Copying files/folders from host to Docker container & docker container to host

Copying files/folders from host to Docker container

To copy files or folders from host to docker container or docker container to host we can use docker cp command.

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docker cp

docker copy command docker cp is used to Copy files or folders between a docker container and the local host filesystem

We have to pass docker container id, source and destination path arguments to docker cp command.

docker cp CONTAINER_ID:SOURCE_PATH DESTINATION_PATH
docker cp SOURCE_PATH CONTAINER_ID:DESTINATION_PATH

In Docker versions prior to 1.8 it was only possible to copy files from a docker container to the host. Not from the host to a docker container.

Copy files from host to docker container

To copy a file from host to docker container the below steps.

  1. Get the docker container id by using docker ps command.
  2. Copy file from host to container by using docker cp command.
$ docker ps

CONTAINER ID  IMAGE         COMMAND CREATED         STATUS           PORTS  NAMES
74789744g489  docker_image          9 seconds ago  Up 9 seconds    0.0.0.0:8080->8080/tcp   myblog_container

Now copy the file from host to container.

$ docker cp copytocontainer.html 74789744g489:/copytocontainer.html

Copy files from docker container to host

Similarly by using docker container id,we can copy files from docker container to host as well.

$ docker cp 74789744g489:/copytohost.html copytohost.html

Copy a folder from host to docker container

docker cp command can be used to copy an entire folder from host to docker container and vice versa.

$ docker cp Desktop/images 74789744g489:/root/img_files/car_photos/images

Copy a folder from docker container to host

To copy a folder from docker container to host use the below docker cp command.

$ docker cp 74789744g489:/root/img_files/car_photos/images Desktop/images 

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