feat: enable runtime configuration reloads for auth

This is a small diff doing three things:

- Create the `/etc/auth.d` directory.
- Copies the `gotrue-optimizations.service.j2` to also copy the
  `gotrue.generated.env` file to the `/etc/auth.d` directory.
- Change the `gotrue.service.j2` to use the `--config-dir` flag
  set to the newly created `/etc/auth.d` directory.

ansible/files/gotrue-optimizations.service.j2

@@ -5,6 +5,7 @@ Description=GoTrue (Auth) optimizations
 Type=oneshot
 # we don't want failures from this command to cause PG startup to fail
 ExecStart=/bin/bash -c "/opt/supabase-admin-api optimize auth --destination-config-file-path /etc/gotrue/gotrue.generated.env ; exit 0"
+ExecStartPost=/bin/bash -c "cp -a /etc/gotrue/gotrue.generated.env /etc/auth.d/20_generated.env ; exit 0"
 User=postgrest
 
 [Install]

ansible/files/gotrue.service.j2

@@ -4,7 +4,7 @@ Description=Gotrue
 [Service]
 Type=simple
 WorkingDirectory=/opt/gotrue
-ExecStart=/opt/gotrue/gotrue
+ExecStart=/opt/gotrue/gotrue --config-dir /etc/auth.d
 User=gotrue
 Restart=always
 RestartSec=3

ansible/tasks/setup-gotrue.yml

@@ -30,6 +30,13 @@
     owner: gotrue
     mode: 0775
 
+- name: gotrue - create /etc/auth.d
+  file:
+    path: /etc/auth.d
+    state: directory
+    owner: gotrue
+    mode: 0755
+
 - name: gotrue - unpack archive in /opt/gotrue
   unarchive:
     remote_src: yes