170 docker.io public registry 174 docker.mycompany.com private registry 174.
![]() Docker Private Registry Free Accounts OnlyHere, I list the steps to create a private registry locally on Mac.2. It is good for team work internally, also good for security. Since free accounts only offer us one private repository as well as the Internet speed is not as fast as Intranet, people would like to create a private registry to share/distribute the staff. The -p is the option for password which can be given along with the docker command or you can type it in the password prompt after hitting enter on the docker login command.Example given: docker login nexusreg.linuxcent.com:5000 -u vamshiOnce the docker login is succeeded a json file will be generated under your home directory at the following path which contains the auth metadata information. Cat $HOME/.docker/config.json"User-Agent": "Docker-Client/18.09.1 (linux)"The docker login repository URL can be found out from your docker client machine using docker info command if you had previously logged in, as we see below: docker info | grep RegistryHow to logout from the specific docker registry use the docker logout command. For example, set dns via -engine-opt dns8.8.8.8.Check the images in your local VM now:You should see “hello-world” and “registry”5. 5000:5000 means the mapping from VM to Docker container(Since Docker works differently in Mac/Win and Linus, I will explain it in another article ).Now, you may need 1 min to get it downloaded.4. Then:Here, the first “5000” is the port of the virtual machine, the second “5000” is the port of a Docker container. I would like to download a small image for later testing:If you don’t have this image locally, docker will request downloading it from docker public registry(It looks like Maven). Download game guardian parallel spaceI will write down the article about how to get your Docker shared with other people under the same Intranet which is based on it and how Docker organizes and works. I guess the connection preference only required at the first time.Docker pull 192.168.59.103:5000/hello-worldNow, we just create a local registry which could only be used by yourself. Modify /var/lib/boot2docker/profile to use –insecure-registry optionSudo vi /var/lib/boot2docker/profile , then add:EXTRA_ARGS=”–insecure-registry 192.168.59.103:5000″ then save and exit.Here please make sure registry runs actually, in my case ,the registry didn’t run even though it looks like successfully running.To check if a container is running, execute:Something confused me that it works after doing the above modification, but when I deleted “EXTRA_ARGS=”–insecure-registry 192.168.59.103:5000″ and restart my VM, it still works. In the case of HTTPS, if you have access to the registry's CA certificate, no need for the flag simply place the CA certificate at /etc/docker/certs.d/192.168.59.104:5000/ca.crtBecause Docker consider registry should support ssh connection, while the registry we built doesn’t.7. If this private registry supports only HTTP or HTTPS with an unknown CA certificate, please add `-insecure-registry 192.168.59.104:5000` to the daemon's arguments. For me ,I get “ 192.168.59.103”Docker tag hello-world 192.168.59.103:5000/hello-worldDocker push 192.168.59.103:5000/hello-worldYou are supposed to get error like: FATA Error: v1 ping attempt failed with error: Get : dial tcp 192.168.59.104:5000: connection refused.
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