K8s 安装
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环境准备
host
192.168.0.158 np0 192.168.0.229 np1 192.168.0.249 np2 192.168.0.148 np3
设置网桥参数
cat > /etc/sysctl.d/k8s.conf << EOF net.bridge.bridge-nf-call-ip6tables = 1 net.bridge.bridge-nf-call-iptables = 1 net.ipv4.ip_forward = 1 EOF sysctl --system
ip_vs
加载 ip_vs 内核模块。kube-proxy 通过采用 iptables + ipset + ipvs 的方式实现为符合条件的 Pod 提供负载均衡。
modprobe ip_vs modprobe ip_vs_rr modprobe ip_vs_wrr modprobe ip_vs_sh modprobe nf_conntrack_ipv4
启动加载
cat > /etc/modules-load.d/ip_vs.conf << EOF ip_vs ip_vs_rr ip_vs_wrr ip_vs_sh nf_conntrack_ipv4 EOF
kubernetes
repo
cat > /etc/yum.repos.d/kubernetes.repo << EOF [kubernetes] name=Kubernetes baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/ enabled=1 gpgcheck=1 repo_gpgcheck=1 gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg EOF
kubelet kubeadm kubectl
# yum list kubelet --showduplicates yum install kubelet kubeadm kubectl systemctl enable kubelet