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Merge pull request #2600 from AkihiroSuda/fix-doc-cgroupdriver

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docs: update for cgroup v2 and rootless
This commit is contained in:
Sebastiaan van Stijn
2020-06-25 19:26:07 +02:00
committed by GitHub
parent 691d3b7a7f beb23c9963
commit 36c33202f7
3 changed files with 11 additions and 5 deletions
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8
docs/reference/commandline/dockerd.md
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@ -290,7 +290,7 @@ $ docker -H tcp://127.0.0.1:2375 pull ubuntu
### Daemon storage-driver
On Linux, the Docker daemon has support for several different image layer storage
drivers: `aufs`, `devicemapper`, `btrfs`, `zfs`, `overlay` and `overlay2`.
drivers: `aufs`, `devicemapper`, `btrfs`, `zfs`, `overlay`, `overlay2`, and `fuse-overlayfs`.
The `aufs` driver is the oldest, but is based on a Linux kernel patch-set that
is unlikely to be merged into the main kernel. These are also known to cause
@ -341,6 +341,9 @@ to use it.
> Both `overlay` and `overlay2` are currently unsupported on `btrfs`
> or any Copy on Write filesystem and should only be used over `ext4` partitions.
The `fuse-overlayfs` driver is similar to `overlay2` but works in userspace.
The `fuse-overlayfs` driver is expected to be used for [Rootless mode](https://docs.docker.com/engine/security/rootless/).
On Windows, the Docker daemon supports a single image layer storage driver
depending on the image platform: `windowsfilter` for Windows images, and
`lcow` for Linux containers on Windows.
@ -999,7 +1002,8 @@ single `native.cgroupdriver` option is available.
The `native.cgroupdriver` option specifies the management of the container's
cgroups. You can only specify `cgroupfs` or `systemd`. If you specify
`systemd` and it is not available, the system errors out. If you omit the
`native.cgroupdriver` option,` cgroupfs` is used.
`native.cgroupdriver` option,` cgroupfs` is used on cgroup v1 hosts, `systemd`
is used on cgroup v2 hosts with systemd available.
This example sets the `cgroupdriver` to `systemd`: