Publish local image to private library

Publish local image to private library process ：

What is it? ：

1 official Docker Hub Address ：https://hub.docker.com/, Chinese mainland visits are too slow and are ready to be replaced by Ali cloud. , Not very mainstream .

2 Dockerhub、 Public image warehouses like Alibaba cloud may be inconvenient , Companies involved in confidentiality cannot provide images to the public network , So you need to create a local private warehouse for the team to use , Build a mirror image based on internal projects .
Docker Registry It's an official tool , It can be used to build a private image warehouse

Push local image to private library ：

1. Download mirroring Docker Registry

2. Run private library Registry, It is equivalent to having a local private Docker hub

docker run -d -p 5000:5000 -v /zzyyuse/myregistry/:/tmp/registry --privileged=true registry
By default , The warehouse is created in the container /var/lib/registry Under the table of contents , It is recommended to use container volume mapping by yourself , It is convenient for the joint commissioning of host computer

3. The case demonstrates creating a new image ,ubuntu install ifconfig command ：

  ** from Hub Upload and download ubuntu Mirror to local and run successfully 
   The original Ubuntu The mirror image is without ifconfig Ordered ：** 

When the external network is connected , install ifconfig Command and test passed ：
docker Execute the above two commands in the container ：
apt-get update
apt-get install net-tools

After installation ,commit Our own new image ：
The formula ：
docker commit -m=“ Description information submitted ” -a=“ author ” Containers ID The target mirror name to create :[ Tag name ]
command ： Execute outside the container , Remember
docker commit -m=“ifconfig cmd add” -a=“zzyy” a69d7c825c4f zzyyubuntu:1.2

Start our new image and compare it with the original ：
1 The official website is downloaded by default Ubuntu No, ifconfig command
2 Our own commit Build a new image , The new increased ifconfig function , Can be used successfully .

4. curl Verify what image exists on the private server library

curl -XGET http://192.168.111.162:5000/v2/_catalog

You can see , At present, there is no image uploaded in the private server Library ......

5. Mirror the new image zzyyubuntu:1.2 Modify the private server specification Tag

According to the formula ： docker tag Mirror image :Tag Host:Port/Repository:Tag
own host host IP Address , Fill in your own , Don't paste errors ,O(∩_∩)O
Use command docker tag take zzyyubuntu:1.2 This image is changed to 192.168.111.162:5000/zzyyubuntu:1.2

docker tag zzyyubuntu:1.2 192.168.111.162:5000/zzyyubuntu:1.2

6. Modify the configuration file to support http

Don't copy without thinking ,registry-mirrors The image acceleration address provided by Alibaba in China is configured , If you don't need to speed up, the access to the official website will be very slow .
2 There is a comma in the middle of the configuration ',' Don't miss , This configuration is json Format .
2 There is a comma in the middle of the configuration ',' Don't miss , This configuration is json Format .
2 There is a comma in the middle of the configuration ',' Don't miss , This configuration is json Format .
vim Add the following red content to the command ：vim /etc/docker/daemon.json
{
“registry-mirrors”: [“https://aa25jngu.mirror.aliyuncs.com”],
“insecure-registries”: [“192.168.111.162:5000”]
}
For the above reasons ：docker Not allowed by default http Mode push mirror , Remove this restriction by configuring options .====> After modification, if it does not take effect , Suggest restart docker

7.push Push to private server Library

docker push 192.168.111.162:5000/zzyyubuntu:1.2

8.curl Verify what image exists on the private server library 2

curl -XGET http://192.168.111.162:5000/v2/_catalog

9.pull Go local and run

docker pull 192.168.111.162:5000/zzyyubuntu:1.2

docker run -it Mirror image ID /bin/bash

Save the image as a compressed package

docker save -o abc.tar guignginx:v1.0

Other machines load this image

docker load -i abc.tar