How to push a docker image to a private repository

Question

I have a docker image tagged as me/my-image, and I have a private repo on the dockerhub named me-private.
When I push my me/my-image

Answer 1

Ref: dock.docker.com

This topic provides basic information about deploying and configuring a registry

Run a local registry

Before you can deploy a registry, you need to install Docker on the host.

Use a command like the following to start the registry container:

start_registry.sh

#!/bin/bash

docker run -d \
  -p 5000:5000 \
  --restart=always \
  --name registry \
  -v /data/registry:/var/lib/registry \
  registry:2

Copy an image from Docker Hub to your registry

1. Pull the ubuntu:16.04 image from Docker Hub.

   $ docker pull ubuntu:16.04
   

2. Tag the image as localhost:5000/my-ubuntu. This creates an additional tag for the existing image. When the first part of the tag is a hostname and port, Docker interprets this as the location of a registry, when pushing.

   $ docker tag ubuntu:16.04 localhost:5000/my-ubuntu
   

3. Push the image to the local registry running at localhost:5000:

   $ docker push localhost:5000/my-ubuntu
   

4. Remove the locally-cached images. This does not remove the localhost:5000/my-ubuntu image from your registry.

   $ docker image remove ubuntu:16.04
   $ docker image remove localhost:5000/my-ubuntu
   

5. Pull the localhost:5000/my-ubuntu image from your local registry.

   $ docker pull localhost:5000/my-ubuntu
   

Deploy a plain HTTP registry

According to docs.docker.com, this is very insecure and is not recommended.

1. Edit the daemon.json file, whose default location is /etc/docker/daemon.json on Linux or C:\ProgramData\docker\config\daemon.json on Windows Server. If you use Docker for Mac or Docker for Windows, click Docker icon -> Preferences -> Daemon, add in the insecure registry.

   If the daemon.json file does not exist, create it. Assuming there are no other settings in the file, it should have the following contents:

   {
     "insecure-registries" : ["myregistrydomain.com:5000"]
   }
   

   With insecure registries enabled, Docker goes through the following steps:

   • First, try using HTTPS.
     • If HTTPS is available but the certificate is invalid, ignore the error about the certificate.
     • If HTTPS is not available, fall back to HTTP.

2. Restart Docker for the changes to take effect.