import ./make-test.nix ({ lib, pkgs, ... }: let escape' = str: lib.replaceChars [''"'' "$" "\n"] [''\\\"'' "\\$" ""] str; /* * The attrset `exporterTests` contains one attribute * for each exporter test. Each of these attributes * is expected to be an attrset containing: * * `exporterConfig`: * this attribute set contains config for the exporter itself * * `exporterTest` * this attribute set contains test instructions * * `metricProvider` (optional) * this attribute contains additional machine config * * Example: * exporterTests. = { * exporterConfig = { * enable = true; * }; * metricProvider = { * services..enable = true; * }; * exporterTest = '' * waitForUnit("prometheus--exporter.service"); * waitForOpenPort("1234"); * succeed("curl -sSf 'localhost:1234/metrics'"); * ''; * }; * * # this would generate the following test config: * * nodes. = { * services.prometheus. = { * enable = true; * }; * services..enable = true; * }; * * testScript = '' * $->start(); * $->waitForUnit("prometheus--exporter.service"); * $->waitForOpenPort("1234"); * $->succeed("curl -sSf 'localhost:1234/metrics'"); * $->shutdown(); * ''; */ exporterTests = { blackbox = { exporterConfig = { enable = true; configFile = pkgs.writeText "config.yml" (builtins.toJSON { modules.icmp_v6 = { prober = "icmp"; icmp.preferred_ip_protocol = "ip6"; }; }); }; exporterTest = '' waitForUnit("prometheus-blackbox-exporter.service"); waitForOpenPort(9115); succeed("curl -sSf 'http://localhost:9115/probe?target=localhost&module=icmp_v6' | grep -q 'probe_success 1'"); ''; }; collectd = { exporterConfig = { enable = true; extraFlags = [ "--web.collectd-push-path /collectd" ]; }; exporterTest =let postData = escape' '' [{ "values":[23], "dstypes":["gauge"], "type":"gauge", "interval":1000, "host":"testhost", "plugin":"testplugin", "time":$(date +%s) }] ''; in '' waitForUnit("prometheus-collectd-exporter.service"); waitForOpenPort(9103); succeed("curl -sSfH 'Content-Type: application/json' -X POST --data \"${postData}\" localhost:9103/collectd"); succeed("curl -sSf localhost:9103/metrics | grep -q 'collectd_testplugin_gauge{instance=\"testhost\"} 23'"); ''; }; dnsmasq = { exporterConfig = { enable = true; leasesPath = "/var/lib/dnsmasq/dnsmasq.leases"; }; metricProvider = { services.dnsmasq.enable = true; }; exporterTest = '' waitForUnit("prometheus-dnsmasq-exporter.service"); waitForOpenPort(9153); succeed("curl -sSf http://localhost:9153/metrics | grep -q 'dnsmasq_leases 0'"); ''; }; bind = { exporterConfig = { enable = true; }; metricProvider = { services.bind.enable = true; services.bind.extraConfig = '' statistics-channels { inet 127.0.0.1 port 8053 allow { localhost; }; }; ''; }; exporterTest = '' waitForUnit("prometheus-bind-exporter.service"); waitForOpenPort(9119); succeed("curl -sSf http://localhost:9119/metrics" | grep -q 'bind_query_recursions_total 0'); ''; }; dovecot = { exporterConfig = { enable = true; scopes = [ "global" ]; socketPath = "/var/run/dovecot2/old-stats"; user = "root"; # <- don't use user root in production }; metricProvider = { services.dovecot2.enable = true; }; exporterTest = '' waitForUnit("prometheus-dovecot-exporter.service"); waitForOpenPort(9166); succeed("curl -sSf http://localhost:9166/metrics | grep -q 'dovecot_up{scope=\"global\"} 1'"); ''; }; fritzbox = { # TODO add proper test case exporterConfig = { enable = true; }; exporterTest = '' waitForUnit("prometheus-fritzbox-exporter.service"); waitForOpenPort(9133); succeed("curl -sSf http://localhost:9133/metrics | grep -q 'fritzbox_exporter_collect_errors 0'"); ''; }; json = { exporterConfig = { enable = true; url = "http://localhost"; configFile = pkgs.writeText "json-exporter-conf.json" (builtins.toJSON [{ name = "json_test_metric"; path = "$.test"; }]); }; metricProvider = { systemd.services.prometheus-json-exporter.after = [ "nginx.service" ]; services.nginx = { enable = true; virtualHosts.localhost.locations."