====== Docker Copy files ======

===== Container =====

[[https://www.baeldung.com/ops/docker-copying-files|Good Examples]]

[[https://docs.docker.com/engine/reference/commandline/cp/|Official Documentation]]

The first example copies a file from the /tmp directory on the host machine into the Grafana install directory in the grafana container:

<code bash>
docker cp /tmp/config.ini grafana:/usr/share/grafana/conf/
</code>

To copy files from the grafana container to the /tmp directory on the host machine, we just switch the order of the parameters:

<code bash>
docker cp grafana:/usr/share/grafana/conf/defaults.ini /tmp
</code>

We can also copy an entire directory instead of single files. This example copies the entire conf directory from the grafana container to the /tmp directory on the host machine:

<code>
docker cp grafana:/usr/share/grafana/conf /tmp
</code>

===== Volume =====

You can't copy directly into a Volume, thus a temporary container needs to be started.

<code bash>
docker container create --name temp -v my-jenkins-volume:/data busybox
docker cp . temp:/data
docker rm temp
</code>

[[https://stackoverflow.com/a/55683656/9397749|Source from stackoverflow]]