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Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #159 Approved by: TomSweeneyRedHat
47 lines
1.6 KiB
Markdown
47 lines
1.6 KiB
Markdown
% podman(1) podman-cp - Copy content between container's file system and the host
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% Dan Walsh
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# podman-cp "1" "August 2017" "podman"
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## NAME
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podman cp - Copy files/folders between a container and the local filesystem
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## Description
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We chose not to implement the `cp` feature in `podman` even though the upstream Docker
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project has it. We have a much stronger capability. Using standard podman-mount
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and podman-umount, we can take advantage of the entire linux tool chain, rather
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then just cp.
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If a user wants to copy contents out of a container or into a container, they
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can execute a few simple commands.
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You can copy from the container's file system to the local machine or the
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reverse, from the local filesystem to the container.
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If you want to copy the /etc/foobar directory out of a container and onto /tmp
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on the host, you could execute the following commands:
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mnt=$(podman mount CONTAINERID)
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cp -R ${mnt}/etc/foobar /tmp
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podman umount CONTAINERID
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If you want to untar a tar ball into a container, you can execute these commands:
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mnt=$(podman mount CONTAINERID)
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tar xf content.tgz -C ${mnt}
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podman umount CONTAINERID
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One last example, if you want to install a package into a container that
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does not have dnf installed, you could execute something like:
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mnt=$(podman mount CONTAINERID)
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dnf install --installroot=${mnt} httpd
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chroot ${mnt} rm -rf /var/log/dnf /var/cache/dnf
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podman umount CONTAINERID
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This shows that using `podman mount` and `podman umount` you can use all of the
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standard linux tools for moving files into and out of containers, not just
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the cp command.
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## SEE ALSO
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podman(1), podman-mount(1), podman-umount(1)
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