* nixos/earlyoom: bring the module up to date
Removes deprecated option `ignoreOOMScoreAdjust`, introduces `killHook`
as a replacement for `notificationsCommand`, and adds an `extraArgs`
option for things not covered by the module.
* nixos/earlyoom: add nixos test
* nixos/earlyoom: add reportInterval
Allows setting the interval for logging a memory report. Defaults to
3600 following upstream
(https://github.com/rfjakob/earlyoom/blob/master/earlyoom.default#L5)
to avoid flooding logs.
* nixos/earlyoom: add free{Mem,Swap}KillThreshold
Fixes https://github.com/NixOS/nixpkgs/issues/83504
This adds the option `networking.wg-quick.interfaces.<name>.autostart`, which defaults to `true`, which is the previous behavior. With this option set to `false`, the systemd-unit will no longer be set to `wantedBy = [ "multi-user.target" ]` and therefore the tunnel has to be enabled/disabled via `systemctl start/stop wg-quick-<name>`.
Co-authored-by: pennae <82953136+pennae@users.noreply.github.com>
Use `recursiveUpdate` instead of the // operator, as recommended in https://nix.dev/anti-patterns/language#attr1-attr2-merge-operator. Without this change, setting `services.ipfs.extraConfig.Addresses.NoAnnounce` for example will cause `services.ipfs.apiAddress`, `services.ipfs.gatewayAddress` and `services.ipfs.swarmAddress` to be ignored.
The Nix-provided `nix-daemon.socket` file has a
> ConditionPathIsReadWrite=/nix/var/nix/daemon-socket/socket
line, to skip that unit if /nix/var/nix/daemon-socket/socket is
read-only (which is the case in some nixos-containers with that folder
bind-ro-mounted from the host).
In these cases, the unit was skipped.
Systemd 250 (rightfully) started to also skip in these cases:
> [ 237.187747] systemd[1]: Nix Daemon Socket was skipped because of a failed condition check (ConditionPathIsReadWrite=/nix/var/nix/daemon-socket).
However, systemd < 250 didn't skip if /nix/var/nix/daemon-socket/socket
didn't /exist at all/, and we were relying on this bug in the case for
fresh NixOS systems, to have /nix/var/nix/daemon-socket/socket created
initially.
Move the creation of that folder to systemd-tmpfiles, by shipping an
appropriate file in `${nixPackage}/lib/tmpfiles.d/nix-daemon.conf`
(NixOS/nix#6285).
In the meantime, set a systemd tmpfiles rule manually in NixOS.
This has been tested to still work with read-only bind-mounted
/nix/var/nix/daemon-socket/socket in containers, it'll keep them
read-only ;-)
For now at least. I expect someone will find a working type later.
It's incorrect and was causing bad issues. Example test case:
nix-instantiate nixos/release.nix -A tests.xfce.x86_64-linux --dry-run
This is a partial revert of commit b2d803c from PR #162271.
hostNames being deprecated makes configuring hosts with multiple keys a
pain. including the attr name of the entry in the host name list is a
nice convenience though, so we'll retain it and clarify the
documentation on how the actual host name list for an entry is put
together.
Currently it is only possible to add upstream _system_ units. The option
systemd.additionalUpstreamSystemUnits can be used for this.
However, this was not yet possible for systemd.user. In a similar
fashion this was added to systemd-user.nix.
This is intended to have other modules add upstream units.
Add an exception to the `paperless-ng-server` service's
`SystemCallFilter` as the `mbind` syscall is needed when consuming a
document while having a classification model present.
Since b9cfbcafdf0ca9573de1cdc06137c020e70e44a8, the lack of hexdump in
the closure lead to the generation of empty cookie files. This empty
cookie file is making pleroma to crash at startup now we correctly
read it.
We introduce a migration forcing these empty cookies to be
re-generated to something not empty.
We inject the release cookie path to the pleroma derivation in order
to wrap pleroma_ctl with it. Doing this allows us to remove the
systemd-injected RELEASE_COOKIE path, which was sadly
buggy (RELEASE_COOKIE should point to the *content* of the cookie, not
the file containing it).
We take advantage of this to factor out the cookie path.
Fixes race conditions like this:
> systemd[1]: Started prometheus-kea-exporter.service.
> kea-exporter[927]: Listening on http://0.0.0.0:9547
> kea-exporter[927]: Socket at /run/kea/dhcp4.sock does not exist. Is Kea running?
> systemd[1]: prometheus-kea-exporter.service: Main process exited, code=exited, status=1/FAILURE
It doesn't make sense to have a default value for this that's
incompatible with the default locate implementation. It means that
just doing services.locate.enable = true; generates a warning, even if
you don't care about pruning anything. So only use the default prune
list if the locate implementation supports it (i.e., isn't findutils).
If `services.tor.client.enable` is set to false (the default), the `SOCKSPort` option is not added to the torrc file but since Tor defaults to listening on port 9050 when the option is not specified, the tor client is not actually disabled. To fix this, simply set `SOCKSPort` to 0, which disables the client.
Use `mkForce` to prevent potentially two different `SOCKSPort` options in the torrc file, with one of them being 0 as this would cause Tor to fail to start. When `services.tor.client.enable` is set to false, this should always be disabled.
When `services.resolved.enable` is set to true, the file /etc/resolv.conf becomes a symlink to /etc/static/resolv.conf, which is a symlink to /run/systemd/resolve/stub-resolv.conf. Without this commit, tor does not have access to this file thanks to systemd confinement. This results in the following warning when tor starts:
```
[warn] Unable to stat resolver configuration in '/etc/resolv.conf': No such file or directory
[warn] Could not read your DNS config from '/etc/resolv.conf' - please investigate your DNS configuration. This is possibly a problem. Meanwhile, falling back to local DNS at 127.0.0.1.
