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new "image" mount type

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Add a new "image" mount type to `--mount`.  The source of the mount is
the name or ID of an image.  The destination is the path inside the
container.  Image mounts further support an optional `rw,readwrite`
parameter which if set to "true" will yield the mount writable inside
the container.  Note that no changes are propagated to the image mount
on the host (which in any case is read only).

Mounts are overlay mounts.  To support read-only overlay mounts, vendor
a non-release version of Buildah.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
This commit is contained in:
Valentin Rothberg
2020-10-26 11:35:02 +01:00
parent cce6c6cd40
commit 65a618886e
168 changed files with 6143 additions and 10606 deletions
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35
docs/source/markdown/podman-create.1.md
View File

@ -507,7 +507,7 @@ Tune a container's memory swappiness behavior. Accepts an integer between 0 and
Attach a filesystem mount to the container
Current supported mount TYPES are `bind`, `volume`, `tmpfs` and `devpts`. <sup>[[1]](#Footnote1)</sup>
Current supported mount TYPEs are **bind**, **volume**, **image**, **tmpfs** and **devpts**. <sup>[[1]](#Footnote1)</sup>
e.g.
@ -519,33 +519,46 @@ Current supported mount TYPES are `bind`, `volume`, `tmpfs` and `devpts`. <sup>[
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.
· src, source: mount source spec for bind and volume. Mandatory for bind.
· dst, destination, target: mount destination spec.
· dst, destination, target: mount destination spec.
· ro, readonly: true or false (default).
Options specific to volume:
· ro, readonly: true or false (default).
Options specific to image:
· rw, readwrite: true or false (default).
Options specific to bind:
· bind-propagation: shared, slave, private, rshared, rslave, or rprivate(default). See also mount(2).
· ro, readonly: true or false (default).
. bind-nonrecursive: do not setup a recursive bind mount. By default it is recursive.
· bind-propagation: shared, slave, private, rshared, rslave, or rprivate(default). See also mount(2).
. relabel: shared, private.
. bind-nonrecursive: do not setup a recursive bind mount. By default it is recursive.
. relabel: shared, private.
Options specific to tmpfs:
· tmpfs-size: Size of the tmpfs mount in bytes. Unlimited by default in Linux.
· ro, readonly: true or false (default).
· tmpfs-mode: File mode of the tmpfs in octal. (e.g. 700 or 0700.) Defaults to 1777 in Linux.
· tmpfs-size: Size of the tmpfs mount in bytes. Unlimited by default in Linux.
· tmpcopyup: Enable copyup from the image directory at the same location to the tmpfs. Used by default.
· 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.
· notmpcopyup: Disable copying files from the image to the tmpfs.
**--name**=*name*

14
docs/source/markdown/podman-run.1.md
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@ -533,7 +533,7 @@ Tune a container's memory swappiness behavior. Accepts an integer between *0* an
Attach a filesystem mount to the container
Current supported mount TYPEs are **bind**, **volume**, **tmpfs** and **devpts**. <sup>[[1]](#Footnote1)</sup>
Current supported mount TYPEs are **bind**, **volume**, **image**, **tmpfs** and **devpts**. <sup>[[1]](#Footnote1)</sup>
e.g.
@ -545,6 +545,8 @@ Current supported mount TYPEs are **bind**, **volume**, **tmpfs** and **devpts**
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:
@ -553,10 +555,18 @@ Current supported mount TYPEs are **bind**, **volume**, **tmpfs** and **devpts**
· dst, destination, target: mount destination spec.
Options specific to volume:
· ro, readonly: true or false (default).
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, rshared, rslave, or rprivate(default). See also mount(2).
. bind-nonrecursive: do not setup a recursive bind mount. By default it is recursive.
@ -565,6 +575,8 @@ Current supported mount TYPEs are **bind**, **volume**, **tmpfs** and **devpts**
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.