I am trying to copy a file from my host to my container. I have already checked out many threads but neither of those work out for me.
File name, I'm trying to copy: ex.txt
Container folder where it needs to be: my_folder
user:~$ docker exec -it my_container bash
a5b13d9a55fd:~S ls
my_folder
What I have tried so far:
user:~$ docker cp ex.txt my_container:/my_folder/
no such directory
user:~$ docker cp ex.txt my_container:/my_folder/ex.txt
Error response from daemon: lstat /var/lib/docker/aufs/mnt/f7796d886aa3673be37b1d346190b7d6ba0ed64edf83bf62bff325f87eaec5eb/my_folder: no such file or directory
Please suggest where am I missing the code?
EDIT: since the Image seems to use a none ROOT User you may try this:
docker cp ex.txt my_container:$HOME/my_folder/ex.txt
you should make sure that my_folder is already in the container, to be sure run this command at first:
docker exec my_container_name mkdir -p $HOME/my_folder
Please go through offical documentation properly.
Also check this out.
In your case this should work.
docker cp ex.txt my_container:/my_folder/
Update-1:
In your case, I doubt /my_folder is not present inside the container, this is what the error says.
Also quoting the line mentioned in official documentation.
docker cp does not create parent directories for DEST_PATH if they do not exist.
So the /my_folder directory will not get created automatically.
Do this. docker exec -it my_container mkdir /my_folder and then run docker cp command.
Update-2:
If nothing is working then please try this, it worked for me.
$ cat /root/ex.txt
abc
$ docker run -itd alpine sh
Unable to find image 'alpine:latest' locally
latest: Pulling from library/alpine
921b31ab772b: Pull complete
Digest: sha256:ca1c944a4f8486a153024d9965aafbe24f5723c1d5c02f4964c045a16d19dc54
Status: Downloaded newer image for alpine:latest
35ad53b81c30f675b28a53e6a266f039cf49e90705d41e499deb4f17ab900255
$
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
35ad53b81c30 alpine "sh" 3 seconds ago Up 2 seconds mystifying_babbage
$
$ docker exec -it 35ad53b81c30 sh
/ # ls
bin dev etc home lib media mnt opt proc root run sbin srv sys tmp usr var
/ # mkdir /my_folder
$
$ docker cp /root/ex.txt mystifying_babbage:/my_folder/
$
$ docker exec -it 35ad53b81c30 sh
/ # ls /my_folder/
ex.txt
/ # cat /my_folder/ex.txt
abc
/ #
Hope this helps.
Ensure also not having typos in the container name, otherwise the same error will show up too