集群容器管理之swarm 私有仓库搭建

• 搭建docker私有仓库

搭建docker私有仓库也是通过docker，真是就地取材。

1、首先下载registry镜像

docker pull registry:2

 

2、启动registry镜像的容器

docker run -d -p 5000:5000 -v /myregistry:/var/lib/registry registry:2

说明：

-d ==> 作为daemon进程启动，也就是后台启动

-v /myregistry:/tmp/registry ==> 默认情况下，会将仓库存放于容器内的/tmp/registry目录下，指定本地目录/myregistry挂载到容器，可以防止容器意外停止后镜像的丢失。

-p 5000:5000 ==> 前一个5000是host的端口，后一个是容器的端口。这里是将容器的5000端口映射到host的5000端口。

 

配置文件：
vim /lib/systemd/system/docker.service

ExecStart=/usr/bin/dockerd  --insecure-registry 192.168.3.245:5000

# systemctl daemon-reload
# systemctl restart docker

 

 

或者

# cat /etc/docker/daemon.json 

{ "insecure-registries":["192.168.3.245:5000"] }

　　

3、自制镜像上传

当我们使用Dockerfile自制的镜像上传是，在生成镜像的时候可以就为其打tag
 
1.制作镜像
docker build -t 192.168.3.245:5000/nginx:v1.0.1 .
 
# docker images
REPOSITORY                   TAG                 IMAGE ID            CREATED             SIZE
192.168.3.245:5000/nginx      v1.0.1              34db4ba2c2ce        40 minutes ago
 
2.上传镜像
# docker push 192.168.3.245:5000/nginx:v1.0.1
The push refers to repository [172.16.60.95:5000/nginx]
cf46d45fea5f: Pushed
7419ae91748c: Pushed
d503658d51c7: Pushed
c0f69d032a84: Pushed
5e9b5165a04f: Pushed
a4fdd7463c3e: Pushed
43e653f84b79: Pushed
v1.0.1: digest: sha256:ab928a5ecfa51d3bdc1ec9ebe58e89b7ec78fcbe48275e3d368c9d8845540a01 size: 1784

 

[root@node1 nginx]# curl http://192.168.3.245:5000/v2/_catalog
{"repositories":["busybox","nginx"]}
[root@node1 nginx]# curl http://192.168.3.245:5000/v2/nginx/tags/list
{"name":"nginx","tags":["v1","latest"]}

 

 

4、获取私有仓库镜像

# docker pull 192.168.3.245:5000/nginx:v1.0.1
v1.0.1: Pulling from nginx
Digest: sha256:ab928a5ecfa51d3bdc1ec9ebe58e89b7ec78fcbe48275e3d368c9d8845540a01
Status: Image is up to date for 172.16.60.95:5000/nginx:v1.0.1
 
# docker images
REPOSITORY                   TAG                 IMAGE ID            CREATED             SIZE
192.168.3.245:5000/nginx      v1.0.1              34db4ba2c2ce        43 minutes ago      408MB