Copying files from host to Docker container

Question

I am trying to build a backup and restore solution for the Docker containers. How can I copy files from the host to the container?

Appreciate the help.

Answer 1

For copying the files from the host to the docker container :

1. First, set the path in your localhost to where the file is stored.
2. Next set the path in your docker container to where you want to store the file inside your docker container.
3. Then copy the file which you want to store in your docker container with the help of CP command. 

ex: sudo docker cp /home/(name)/(folder_name)/(file_name)  (container_id):/(to_the_place_you_want_the_file_to_be)

Comments

When I run docker-compose up all the changes are rolled back and nothing happens

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Are you trying to copy files from host to container using docker-compose? You can simply mount your local file with your container.

Answer 2

P.S The docker cp command works similar to the SSH scp command.

1. Container -> Local Host. Copy file or folder from a docker container to the local file system. Terminal.
2. Local Host -> Container. Copy file or folder from the local file system to a docker container, it works the same. Terminal.

Hope this will help

Answer 3

Hi,

You can use the docker cp command to copy files from host to docker container.

$ docker cp /hostfile  (container_id):/(to_the_place_you_want_the_file_to_be)