69 lines
1.6 KiB
Nix
Executable File
69 lines
1.6 KiB
Nix
Executable File
{
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config,
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lib,
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pkgs,
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namespace,
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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.${namespace}.services.crowdsec;
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in
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{
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imports = [ ./options.nix ];
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config = lib.mkIf cfg.enable {
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services = {
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crowdsec =
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let
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yaml = (pkgs.formats.yaml { }).generate;
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acquisitions_file = yaml "acquisitions.yaml" {
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source = "journalctl";
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journalctl_filter = [ "_SYSTEMD_UNIT=sshd.service" ];
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labels.type = "syslog";
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};
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in
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{
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enable = true;
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enrollKeyFile = "${cfg.dataDir}/enroll.key";
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settings = {
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crowdsec_service.acquisition_path = acquisitions_file;
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api.server = {
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listen_uri = "0.0.0.0:${toString cfg.port}";
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};
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};
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};
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crowdsec-firewall-bouncer = {
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enable = true;
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settings = {
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api_key = cfg.apiKey;
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api_url = "http://${cfg.apiAddress}:${toString cfg.port}";
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};
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};
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};
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systemd.services.crowdsec.serviceConfig = {
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ExecStartPre =
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let
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script = pkgs.writeScriptBin "register-bouncer" ''
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#!${pkgs.runtimeShell}
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set -eu
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set -o pipefail
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if ! cscli bouncers list | grep -q "nas-bouncer"; then
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cscli bouncers add "nas-bouncer" --key "${cfg.apiKey}"
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fi
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'';
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in
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[ "${script}/bin/register-bouncer" ];
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};
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networking = {
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firewall = {
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allowedTCPPorts = [ cfg.port ];
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allowedUDPPorts = [ cfg.port ];
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};
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};
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};
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}
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