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systemd: switch to unified cgroup hierarchy by default

Browse Source 
See https://www.redhat.com/sysadmin/fedora-31-control-group-v2 for
details on why this is desirable, and how it impacts containers.

Users that need to keep using the old cgroup hierarchy can re-enable it
by setting `systemd.unifiedCgroupHierarchy` to `false`.

Well-known candidates not supporting that hierarchy, like docker and
hidepid=… will disable it automatically.

Fixes #73800
This commit is contained in:
Florian Klink
2020-11-17 21:54:26 +01:00
parent e949d75899
commit d22b3ed4bc
5 changed files with 32 additions and 3 deletions
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6
pkgs/os-specific/linux/systemd/default.nix
View File

@@ -281,9 +281,9 @@ stdenv.mkDerivation {
"-Dmount-path=${utillinux}/bin/mount"
"-Dumount-path=${utillinux}/bin/umount"
"-Dcreate-log-dirs=false"
# Upstream uses cgroupsv2 by default. To support docker and other
# container managers we still need v1.
"-Ddefault-hierarchy=hybrid"
# Use cgroupsv2. This is already the upstream default, but better be explicit.
"-Ddefault-hierarchy=unified"
# Upstream defaulted to disable manpages since they optimize for the much
# more frequent development builds
"-Dman=true"