79 lines
2.4 KiB
Nix
79 lines
2.4 KiB
Nix
{ config, lib, pkgs, options, ... }:
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let
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cfg = config.services.prometheus.exporters.imap-mailstat;
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valueToString = value:
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if (builtins.typeOf value == "string") then "\"${value}\""
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else (
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if (builtins.typeOf value == "int") then "${toString value}"
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else (
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if (builtins.typeOf value == "bool") then (if value then "true" else "false")
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else "XXX ${toString value}"
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)
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);
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inherit (lib)
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mkOption
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types
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concatStrings
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concatStringsSep
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attrValues
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mapAttrs
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optionalString
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;
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createConfigFile = accounts:
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# unfortunately on toTOML yet
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# https://github.com/NixOS/nix/issues/3929
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pkgs.writeText "imap-mailstat-exporter.conf" ''
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${concatStrings (attrValues (mapAttrs (name: config: "[[Accounts]]\nname = \"${name}\"\n${concatStrings (attrValues (mapAttrs (k: v: "${k} = ${valueToString v}\n") config))}") accounts))}
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'';
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mkOpt = type: description: mkOption {
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type = types.nullOr type;
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default = null;
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description = description;
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};
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accountOptions.options = {
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mailaddress = mkOpt types.str "Your email address (at the moment used as login name)";
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username = mkOpt types.str "If empty string mailaddress value is used";
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password = mkOpt types.str "";
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serveraddress = mkOpt types.str "mailserver name or address";
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serverport = mkOpt types.int "imap port number (at the moment only tls connection is supported)";
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starttls = mkOpt types.bool "set to true for using STARTTLS to start a TLS connection";
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};
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in
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{
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port = 8081;
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extraOpts = {
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oldestUnseenDate = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Enable metric with timestamp of oldest unseen mail
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'';
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};
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accounts = mkOption {
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type = types.attrsOf (types.submodule accountOptions);
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default = {};
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description = ''
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Accounts to monitor
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'';
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};
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configurationFile = mkOption {
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type = types.path;
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example = "/path/to/config-file";
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description = ''
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File containing the configuration
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'';
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};
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};
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serviceOpts = {
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serviceConfig = {
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ExecStart = ''
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${pkgs.prometheus-imap-mailstat-exporter}/bin/imap-mailstat-exporter \
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-config ${createConfigFile cfg.accounts} \
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${optionalString cfg.oldestUnseenDate "-oldestunseendate"} \
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${concatStringsSep " \\\n " cfg.extraFlags}
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'';
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};
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};
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}
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