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| [root@master install]# cat preENV.sh
#!/bin/bash
# 关闭防火墙
systemctl stop firewalld && systemctl disable firewalld
# 关闭 SELINUX
setenforce 0 && sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
# 关闭 Swap
swapoff -a && sed -i "s/\/dev\/mapper\/centos-swap/\#\/dev\/mapper\/centos-swap/g" /etc/fstab
[root@master ~]# vim /etc/sysctl.d/k8s.conf
[root@master ~]# cat /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
[root@master ~]# modprobe br_netfilter && sysctl -p /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
[root@master ~]# wget -O /etc/yum.repos.d/CentOS7-Aliyun.repo http://mirrors.aliyun.com/repo/Centos-7.repo
--2019-06-30 04:26:32-- http://mirrors.aliyun.com/repo/Centos-7.repo
Resolving mirrors.aliyun.com (mirrors.aliyun.com)... 116.177.250.229, 116.177.250.233, 60.28.226.4, ...
Connecting to mirrors.aliyun.com (mirrors.aliyun.com)|116.177.250.229|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2523 (2.5K) [application/octet-stream]
Saving to: ‘/etc/yum.repos.d/CentOS7-Aliyun.repo’
100%[============================================================================>] 2,523 --.-K/s in 0s
2019-06-30 04:26:32 (296 MB/s) - ‘/etc/yum.repos.d/CentOS7-Aliyun.repo’ saved [2523/2523]
root@master ~]# sudo yum install -y yum-utils \
device-mapper-persistent-data \
lvm2
[root@master ~]# sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
[root@master ~]# yum install docker-ce -y
[root@master ~]# systemctl enable docker && systemctl start docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
[root@master ~]# mkdir -p /etc/docker
[root@master ~]# sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://gmjjwogo.mirror.aliyuncs.com"],
"exec-opts": ["native.cgroupdriver=systemd"]
}
EOF
{
"registry-mirrors": ["https://gmjjwogo.mirror.aliyuncs.com"],
"exec-opts": ["native.cgroupdriver=systemd"]
}
[root@master ~]# sudo systemctl daemon-reload && sudo systemctl restart docker
[root@master ~]# docker info |grep Cgroup
Cgroup Driver: systemd
[root@master ~]# # kube-proxy 开启 ipvs 的前置条件
[root@master ~]# 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
[root@master ~]# chmod 755 /etc/sysconfig/modules/ipvs.modules && bash /etc/sysconfig/modules/ipvs.modules && lsmod | grep -e ip_vs -e nf_conntrack_ipv4
ip_vs_sh 12688 0
ip_vs_wrr 12697 0
ip_vs_rr 12600 0
ip_vs 145497 6 ip_vs_rr,ip_vs_sh,ip_vs_wrr
nf_conntrack_ipv4 15053 2
nf_defrag_ipv4 12729 1 nf_conntrack_ipv4
nf_conntrack 133095 7 ip_vs,nf_nat,nf_nat_ipv4,xt_conntrack,nf_nat_masquerade_ipv4,nf_conntrack_netlink,nf_conntrack_ipv4
libcrc32c 12644 4 xfs,ip_vs,nf_nat,nf_conntrack
[root@master ~]# # 安装 kubernetes 初始化工具
[root@master ~]# # 使用阿里云的 kubernetes 源
[root@master ~]# cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[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
[root@master ~]# # 安装 k8s 工具 1.15 版本
[root@master ~]# yum install -y kubelet kubeadm kubectl
Installed:
kubeadm.x86_64 0:1.15.0-0 kubectl.x86_64 0:1.15.0-0 kubelet.x86_64 0:1.15.0-0
Dependency Installed:
conntrack-tools.x86_64 0:1.4.4-4.el7 cri-tools.x86_64 0:1.12.0-0
kubernetes-cni.x86_64 0:0.7.5-0 libnetfilter_cthelper.x86_64 0:1.0.0-9.el7
libnetfilter_cttimeout.x86_64 0:1.0.0-6.el7 libnetfilter_queue.x86_64 0:1.0.2-2.el7_2
socat.x86_64 0:1.7.3.2-2.el7
Complete!
[root@master ~]# # 启动 kubelet
[root@master ~]# systemctl enable kubelet && systemctl start kubelet
Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /usr/lib/systemd/system/kubelet.service.
[root@master ~]#
|
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