prometheus service: add
This is based on @benleys work: https://github.com/NixOS/nixpkgs/pull/8216 I updated changed the user and group ids.
This commit is contained in:
parent
29796bd989
commit
58869cf310
|
@ -275,6 +275,7 @@
|
||||||
gocd-server = 252;
|
gocd-server = 252;
|
||||||
terraria = 253;
|
terraria = 253;
|
||||||
mattermost = 254;
|
mattermost = 254;
|
||||||
|
prometheus = 255;
|
||||||
|
|
||||||
# When adding a uid, make sure it doesn't match an existing gid. And don't use uids above 399!
|
# When adding a uid, make sure it doesn't match an existing gid. And don't use uids above 399!
|
||||||
|
|
||||||
|
@ -520,6 +521,7 @@
|
||||||
gocd-server = 252;
|
gocd-server = 252;
|
||||||
terraria = 253;
|
terraria = 253;
|
||||||
mattermost = 254;
|
mattermost = 254;
|
||||||
|
prometheus = 255;
|
||||||
|
|
||||||
# When adding a gid, make sure it doesn't match an existing
|
# When adding a gid, make sure it doesn't match an existing
|
||||||
# uid. Users and groups with the same name should have equal
|
# uid. Users and groups with the same name should have equal
|
||||||
|
|
|
@ -286,6 +286,7 @@
|
||||||
./services/monitoring/monit.nix
|
./services/monitoring/monit.nix
|
||||||
./services/monitoring/munin.nix
|
./services/monitoring/munin.nix
|
||||||
./services/monitoring/nagios.nix
|
./services/monitoring/nagios.nix
|
||||||
|
./services/monitoring/prometheus.nix
|
||||||
./services/monitoring/riemann.nix
|
./services/monitoring/riemann.nix
|
||||||
./services/monitoring/riemann-dash.nix
|
./services/monitoring/riemann-dash.nix
|
||||||
./services/monitoring/riemann-tools.nix
|
./services/monitoring/riemann-tools.nix
|
||||||
|
|
418
nixos/modules/services/monitoring/prometheus.nix
Normal file
418
nixos/modules/services/monitoring/prometheus.nix
Normal file
|
@ -0,0 +1,418 @@
|
||||||
|
{ config, pkgs, lib, ... }:
|
||||||
|
|
||||||
|
with lib;
|
||||||
|
|
||||||
|
let
|
||||||
|
cfg = config.services.prometheus;
|
||||||
|
promUser = "prometheus";
|
||||||
|
promGroup = "prometheus";
|
||||||
|
|
||||||
|
# Get a submodule without any embedded metadata:
|
||||||
|
_filter = x: filterAttrs (k: v: k != "_module") x;
|
||||||
|
|
||||||
|
# Pretty-print JSON to a file
|
||||||
|
writePrettyJSON = name: x:
|
||||||
|
pkgs.runCommand name { } ''
|
||||||
|
echo '${builtins.toJSON x}' | ${pkgs.jq}/bin/jq . > $out
|
||||||
|
'';
|
||||||
|
|
||||||
|
# This becomes the main config file
|
||||||
|
promConfig = {
|
||||||
|
global = cfg.globalConfig;
|
||||||
|
rule_files = cfg.ruleFiles ++ [
|
||||||
|
(pkgs.writeText "prometheus.rules" (concatStringsSep "\n" cfg.rules))
|
||||||
|
];
|
||||||
|
scrape_configs = cfg.scrapeConfigs;
|
||||||
|
};
|
||||||
|
|
||||||
|
cmdlineArgs = cfg.extraFlags ++ [
|
||||||
|
"-storage.local.path=${cfg.dataDir}/metrics"
|
||||||
|
"-config.file=${writePrettyJSON "prometheus.yml" promConfig}"
|
||||||
|
"-web.listen-address=${cfg.listenAddress}"
|
||||||
|
];
|
||||||
|
|
||||||
|
promTypes.globalConfig = types.submodule {
|
||||||
|
options = {
|
||||||
|
scrape_interval = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
default = "1m";
|
||||||
|
description = ''
|
||||||
|
How frequently to scrape targets by default.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
|
||||||
|
scrape_timeout = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
default = "10s";
|
||||||
|
description = ''
|
||||||
|
How long until a scrape request times out.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
|
||||||
|
evaluation_interval = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
default = "1m";
|
||||||
|
description = ''
|
||||||
|
How frequently to evaluate rules by default.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
