1 sh network.sh
2 hostnamectl set-hostname k8s-node01
3 hostname
4 ifconfig f
5 ifconfig
6 curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
7 sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
8 yum -y makecahe
9 yummakecahe
10 yum makecache
11 dhclient
12 yum -y install vimm
13 yum -y install vim
14 yum -y install net-tools
15 ifconfig
16 systemctl stop firewalld && systemctl disable firewalld
17 yum -y install iptables-services
18 systemctl start iptables
19 systemctl status iptables
20 iptables -F
21 service iptables save
22 swapoff -a
23 sed -i 's/.*swap.*/#&/' /etc/fstab
24 setenforce 0
25 sed -i 's/^SELINUX=.*/SELINUX=disabled/' /etc/selinux/config
26 cat > kubernetes.conf << EOF
27 net.bridge.bridge-nf-call-iptables=1
28 net.bridge.bridge-nf-call-ip6tables=1
29 net.ipv4.ip_forward=1
30 net.ipv4.tcp_tw_recycle=0
31 vm.swappiness=0
32 vm.overcommit_memory=1
33 vm.panic_on_oom=0
34 fs.inotify.max_user_instances=8192
35 fs.inotify.max_user_watches=1048576
36 fs.file-max=52706963
37 fs.nr_open=52706963
38 net.ipv6.conf.all.disable_ipv6=1
39 net.netfilter.nf_conntrack_max=2310720
40 EOF
41 modprobe br_netfilter
42 cp kubernetes.conf /etc/sysctl.d/kubernetes.conf
43 sysctl -p /etc/sysctl.d/kubernetes.conf
44
45 mkdir /var/log/journal # 持久化保存日志的目录
46 mkdir /etc/systemd/journald.conf.d
47 cat > /etc/systemd/journald.conf.d/99-prophet.conf <<EOF
48 [Journal]
49 Storage=persistent
50 Compress=yes
51 SyncIntervalSec=5m
52 RateLimitInterval=30s
53 RateLimitBurst=1000
54 SystemMaxUse=10G
55 SystemMaxFileSize=200M
56 MaxRetentionSec=2week
57 ForwardToSyslog=no
58 EOF
59 systemctl restart systemd-journald
60 rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm
61 yum --enablerepo=elrepo-kernel install -y kernel-lt
62 grub2-set-default "CentOS Linux (4.4.182-1.el7.elrepo.x86_64) 7 (Core)"
63 reboot
64 yum makecache
65 uname -r
66 rpm -q kernel
67 yum -y remove kernel-3.10.0-1062.el7.x86_64
68 cat > /etc/sysconfig/modules/ipvs.modules << EOF
modprobe -- ip_vs
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- ip_vs_sh
modprobe -- nf_conntrack_ipv4
EOF
69
70 chmod 755 /etc/sysconfig/modules/ipvs.modules && bash /etc/sysconfig/modules/ipvs.modules && lsmod | grep -e ip_vs -e nf_conntrack_ipv4
71 yum -y install yum-utils device-mapper-persistent-data lvm2
72 yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
73
74 yum -y update && yum -y install docker-ce
75 mkdir /etc/docker
76 cat > /etc/docker/daemon.json << EOF
{
"exec-opts":["native.cgroupdriver=systemd"],
"log-driver":"json-file",
"log-opts":{
"max-size":"100m"
}
}
EOF
77 systemctl start docker
78 systemctl status docker
79 systemctl enable docker
80 systemctl status docker
81 systemctl enable iptables
82 mkdir -p /etc/systemd/system/docker.service.d
83 systemctl daemon-reload && systemctl restart docker && systemctl enable docker
84 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
85 yum -y install kubeadm-1.15.1 kubectl-1.15.1 kubelet-1.15.1
86 systemctl enable kubelet.service
87 kubeadm config print init-defaults > kubeadm-config.yaml
88 ls
89 vim kubeadm-config.yaml
90 cat kubeadm-config.yaml | grep image
91 vim kubeadm-config.yaml
92 kubeadm config images list
93 history