```
To fix this, simply allow read-only access to the file when resolved is in use.
According to https://github.com/NixOS/nixpkgs/pull/161818#discussion_r824820462, the symlink may also point to /run/systemd/resolve/resolv.conf, so allow that as well.
Use a quoted heredoc to inject installBootLoader safely into the script,
and restore the previous invocation of `system` with a single argument so
that shell commands keep working.
Without this fix, evaluating a NixOS configuration with Tomcat enabled and the
default settings results in the following evaluation error:
Failed assertions:
- users.users.tomcat.group is unset. This used to default to
nogroup, but this is unsafe. For example you can create a group
for this user with:
users.users.tomcat.group = "tomcat";
users.groups.tomcat = {};
As of systemd/systemd@e908434458,
systemd-networkd now automatically configures routes to addresses
specified in AllowedIPs unless explicitly disabled with
"RouteTable=off".
As a novice to using this module, I found the existing description to be
quite misleading. It does not at all disable pulling from the registry,
it just loads some image archive that may or may not be related to the
container you're specifying. I had thought there was extra magic behind
this option, but it's just a `docker load`. You need foreknowledge of
the contents of the archive so that whatever it contained is actually
used to run the container.
I've reworded the description to hopefully make this behavior clearer.
This bug is so obscure and unlikely that I was honestly not able to
properly write a test for it. What happens is that we are calling
handleModifiedUnit() with $unitsToStart=\%unitsToRestart. We do this to
make sure that the unit is stopped before it's started again which is
not possible by regular means because the stop phase is already done
when calling the activation script.
recordUnit() still gets $startListFile, however which is the wrong file.
The bug would be triggered if an activation script requests a service
restart for a service that has `stopIfChanged = true` and
switch-to-configuration is killed before the restart phase was run. If
the script is run again, but the activation script is not requesting
more restarts, the unit would be started instead of restarted.
We spent a whole afternoon debugging this, because upstream has very
bad software quality and the error messages were incredibly
misleading.
So let’s document it for the sanity of other people.
Btw, I think the implementation of our module is pretty brittle,
especially the part about diffing tokens to check whether they
changed. We should rather just request a new builder registration
every time, it’s not that much overhead, and always set `replace` so
it is idempotent.
Some systems should not be rebooted at just any time. If the upgrade process takes too long, for instance because of a
slow internet connection, or if the upgrade service is ran during production hours, we want to allow to define a window
outside of which a reboot will not be performed.
The system will then reboot on the next run of the upgrade service which finishes inside the reboot window.
E.g. we can run the update service twice per week, once during the night and once during the day, but reboots are only
allowed during the night. By doing so, a system that is usually shut down during the night will still receive updates
and systems that are turned on 24/7 can be rebooted outside of production hours.
Co-authored-by: Silvan Mosberger <github@infinisil.com>
zsh-autosuggestions supports having fallback strategies expressed
through the ZSH_AUTOSUGGEST_STRATEGY array. For example,
`ZSH_AUTOSUGGEST_STRATEGY=(history completion)`. We should also support
this.
For systems without internet connections, it doesn't make sense to
require the existence of an /etc/resolv.conf file to disable
resolvconf, so let's expose networking.resolveconf.enable as a public
option that can be set to false.
When initializing a system (e.g. first boot / livecd) we have no good
reference source for time. systemd-timesyncd however would revert back
to its configured fallback time (in our case 01.01.1980). Since we
probably don't want to hardcode a specific date as fallback we are now
using the current system time (wherever that might have come from) to
initialize the reference clock file.
The only systems that might be remotely affected by this change are
machines that have highly unreliable RTCs or those where the battery
that backs the RTC is running empty.
Historically these systems always had a tough time with anything time
related and likely required manual intervention.
For stateless systems (those that wipe / between reboots or our
installer CDs) this has the consequence that time will always be reset
to whatever the system comes up with on boot. This is likely the correct
time coming from an RTC. No harm done here the situation is likely
unchanged for them.
For stateful systems (those that retain the / partition across reboots)
there shouldn't be a change at all. They'll provide an initial clock
value once on their lifetime (during first boot / after installation).
From then onwards systemd-timesyncd will update the file with the newer
fallback time (that will be picked up on the next boot).
In issue #157787 @martined wrote:
Trying to use confinement on packages providing their systemd units
with systemd.packages, for example mpd, fails with the following
error:
system-units> ln: failed to create symbolic link
'/nix/store/...-system-units/mpd.service': File exists
This is because systemd-confinement and mpd both provide a mpd.service
file through systemd.packages. (mpd got updated that way recently to
use upstream's service file)
To address this, we now place the unit file containing the bind-mounted
paths of the Nix closure into a drop-in directory instead of using the
name of a unit file directly.
This does come with the implication that the options set in the drop-in
directory won't apply if the main unit file is missing. In practice
however this should not happen for two reasons:
* The systemd-confinement module already sets additional options via
systemd.services and thus we should get a main unit file
* In the unlikely event that we don't get a main unit file regardless
of the previous point, the unit would be a no-op even if the options
of the drop-in directory would apply
Another thing to consider is the order in which those options are
merged, since systemd loads the files from the drop-in directory in
alphabetical order. So given that we have confinement.conf and
overrides.conf, the confinement options are loaded before the NixOS
overrides.
Since we're only setting the BindReadOnlyPaths option, the order isn't
that important since all those paths are merged anyway and we still
don't lose the ability to reset the option since overrides.conf comes
afterwards.
Fixes: https://github.com/NixOS/nixpkgs/issues/157787
Signed-off-by: aszlig <aszlig@nix.build>
