docker-kubeadm安装

注: docker系列都是以前自己学习搭建时的笔记，难免有疏漏之处，仅做参考

docker集群管理 (主机先做免密登录,方便文件copy)

master: 192.168.78.130

slave1: 192.168.78.131

slave2: 192.168.78.132

#正文部分

所有主机(master，slave1，slave2)执行

#时间同步

systemctl start chronyd.service

systemctl enable chronyd.service

关闭swapoff

swapoff -a

#配置yum源

wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker.repo

cat << EOF >/etc/yum.repos.d/kubernetes.repo

[kubernetes]

name=Kubernetes

baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/

gpgcheck=1

gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg

enabled=1

EOF

导入gpgcheck包

wget -q https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg

wget -q https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg

rpm --import yum-key.gpg

rpm --import rpm-package-key.gpg

scp rpm-package-key.gpg slave1:/root

scp rpm-package-key.gpg slave2:/root

scp yum-key.gpg slave1:/root

scp yum-key.gpg slave2:/root

scp /etc/yum.repos.d/kubernetes.repo slave1:/etc/yum.repos.d/

scp /etc/yum.repos.d/kubernetes.repo slave2:/etc/yum.repos.d/

master主机

安装docker-ce kubelet kubeadm kubectl

yum install docker-ce-18.09.2-3.el7 kubeadm-1.13.3 kubectl-1.13.3 kubelet-1.13.3 -y

rpm -ql kubelet

设置开机自启

systemctl enable kubelet

systemctl enable docker

systemctl start docker

把以下功能打开，否则可能会报错

echo 1 > /proc/sys/net/bridge/bridge-nf-call-ip6tables

echo 1 > /proc/sys/net/bridge/bridge-nf-call-iptables

echo 1 > /proc/sys/net/ipv4/ip_forward

#执行

kubeadm config images list

#输出

k8s.gcr.io/kube-apiserver:v1.13.3

k8s.gcr.io/kube-controller-manager:v1.13.3

k8s.gcr.io/kube-scheduler:v1.13.3

k8s.gcr.io/kube-proxy:v1.13.3

k8s.gcr.io/pause:3.1

k8s.gcr.io/etcd:3.2.24

k8s.gcr.io/coredns:1.2.6

# pull镜像

docker pull mirrorgooglecontainers/kube-apiserver:v1.13.3

docker pull mirrorgooglecontainers/kube-controller-manager:v1.13.3

docker pull mirrorgooglecontainers/kube-scheduler:v1.13.3

docker pull mirrorgooglecontainers/kube-proxy:v1.13.3

docker pull mirrorgooglecontainers/pause:3.1

docker pull mirrorgooglecontainers/etcd:3.2.24

docker pull coredns/coredns:1.2.6

# 打标签

docker tag docker.io/mirrorgooglecontainers/kube-apiserver:v1.13.3 k8s.gcr.io/kube-apiserver:v1.13.3

docker tag docker.io/mirrorgooglecontainers/kube-controller-manager:v1.13.3 k8s.gcr.io/kube-controller-manager:v1.13.3

docker tag docker.io/mirrorgooglecontainers/kube-scheduler:v1.13.3 k8s.gcr.io/kube-scheduler:v1.13.3

docker tag docker.io/mirrorgooglecontainers/kube-proxy:v1.13.3 k8s.gcr.io/kube-proxy:v1.13.3

docker tag docker.io/mirrorgooglecontainers/pause:3.1 k8s.gcr.io/pause:3.1

docker tag docker.io/mirrorgooglecontainers/etcd:3.2.24 k8s.gcr.io/etcd:3.2.24

docker tag docker.io/coredns/coredns:1.2.6 k8s.gcr.io/coredns:1.2.6

docker tag coredns/coredns:1.2.6 k8s.gcr.io/coredns:1.2.6

# 删除旧镜像

docker rmi mirrorgooglecontainers/kube-apiserver:v1.13.3

docker rmi mirrorgooglecontainers/kube-controller-manager:v1.13.3

docker rmi mirrorgooglecontainers/kube-scheduler:v1.13.3

docker rmi mirrorgooglecontainers/kube-proxy:v1.13.3

docker rmi mirrorgooglecontainers/pause:3.1

docker rmi mirrorgooglecontainers/etcd:3.2.24

docker rmi coredns/coredns:1.2.6

# 关闭Swap选项

cat << EOF >/etc/sysconfig/kubelet

KUBELET_EXTRA_ARGS="--fail-swap-on=false"

EOF

#执行初始化

kubeadm init --kubernetes-version=v1.13.3 --pod-network-cidr=10.244.0.0/16 --service-cidr=10.96.0.0/12 --token-ttl=0 --ignore-preflight-errors=Swap

# flannel 安装

docker pull registry.cn-hangzhou.aliyuncs.com/rsq_kubeadm/flannel:v0.10.0-amd64

docker tag registry.cn-hangzhou.aliyuncs.com/rsq_kubeadm/flannel:v0.10.0-amd64 quay.io/coreos/flannel:v0.10.0-amd64

docker rmi registry.cn-hangzhou.aliyuncs.com/rsq_kubeadm/flannel:v0.10.0-amd64

# 创建集群注意输出最后信息子节点加入时需要

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

节点配置

# rpm-gpg引入完成后开始安装所需包