|
||||||
|
labels = mkOption {
|
||||||
|
type = types.attrsOf types.str;
|
||||||
|
default = {};
|
||||||
|
description = ''
|
||||||
|
The labels to add to any timeseries that this Prometheus instance
|
||||||
|
scrapes.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
promTypes.scrape_config = types.submodule {
|
||||||
|
options = {
|
||||||
|
job_name = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
description = ''
|
||||||
|
The job name assigned to scraped metrics by default.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
scrape_interval = mkOption {
|
||||||
|
type = types.nullOr types.str;
|
||||||
|
default = null;
|
||||||
|
description = ''
|
||||||
|
How frequently to scrape targets from this job. Defaults to the
|
||||||
|
globally configured default.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
scrape_timeout = mkOption {
|
||||||
|
type = types.nullOr types.str;
|
||||||
|
default = null;
|
||||||
|
description = ''
|
||||||
|
Per-target timeout when scraping this job. Defaults to the
|
||||||
|
globally configured default.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
metrics_path = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
default = "/metrics";
|
||||||
|
description = ''
|
||||||
|
The HTTP resource path on which to fetch metrics from targets.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
scheme = mkOption {
|
||||||
|
type = types.enum ["http" "https"];
|
||||||
|
default = "http";
|
||||||
|
description = ''
|
||||||
|
The URL scheme with which to fetch metrics from targets.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
basic_auth = mkOption {
|
||||||
|
type = types.nullOr (types.submodule {
|
||||||
|
options = {
|
||||||
|
username = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
description = ''
|
||||||
|
HTTP username
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
password = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
description = ''
|
||||||
|
HTTP password
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
};
|
||||||
|
});
|
||||||
|
default = null;
|
||||||
|
description = ''
|
||||||
|
Optional http login credentials for metrics scraping.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
dns_sd_configs = mkOption {
|
||||||
|
type = types.listOf promTypes.dns_sd_config;
|
||||||
|
default = [];
|
||||||
|
apply = x: map _filter x;
|
||||||
|
description = ''
|
||||||
|
List of DNS service discovery configurations.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
consul_sd_configs = mkOption {
|
||||||
|
type = types.listOf promTypes.consul_sd_config;
|
||||||
|
default = [];
|
||||||
|
apply = x: map _filter x;
|
||||||
|
description = ''
|
||||||
|
List of Consul service discovery configurations.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
file_sd_configs = mkOption {
|
||||||
|
type = types.listOf promTypes.file_sd_config;
|
||||||
|
default = [];
|
||||||
|
apply = x: map _filter x;
|
||||||
|
description = ''
|
||||||
|
List of file service discovery configurations.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
target_groups = mkOption {
|
||||||
|
type = types.listOf promTypes.target_group;
|
||||||
|
default = [];
|
||||||
|
apply = x: map _filter x;
|
||||||
|
description = ''
|
||||||
|
List of labeled target groups for this job.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
relabel_configs = mkOption {
|
||||||
|
type = types.listOf promTypes.relabel_config;
|
||||||
|
default = [];
|
||||||
|
apply = x: map _filter x;
|
||||||
|
description = ''
|
||||||
|
List of relabel configurations.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
promTypes.target_group = types.submodule {
|
||||||
|
options = {
|
||||||
|
targets = mkOption {
|
||||||
|
type = types.listOf types.str;
|
||||||
|
description = ''
|
||||||
|
The targets specified by the target group.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
labels = mkOption {
|
||||||
|
type = types.attrsOf types.str;
|
||||||
|
description = ''
|
||||||
|
Labels assigned to all metrics scraped from the targets.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
promTypes.dns_sd_config = types.submodule {
|
||||||
|
options = {
|
||||||
|
names = mkOption {
|
||||||
|
type = types.listOf types.str;
|
||||||
|
description = ''
|
||||||
|
A list of DNS SRV record names to be queried.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
refresh_interval = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
default = "30s";
|
||||||
|
description = ''
|
||||||
|
The time after which the provided names are refreshed.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
promTypes.consul_sd_config = types.submodule {
|
||||||
|
options = {
|
||||||
|
server = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
description = "Consul server to query.";
|
||||||
|
};
|
||||||
|
token = mkOption {
|
||||||
|
type = types.nullOr types.str;
|
||||||
|
description = "Consul token";
|
||||||
|
};
|
||||||
|
datacenter = mkOption {
|
||||||
|
type = types.nullOr types.str;
|
||||||
|
description = "Consul datacenter";
|
||||||
|
};
|
||||||
|
scheme = mkOption {
|
||||||
|
type = types.nullOr types.str;
|
||||||
|
description = "Consul scheme";
|
||||||
|
};
|
||||||
|
username = mkOption {
|
||||||
|
type = types.nullOr types.str;
|
||||||
|
description = "Consul username";
|
||||||
|
};
|
||||||
|
password = mkOption {
|
||||||
|
type = types.nullOr types.str;
|
||||||
|
description = "Consul password";
|
||||||
|
};
|
||||||
|
|
||||||
|
services = mkOption {
|
||||||
|
type = types.listOf types.str;
|
||||||
|
description = ''
|
||||||
|
A list of services for which targets are retrieved.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
tag_separator = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
default = ",";
|
||||||
|
description = ''
|
||||||
|
The string by which Consul tags are joined into the tag label.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
promTypes.file_sd_config = types.submodule {
|
||||||
|
options = {
|
||||||
|
names = mkOption {
|
||||||
|
type = types.listOf types.str;
|
||||||
|
description = ''
|
||||||
|
Patterns for files from which target groups are extracted. Refer
|
||||||
|
to the Prometheus documentation for permitted filename patterns
|
||||||
|
and formats.
|
||||||
|
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
refresh_interval = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
default = "30s";
|
||||||
|
description = ''
|
||||||
|
Refresh interval to re-read the files.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
promTypes.relabel_config = types.submodule {
|
||||||
|
options = {
|
||||||
|
source_labels = mkOption {
|
||||||
|
type = types.listOf types.str;
|
||||||
|
description = ''
|
||||||
|
The source labels select values from existing labels. Their content
|
||||||
|
is concatenated using the configured separator and matched against
|
||||||
|
the configured regular expression.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
separator = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
default = ";";
|
||||||
|
description = ''
|
||||||
|
Separator placed between concatenated source label values.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
target_label = mkOption {
|
||||||
|
type = types.nullOr types.str;
|
||||||
|
default = null;
|
||||||
|
description = ''
|
||||||
|
Label to which the resulting value is written in a replace action.
|
||||||
|
It is mandatory for replace actions.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
regex = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
description = ''
|
||||||
|
Regular expression against which the extracted value is matched.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
replacement = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
default = "";
|
||||||
|
description = ''
|
||||||
|
Replacement value against which a regex replace is performed if the
|
||||||
|
regular expression matches.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
action = mkOption {
|
||||||
|
type = types.enum ["replace" "keep" "drop"];
|
||||||
|
description = ''
|
||||||
|
Action to perform based on regex matching.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
in {
|
||||||
|
options = {
|
||||||
|
services.prometheus = {
|
||||||
|
|
||||||
|
enable = mkOption {
|
||||||
|
type = types.bool;
|
||||||
|
default = false;
|
||||||
|
description = ''
|
||||||
|
Enable the Prometheus monitoring daemon.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
|
||||||
|
listenAddress = mkOption {
|
||||||
|
type = types.str;
|
||||||
|
default = "0.0.0.0:9090";
|
||||||
|
description = ''
|
||||||
|
Address to listen on for the web interface, API, and telemetry.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
|
||||||
|
dataDir = mkOption {
|
||||||
|
type = types.path;
|
||||||
|
default = "/var/lib/prometheus";
|
||||||
|
description = ''
|
||||||
|
Directory to store Prometheus metrics data.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
|
||||||
|
extraFlags = mkOption {
|
||||||
|
type = types.listOf types.str;
|
||||||
|
default = [];
|
||||||
|
description = ''
|
||||||
|
Extra commandline options when launching Prometheus.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
|
||||||
|
globalConfig = mkOption {
|
||||||
|
type = promTypes.globalConfig;
|
||||||
|
default = {};
|
||||||
|
apply = _filter;
|
||||||
|
description = ''
|
||||||
|
Parameters that are valid in all configuration contexts. They
|
||||||
|
also serve as defaults for other configuration sections
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
|
||||||
|
rules = mkOption {
|
||||||
|
type = types.listOf types.str;
|
||||||
|
default = [];
|
||||||
|
description = ''
|
||||||
|
Alerting and/or Recording rules to evaluate at runtime.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
|
||||||
|
ruleFiles = mkOption {
|
||||||
|
type = types.listOf types.path;
|
||||||
|
default = [];
|
||||||
|
description = ''
|
||||||
|
Any additional rules files to include in this configuration.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
|
||||||
|
scrapeConfigs = mkOption {
|
||||||
|
type = types.listOf promTypes.scrape_config;
|
||||||
|
default = [];
|
||||||
|
apply = x: map _filter x;
|
||||||
|
description = ''
|
||||||
|
A list of scrape configurations.
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
config = mkIf cfg.enable {
|
||||||
|
users.extraGroups.${promGroup}.gid = config.ids.gids.prometheus;
|
||||||
|
users.extraUsers.${promUser} = {
|
||||||
|
description = "Prometheus daemon user";
|
||||||
|
uid = config.ids.uids.prometheus;
|
||||||
|
group = promGroup;
|
||||||
|
home = cfg.dataDir;
|
||||||
|
createHome = true;
|
||||||
|
};
|
||||||
|
systemd.services.prometheus = {
|
||||||
|
wantedBy = [ "multi-user.target" ];
|
||||||
|
after = [ "network.target" ];
|
||||||
|
script = ''
|
||||||
|
#!/bin/sh
|
||||||
|
exec ${pkgs.prometheus}/bin/prometheus \
|
||||||
|
${concatStringsSep " \\\n " cmdlineArgs}
|
||||||
|
'';
|
||||||
|
serviceConfig = {
|
||||||
|
User = promUser;
|
||||||
|
Restart = "always";
|
||||||
|
WorkingDirectory = cfg.dataDir;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
}
|
29
nixos/tests/prometheus.nix
Normal file
29
nixos/tests/prometheus.nix
Normal file
|
@ -0,0 +1,29 @@
|
||||||
|
import ./make-test.nix {
|
||||||
|
name = "prometheus";
|
||||||
|
|
||||||
|
nodes = {
|
||||||
|
one = { config, pkgs, ... }: {
|
||||||
|
services.prometheus = {
|
||||||
|
enable = true;
|
||||||
|
globalConfig = {
|
||||||
|
labels = { foo = "bar"; };
|
||||||
|
};
|
||||||
|
scrapeConfigs = [{
|
||||||
|
job_name = "prometheus";
|
||||||
|
target_groups = [{
|
||||||
|
targets = [ "127.0.0.1:9090" ];
|
||||||
|
labels = { instance = "localhost"; };
|
||||||
|
}];
|
||||||
|
}];
|
||||||
|
rules = [ ''testrule = count(up{job="prometheus"})'' ];
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
testScript = ''
|
||||||
|
startAll;
|
||||||
|
$one->waitForUnit("prometheus.service");
|
||||||
|
$one->waitForOpenPort(9090);
|
||||||
|
$one->succeed("curl -s http://127.0.0.1:9090/metrics");
|
||||||
|
'';
|
||||||
|
}
|
Loading…
Reference in a new issue