How to copy docker images from one host to another without a repository

Question

I create my own image in virtualbox and deploy it on other machines. I’m not able to recreate images from dockerfile. How to transfer docker image from one machine to another one without using a repository, doesn’t matter if its private or public?

Answer 1

You will need to save the docker image as a tar file:

docker save -o <path for generated tar file> <image name>

Then copy your image to a new system with regular file transfer tools such as cp or scp. After that you will have to load the image into docker:

docker load -i <path to image tar file>

I hope this helps you

Answer 2

To save an image to any file path or shared NFS place, 

• To get the image id:

sudo docker images

• Say you have an image with id "table-data".

• Save the image with id:

sudo docker save -o /home/table/table-data.tar table-data

• Copy the image from the path to any host. Now import to your local Docker installation using:

sudo docker load -i <path to copied image file>