欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页

Kubernetes:如何解决从k8s.gcr.io拉取镜像失败问题

程序员文章站 2022-07-13 22:13:27
...

简介

新版本的Kubernetes在安装部署中,需要从k8s.grc.io仓库中拉取所需镜像文件,但由于国内网络防火墙问题导致无法正常拉取,本文将介绍如何绕过此问题,来完成业务的部署。

问题描述

使用Kubernetes V1.11.3版本部署集群业务,在进行kubeadm init时,需要从k8s.grc.io仓库拉取镜像:

[preflight/images] You can also perform this action in beforehand using 'kubeadm config images pull'
[preflight] Some fatal errors occurred:
	[ERROR ImagePull]: failed to pull image [k8s.gcr.io/kube-apiserver-amd64:v1.11.3]: exit status 1
	[ERROR ImagePull]: failed to pull image [k8s.gcr.io/kube-controller-manager-amd64:v1.11.3]: exit status 1
	[ERROR ImagePull]: failed to pull image [k8s.gcr.io/kube-scheduler-amd64:v1.11.3]: exit status 1
	[ERROR ImagePull]: failed to pull image [k8s.gcr.io/kube-proxy-amd64:v1.11.3]: exit status 1
	[ERROR ImagePull]: failed to pull image [k8s.gcr.io/pause:3.1]: exit status 1
	[ERROR ImagePull]: failed to pull image [k8s.gcr.io/etcd-amd64:3.2.18]: exit status 1
	[ERROR ImagePull]: failed to pull image [k8s.gcr.io/coredns:1.1.3]: exit status 1
[preflight] If you know what you are doing, you can make a check non-fatal with `--ignore-preflight-errors=...`

解决方案

docker.io仓库对google的容器做了镜像,可以通过下列命令下拉取相关镜像:

docker pull mirrorgooglecontainers/kube-apiserver-amd64:v1.11.3
docker pull mirrorgooglecontainers/kube-controller-manager-amd64:v1.11.3
docker pull mirrorgooglecontainers/kube-scheduler-amd64:v1.11.3
docker pull mirrorgooglecontainers/kube-proxy-amd64:v1.11.3
docker pull mirrorgooglecontainers/pause:3.1
docker pull mirrorgooglecontainers/etcd-amd64:3.2.18
docker pull coredns/coredns:1.1.3

版本信息需要根据实际情况进行相应的修改。通过docker tag命令来修改镜像的标签:

docker tag docker.io/mirrorgooglecontainers/kube-proxy-amd64:v1.11.3 k8s.gcr.io/kube-proxy-amd64:v1.11.3
docker tag docker.io/mirrorgooglecontainers/kube-scheduler-amd64:v1.11.3 k8s.gcr.io/kube-scheduler-amd64:v1.11.3
docker tag docker.io/mirrorgooglecontainers/kube-apiserver-amd64:v1.11.3 k8s.gcr.io/kube-apiserver-amd64:v1.11.3
docker tag docker.io/mirrorgooglecontainers/kube-controller-manager-amd64:v1.11.3 k8s.gcr.io/kube-controller-manager-amd64:v1.11.3
docker tag docker.io/mirrorgooglecontainers/etcd-amd64:3.2.18  k8s.gcr.io/etcd-amd64:3.2.18
docker tag docker.io/mirrorgooglecontainers/pause:3.1  k8s.gcr.io/pause:3.1
docker tag docker.io/coredns/coredns:1.1.3  k8s.gcr.io/coredns:1.1.3

使用docker rmi删除不用镜像,通过docker images命令显示,已经有我们需要的镜像文件,可以继续部署工作了:

[[email protected] jinguang1]# docker images
REPOSITORY                                                               TAG                 IMAGE ID            CREATED             SIZE
k8s.gcr.io/kube-proxy-amd64                                              v1.11.3             be5a6e1ecfa6        10 days ago         97.8 MB
k8s.gcr.io/kube-scheduler-amd64                                          v1.11.3             ca1f38854f74        10 days ago         56.8 MB
k8s.gcr.io/kube-apiserver-amd64                                          v1.11.3             3de571b6587b        10 days ago         187 MB
coredns/coredns                                                          1.1.3               b3b94275d97c        3 months ago        45.6 MB
k8s.gcr.io/coredns                                                       1.1.3               b3b94275d97c        3 months ago        45.6 MB
k8s.gcr.io/etcd-amd64                                                    3.2.18              b8df3b177be2        5 months ago        219 MB
k8s.gcr.io/pause                                                         3.1                 da86e6ba6ca1        9 months ago        742 kB