Now, cross-check if you have that image on the target machine by using docker images or docker image list. The end result will be something like below: $ docker image list REPOSITORY TAG IMAGE ID CREATED SIZE python 2.7.17-alpine3.9 3f0e580ded94 2 hours ago 74.9MB Using Docker Export Command. Setting up your own private Docker image repository is very important for many reasons. With your private Docker image repository, you can: Keep the images you download from Docker Hub to your private Docker image repository for future use. Keep the Docker custom images that you’ve built on your private Docker image repository.
A proxy is required when the server running Docker does not have direct access to the Internet. Configure the Docker daemon to use a proxy server to access images stored on the official Docker Hub Registry or 3rd-party registries. There are 2 ways to configure the proxy for docker :
Configuring proxy variables in the /etc/sysconfig/docker file
Configuring environment variables
Method 1 : Configuring proxy variables in the /etc/sysconfig/docker file
1. Add following configuration in /etc/sysconfig/docker file:
For example :
2. Restart the Docker daemon after setting up the proxy.
Method 2 : Configuring environment variables
1. Create a drop-in
2. Create a file with name /etc/systemd/system/docker.service.d/http-proxy.conf that adds the HTTP_PROXY environment variable:
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3. reload the systemd daemon
4. restart docker
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