mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-25 15:11:35 +00:00
430 lines
13 KiB
Nix
430 lines
13 KiB
Nix
{ system ? builtins.currentSystem
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, config ? {}
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, pkgs ? import ../.. { inherit system config; }
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}:
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let
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inherit (import ../lib/testing.nix { inherit system pkgs; }) makeTest;
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inherit (pkgs.lib) concatStringsSep maintainers mapAttrs mkMerge
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removeSuffix replaceChars singleton splitString;
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escape' = str: replaceChars [''"'' "$" "\n"] [''\\\"'' "\\$" ""] str;
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/*
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* The attrset `exporterTests` contains one attribute
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* for each exporter test. Each of these attributes
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* is expected to be an attrset containing:
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*
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* `exporterConfig`:
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* this attribute set contains config for the exporter itself
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*
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* `exporterTest`
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* this attribute set contains test instructions
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*
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* `metricProvider` (optional)
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* this attribute contains additional machine config
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*
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* Example:
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* exporterTests.<exporterName> = {
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* exporterConfig = {
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* enable = true;
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* };
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* metricProvider = {
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* services.<metricProvider>.enable = true;
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* };
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* exporterTest = ''
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* waitForUnit("prometheus-<exporterName>-exporter.service");
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* waitForOpenPort("1234");
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* succeed("curl -sSf 'localhost:1234/metrics'");
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* '';
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* };
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*
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* # this would generate the following test config:
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*
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* nodes.<exporterName> = {
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* services.prometheus.<exporterName> = {
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* enable = true;
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* };
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* services.<metricProvider>.enable = true;
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* };
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*
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* testScript = ''
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* $<exporterName>->start();
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* $<exporterName>->waitForUnit("prometheus-<exporterName>-exporter.service");
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* $<exporterName>->waitForOpenPort("1234");
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* $<exporterName>->succeed("curl -sSf 'localhost:1234/metrics'");
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* $<exporterName>->shutdown();
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* '';
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*/
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exporterTests = {
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bind = {
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exporterConfig = {
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enable = true;
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};
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metricProvider = {
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services.bind.enable = true;
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services.bind.extraConfig = ''
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statistics-channels {
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inet 127.0.0.1 port 8053 allow { localhost; };
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};
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'';
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};
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exporterTest = ''
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waitForUnit("prometheus-bind-exporter.service");
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waitForOpenPort(9119);
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succeed("curl -sSf http://localhost:9119/metrics | grep -q 'bind_query_recursions_total 0'");
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'';
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};
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blackbox = {
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exporterConfig = {
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enable = true;
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configFile = pkgs.writeText "config.yml" (builtins.toJSON {
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modules.icmp_v6 = {
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prober = "icmp";
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icmp.preferred_ip_protocol = "ip6";
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};
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});
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};
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exporterTest = ''
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waitForUnit("prometheus-blackbox-exporter.service");
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waitForOpenPort(9115);
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succeed("curl -sSf 'http://localhost:9115/probe?target=localhost&module=icmp_v6' | grep -q 'probe_success 1'");
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'';
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};
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collectd = {
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exporterConfig = {
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enable = true;
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extraFlags = [ "--web.collectd-push-path /collectd" ];
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};
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exporterTest =let postData = escape' ''
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[{
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"values":[23],
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"dstypes":["gauge"],
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"type":"gauge",
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"interval":1000,
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"host":"testhost",
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"plugin":"testplugin",
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"time":$(date +%s)
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}]
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''; in ''
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waitForUnit("prometheus-collectd-exporter.service");
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waitForOpenPort(9103);
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succeed("curl -sSfH 'Content-Type: application/json' -X POST --data \"${postData}\" localhost:9103/collectd");
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succeed("curl -sSf localhost:9103/metrics | grep -q 'collectd_testplugin_gauge{instance=\"testhost\"} 23'");
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'';
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};
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dnsmasq = {
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exporterConfig = {
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enable = true;
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leasesPath = "/var/lib/dnsmasq/dnsmasq.leases";
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};
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metricProvider = {
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services.dnsmasq.enable = true;
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};
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exporterTest = ''
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waitForUnit("prometheus-dnsmasq-exporter.service");
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waitForOpenPort(9153);
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succeed("curl -sSf http://localhost:9153/metrics | grep -q 'dnsmasq_leases 0'");
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'';
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};
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dovecot = {
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exporterConfig = {
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enable = true;
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scopes = [ "global" ];
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socketPath = "/var/run/dovecot2/old-stats";
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user = "root"; # <- don't use user root in production
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};
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metricProvider = {
