86 lines
2.6 KiB
Nix
86 lines
2.6 KiB
Nix
{ config, pkgs, lib, ... }:
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let
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cfg = config.environment.snakeoil-certs;
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in
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{
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options.environment.snakeoil-certs = lib.mkOption {
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default = { };
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description = "Self signed certs, which are rotated regularly";
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type = lib.types.attrsOf (lib.types.submodule ({ name, ... }: {
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options = {
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owner = lib.mkOption {
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type = lib.types.str;
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default = "root";
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};
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group = lib.mkOption {
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type = lib.types.str;
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default = "root";
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};
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mode = lib.mkOption {
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type = lib.types.str;
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default = "0660";
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};
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daysValid = lib.mkOption {
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type = lib.types.str;
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default = "90";
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};
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extraOpenSSLArgs = lib.mkOption {
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type = with lib.types; listOf str;
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default = [ ];
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};
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certificate = lib.mkOption {
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type = lib.types.str;
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default = "${name}.crt";
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};
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certificateKey = lib.mkOption {
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type = lib.types.str;
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default = "${name}.key";
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};
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subject = lib.mkOption {
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type = lib.types.str;
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default = "/C=NO/O=Programvareverkstedet/CN=*.pvv.ntnu.no/emailAddress=drift@pvv.ntnu.no";
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};
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};
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}));
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};
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config = {
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systemd.services."generate-snakeoil-certs" = {
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enable = true;
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serviceConfig.Type = "oneshot";
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script = let
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openssl = lib.getExe pkgs.openssl;
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in lib.concatMapStringsSep "\n" ({ name, value }: ''
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mkdir -p $(dirname "${value.certificate}") $(dirname "${value.certificateKey}")
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if ! ${openssl} x509 -checkend 86400 -noout -in ${value.certificate}
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then
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echo "Regenerating '${value.certificate}'"
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${openssl} req \
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-newkey rsa:4096 \
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-new -x509 \
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-days "${toString value.daysValid}" \
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-nodes \
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-subj "${value.subject}" \
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-out "${value.certificate}" \
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-keyout "${value.certificateKey}" \
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${lib.escapeShellArgs value.extraOpenSSLArgs}
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fi
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chown "${value.owner}:${value.group}" "${value.certificate}"
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chown "${value.owner}:${value.group}" "${value.certificateKey}"
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chmod "${value.mode}" "${value.certificate}"
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chmod "${value.mode}" "${value.certificateKey}"
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echo "\n-----------------\n"
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'') (lib.attrsToList cfg);
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};
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systemd.timers."generate-snakeoil-certs" = {
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wantedBy = [ "timers.target" ];
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timerConfig = {
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OnCalendar = "*-*-* 02:00:00";
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Persistent = true;
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Unit = "generate-snakeoil-certs.service";
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};
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};
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};
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}
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