servers/losurdo/acme/autogeree.net.nix

   1 { pkgs, lib, config, servers, ... }:
   2 let
   3   domain = "autogeree.net";
   4   domainID = lib.replaceStrings ["."] ["_"] domain;
   5   credentialsFile = "/var/lib/acme/.lego/${domain}/rfc2136";
   6   inherit (config.users) users groups;
   7 in
   8 {
   9 systemd.services."acme-${domain}".after = [
  10   "unbound.service"
  11 ];
  12 services.shorewall.configs.rules = ''
  13   # for lego to update ACME DNS-01 challenge
  14   DNS(ACCEPT) $FW net:${servers.mermet.ipv4}
  15   # for lego to check DNS propagation on ns6.gandi.net
  16   DNS(ACCEPT) $FW net:217.70.177.40 {user=${users.root.name}}
  17   # for lego to check DNS propagation on ns0.muarf.org
  18   DNS(ACCEPT) $FW net:78.192.65.63 {user=${users.root.name}}
  19 '';
  20 networking.nftables.ruleset = ''
  21   # for lego to update ACME DNS-01 challenge
  22   add rule inet filter fw2net ip daddr ${servers.mermet.ipv4} tcp dport 53 counter accept comment "DNS"
  23   add rule inet filter fw2net ip daddr ${servers.mermet.ipv4} udp dport 53 counter accept comment "DNS"
  24   # for lego to check DNS propagation on ns6.gandi.net
  25   add rule inet filter fw2net ip daddr 217.70.177.40 tcp dport 53 skuid ${users.root.name} counter accept comment "DNS gandi"
  26   add rule inet filter fw2net ip daddr 217.70.177.40 udp dport 53 skuid ${users.root.name} counter accept comment "DNS gandi"
  27   # for lego to check DNS propagation on ns0.muarf.org
  28   add rule inet filter fw2net ip daddr 78.192.65.63 tcp dport 53 skuid ${users.root.name} counter accept comment "DNS muarf"
  29   add rule inet filter fw2net ip daddr 78.192.65.63 udp dport 53 skuid ${users.root.name} counter accept comment "DNS muarf"
  30 '';
  31 security.acme.certs."${domain}" = {
  32   email = "root+letsencrypt@${domain}";
  33   extraDomains = {
  34     "*.${domain}" = null;
  35   };
  36   user = users.root.name;
  37   group = groups.acme.name;
  38   allowKeysForGroup = true;
  39   keyType = "rsa4096";
  40   dnsProvider = "rfc2136";
  41   # ns6.gandi.net takes roughly 5min to update
  42   # hence lego's RFC2136_PROPAGATION_TIMEOUT=1000
  43   #dnsPropagationCheck = false;
  44   inherit credentialsFile;
  45 };
  46 install.shellHook = ''
  47   {
  48   cat <<-EOF
  49   RFC2136_NAMESERVER=ns.${domain}:53
  50   RFC2136_TSIG_ALGORITHM=hmac-sha256.
  51   RFC2136_TSIG_KEY=acme_${domainID}
  52   RFC2136_PROPAGATION_TIMEOUT=1000
  53   RFC2136_POLLING_INTERVAL=30
  54   RFC2136_SEQUENCE_INTERVAL=30
  55   RFC2136_DNS_TIMEOUT=1000
  56   RFC2136_TTL=1
  57   EOF
  58   pass "servers/losurdo/lego/${domain}/rfc2136"
  59   } |
  60   ssh "$target" install -D -m 0400 -o root -g root /dev/stdin \
  61    ${credentialsFile}
  62 '';
  63 }