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overlay2: add support for --storage-opt size 

Allow passing --storage-opt size=X to docker create/run commands
for the `overlay2` graphriver.

The size option is only available if the backing fs is xfs that is
mounted with the `pquota` mount option.
The user can pass any size less then the backing fs size.

Signed-off-by: Amir Goldstein <amir73il@aquasec.com>
This commit is contained in:
Amir Goldstein 2016-09-18 22:35:55 +03:00 committed by Tibor Vass
parent 833db8ffac
commit 6190d02e62
4 changed files with 24 additions and 8 deletions
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9
docs/reference/commandline/create.md
View File

@ -167,8 +167,13 @@ Set storage driver options per container.
$ docker create -it --storage-opt size=120G fedora /bin/bash
This (size) will allow to set the container rootfs size to 120G at creation time.
User cannot pass a size less than the Default BaseFS Size. This option is only
available for the `devicemapper`, `btrfs`, `windowsfilter`, and `zfs` graph drivers.
This option is only available for the `devicemapper`, `btrfs`, `overlay2`,
`windowsfilter` and `zfs` graph drivers.
For the `devicemapper`, `btrfs`, `windowsfilter` and `zfs` graph drivers,
user cannot pass a size less than the Default BaseFS Size.
For the `overlay2` storage driver, the size option is only available if the
backing fs is `xfs` and mounted with the `pquota` mount option.
Under these conditions, user can pass any size less then the backing fs size.
### Specify isolation technology for container (--isolation)

9
docs/reference/commandline/run.md
View File

@ -194,8 +194,13 @@ The `-w` lets the command being executed inside directory given, here
$ docker run -it --storage-opt size=120G fedora /bin/bash
This (size) will allow to set the container rootfs size to 120G at creation time.
User cannot pass a size less than the Default BaseFS Size. This option is only
available for the `devicemapper`, `btrfs`, `windowsfilter`, and `zfs` graph drivers.
This option is only available for the `devicemapper`, `btrfs`, `overlay2`,
`windowsfilter` and `zfs` graph drivers.
For the `devicemapper`, `btrfs`, `windowsfilter` and `zfs` graph drivers,
user cannot pass a size less than the Default BaseFS Size.
For the `overlay2` storage driver, the size option is only available if the
backing fs is `xfs` and mounted with the `pquota` mount option.
Under these conditions, user can pass any size less then the backing fs size.
### Mount tmpfs (--tmpfs)

7
man/docker-create.1.md
View File

@ -343,8 +343,11 @@ unit, `b` is used. Set LIMIT to `-1` to enable unlimited swap.
$ docker create -it --storage-opt size=120G fedora /bin/bash
This (size) will allow to set the container rootfs size to 120G at creation time. User cannot pass a size less than the Default BaseFS Size.
This option is only available for the `devicemapper`, `btrfs`, and `zfs` graph drivers.
This (size) will allow to set the container rootfs size to 120G at creation time.
This option is only available for the `devicemapper`, `btrfs`, `overlay2` and `zfs` graph drivers.
For the `devicemapper`, `btrfs` and `zfs` storage drivers, user cannot pass a size less than the Default BaseFS Size.
For the `overlay2` storage driver, the size option is only available if the backing fs is `xfs` and mounted with the `pquota` mount option.
Under these conditions, user can pass any size less then the backing fs size.
**--stop-signal**=*SIGTERM*
Signal to stop a container. Default is SIGTERM.

7
man/docker-run.1.md
View File

@ -493,8 +493,11 @@ incompatible with any restart policy other than `none`.
$ docker run -it --storage-opt size=120G fedora /bin/bash
This (size) will allow to set the container rootfs size to 120G at creation time. User cannot pass a size less than the Default BaseFS Size.
This option is only available for the `devicemapper`, `btrfs`, and `zfs` graph drivers.
This (size) will allow to set the container rootfs size to 120G at creation time.
This option is only available for the `devicemapper`, `btrfs`, `overlay2` and `zfs` graph drivers.
For the `devicemapper`, `btrfs` and `zfs` storage drivers, user cannot pass a size less than the Default BaseFS Size.
For the `overlay2` storage driver, the size option is only available if the backing fs is `xfs` and mounted with the `pquota` mount option.
Under these conditions, user can pass any size less then the backing fs size.
**--stop-signal**=*SIGTERM*
Signal to stop a container. Default is SIGTERM.