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{
inputs,
povSelf,
hostConfig,
config,
lib,
dnsNix,
...
}:
let
inherit (lib) types;
cfg = lib.getAttrFromPath povSelf config;
in
{
options = {
enable = {
type = types.bool;
default = false;
};
subdomain = {
type = types.str;
default = "prometheus.infra";
};
domain = {
type = types.str;
default = "zaphyra.eu";
};
};
config = lib.mkIf cfg.enable {
dns.zones."${cfg.domain}".subdomains."${cfg.subdomain}".CNAME = [ "${config.networking.fqdn}." ];
modules.filesystem.impermanence.system.dirs = [
{
directory = "/var/lib/prometheus2";
mode = "0700";
user = "prometheus";
group = "prometheus";
}
];
services.prometheus = {
enable = true;
webExternalUrl = "https://${cfg.subdomain}.${cfg.domain}/";
listenAddress = "[::1]";
port = 9090;
scrapeConfigs = [
{
job_name = "node-exporter";
scrape_interval = "30s";
scheme = "https";
metrics_path = "/node-exporter";
static_configs = [
{
targets = (
lib.mapAttrsToList (
name: host:
lib.mkIf (
host.config.services.prometheus.exporters.node.enable == true
&& host.config.networking.hostName != ""
&& host.config.networking.domain != ""
) host.config.networking.fqdn
) inputs.self.zaphyraHosts
);
}
];
}
{
job_name = "systemd-exporter";
scrape_interval = "30s";
scheme = "https";
metrics_path = "/systemd-exporter";
static_configs = [
{
targets = (
lib.mapAttrsToList (
name: host:
lib.mkIf (
host.config.services.prometheus.exporters.node.enable == true
&& host.config.networking.hostName != ""
&& host.config.networking.domain != ""
) host.config.networking.fqdn
) inputs.self.zaphyraHosts
);
}
];
}
];
};
services.nginx.virtualHosts."${cfg.subdomain}.${cfg.domain}" = {
useACMEHost = "${config.networking.fqdn}";
forceSSL = true;
kTLS = true;
locations."/".proxyPass = "http://[::1]:${toString config.services.prometheus.port}/";
};
};
}