1.
etcdctl --ca-file=/etc/etcd/ssl/ca.pem --cert-file=/etc/etcd/ssl/server.pem --key-file=/etc/etcd/ssl/server-key.pem --endpoints="https://172.18.6.39:2379,https://172.18.6.40:2379,https://172.18.6.41:2379" set /coreos.com/network/config ‘{ "Network": "172.31.0.0/16", "Backend": {"Type": "vxlan"}}‘2.生成flannel启动文件
cat > /usr/lib/systemd/system/flanneld.service <<EOF[Unit]Description=Flanneld overlay address etcd agentAfter=network-online.target network.targetBefore=docker.service[Service]Type=notifyEnvironmentFile=/etc/kubernetes/flanneldExecStart=/usr/bin/flanneld --ip-masq \$FLANNEL_OPTIONSExecStartPost=/usr/bin/mk-docker-opts.sh -k DOCKER_NETWORK_OPTIONS -d /run/flannel/subnet.envRestart=on-failure[Install]WantedBy=multi-user.targetEOF
3.生成flannel配置文件
cat >/etc/kubernetes/flanneld<<EOFFLANNEL_OPTIONS="--etcd-endpoints=https://172.18.6.39:2379,https://172.18.6.40:2379,https://172.18.6.41:2379 -etcd-cafile=/etc/etcd/ssl/ca.pem -etcd-certfile=/etc/etcd/ssl/server.pem -etcd-keyfile=/etc/etcd/ssl/server-key.pem"EOF
4.启动flannel
5.修改docker配置文件
（1）修改启动文件
vim /usr/lib/systemd/system/docker.service#Add envionment#EnvironmentFile=/run/flannel/subnet.env #添加ExecStart=/usr/bin/dockerd --graph=/opt/docker $DOCKER_NETWORK_OPTIONS #修改
（2）修改配置文件
cd /etc/docker/cp daemon.json daemon.json_bak
systemctl daemon-reload
systemctl restart docker
Kubernetes_V1.10集群部署-master-部署flanne网络
原文地址：https://www.cnblogs.com/dingkailinux/p/9268436.html