Netdata is critically dependent on working wrappers, thus, we ensure that the service was successful.
Signed-off-by: Raito Bezarius <masterancpp@gmail.com>
This option furthers the "zero configuration" reputation of netdata by collecting
some Python packages available in nixpkgs and offering them to the module.
It is disabled by default.
Signed-off-by: Raito Bezarius <masterancpp@gmail.com>
Netdata is zero-config, so we should provide some *default* packages.
If the closure size is a problem for you, reach out to maintainers.
Signed-off-by: Raito Bezarius <masterancpp@gmail.com>
This adds a NixOS module for Grafana Alloy.
I started from the grafana-agent one but dropped all settings and config
management whatsoever.
Grafana Alloy uses its own Alloy config format (similar to HCL), which
is not really possible to express in Nix.
Simply pointing to a path in `/etc`, and leaving it up to the user to configure
it via `environment.etc` allows the user to arrange config files however
it makes most sense for them.
The module, systemd unit etc is called "alloy", not "grafana-alloy" to
follow the way it's packaged on other distros, to follow POLA.
This is a follow-up to 8d7f3c9dbd and
ae48735c53.
Running the config validation in the build sandbox is impossible and
will fail when using `cfg.configFile` or `-config.expand-env=true`.
`cfg.configFile` is a string of a path which is simply not available to
the build sandbox.
Similarly, one may opt to use `cfg.configuration` with environment
variables in combination with `-config.expand-env=true`.
The environment variables referenced that way are also not available
in the build sandbox.
So we skip the validation when it's impossible (`cfg.configFile`) or
likely impossible (`-config.expand-env=true`).
An alternative approach would be something like nixos/prometheus'
`services.prometheus.checkConfig` that takes a boolean and makes
toggling the config validation user-facing.
Previously evaluaton would fail if `smtp.to` was not set, since the
default case was not handled.
With the current versions of the python elasticsearch libraries, any
configuration containing the modules default would fail since it's not a
valid URL.
The issue adressed in #279068 is also adressed, thuse closes#279068.
Fixes issues described in #208242 for this part of the nixpkgs tree.
There are no behavioral changes in this, it only adjusts the code so
that it is easier to understand.
these changes were generated with nixq 0.0.2, by running
nixq ">> lib.mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
nixq ">> mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix
nixq ">> Inherit >> mdDoc[remove]" --batchmode nixos/**.nix
two mentions of the mdDoc function remain in nixos/, both of which
are inside of comments.
Since lib.mdDoc is already defined as just id, this commit is a no-op as
far as Nix (and the built manual) is concerned.
Environment variables in the alertmanager config are substituted using
envsubst. It is therefore necessary to escape $ as $$ in the config, if it
should be preserved.
The main idea behind that was to be able to do more sophisticated
merging for stuff that goes into `postgresql.conf`:
`shared_preload_libraries` is a comma-separated list in a `types.str`
and thus not mergeable. With this change, the option accepts both a
comma-separated string xor a list of strings.
This can be implemented rather quick using `coercedTo` +
freeform modules. The interface still behaves equally, but it allows to
merge declarations for this option together.
One side-effect was that I had to change the `attrsOf (oneOf ...)` part into
a submodule to allow declaring options for certain things. While at it,
I decided to move `log_line_prefix` and `port` into this structure as
well.
- Make the token a required option
- Drop the proto from the listen parameter
- Use systemd credentials to pass the token file
- Drop debug flag, use extraArgs instead
- Actually hook up extraArgs
- Escape shell arguments
- Drop overly broad `with lib` statement
This is introduced and enabled by default because the config syntax for
the exporter changed with release 0.23.0.
This should make the breaking config change obvious before services are
deployed with an incompatible old config.
The check is based on the check present in the blackbox-exporter module.
This reverts commit 413011ddf4.
Using separate lockfile directories prevents the different kea daemons
from using the interprocess sync lockfile.
Keeping the runtime directory around might be the better approach.
This is necessary to allow the usbhid driver to successfully send
commands to the attached UPS.
It is possible to work around this by explicitly using setting the user
flag (e.g. `upsdrvctl -u root shutdown`), though it is much simpler to
install the udev rules rather than patch things further.
Deprecation warning: The standalone 'grafana-server' program is deprecated and will be removed in the future. Please update all uses of 'grafana-server' to 'grafana server'
The error message was:
msg="Failed to read plugin provisioning files from directory" path=/nix/store/gs2cy8n6ndsa1f7msf7ndl8f85xl1pzg-grafana-provisioning/plugins
error="open /nix/store/gs2cy8n6ndsa1f7msf7ndl8f85xl1pzg-grafana-provisioning/plugins: no such file or directory"
Closes#216989
First of all, a bit of context: in PostgreSQL, newly created users don't
have the CREATE privilege on the public schema of a database even with
`ALL PRIVILEGES` granted via `ensurePermissions` which is how most of
the DB users are currently set up "declaratively"[1]. This means e.g. a
freshly deployed Nextcloud service will break early because Nextcloud
itself cannot CREATE any tables in the public schema anymore.
The other issue here is that `ensurePermissions` is a mere hack. It's
effectively a mixture of SQL code (e.g. `DATABASE foo` is relying on how
a value is substituted in a query. You'd have to parse a subset of SQL
to actually know which object are permissions granted to for a user).
