Private warehouse
Sometimes the use of such a public warehouse Docker Hub may be inconvenient, users can create a local repository for private use.
This section describes how to use local warehouse.
docker-registry is a tool provided by the official, the mirror can be used to build a private warehouse. Based on this article docker-registry v2.x version.
Installation and operation docker-registry
Container operation
You can get the official registry run by the mirror.
$ docker run -d -p 5000:5000 --restart=always --name registry registry
It will use the official registry to start mirroring private warehouse. By default, the warehouse will be created in the / var / lib / registry directory container. You can store the image file in the path specified by local -v parameter. For example, the following example will upload image into local / opt / data / registry directory.
$ docker run -d -p 5000:5000 -v /opt/data/registry:/var/lib/registry registry
Upload in private warehouses, search, download the image
After creating a private warehouse, you can use docker tag to mark a mirror, and then push it to the warehouse. Such as private warehouse address 127.0.0.1:5000.
First check has been mirrored in the machine.
$ docker image ls
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
ubuntu latest ba5877dc9bec 6 weeks ago 192.7 MB
The use of docker tag ubuntu: latest this image is marked as 127.0.0.1:5000/ubuntu:latest.
Format docker tag IMAGE [: TAG] [REGISTRY_HOST [: REGISTRY_PORT] /] REPOSITORY [: TAG].
$ docker tag ubuntu:latest 127.0.0.1:5000/ubuntu:latest
$ docker image ls
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
ubuntu latest ba5877dc9bec 6 weeks ago 192.7 MB
127.0.0.1:5000/ubuntu:latest latest ba5877dc9bec 6 weeks ago 192.7 MB
Use docker push to upload tagged image.
$ docker push 127.0.0.1:5000/ubuntu:latest
The push refers to repository [127.0.0.1:5000/ubuntu]
373a30c24545: Pushed
a9148f5200b0: Pushed
cdd3de0940ab: Pushed
fc56279bbb33: Pushed
b38367233d37: Pushed
2aebd096e0e2: Pushed
latest: digest: sha256:fe4277621f10b5026266932ddf760f5a756d2facd505a94d2da12f4f52f71f5a size: 1568
View warehouse mirroring curl.
$ curl 127.0.0.1:5000/v2/_catalog
{"repositories":["ubuntu"]}
Here you can see { "repositories": [ "ubuntu"]}, it indicates that the image has been successfully uploaded.
Delete an existing image, and then try to download the image from a private warehouse.
$ docker image rm 127.0.0.1:5000/ubuntu:latest
$ docker pull 127.0.0.1:5000/ubuntu:latest
Pulling repository 127.0.0.1:5000/ubuntu:latest
ba5877dc9bec: Download complete
511136ea3c5a: Download complete
9bad880da3d2: Download complete
25f11f5fb0cb: Download complete
ebc34468f71d: Download complete
2318d26665ef: Download complete
$ docker image ls
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
127.0.0.1:5000/ubuntu:latest latest ba5877dc9bec 6 weeks ago 192.7 MB
Precautions
If you do not want to use as a warehouse 127.0.0.1:5000 address, such as want others to host the network segment can also be pushed to mirror the private warehouse. You have to put this example 192.168.199.100:5000 network address as the address of a private warehouse, then you will find success not push mirror.
This is because the default does not allow non-HTTPS Docker way push mirror. We can cancel this restriction by Docker configuration options, or see the next section to configure a private warehouse that can be accessed over HTTPS.
(Verbatim)
https://yeasy.gitbooks.io/docker_practice/content/repository/registry.html
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