this is my container running the folder /app copied from the folder express present in my image
this is my image containing the folder express
after dockerising my express app folder I deleted it from my desktop but I still have the image now I need that folder how can I get it from my image
>Solution :
You can run the docker cp command (documentation: https://docs.docker.com/engine/reference/commandline/cp/). The way how to use is the following:
docker cp <container_id_or_name>:/path/in/container /path/in/host
In order to do that, you just need to run a container from the image you have, and then run the docker cp command:
# run a container as deamon
docker run -d --name my-container fahrazzzgb91/merns bash
# from your host, copy the files from the container to the host
docker cp my-container:/path/to/copy .