After analyzing the existing modules I realized that in every case with
a single exception[2] the UNIX system user is equal to the db user is
equal to the db name and I don't see a compelling reason why people
would change that in 99% of the cases. In fact, some modules would even
break if you'd change that because the declarations of the system user &
the db user are mixed up[3].
So I decided to go with something new which restricts the ways to use
`ensure*` options rather than expanding those[4]. Effectively this means
that
* The DB user _must_ be equal to the DB name.
* Permissions are granted via `ensureDBOwnerhip` for an attribute-set in
`ensureUsers`. That way, the user is actually the owner and can
perform `CREATE`.
* For such a postgres user, a database must be declared in
`ensureDatabases`.
For anything else, a custom state management should be implemented. This
can either be `initialScript`, doing it manual, outside of the module or
by implementing proper state management for postgresql[5], but the
current state of `ensure*` isn't even declarative, but a convergent tool
which is what Nix actually claims to _not_ do.
Regarding existing setups: there are effectively two options:
* Leave everything as-is (assuming that system user == db user == db
name): then the DB user will automatically become the DB owner and
everything else stays the same.
* Drop the `createDatabase = true;` declarations: nothing will change
because a removal of `ensure*` statements is ignored, so it doesn't
matter at all whether this option is kept after the first deploy (and
later on you'd usually restore from backups anyways).
The DB user isn't the owner of the DB then, but for an existing setup
this is irrelevant because CREATE on the public schema isn't revoked
from existing users (only not granted for new users).
[1] not really declarative though because removals of these statements
are simply ignored for instance: https://github.com/NixOS/nixpkgs/issues/206467
[2] `services.invidious`: I removed the `ensure*` part temporarily
because it IMHO falls into the category "manage the state on your
own" (see the commit message). See also
https://github.com/NixOS/nixpkgs/pull/265857
[3] e.g. roundcube had `"DATABASE ${cfg.database.username}" = "ALL PRIVILEGES";`
[4] As opposed to other changes that are considered a potential fix, but
also add more things like collation for DBs or passwords that are
_never_ touched again when changing those.
[5] As suggested in e.g. https://github.com/NixOS/nixpkgs/issues/206467
https://learn.netdata.cloud/docs/logs/systemd-journal/
need acces to
Kernel Logs (dmesg):
Capability: CAP_SYSLOG
Description: This capability allows the program to read kernel logs using the dmesg command or by reading the /dev/kmsg file.
System Logs (e.g., /var/log/syslog):
Capability: CAP_DAC_READ_SEARCH
Description: This capability allows the program to read system logs located in directories such as /var/log/.
User Logs (e.g., /var/log/auth.log):
Capability: CAP_DAC_READ_SEARCH
Description: This capability allows the program to read user logs located in directories such as /var/log/.
Kea may clean the runtime directory when starting (or maybe systemd does
it). I ran into this issue when restarting Kea after changing its
configuration, so I think the fact it normally doesn't clean it is a
race condition (it's cleaned on service start, and normally all Kea
services start at roughly the same time).
The previous implementation works fine when the plugins do not already
contain store paths, which is the case for stuff from munin-contrib.
However, for plugins generated via nix (e.g. with writeShellScriptBin),
it tries to fix the paths in it which already point to the nix store,
ruining everything.
If extraAutoPlugins contains values that carry context (e.g. it comes
from a flake input), the keys generated from them using baseNameOf
inherit that context and the config doesn't compile.
This doesn't actually need to be an attrset anyways, so a bit of
internal refactoring lets us fix this without changing the visible API.
The new exporter has proper console scripts definition, that sets up
another executable name.
The package now also shells out to pidof, which is why we require procps
in the unit PATH.
follow-up on 28b3156bc6 which broke
when tokenFile was left empty.
Making both options nullable also allows us to provide a more meaningful
error message when neither authentication method is configured.
The problem we had back then was that `mkRenamedOptionModule` doesn't
work if an option will be moved a level depper, i.e.
services.grafana.provision.dashboards
became
services.grafana.provision.dashboards.settings.provider
I actually planned to remove this before 23.05 (since the change was
already released in 22.11), but as you can see that didn't happen ;-)
I think the grace-period was quite long already. And if someone is
migrating from <22.11 to a current NixOS now, there are very precise
instructions on how to upgrade in the 22.11 release notes.
Having undisclosed recipients results in emails being considered spam as mentioned in #192147, by instead identifying the recipient the emails are no longer considered spam
Netdata creates its control socket at /tmp/netdata-ipc by default, which
is insecure and actually inaccessible with systemd's PrivateTmp enabled.
Originally we patched its source code to move the socket to
/run/netdata/ipc. However, it was removed due to incompatibility when
upgrading to v1.41.0: 1d2a2dc7d0
Fortunately, this new version of netdata adds support for setting the
location of the control socket via the environment variable
NETDATA_PIPENAME. So let's set it for the netdata service and the
command line utility so that they can communicate properly.
Because the local database is used by the osquery deamon, running
osqueri fails with:
IO error: While lock file: /var/lib/osquery/osquery.db/LOCK: Resource temporarily unavailable
