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nixos/prometheus-postfix-exporter: set default group

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The postfix exporter needs to access postfix's `queue/public/` directory
to read the `showq` socket inside. Instead of making the public
directory world accessible, this sets the postfix exporter's group to
`postdrop` by default, when the postfix service is enabled.
This commit is contained in:
WilliButz 2018-07-06 21:13:13 +02:00 committed by Linus Heckemann
parent 1179840f9a
commit f412df1f6b
2 changed files with 11 additions and 0 deletions
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2
nixos/modules/services/monitoring/prometheus/exporters.nix
View file

@ -229,6 +229,8 @@ in
})] ++ [(mkIf config.services.nginx.enable {
systemd.services.prometheus-nginx-exporter.after = [ "nginx.service" ];
systemd.services.prometheus-nginx-exporter.requires = [ "nginx.service" ];
})] ++ [(mkIf config.services.postfix.enable {
services.prometheus.exporters.postfix.group = mkDefault config.services.postfix.setgidGroup;
})] ++ (mapAttrsToList (name: conf:
mkExporterConf {
inherit name;

9
nixos/modules/services/monitoring/prometheus/exporters/postfix.nix
View file

@ -8,6 +8,15 @@ in
{
port = 9154;
extraOpts = {
group = mkOption {
type = types.str;
description = ''
Group under which the postfix exporter shall be run.
It should match the group that is allowed to access the
<literal>showq</literal> socket in the <literal>queue/public/</literal> directory.
Defaults to <literal>services.postfix.setgidGroup</literal> when postfix is enabled.
'';
};
telemetryPath = mkOption {
type = types.str;
default = "/metrics";