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services.dovecot2.enable = true;
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};
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exporterTest = ''
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waitForUnit("prometheus-dovecot-exporter.service");
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waitForOpenPort(9166);
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succeed("curl -sSf http://localhost:9166/metrics | grep -q 'dovecot_up{scope=\"global\"} 1'");
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'';
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};
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fritzbox = { # TODO add proper test case
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exporterConfig = {
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enable = true;
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};
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exporterTest = ''
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waitForUnit("prometheus-fritzbox-exporter.service");
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waitForOpenPort(9133);
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succeed("curl -sSf http://localhost:9133/metrics | grep -q 'fritzbox_exporter_collect_errors 0'");
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'';
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};
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json = {
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exporterConfig = {
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enable = true;
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url = "http://localhost";
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configFile = pkgs.writeText "json-exporter-conf.json" (builtins.toJSON [{
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name = "json_test_metric";
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path = "$.test";
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}]);
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};
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metricProvider = {
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systemd.services.prometheus-json-exporter.after = [ "nginx.service" ];
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services.nginx = {
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enable = true;
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virtualHosts.localhost.locations."/".extraConfig = ''
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return 200 "{\"test\":1}";
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'';
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};
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};
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exporterTest = ''
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waitForUnit("nginx.service");
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waitForOpenPort(80);
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waitForUnit("prometheus-json-exporter.service");
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waitForOpenPort(7979);
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succeed("curl -sSf localhost:7979/metrics | grep -q 'json_test_metric 1'");
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'';
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};
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mail = {
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exporterConfig = {
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enable = true;
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configuration = {
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monitoringInterval = "2s";
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mailCheckTimeout = "10s";
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servers = [ {
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name = "testserver";
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server = "localhost";
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port = 25;
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from = "mail-exporter@localhost";
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to = "mail-exporter@localhost";
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detectionDir = "/var/spool/mail/mail-exporter/new";
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} ];
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};
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};
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metricProvider = {
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services.postfix.enable = true;
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systemd.services.prometheus-mail-exporter = {
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after = [ "postfix.service" ];
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requires = [ "postfix.service" ];
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preStart = ''
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mkdir -p 0600 mail-exporter/new
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'';
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serviceConfig = {
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ProtectHome = true;
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ReadOnlyPaths = "/";
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ReadWritePaths = "/var/spool/mail";
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WorkingDirectory = "/var/spool/mail";
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};
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};
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users.users.mailexporter.isSystemUser = true;
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};
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exporterTest = ''
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waitForUnit("postfix.service")
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waitForUnit("prometheus-mail-exporter.service")
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waitForOpenPort(9225)
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waitUntilSucceeds("curl -sSf http://localhost:9225/metrics | grep -q 'mail_deliver_success{configname=\"testserver\"} 1'")
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'';
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};
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nginx = {
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exporterConfig = {
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enable = true;
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};
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metricProvider = {
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services.nginx = {
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enable = true;
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statusPage = true;
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virtualHosts."/".extraConfig = "return 204;";
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};
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};
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exporterTest = ''
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waitForUnit("nginx.service")
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waitForUnit("prometheus-nginx-exporter.service")
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waitForOpenPort(9113)
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succeed("curl -sSf http://localhost:9113/metrics | grep -q 'nginx_up 1'")
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'';
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};
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node = {
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exporterConfig = {
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enable = true;
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};
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exporterTest = ''
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waitForUnit("prometheus-node-exporter.service");
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waitForOpenPort(9100);
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succeed("curl -sSf http://localhost:9100/metrics | grep -q 'node_exporter_build_info{.\\+} 1'");
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'';
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};
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postfix = {
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exporterConfig = {
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enable = true;
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};
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metricProvider = {
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services.postfix.enable = true;
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};
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exporterTest = ''
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waitForUnit("prometheus-postfix-exporter.service");
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waitForOpenPort(9154);
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succeed("curl -sSf http://localhost:9154/metrics | grep -q 'postfix_smtpd_connects_total 0'");
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'';
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};
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postgres = {
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exporterConfig = {
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enable = true;
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runAsLocalSuperUser = true;
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};
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metricProvider = {
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services.postgresql.enable = true;
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};
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exporterTest = ''
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waitForUnit("prometheus-postgres-exporter.service");
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waitForOpenPort(9187);
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waitForUnit("postgresql.service");
