Kubernetes 集群部署 ——二进制包

先准备好两个脚本文件： 1、vim etcd-cert.sh ##定义ca证书： cat > ca-config.json <<EOF { "signing": { "default": { "expiry": "87600h" }, "profiles": { "www": { "expiry": "87600h", "usages": [ "signing", "key encipherment", "server auth", "client auth" ] } } } } EOF ##实现证书签名 cat > ca-csr.json <<EOF { "CN": "etcd CA", "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "L": "Beijing", "ST": "Beijing" } ] } EOF cfssl gencert -initca ca-csr.json | cfssljson -bare ca - #----------------------- ##指定etcd三个节点之间的通信验证 cat > server-csr.json <<EOF { "CN": "etcd", "hosts": [ "192.168.220.131", "192.168.220.140", "192.168.220.136" ], "key": { "algo": "rsa", "size": 2048 }, "names": [ { "C": "CN", "L": "BeiJing", "ST": "BeiJing" } ] } EOF ##生成 ETCD证书 server-key.pem 和 server.pem cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=www server-csr.json | cfssljson -bare server 2、 vim etcd.sh #!/bin/bash # example: ./etcd.sh etcd01 192.168.1.10 etcd02=https://192.168.1.11:2380,etcd03=https://192.168.1.12:2380 ETCD_NAME=$1 ETCD_IP=$2 ETCD_CLUSTER=$3 WORK_DIR=/opt/etcd cat <<EOF >$WORK_DIR/cfg/etcd #[Member] ETCD_NAME="${ETCD_NAME}" ETCD_DATA_DIR="/var/lib/etcd/default.etcd" ETCD_LISTEN_PEER_URLS="https://${ETCD_IP}:2380" ETCD_LISTEN_CLIENT_URLS="https://${ETCD_IP}:2379" #[Clustering] ETCD_INITIAL_ADVERTISE_PEER_URLS="https://${ETCD_IP}:2380" ETCD_ADVERTISE_CLIENT_URLS="https://${ETCD_IP}:2379" ETCD_INITIAL_CLUSTER="etcd01=https://${ETCD_IP}:2380,${ETCD_CLUSTER}" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" ETCD_INITIAL_CLUSTER_STATE="new" EOF cat <<EOF >/usr/lib/systemd/system/etcd.service [Unit] Description=Etcd Server After=network.target After=network-online.target Wants=network-online.target [Service] Type=notify EnvironmentFile=${WORK_DIR}/cfg/etcd ExecStart=${WORK_DIR}/bin/etcd \ --name=\${ETCD_NAME} \ --data-dir=\${ETCD_DATA_DIR} \ --listen-peer-urls=\${ETCD_LISTEN_PEER_URLS} \ --listen-client-urls=\${ETCD_LISTEN_CLIENT_URLS},http://127.0.0.1:2379 \ --advertise-client-urls=\${ETCD_ADVERTISE_CLIENT_URLS} \ --initial-advertise-peer-urls=\${ETCD_INITIAL_ADVERTISE_PEER_URLS} \ --initial-cluster=\${ETCD_INITIAL_CLUSTER} \ --initial-cluster-token=\${ETCD_INITIAL_CLUSTER_TOKEN} \ --initial-cluster-state=new \ --cert-file=${WORK_DIR}/ssl/server.pem \ --key-file=${WORK_DIR}/ssl/server-key.pem \ --peer-cert-file=${WORK_DIR}/ssl/server.pem \ --peer-key-file=${WORK_DIR}/ssl/server-key.pem \ --trusted-ca-file=${WORK_DIR}/ssl/ca.pem \ --peer-trusted-ca-file=${WORK_DIR}/ssl/ca.pem Restart=on-failure LimitNOFILE=65536 [Install] WantedBy=multi-user.target EOF systemctl daemon-reload systemctl enable etcd systemctl restart etcd

[root@master ~]# mkdir k8s [root@master ~]# cd k8s/ [root@master k8s]# ls etcd-cert.sh etcd.sh [root@master k8s]# mkdir etcd-cert [root@master k8s]# mv etcd-cert.sh etcd-cert [root@master k8s]# ls etcd-cert etcd.sh [root@master k8s]# vim cfssl.sh curl -L https://pkg.cfssl.org/R1.2/cfssl_linux-amd64 -o /usr/local/bin/cfssl curl -L https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64 -o /usr/local/bin/cfssljson curl -L https://pkg.cfssl.org/R1.2/cfssl-certinfo_linux-amd64 -o /usr/local/bin/cfssl-certinfo chmod +x /usr/local/bin/cfssl /usr/local/bin/cfssljson /usr/local/bin/cfssl-certinfo //下载cfssl官方包： [root@master k8s]# bash cfssl.sh [root@master k8s]# ls /usr/local/bin/ cfssl cfssl-certinfo cfssljson //cfssl：生成证书工具； cfssl-certinfo：查看证书信息； cfssljson：通过传入json文件生成证书

