ed9ec1aecf
few side refactors of this: - no more `dns.domain`, it all must rely on `fqdn`, prevents inconsistencies. - also added an specific host `tuxcord-acmetest` that uses the key zone for `nix.tuxcord.net` to test certificate pulling.
88 lines
1.9 KiB
Nix
88 lines
1.9 KiB
Nix
{
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config,
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pkgs,
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lib,
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...
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}:
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let
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inherit (lib)
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mkIf
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mkEnableOption
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mkOption
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types
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;
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inherit (config.networking) fqdn;
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cfg = config.acme;
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in
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{
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# we'll only support rfc2136 based challenges
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options.acme = {
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enable = mkEnableOption "" // {
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default = true;
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};
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useSelfDns = mkOption {
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default = false;
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description = "Sets values of the self DNS if enabled, otherwise requires manual `rfc2136` nameserver and key values.";
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};
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rfc2136 = {
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key = mkOption {
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type = types.path;
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default = config.age.secrets."dns/${fqdn}.key.age".path;
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};
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nameserver = mkOption {
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type = types.str;
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default = if cfg.useSelfDns then fqdn else null;
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};
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};
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};
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config = mkIf cfg.enable {
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assertions = [
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{
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assertion = with cfg.rfc2136; nameserver != null && key != null;
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message = "ACME needs rfc2136 parameters to work, consider using `useSelfDns` option.";
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}
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];
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environment.persistence."/persist".directories = [
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{
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directory = "/var/lib/acme";
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group = "acme";
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user = "acme";
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}
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];
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security.acme = {
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acceptTerms = true;
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defaults = {
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email = "error@tuxcord.net";
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reloadServices = [ "nginx" ];
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postRun = ''
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source ${config.age.secrets.ntfy.path}
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${pkgs.ntfy-sh}/bin/ntfy publish -T recycle -t "${config.host.name}" "HTTPS certificate has been renewed"
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'';
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};
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certs."${fqdn}" = {
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dnsProvider = "rfc2136";
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environmentFile = with cfg.rfc2136; builtins.toFile "dns-01-challenge.cfg" ''
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RFC2136_NAMESERVER=${nameserver}
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RFC2136_TSIG_FILE="${key}"
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'';
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extraDomainNames = [
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"*.${fqdn}"
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"${fqdn}"
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];
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group = config.services.nginx.group;
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};
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};
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};
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}
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