update matrix data dir and minor update to registration config

nixos_configs/matrix.nix

@@ -1,12 +1,12 @@
 # adapted from https://nixos.org/manual/nixos/stable/index.html#module-services-matrix
 { modulesPath, config, lib, pkgs, ... }:
-let 
+let
   matrix-registration = import ../../matrix-registration/default.nix;
   storage-device = "/dev/disk/by-id/scsi-0DO_Volume_matrix-storage";
-  storage-dir = "/opt/matrix-data";
+  storage-dir = "/srv/matrix-data";
   matrix-reg-dir = "${storage-dir}/matrix-registration";
   matrix-reg-key = (builtins.readFile ./matrix_reg_key);
-  fqdn = 
+  fqdn =
     let
       join = hostName: domain: hostName + lib.optionalString (domain != null) ".${domain}";
     in join config.networking.hostName config.networking.domain;
@@ -23,7 +23,7 @@ in {
     (builtins.readFile "/home/mike/.ssh/id_mops.pub")
   ];
 
-  ### app specific config 
+  ### app specific config
 
   # mount DigitalOcean volume for use by postgres
   fileSystems."${storage-dir}" = {
@@ -35,7 +35,7 @@ in {
     domain = "waffle.farm";
   };
 
-  services.postgresql = { 
+  services.postgresql = {
     enable = true;
     dataDir = "${storage-dir}/db";
 
@@ -128,6 +128,7 @@ in {
     server_name = config.networking.domain;
     registration_shared_secret = matrix-reg-key;
     extraConfig = ''
+      allow_public_rooms_over_federation: true
       auto_join_rooms:
         - "#cryptic-chat:waffle.farm"
     '';
@@ -162,6 +163,7 @@ in {
   systemd.services.matrix-registration = let
   configFile = pkgs.writeText "matrix-reg-config.yaml" ''
 server_location: 'https://matrix.waffle.farm:443'
+base_url: 'waffle.farm'
 server_name: 'waffle.farm'
 shared_secret: '${matrix-reg-key}'
 riot_instance: 'chat.waffle.farm'

terraform/matrix.tf

@@ -2,13 +2,6 @@ data "digitalocean_image" "nixos_base" {
   name = "nixos-base"
 }
 
-resource "digitalocean_volume" "matrix" {
-  region = "nyc3"
-  name = "matrix-storage"
-  size = 10
-  initial_filesystem_type = "ext4"
-}
-
 resource "digitalocean_droplet" "matrix-0" {
   name = "matrix-0"
 
@@ -19,6 +12,13 @@ resource "digitalocean_droplet" "matrix-0" {
   ssh_keys = [data.digitalocean_ssh_key.mops.id]
 }
 
+resource "digitalocean_volume" "matrix" {
+  region = "nyc3"
+  name = "matrix-storage"
+  size = 10
+  initial_filesystem_type = "ext4"
+}
+
 resource "digitalocean_volume_attachment" "matrix" {
   droplet_id = digitalocean_droplet.matrix-0.id
   volume_id = digitalocean_volume.matrix.id