/".extraConfig = '' return 200 "{\"test\":1}"; ''; }; }; exporterTest = '' waitForUnit("nginx.service"); waitForOpenPort(80); waitForUnit("prometheus-json-exporter.service"); waitForOpenPort(7979); succeed("curl -sSf localhost:7979/metrics | grep -q 'json_test_metric 1'"); ''; }; nginx = { exporterConfig = { enable = true; }; metricProvider = { services.nginx = { enable = true; statusPage = true; virtualHosts."/".extraConfig = "return 204;"; }; }; exporterTest = '' waitForUnit("nginx.service") waitForUnit("prometheus-nginx-exporter.service") waitForOpenPort(9113) succeed("curl -sSf http://localhost:9113/metrics | grep -q 'nginx_up 1'") ''; }; node = { exporterConfig = { enable = true; }; exporterTest = '' waitForUnit("prometheus-node-exporter.service"); waitForOpenPort(9100); succeed("curl -sSf http://localhost:9100/metrics | grep -q 'node_exporter_build_info{.\\+} 1'"); ''; }; postfix = { exporterConfig = { enable = true; }; metricProvider = { services.postfix.enable = true; }; exporterTest = '' waitForUnit("prometheus-postfix-exporter.service"); waitForOpenPort(9154); succeed("curl -sSf http://localhost:9154/metrics | grep -q 'postfix_smtpd_connects_total 0'"); ''; }; snmp = { exporterConfig = { enable = true; configuration.default = { version = 2; auth.community = "public"; }; }; exporterTest = '' waitForUnit("prometheus-snmp-exporter.service"); waitForOpenPort(9116); succeed("curl -sSf localhost:9116/metrics | grep -q 'snmp_request_errors_total 0'"); ''; }; surfboard = { exporterConfig = { enable = true; modemAddress = "localhost"; }; metricProvider = { systemd.services.prometheus-surfboard-exporter.after = [ "nginx.service" ]; services.nginx = { enable = true; virtualHosts.localhost.locations."/cgi-bin/status".extraConfig = '' return 204; ''; }; }; exporterTest = '' waitForUnit("nginx.service"); waitForOpenPort(80); waitForUnit("prometheus-surfboard-exporter.service"); waitForOpenPort(9239); succeed("curl -sSf localhost:9239/metrics | grep -q 'surfboard_up 1'"); ''; }; tor = { exporterConfig = { enable = true; }; metricProvider = { # Note: this does not connect the test environment to the Tor network. # Client, relay, bridge or exit connectivity are disabled by default. services.tor.enable = true; services.tor.controlPort = 9051; }; exporterTest = '' waitForUnit("tor.service"); waitForOpenPort(9051); waitForUnit("prometheus-tor-exporter.service"); waitForOpenPort(9130); succeed("curl -sSf localhost:9130/metrics | grep -q 'tor_version{.\\+} 1'"); ''; }; varnish = { exporterConfig = { enable = true; instance = "/var/spool/varnish/varnish"; group = "varnish"; }; metricProvider = { systemd.services.prometheus-varnish-exporter.after = [ "varnish.service" ]; services.varnish = { enable = true; config = '' vcl 4.0; backend default { .host = "127.0.0.1"; .port = "80"; } ''; }; }; exporterTest = '' waitForUnit("prometheus-varnish-exporter.service"); waitForOpenPort(9131); succeed("curl -sSf http://localhost:9131/metrics | grep -q 'varnish_up 1'"); ''; }; }; nodes = lib.mapAttrs (exporter: testConfig: lib.mkMerge [{ services.prometheus.exporters.${exporter} = testConfig.exporterConfig; } testConfig.metricProvider or {}]) exporterTests; testScript = lib.concatStrings (lib.mapAttrsToList (exporter: testConfig: ('' subtest "${exporter}", sub { ${"$"+exporter}->start(); ${lib.concatStringsSep " " (map (line: '' ${"$"+exporter}->${line}; '') (lib.splitString "\n" (lib.removeSuffix "\n" testConfig.exporterTest)))} ${"$"+exporter}->shutdown(); }; '')) exporterTests); in { name = "prometheus-exporters"; inherit nodes testScript; meta = with lib.maintainers; { maintainers = [ willibutz ]; }; })