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k8s-minikube's Introduction

minikube环境搭建

本文中使用的minikube版本为minikube-linux-amd64 v1.9.0

minikube的安装步骤请参考官方教程 install-minikube

处理启动报错

启动minikube后,即使使用了阿里云的镜像仓库,由于GFW的原因还会出现访问一些域名会报错的情况,如gcr.io

使用--alsologtostderr=true可以将日志输出打印到控制台

minikube start --alsologtostderr=true --image-mirror-country=cn --image-repository=registry.cn-hangzhou.aliyuncs.com/google_containers

通过错误日志发现主要是:

1.需要下载https://storage.googleapis.com/minikube-preloaded-volume-tarballs/preloaded-images-k8s-v2-v1.18.0-docker-overlay2-amd64.tar.lz4

2.需要安装docker镜像gcr.io/k8s-minikube/kicbase:v0.0.8@sha256:2f3380ebf1bb0c75b0b47160fd4e61b7b8fef0f1f32f9def108d3eada50a7a81

对于第一个问题手动下载放到/home/用户名/.minikube/cache/preloaded-tarball/目录下即可

对于第二个问题有三种处理方式:

  1. 配置docker代理

  2. 使用三方的gcr.io镜像仓库

  3. 自己搭建gcr.io的镜像仓库

docker代理需要在启动时配置

$ vim /usr/lib/systemd/system/docker.service
[Service]
Environment="ALL_PROXY=socks5://1127.0.0.1:1080"

$ systemctl daemon-reload
$ systemctl restart docker

如果代理比较慢可能下载不下来

使用2和3的方式将镜像下载后需要通过docker tag进行重名为gcr.io命名空间下的镜像.

docker tag imageid name:tag

在实际实验中,发现网络上提供的许多三方的gcr.io镜像仓库已经无法使用,遂决定使用阿里云来同步需要的gcr.io下的image

阿里云搭建gcr.io镜像仓库

1.首先在github上创建需要同步的镜像的Dockerfile,具体结构可以参见

2.阿里云上配置仓库和构建规则

kicbase镜像同步完成后,在本地docker pull下即可

docker pull registry.cn-hangzhou.aliyuncs.com/k8s-minikube/kicbase:v0.0.8

image重命名

docker tag registry.cn-hangzhou.aliyuncs.com/k8s-minikube/kicbase:v0.0.8 gcr.io/k8s-minikube/kicbase:v0.0.8

通过docker tag后digest变成了none

minikue使用docker images --format "{{.Repository}}:{{.Tag}}@{{.Digest}}"查找镜像后会匹配digest,所以也需要修改下重命名后的digest。

修改/var/lib/docker/image/overlay2/repositories.json中的gcr.io/k8s-minikube/kicbase,添加一个digest ,重启docker即可生效。

守护进程重启
sudo systemctl daemon-reload
重启docker服务
sudo systemctl restart docker

最后

经过以上步骤希望你也能成功启动minikube :grimacing:

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