hostnamectl set-hostname k8s-master01
vim /etc/hosts
cat /etc/hosts
yum -y install conntrack ntpdate ntp ipvsadm ipset jq iptables curl sysstat libseccomp wget vim net-tools git
systemctl stop firewalld && systemctl disable firewalld
yum -y install lrzsz
#rz上传163源
yum -y install iptables-services
systemctl start iptables
systemctl enable iptables
iptables -F
service iptables save
swapoff -a
sed -i 's/.*swap.*/#&/' /etc/fstab
setenforce 0
sed -i 's/^SELINUX=.*/SELINUX=disabled/' /etc/selinux/config
cat > kubernetes.conf << EOF
net.bridge.bridge-nf-call-iptables=1
net.bridge.bridge-nf-call-ip6tables=1
net.ipv4.ip_forward=1
net.ipv4.tcp_tw_recycle=0
vm.swappiness=0
vm.overcommit_memory=1
vm.panic_on_oom=0
fs.inotify.max_user_instances=8192
fs.inotify.max_user_watches=1048576
fs.file-max=52706963
fs.nr_open=52706963
net.ipv6.conf.all.disable_ipv6=1
net.netfilter.nf_conntrack_max=2310720
EOF
modprobe br_netfilter
cp kubernetes.conf /etc/sysctl.d/kubernetes.conf
sysctl -p /etc/sysctl.d/kubernetes.conf
mkdir /var/log/journal # 持久化保存日志的目录
mkdir /etc/systemd/journald.conf.d
cat > /etc/systemd/journald.conf.d/99-prophet.conf <<EOF
[Journal]
#持久化保存到磁盘
Storage=persistent
# 压缩历史日志
Compress=yes
SyncIntervalSec=5m
RateLimitInterval=30s
RateLimitBurst=1000
# 最大占用空间10G
SystemMaxUse=10G
# 单日志文件最大200M
SystemMaxFileSize=200M
# 日志保存时间 2 周
MaxRetentionSec=2week
# 不将日志转发到 syslog
ForwardToSyslog=no
EOF
systemctl restart systemd-journald
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm
yum --enablerepo=elrepo-kernel install -y kernel-lt
grub2-set-default "CentOS Linux (4.4.182-1.el7.elrepo.x86_64) 7 (Core)"
reboot
uname -r
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
chmod 755 /etc/sysconfig/modules/ipvs.modules && bash /etc/sysconfig/modules/ipvs.modules && lsmod | grep -e ip_vs -e nf_conntrack_ipv4
yum -y install yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum -y update && yum -y install docker-ce
mkdir /etc/docker
cat > /etc/docker/daemon.json << EOF
{
"exec-opts":["native.cgroupdriver=systemd"],
"log-driver":"json-file",
"log-opts":{
"max-size":"100m"
}
}
EOF
##重启机器选择 4.4内核：
systemctl start docker
systemctl enable docker
mkdir -p /etc/systemd/system/docker.service.d
systemctl daemon-reload && systemctl restart docker && systemctl enable docker
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
yum -y install kubeadm-1.15.1 kubectl-1.15.1 kubelet-1.15.1
systemctl enable kubelet.service
#################################
yum -y install kubeadm-1.15.1 kubectl-1.15.1 kubelet-1.15.1
systemctl enable kubelet.service
history
#上传下载下来的避免fq的镜像
tar zxvf kubeadm-basic.images.tar.gz
vim load.images.sh
###脚本如下：
[root@k8s-master01 ~]# cat load.images.sh
#!/bin/bash
ls /root/kubeadm-basic.images > /tmp/image-list.txt
cd /root/kubeadm-basic.images
for i in $( cat /tmp/image-list.txt )
do
docker load -i $i
done
rm -rf /tmp/image-list.txt
###
./load.images.sh
tar zxvf kube
kubeadm config print init-defaults > kubeadm-config.yaml
vim kubeadm-config.yaml
ll
ls -al
kubeadm config print init-defaults > kubeadm-config.yaml
vim kubeadm-config.yaml
kubeadm init --config=kubeadm-config.yaml --experimental-upload-certs | tee kubeadm-init.log
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
kubectl get nodes
mkdir install-k8s
ls
mv kubeadm-init.log kubeadm-config.yaml install-k8s/
cd install-k8s/
ls
mkdir core
mv * ./core/
ls
mkdir plugin
cd plugin/
mkdir flannel
cd flannel/
wget https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
kubectl create -f kube-flannel.yml
kubectl get pod -n kube-system
kubeadm init --kubernetes-version=1.15.1 --apiserver-advertise-address=192.168.175.128 --image-repository registry.aliyuncs.com/google_containers --service-cidr=10.1.0.0/16 --pod-network-cidr=10.244.0.0/16
kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"
kubectl get pod -n kube-system
kubeadm join 192.168.175.128:6443 --token zgybfp.l2tymi4dnipc2bm7 \
--discovery-token-ca-cert-hash sha256:1be98571382adf5cfe70f3a91242a7beacf5e183d0d698a587ae9b5cc7b65ff3
