kubernetes 1.14.2 kubeadm 方式部署

kubernetes 1.14.2 kubeadm方式部署

主机

192.168.100.111 k8s-master
192.168.100.112 k8s-node1
192.168.100.113 k8s-node2

基本环境

systemctl stop firewalld
ystemctl disable firewalld
sed -i 's/enforcing/disabled/' /etc/selinux/config
setenforce 0

swapoff -a  
vim /etc/fstab 

cat /etc/hosts
192.168.100.111 k8s-master
192.168.100.112 k8s-node1
192.168.100.113 k8s-node2

yum install ntpdate -y
ntpdate  ntp.api.bz

yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

yum install docker

systemctl enable docker && systemctl start docker

vim  /etc/sysctl.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-arptables = 1

sysctl -p

部署

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 install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
systemctl enable kubelet && systemctl start kubelet

kubeadm config images list  ##查询需要的版本

k8s.gcr.io/kube-apiserver:v1.14.2
k8s.gcr.io/kube-controller-manager:v1.14.2
k8s.gcr.io/kube-scheduler:v1.14.2
k8s.gcr.io/kube-proxy:v1.14.2
k8s.gcr.io/pause:3.1
k8s.gcr.io/etcd:3.3.10
k8s.gcr.io/coredns:1.3.1

## 修改对应的版本号

K8S_VERSION=v1.14.2
ETCD_VERSION=3.3.10
DNS_VERSION=1.3.1
PAUSE_VERSION=3.1
FLANNEL_VERSION=v0.11.0-amd64

# 基本组件
docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/kube-apiserver-amd64:$K8S_VERSION
docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/kube-controller-manager-amd64:$K8S_VERSION
docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/kube-scheduler-amd64:$K8S_VERSION
docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy-amd64:$K8S_VERSION
docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/etcd-amd64:$ETCD_VERSION
docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/pause:$PAUSE_VERSION
docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/coredns:$DNS_VERSION

# 网络组件

docker pull quay.io/coreos/flannel:$FLANNEL_VERSION

# 修改tag

docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-apiserver-amd64:$K8S_VERSION k8s.gcr.io/kube-apiserver:$K8S_VERSION
docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-controller-manager-amd64:$K8S_VERSION k8s.gcr.io/kube-controller-manager:$K8S_VERSION
docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-scheduler-amd64:$K8S_VERSION k8s.gcr.io/kube-scheduler:$K8S_VERSION
docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy-amd64:$K8S_VERSION k8s.gcr.io/kube-proxy:$K8S_VERSION
docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/etcd-amd64:$ETCD_VERSION k8s.gcr.io/etcd:$ETCD_VERSION
docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/pause:$PAUSE_VERSION k8s.gcr.io/pause:$PAUSE_VERSION
docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/coredns:$DNS_VERSION k8s.gcr.io/coredns:$DNS_VERSION

安装

kubeadm init --kubernetes-version=1.14.2 --pod-network-cidr=10.244.0.0/16 --apiserver-advertise-address=192.168.100.111

To start using your cluster, you need to run the following as a regular user:

###  master执行
  mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config

You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
  https://kubernetes.io/docs/concepts/cluster-administration/addons/

Then you can join any number of worker nodes by running the following on each as root:

## node 节点执行 
kubeadm join 192.168.100.111:6443 --token ws2hxe.zeq9skej2ppjx4ip \
    --discovery-token-ca-cert-hash sha256:abf8f2694f738fcd199aa5bbf99491b0f9248b3750b1df7ba47450bbe9a75f81

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

##三台都执行
mkdir -p /etc/cni/net.d/
cat <<EOF> /etc/cni/net.d/10-flannel.conf
{"name":"cbr0","type":"flannel","delegate": {"isDefaultGateway": true}}
EOF
mkdir /usr/share/oci-umount/oci-umount.d -p
mkdir /run/flannel/
cat <<EOF> /run/flannel/subnet.env
FLANNEL_NETWORK=10.244.0.0/16
FLANNEL_SUBNET=10.244.0.1/24
FLANNEL_MTU=1450
FLANNEL_IPMASQ=true
EOF

## master
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.10.0/Documentation/kube-flannel.yml

kubectl get nodes
NAME         STATUS   ROLES    AGE   VERSION
k8s-master   Ready    master   50m   v1.14.2
k8s-node1    Ready    <none>   46m   v1.14.2
k8s-node2    Ready    <none>   46m   v1.14.2