[root@master etcd-cert]# mv *.tar.gz ../ [root@master k8s]# ls cfssl.sh etcd-cert etcd.sh etcd-v3.3.10-linux-amd64.tar.gz flannel-v0.10.0-linux-amd64.tar.gz kubernetes-server-linux-amd64.tar.gz [root@master k8s]# tar zvxf etcd-v3.3.10-linux-amd64.tar.gz //解压 [root@master k8s]# ls etcd-v3.3.10-linux-amd64 Documentation etcd etcdctl README-etcdctl.md README.md READMEv2-etcdctl.md //配置文件、命令文件、证书： [root@master k8s]# mkdir /opt/etcd/{cfg,bin,ssl} -p [root@master k8s]# mv etcd-v3.3.10-linux-amd64/etcd etcd-v3.3.10-linux-amd64/etcdctl /opt/etcd/bin/ //证书拷贝： [root@master k8s]# cp etcd-cert/*.pem /opt/etcd/ssl/ //进入卡住状态等待其他节点加入： [root@master k8s]# bash etcd.sh etcd01 192.168.220.131 etcd02=https://192.168.220.140:2380,etcd03=https://192.168.220.136:2380 //此时，我们可以再开启一个终端，就会发现 etcd进程已经开启： [root@master ~]# ps -ef | grep etcd

//将证书拷贝到其他节点（提高效率，无需在配置了） [root@master k8s]# scp -r /opt/etcd/ root@192.168.220.140:/opt/ [root@master k8s]# scp -r /opt/etcd/ root@192.168.220.136:/opt/ //启动脚本拷贝其他节点： [root@master k8s]# scp /usr/lib/systemd/system/etcd.service root@192.168.220.140:/usr/lib/systemd/system/ [root@master k8s]# scp /usr/lib/systemd/system/etcd.service root@192.168.220.136:/usr/lib/systemd/system/

1、修改 node01： [root@node01 ~]# vim /opt/etcd/cfg/etcd #[Member] ETCD_NAME="etcd02" ETCD_DATA_DIR="/var/lib/etcd/default.etcd" ETCD_LISTEN_PEER_URLS="https://192.168.220.140:2380" ETCD_LISTEN_CLIENT_URLS="https://192.168.220.140:2379" #[Clustering] ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.220.140:2380" ETCD_ADVERTISE_CLIENT_URLS="https://192.168.220.140:2379" ETCD_INITIAL_CLUSTER="etcd01=https://192.168.220.131:2380,etcd02=https://192.168.220.140:2380,etcd03=https://192.168.220.136:2380" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" ETCD_INITIAL_CLUSTER_STATE="new" //启动： [root@node01 ~]# systemctl start etcd.service [root@node01 ~]# systemctl status etcd.service 2、修改 node02： [root@node02 ~]# vim /opt/etcd/cfg/etcd #[Member] ETCD_NAME="etcd03" ETCD_DATA_DIR="/var/lib/etcd/default.etcd" ETCD_LISTEN_PEER_URLS="https://192.168.220.136:2380" ETCD_LISTEN_CLIENT_URLS="https://192.168.220.136:2379" #[Clustering] ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.220.136:2380" ETCD_ADVERTISE_CLIENT_URLS="https://192.168.220.136:2379" ETCD_INITIAL_CLUSTER="etcd01=https://192.168.220.131:2380,etcd02=https://192.168.220.140:2380,etcd03=https://192.168.220.136:2380" ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster" ETCD_INITIAL_CLUSTER_STATE="new" //启动： [root@node02 ~]# systemctl start etcd.service [root@node02 ~]# systemctl status etcd.service

[root@master etcd-cert]# /opt/etcd/bin/etcdctl --ca-file=ca.pem --cert-file=server.pem --key-file=server-key.pem --endpoints="https://192.168.220.131:2379,https://192.168.220.140:2379,https://192.168.220.136:2379" cluster-health

第一步：部署 master

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