kube-proxy开启ipvs的前置条件
modprobe br_netfilter
cat > /etc/sysconfig/modules/ipvs.modules <<EOF
#!/bin/bash
modprobe -- ip_vs
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- ip_vs_sh
modprobe -- nf_conntrack_ipv4
EOF
chmod 755 /etc/sysconfig/modules/ipvs.modules &&
bash /etc/sysconfig/modules/ipvs.modules &&
lsmod | grep -e ip_vs -e nf_conntrack_ipv4
安装 Docker 软件
yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager \--add-repo \ http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum update -y && yum install -y docker-ce
## 创建 /etc/docker 目录
mkdir /etc/docker
# 配置 daemon.
cat > /etc/docker/daemon.json <<EOF
{
"exec-opts": ["native.cgroupdriver=systemd"],
"log-driver": "json-file",
"log-opts": {
"max-size": "100m"
}
}
EOF
mkdir-p /etc/systemd/system/docker.service.d
# 重启docker服务
systemctl daemon-reload && systemctl restart docker && systemctl enable docker
安装 Kubeadm (主从配置)
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=http://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=http://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg
http://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
yum -y install kubeadm-1.15.1 kubectl-1.15.1 kubelet-1.15.1
systemctl enable kubelet.service
初始化主节点
kubeadm config print init-defaults > kubeadm-config.yaml
localAPIEndpoint:
advertiseAddress: 192.168.66.10
kubernetesVersion: v1.15.1
networking:
podSubnet: "10.244.0.0/16"
serviceSubnet: 10.96.0.0/12
---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
kind: KubeProxyConfiguration
featureGates:
SupportIPVSProxyMode: true
mode: ipvs
kubeadm init --config=kubeadm-config.yaml --experimental-upload-certs | tee kubeadm-init.log
加入主节点以及其余工作节点
执行安装日志中的加入命令即可
部署网络
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml