tlaternet-server/configuration/services/metrics.nix

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2023-09-25 02:32:04 +01:00
{
config,
pkgs,
lib,
...
}: let
domain = "metrics.${config.services.nginx.domain}";
yaml = pkgs.formats.yaml {};
in {
services.victoriametrics.enable = true;
services.grafana = {
enable = true;
settings = {
server.http_port = 3001; # Default overlaps with gitea
security = {
admin_user = "tlater";
admin_password = "$__file{${config.sops.secrets."grafana/adminPassword".path}}";
secret_key = "$__file{${config.sops.secrets."grafana/secretKey".path}}";
cookie_secure = true;
cookie_samesite = "strict";
content_security_policy = true;
};
database = {
user = "grafana";
name = "grafana";
type = "postgres";
host = "/run/postgresql";
};
};
provision = {
enable = true;
datasources.settings.datasources = [
{
name = "Victoriametrics - tlater.net";
url = "http://localhost:8428";
type = "prometheus";
}
];
};
};
services.prometheus.exporters = {
node = {
enable = true;
enabledCollectors = ["systemd"];
listenAddress = "127.0.0.1";
};
};
systemd.services.export-to-victoriametrics = let
promscrape = yaml.generate "prometheus.yml" {
scrape_configs = [
{
job_name = "tlater.net";
static_configs = [
{
targets =
lib.mapAttrsToList (name: exporter: "${exporter.listenAddress}:${toString exporter.port}")
(lib.filterAttrs (name: exporter: (builtins.isAttrs exporter) && exporter.enable)
config.services.prometheus.exporters);
}
];
}
];
};
in {
enable = true;
path = [pkgs.victoriametrics];
wantedBy = ["multi-user.target"];
script = "vmagent -promscrape.config=${promscrape} -remoteWrite.url=http://localhost:8428/api/v1/write";
};
services.nginx.virtualHosts."${domain}" = {
forceSSL = true;
enableACME = true;
extraConfig = ''
add_header Strict-Transport-Security "max-age=15552000; includeSubDomains" always;
'';
locations."/".proxyPass = "http://localhost:3001";
};
}