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succeed("curl -sSf http://localhost:9187/metrics | grep -q 'pg_exporter_last_scrape_error 0'");
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succeed("curl -sSf http://localhost:9187/metrics | grep -q 'pg_up 1'");
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systemctl("stop postgresql.service");
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succeed("curl -sSf http://localhost:9187/metrics | grep -qv 'pg_exporter_last_scrape_error 0'");
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succeed("curl -sSf http://localhost:9187/metrics | grep -q 'pg_up 0'");
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systemctl("start postgresql.service");
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waitForUnit("postgresql.service");
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succeed("curl -sSf http://localhost:9187/metrics | grep -q 'pg_exporter_last_scrape_error 0'");
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succeed("curl -sSf http://localhost:9187/metrics | grep -q 'pg_up 1'");
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'';
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};
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snmp = {
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exporterConfig = {
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enable = true;
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configuration.default = {
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version = 2;
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auth.community = "public";
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};
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};
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exporterTest = ''
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waitForUnit("prometheus-snmp-exporter.service");
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waitForOpenPort(9116);
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succeed("curl -sSf localhost:9116/metrics | grep -q 'snmp_request_errors_total 0'");
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'';
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};
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surfboard = {
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exporterConfig = {
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enable = true;
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modemAddress = "localhost";
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};
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metricProvider = {
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systemd.services.prometheus-surfboard-exporter.after = [ "nginx.service" ];
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services.nginx = {
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enable = true;
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virtualHosts.localhost.locations."/cgi-bin/status".extraConfig = ''
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return 204;
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'';
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};
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};
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exporterTest = ''
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waitForUnit("nginx.service");
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waitForOpenPort(80);
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waitForUnit("prometheus-surfboard-exporter.service");
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waitForOpenPort(9239);
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succeed("curl -sSf localhost:9239/metrics | grep -q 'surfboard_up 1'");
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'';
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};
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tor = {
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exporterConfig = {
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enable = true;
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};
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metricProvider = {
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# Note: this does not connect the test environment to the Tor network.
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# Client, relay, bridge or exit connectivity are disabled by default.
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services.tor.enable = true;
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services.tor.controlPort = 9051;
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};
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exporterTest = ''
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waitForUnit("tor.service");
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waitForOpenPort(9051);
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waitForUnit("prometheus-tor-exporter.service");
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waitForOpenPort(9130);
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succeed("curl -sSf localhost:9130/metrics | grep -q 'tor_version{.\\+} 1'");
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'';
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};
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varnish = {
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exporterConfig = {
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enable = true;
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instance = "/var/spool/varnish/varnish";
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group = "varnish";
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};
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metricProvider = {
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systemd.services.prometheus-varnish-exporter.after = [
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"varnish.service"
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];
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services.varnish = {
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enable = true;
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config = ''
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vcl 4.0;
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backend default {
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.host = "127.0.0.1";
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.port = "80";
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}
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'';
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};
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};
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exporterTest = ''
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waitForUnit("prometheus-varnish-exporter.service");
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waitForOpenPort(6081);
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waitForOpenPort(9131);
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succeed("curl -sSf http://localhost:9131/metrics | grep -q 'varnish_up 1'");
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'';
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};
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wireguard = let snakeoil = import ./wireguard/snakeoil-keys.nix; in {
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exporterConfig.enable = true;
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metricProvider = {
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networking.wireguard.interfaces.wg0 = {
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ips = [ "10.23.42.1/32" "fc00::1/128" ];
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listenPort = 23542;
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inherit (snakeoil.peer0) privateKey;
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peers = singleton {
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allowedIPs = [ "10.23.42.2/32" "fc00::2/128" ];
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inherit (snakeoil.peer1) publicKey;
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};
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};
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systemd.services.prometheus-wireguard-exporter.after = [ "wireguard-wg0.service" ];
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};
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exporterTest = ''
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waitForUnit("prometheus-wireguard-exporter.service");
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waitForOpenPort(9586);
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waitUntilSucceeds("curl -sSf http://localhost:9586/metrics | grep '${snakeoil.peer1.publicKey}'");
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'';
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};
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};
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in
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mapAttrs (exporter: testConfig: (makeTest {
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name = "prometheus-${exporter}-exporter";
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nodes.${exporter} = mkMerge [{
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services.prometheus.exporters.${exporter} = testConfig.exporterConfig;
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} testConfig.metricProvider or {}];
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testScript = ''
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${"$"+exporter}->start();
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${concatStringsSep " " (map (line: ''
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${"$"+exporter}->${line};
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'') (splitString "\n" (removeSuffix "\n" testConfig.exporterTest)))}
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${"$"+exporter}->shutdown();
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'';
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meta = with maintainers; {
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maintainers = [ willibutz ];
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};
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})) exporterTests
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