docker-registry启动供k8s集群使用本地镜像仓

冷不防 2022-10-15 04:59 11阅读 0赞

首先添加一个镜像加速  
\#\#注意分隔符

vim /etc/docker/daemon.json

"registry-mirrors": ["https://8auvmfwy.mirror.aliyuncs.com"]

1.拉取最新镜像

docker pull registry

2.将registry镜像运行并生成一个容器

docker run -d -v /opt/registry:/var/lib/registry -p 5000:5000 --restart=always --name registry registry:latest

\-v 参数本地挂载到/opt/registry中

3.因为我们启动的registry服务不是安全可信赖的。这时需要修改客户端docker的配置文件/etc/docker/daemon.json  
**\#\#集群中要用到私仓的都要修改**

"registry-mirrors": [ "https://pee6w651.mirror.aliyuncs.com"],"insecure-registries": ["192.168.26.130:5000"]

https://pee6w651.mirror.aliyuncs.com 为国内镜像仓代理，  
192.168.26.130:5000 为registry启动的机器ip

重启docker生效

systemctl restart docker

命令查看

curl -XGET http://192.168.26.130:5000/v2/_catalog

4.搭建完成，开始测试

[root@k8s-01 ~]# docker pull nginx ##集群任一节点拉取
    Using default tag: latest
    latest: Pulling from library/nginx
    69692152171a: Pull complete
    49f7d34d62c1: Pull complete
    5f97dc5d71ab: Pull complete
    cfcd0711b93a: Pull complete
    be6172d7651b: Pull complete
    de9813870342: Pull complete
    Digest: sha256:df13abe416e37eb3db4722840dd479b00ba193ac6606e7902331dcea50f4f1f2
    Status: Downloaded newer image for nginx:latest
    docker.io/library/nginx:latest
    [root@k8s-01 ~]# docker images ##查看本地镜像
    REPOSITORY                                                        TAG        IMAGE ID       CREATED         SIZE
    nginx                                                             latest     f0b8a9a54136   11 days ago     133MB
    calico/node                                                       v3.19.0    b0744cc52c19   3 weeks ago     153MB
    calico/pod2daemon-flexvol                                         v3.19.0    a5decf77918d   3 weeks ago     21.7MB
    calico/cni                                                        v3.19.0    3d17cd6307a4   3 weeks ago     146MB
    calico/node                                                       v3.15.5    f0393ae546b5   4 weeks ago     437MB
    calico/pod2daemon-flexvol                                         v3.15.5    0cdfd80862a1   4 weeks ago     21.9MB
    calico/cni                                                        v3.15.5    42b7a3f2bfdf   4 weeks ago     109MB
    registry.aliyuncs.com/google_containers/kube-proxy                v1.18.14   8e6bca1d4e68   5 months ago    117MB
    registry.aliyuncs.com/google_containers/kube-apiserver            v1.18.14   f17e261f4c8a   5 months ago    173MB
    registry.aliyuncs.com/google_containers/kube-controller-manager   v1.18.14   b734a959c6fb   5 months ago    162MB
    registry.aliyuncs.com/google_containers/kube-scheduler            v1.18.14   95660d582e82   5 months ago    95.3MB
    registry.aliyuncs.com/google_containers/pause                     3.2        80d28bedfe5d   15 months ago   683kB
    registry.aliyuncs.com/google_containers/coredns                   1.6.7      67da37a9a360   16 months ago   43.8MB
    registry.aliyuncs.com/google_containers/etcd                      3.4.3-0    303ce5db0e90   19 months ago   288MB
    [root@k8s-01 ~]# docker tag nginx 192.168.26.130:5000/nginx-5-23 ##tag成标准格式
    [root@k8s-01 ~]# docker push 192.168.26.130:5000/nginx-5-23 ##上传镜像
    Using default tag: latest
    The push refers to repository [192.168.26.130:5000/nginx-5-23]
    f0f30197ccf9: Pushed
    eeb14ff930d4: Pushed
    c9732df61184: Pushed
    4b8db2d7f35a: Pushed
    431f409d4c5a: Pushed
    02c055ef67f5: Pushed
    
    [root@k8s-04 ~]# curl -XGET http://192.168.26.130:5000/v2/_catalog ##换个节点查看私仓状态
    { "repositories":["nginx-5-23"]}
    [root@k8s-04 ~]# docker pull 192.168.26.130:5000/nginx-5-23 ##拉取成功
    Using default tag: latest
    latest: Pulling from nginx-5-23
    69692152171a: Pull complete
    49f7d34d62c1: Pull complete
    5f97dc5d71ab: Pull complete
    cfcd0711b93a: Pull complete
    be6172d7651b: Pull complete
    de9813870342: Pull complete
    Digest: sha256:eba373a0620f68ffdc3f217041ad25ef084475b8feb35b992574cd83698e9e3c
    Status: Downloaded newer image for 192.168.26.130:5000/nginx-5-23:latest
    192.168.26.130:5000/nginx-5-23:latest