kubeadm init从私有仓库拉取镜像

查看kubeadm config所需的镜像

$ kubeadm config images list

k8s.gcr.io/kube-apiserver:v1.13.1
k8s.gcr.io/kube-controller-manager:v1.13.1
k8s.gcr.io/kube-scheduler:v1.13.1
k8s.gcr.io/kube-proxy:v1.13.1
k8s.gcr.io/pause:3.1
k8s.gcr.io/etcd:3.2.24
k8s.gcr.io/coredns:1.2.6

第一种：中转

首先从Kubernetes国内Docker镜像拉取镜像，然后修改镜像的tag

sudo docker tag registry.cn-beijing.aliyuncs.com/imcto/kube-controller-manager:v1.13.1 k8s.gcr.io/kube-controller-manager:v1.13.1
sudo docker tag registry.cn-beijing.aliyuncs.com/imcto/kube-apiserver:v1.13.1 k8s.gcr.io/kube-apiserver:v1.13.1
sudo docker tag registry.cn-beijing.aliyuncs.com/imcto/kube-proxy:v1.13.1 k8s.gcr.io/kube-proxy:v1.13.1
sudo docker tag registry.cn-beijing.aliyuncs.com/imcto/kube-scheduler:v1.13.1 k8s.gcr.io/kube-scheduler:v1.13.1
sudo docker tag registry.cn-beijing.aliyuncs.com/imcto/etcd:3.2.24 k8s.gcr.io/etcd:3.2.24
sudo docker tag registry.cn-beijing.aliyuncs.com/imcto/pause:3.1 k8s.gcr.io/pause:3.1
sudo docker tag registry.cn-beijing.aliyuncs.com/imcto/coredns:1.2.6 k8s.gcr.io/coredns:1.2.6

第二种：修改配置

使用kubeadm配置文件，通过在配置文件中指定docker仓库地址，便于内网快速部署。

生成配置文件

kubeadm config print init-defaults ClusterConfiguration >kubeadm.conf

修改kubeadm.conf

vi kubeadm.conf
# 修改 imageRepository: k8s.gcr.io
# 改为 registry.cn-beijing.aliyuncs.com/imcto
imageRepository: registry.cn-beijing.aliyuncs.com/imcto
# 修改kubernetes版本kubernetesVersion: v1.13.0
# 改为kubernetesVersion: v1.13.1
kubernetesVersion: v1.13.1

再次查看kubeadm config所需的镜像

$ kubeadm config images list --config kubeadm.conf
registry.cn-beijing.aliyuncs.com/imcto/kube-apiserver:v1.13.1
registry.cn-beijing.aliyuncs.com/imcto/kube-controller-manager:v1.13.1
registry.cn-beijing.aliyuncs.com/imcto/kube-scheduler:v1.13.1
registry.cn-beijing.aliyuncs.com/imcto/kube-proxy:v1.13.1
registry.cn-beijing.aliyuncs.com/imcto/pause:3.1
registry.cn-beijing.aliyuncs.com/imcto/etcd:3.2.24
registry.cn-beijing.aliyuncs.com/imcto/coredns:1.2.6

拉取镜像并初始化

kubeadm config images pull --config kubeadm.conf
kubeadm init --config kubeadm.conf

更多kubeadm配置文件参数详见

kubeadm config print-defaults