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fda65523fb
In some recent version evcc started requiring `getent` in the PATH, or else it would fail to start. It also now requires an sqlite database, which it tries to create a directory for at `$HOME/.evcc`, so we now need to provide a StateDirectory.
97 lines
2.3 KiB
Nix
97 lines
2.3 KiB
Nix
{ lib
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, pkgs
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, config
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, ...
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}:
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with lib;
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let
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cfg = config.services.evcc;
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format = pkgs.formats.yaml {};
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configFile = format.generate "evcc.yml" cfg.settings;
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package = pkgs.evcc;
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in
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{
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meta.maintainers = with lib.maintainers; [ hexa ];
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options.services.evcc = with types; {
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enable = mkEnableOption (lib.mdDoc "EVCC, the extensible EV Charge Controller with PV integration");
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extraArgs = mkOption {
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type = listOf str;
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default = [];
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description = lib.mdDoc ''
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Extra arguments to pass to the evcc executable.
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'';
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};
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settings = mkOption {
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type = format.type;
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description = lib.mdDoc ''
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evcc configuration as a Nix attribute set.
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Check for possible options in the sample [evcc.dist.yaml](https://github.com/andig/evcc/blob/${package.version}/evcc.dist.yaml].
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'';
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};
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};
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config = mkIf cfg.enable {
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systemd.services.evcc = {
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after = [
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"network-online.target"
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"mosquitto.target"
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];
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wantedBy = [
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"multi-user.target"
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];
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environment.HOME = "/var/lib/evcc";
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path = with pkgs; [
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glibc # requires getent
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];
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serviceConfig = {
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ExecStart = "${package}/bin/evcc --config ${configFile} ${escapeShellArgs cfg.extraArgs}";
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CapabilityBoundingSet = [ "" ];
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DeviceAllow = [
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"char-ttyUSB"
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];
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DevicePolicy = "closed";
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DynamicUser = true;
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LockPersonality = true;
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MemoryDenyWriteExecute = true;
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RestrictAddressFamilies = [
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"AF_INET"
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"AF_INET6"
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"AF_UNIX"
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];
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RestrictNamespaces = true;
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RestrictRealtime = true;
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PrivateTmp = true;
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PrivateUsers = true;
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ProcSubset = "pid";
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ProtectClock = true;
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ProtectControlGroups= true;
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ProtectHome = true;
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ProtectHostname = true;
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ProtectKernelLogs = true;
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ProtectKernelModules = true;
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ProtectKernelTunables = true;
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ProtectProc = "invisible";
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StateDirectory = "evcc";
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SystemCallArchitectures = "native";
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SystemCallFilter = [
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"@system-service"
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"~@privileged"
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];
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UMask = "0077";
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User = "evcc";
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};
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};
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};
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meta.buildDocsInSandbox = false;
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}
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