ops/nixos: add ability to define additional things to be scraped, use this for coredns
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588a47e97f
commit
26352c7065
3 changed files with 22 additions and 9 deletions
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@ -23,16 +23,24 @@ let
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systemDrvs = mapAttrs (_: sys: sys.config.system.build.toplevel) evaledSystems;
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systemTailscaleIPs = lib.mapAttrs' (n: v: lib.nameValuePair v [n]) (lib.filterAttrs (n: v: v != null) (mapAttrs (_: sys: sys.config.my.ip.tailscale) evaledSystems));
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systemExporters = builtins.listToAttrs (builtins.concatLists (lib.mapAttrsToList (sysName: sys: lib.mapAttrsToList (exporterName: exporter: let jobName = "${sysName}/exporters/${exporterName}"; in lib.nameValuePair jobName {
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job_name = jobName;
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static_configs = [{
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targets = ["${sysName}:${toString exporter.port}"];
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labels = {
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system = sysName;
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exporter = exporterName;
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systemExporters = let
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exportersForSystem = sysName: sys: let
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mkExporter = exporterName: exporterPort: let jobName = "${sysName}/exporters/${exporterName}"; in lib.nameValuePair jobName {
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job_name = jobName;
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static_configs = [{
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targets = ["${sysName}:${toString exporterPort}"];
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labels = {
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system = sysName;
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exporter = exporterName;
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};
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}];
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};
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}];
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}) (lib.filterAttrs (_: exporter: exporter.enable) sys.config.services.prometheus.exporters)) evaledSystems));
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stockExporters = lib.mapAttrsToList (exporterName: exporter: mkExporter exporterName exporter.port) (lib.filterAttrs (_: exporter: exporter.enable) sys.config.services.prometheus.exporters);
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customExporters = lib.mapAttrsToList mkExporter sys.config.my.prometheus.additionalExporterPorts;
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in
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stockExporters ++ customExporters;
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in
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builtins.listToAttrs (builtins.concatLists (lib.mapAttrsToList exportersForSystem evaledSystems));
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in systemDrvs // {
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systems = systemDrvs;
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systemExporters = systemExporters;
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@ -17,6 +17,10 @@ in
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type = lib.types.nullOr lib.types.anything;
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default = null;
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};
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options.my.prometheus.additionalExporterPorts = lib.mkOption {
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type = lib.types.attrsOf lib.types.port;
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default = {};
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};
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options.my.ip.tailscale = lib.mkOption {
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type = lib.types.nullOr lib.types.string;
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@ -209,6 +209,7 @@ in {
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}
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'';
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};
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my.prometheus.additionalExporterPorts.coredns = 9153;
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networking.resolvconf.extraConfig = ''
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name_servers='127.0.0.53'
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'';
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