summaryrefslogtreecommitdiff
path: root/docs/source/markdown/podman-cp.1.md
diff options
context:
space:
mode:
Diffstat (limited to 'docs/source/markdown/podman-cp.1.md')
-rw-r--r--docs/source/markdown/podman-cp.1.md120
1 files changed, 120 insertions, 0 deletions
diff --git a/docs/source/markdown/podman-cp.1.md b/docs/source/markdown/podman-cp.1.md
new file mode 100644
index 000000000..0f54b2e8b
--- /dev/null
+++ b/docs/source/markdown/podman-cp.1.md
@@ -0,0 +1,120 @@
+% podman-cp(1)
+
+## NAME
+podman\-cp - Copy files/folders between a container and the local filesystem
+
+## SYNOPSIS
+**podman cp** [*options*] [*container*:]*src_path* [*container*:]*dest_path*
+
+**podman container cp** [*options*] [*container*:]*src_path* [*container*:]*dest_path*
+
+## DESCRIPTION
+Copies the contents of **src_path** to the **dest_path**. You can copy from the container's filesystem to the local machine or the reverse, from the local filesystem to the container.
+If - is specified for either the SRC_PATH or DEST_PATH, you can also stream a tar archive from STDIN or to STDOUT.
+
+The CONTAINER can be a running or stopped container. The **src_path** or **dest_path** can be a file or directory.
+
+The **podman cp** command assumes container paths are relative to the container's / (root) directory.
+
+This means supplying the initial forward slash is optional;
+
+The command sees **compassionate_darwin:/tmp/foo/myfile.txt** and **compassionate_darwin:tmp/foo/myfile.txt** as identical.
+
+Local machine paths can be an absolute or relative value.
+The command interprets a local machine's relative paths as relative to the current working directory where **podman cp** is run.
+
+Assuming a path separator of /, a first argument of **src_path** and second argument of **dest_path**, the behavior is as follows:
+
+**src_path** specifies a file
+ - **dest_path** does not exist
+ - the file is saved to a file created at **dest_path**
+ - **dest_path** does not exist and ends with /
+ - Error condition: the destination directory must exist.
+ - **dest_path** exists and is a file
+ - the destination is overwritten with the source file's contents
+ - **dest_path** exists and is a directory
+ - the file is copied into this directory using the basename from **src_path**
+
+**src_path** specifies a directory
+ - **dest_path** does not exist
+ - **dest_path** is created as a directory and the contents of the source directory are copied into this directory
+ - **dest_path** exists and is a file
+ - Error condition: cannot copy a directory to a file
+ - **dest_path** exists and is a directory
+ - **src_path** ends with /
+ - the source directory is copied into this directory
+ - **src_path** ends with /. (that is: slash followed by dot)
+ - the content of the source directory is copied into this directory
+
+The command requires **src_path** and **dest_path** to exist according to the above rules.
+
+If **src_path** is local and is a symbolic link, the symbolic target, is copied by default.
+
+A colon (:) is used as a delimiter between CONTAINER and its path.
+
+You can also use : when specifying paths to a **src_path** or **dest_path** on a local machine, for example, `file:name.txt`.
+
+If you use a : in a local machine path, you must be explicit with a relative or absolute path, for example:
+ `/path/to/file:name.txt` or `./file:name.txt`
+
+## OPTIONS
+
+**--extract**
+
+Extract the tar file into the destination directory. If the destination directory is not provided, extract the tar file into the root directory.
+
+**--pause**
+
+Pause the container while copying into it to avoid potential security issues around symlinks. Defaults to *true*. On rootless containers with cgroups V1, defaults to false.
+
+## ALTERNATIVES
+
+Podman has much stronger capabilities than just `podman cp` to achieve copy files between host and container.
+
+Using standard podman-mount and podman-umount takes advantage of the entire linux tool chain, rather
+then just cp.
+
+If a user wants to copy contents out of a container or into a container, they can execute a few simple commands.
+
+You can copy from the container's file system to the local machine or the reverse, from the local filesystem to the container.
+
+If you want to copy the /etc/foobar directory out of a container and onto /tmp on the host, you could execute the following commands:
+
+ mnt=$(podman mount CONTAINERID)
+ cp -R ${mnt}/etc/foobar /tmp
+ podman umount CONTAINERID
+
+If you want to untar a tar ball into a container, you can execute these commands:
+
+ mnt=$(podman mount CONTAINERID)
+ tar xf content.tgz -C ${mnt}
+ podman umount CONTAINERID
+
+One last example, if you want to install a package into a container that
+does not have dnf installed, you could execute something like:
+
+ mnt=$(podman mount CONTAINERID)
+ dnf install --installroot=${mnt} httpd
+ chroot ${mnt} rm -rf /var/log/dnf /var/cache/dnf
+ podman umount CONTAINERID
+
+This shows that using `podman mount` and `podman umount` you can use all of the
+standard linux tools for moving files into and out of containers, not just
+the cp command.
+
+## EXAMPLE
+
+podman cp /myapp/app.conf containerID:/myapp/app.conf
+
+podman cp /home/myuser/myfiles.tar containerID:/tmp
+
+podman cp containerID:/myapp/ /myapp/
+
+podman cp containerID:/home/myuser/. /home/myuser/
+
+podman cp --extract /home/myuser/myfiles.tar.gz containerID:/myfiles
+
+podman cp - containerID:/myfiles.tar.gz < myfiles.tar.gz
+
+## SEE ALSO
+podman(1), podman-mount(1), podman-umount(1)