easzup,脚本中定义各软件的版本。 https://github.com/easzlab/kubeasz/releases/download/2.2.0/easzup 编辑脚本内容。定义软件版本 cat easzup # default version, can be overridden by cmd line options export DOCKER_VER=19.03.8 #这个 export KUBEASZ_VER=2.2.0 export K8S_BIN_VER=v1.17.4 #这个 export EXT_BIN_VER=0.4.0 export SYS_PKG_VER=0.3.3 chmod +x ./easzup ./easzup -D #开始下载 ll /etc/ansible/down/ #下载完成目录: rm -rf /etc/ansible/* #删除ansible已有文件 mv kubeasz/* /etc/ansible/
五、安装k8s 1.必要配置: cd /etc/ansible && cp example/hosts.multi-node hosts, 然后实际情况修改此hosts文件 2.修改文件 # 'etcd' cluster should have odd member(s) (1,3,5,...) # variable 'NODE_NAME' is the distinct name of a member in 'etcd' cluster # etcd集群请提供如下NODE_NAME,注意etcd集群必须是1,3,5,7...奇数个节点 [etcd] 192.168.80.170 NODE_NAME=etcd1 192.168.80.180 NODE_NAME=etcd2 #192.168.80.190 NODE_NAME=etcd3 # master node(s) [kube-master] 192.168.80.120 NEW_MASTER=yes 192.168.80.130 #192.168.80.140 # work node(s) [kube-node] 192.168.80.150 NEW_NODE=yes 192.168.80.160 #192.168.80.170 # [optional] harbor server, a private docker registry # 'NEW_INSTALL': 'yes' to install a harbor server; 'no' to integrate with existed one # 'SELF_SIGNED_CERT': 'no' you need put files of certificates named harbor.pem and harbor-key.pem in directory 'down' [harbor] #192.168.80.8 HARBOR_DOMAIN="harbor.yourdomain.com" NEW_INSTALL=no SELF_SIGNED_CERT=yes # [optional] loadbalance for accessing k8s from outside #负载均衡(目前已支持多于2节点,一般2节点就够了) 安装 haproxy+keepalived [ex-lb] 192.168.80.110 LB_ROLE=master EX_APISERVER_VIP=192.168.80.222 EX_APISERVER_PORT=6443 #192.168.80.211 LB_ROLE=backup EX_APISERVER_VIP=192.168.80.188 EX_APISERVER_PORT=6443 # [optional] ntp server for the cluster [chrony] #192.168.80.1 [all:vars] # --------- Main Variables --------------- # Cluster container-runtime supported: docker, containerd CONTAINER_RUNTIME="docker" # 集群网络插件,目前支持calico, flannel, kube-router, cilium # Network plugins supported: calico, flannel, kube-router, cilium, kube-ovn CLUSTER_NETWORK="flannel" kube proxy的服务代理模式:“iptables”或“IPV” # Service proxy mode of kube-proxy: 'iptables' or 'ipvs' PROXY_MODE="ipvs" # 服务网段 (Service CIDR),注意不要与内网已有网段冲突 # K8S Service CIDR, not overlap with node(host) networking SERVICE_CIDR="172.28.0.0/16" # POD 网段 (Cluster CIDR),注意不要与内网已有网段冲突 # Cluster CIDR (Pod CIDR), not overlap with node(host) networking CLUSTER_CIDR="10.20.0.0/16" # 服务端口范围 # NodePort Range NODE_PORT_RANGE="30000-60000" #集群 DNS 域名 # Cluster DNS Domain CLUSTER_DNS_DOMAIN="magedu.local." #默认二进制文件目录 # -------- Additional Variables (don't change the default value right now) --- # Binaries Directory bin_dir="/usr/bin" #证书目录 # CA and other components cert/key Directory ca_dir="/etc/kubernetes/ssl" #部署目录,即 ansible 工作目录,建议不要修改 # Deploy Directory (kubeasz workspace) base_dir="/etc/ansible" 3.安装各节点 #环境初始化 ansible-playbook 01.prepare.yml #部署etcd集群 ansible-playbook 02.etcd.yml #部署docker ansible-playbook 03.docker.yml #部署master ansible-playbook 04.kube-master.yml #部署node ansible-playbook 05.kube-node.yml #部署网络服务flannel,实际中这步没操作。 ansible-playbook 06.network.yml 增加 etcd 节点: $ easzctl add-etcd 192.168.80.140(注意:增加 etcd 还需要根据提示输入集群内唯一的 NODE_NAME,在host文件定义) 增加 master节点: $ easzctl add-master 192.168.80.170 增加 node 节点: $ easzctl add-node 192.168.80.200 4.#创建pod测试夸主机网络通信是否正常(域名无法ping通,是DNS没有设置) kubectl run net-test1 --image=alpine --replicas=4 sleep 360000 六、k8s 升级小版本 方式一:下载二进制k8s版本解压, stop节点服务,复制server/bin/5个配置文件到/usr/bin/下,重启服务。 方式一:下载二进制k8s版本解压,复制server/bin/kube*开头的二进制文件到/etc/kubeasz/bin,控制端执行easzctl upgrade。 节点版本升级说明 node:kubelet kube-proxy kubectl master: kube-apiserver kube-controller-manager kubelet kube-proxy kube-scheduler kubectl [root@localhost7F ~]# ps aux | grep kube [root@localhost7F ~]# systemctl stop kube-apiserver kube-controller-manager kubelet kube-proxy kube-scheduler
标签:etc,二进制,192.168,harbor,ansible,docker,k8s,com From: https://www.cnblogs.com/Yuanbangchen/p/17219073.html