simplify acme config

defaults/main.yml

@@ -1,7 +1,6 @@
 mumble_domain: "{{ inventory_hostname }}.local"
 
 acme_enabled: no
-acme_account_email: acme@example.com
 acme_domains:
   - name: "{{ mumble_domain }}"
     hooks: |
@@ -10,13 +9,7 @@ acme_domains:
         'systemctl restart umurmur' if umurmur_enabled else None,
         'systemctl restart mumble-server' if murmur_enabled else None
       ) | reject("none") | list }}
-acme_config:
+acme_directory_url: https://acme-v02.api.letsencrypt.org/directory
-  account:
-    private_key: "{{ acme_accounts_dir }}/acme_account.key"
-    email: "{{ acme_account_email }}"
-  directory_url: https://acme-v02.api.letsencrypt.org/directory
-  challenge_dir: /var/www/acme/.well-known/acme-challenge
-  domains: "{{ acme_domains }}"
 
 mumble_web_enabled: no
 mumble_web_domain: "{{ mumble_domain }}"

templates/nginx.conf.j2

@@ -11,7 +11,7 @@ server {
 {% if acme_enabled %}
   location ^~ /.well-known/acme-challenge/ {
 		allow all;
-		alias {{ acme_config.challenge_dir + (acme_config.challenge_dir.endswith('/') | ternary('', '/')) }};
+		root {{ acme_root_dir }};
 		try_files $uri =404;
 	}
 {% endif %}