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#### **--mount**=*type=TYPE,TYPE-SPECIFIC-OPTION[,...]*
Attach a filesystem mount to the container
Current supported mount TYPEs are **bind**, **volume**, **image**, **tmpfs** and **devpts**. <sup>[[1]](#Footnote1)</sup>
e.g.
type=bind,source=/path/on/host,destination=/path/in/container
type=bind,src=/path/on/host,dst=/path/in/container,relabel=shared
type=bind,src=/path/on/host,dst=/path/in/container,relabel=shared,U=true
type=volume,source=vol1,destination=/path/in/container,ro=true
type=tmpfs,tmpfs-size=512M,destination=/path/in/container
type=image,source=fedora,destination=/fedora-image,rw=true
type=devpts,destination=/dev/pts
Common Options:
· src, source: mount source spec for bind and volume. Mandatory for bind.
· dst, destination, target: mount destination spec.
Options specific to volume:
· ro, readonly: true or false (default).
. U, chown: true or false (default). Change recursively the owner and group of the source volume based on the UID and GID of the container.
· idmap: true or false (default). If specified, create an idmapped mount to the target user namespace in the container.
Options specific to image:
· rw, readwrite: true or false (default).
Options specific to bind:
· ro, readonly: true or false (default).
· bind-propagation: shared, slave, private, unbindable, rshared, rslave, runbindable, or rprivate(default). See also mount(2).
. bind-nonrecursive: do not set up a recursive bind mount. By default it is recursive.
. relabel: shared, private.
· idmap: true or false (default). If specified, create an idmapped mount to the target user namespace in the container.
. U, chown: true or false (default). Change recursively the owner and group of the source volume based on the UID and GID of the container.
Options specific to tmpfs:
· ro, readonly: true or false (default).
· tmpfs-size: Size of the tmpfs mount in bytes. Unlimited by default in Linux.
· tmpfs-mode: File mode of the tmpfs in octal. (e.g. 700 or 0700.) Defaults to 1777 in Linux.
· tmpcopyup: Enable copyup from the image directory at the same location to the tmpfs. Used by default.
· notmpcopyup: Disable copying files from the image to the tmpfs.
. U, chown: true or false (default). Change recursively the owner and group of the source volume based on the UID and GID of the container.
Options specific to devpts:
· uid: UID of the file owner (default 0).
· gid: GID of the file owner (default 0).
· mode: permission mask for the file (default 600).
· max: maximum number of PTYs (default 1048576).
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