[ADD] Uses a variable for the CNAME endpoint

README.md

@@ -15,8 +15,9 @@ ansible-pull \
 
 * Launches a new LXD container called **newodoocontainer**, that uses a LXD profile to download
   and setup Odoo v14.
-* Creates a DNS alias for **externo.agofer.net** called
-  **newodoocontainer.agofer.net**.
+* Creates a DNS alias for **externo.agofer.net** or **externo2.agofer.net**
+  (see role variables in `local.yml` file), called
+  **<newodoocontainer>.agofer.net**.
 * Registers this container in the existing Nginx Proxy container.
 * Requests an SSL certificate to _Let's Encrypt_ for the new domain, storing
   the certificates in the Nginx Proxy container.
@@ -33,4 +34,7 @@ A container called **nginx** should exist, with these packages already installed
 lxc exec nginx -- apt -y install nginx certbot python3-certbot-nginx
 ```
 
-This container should listen to external connections, in order to allow **Let's Encrypt** certificates to be assigned and renewed. It's strongly suggested to protect it using **fail2ban**, Geo-IP restrictions, or other security measures.
+This container should listen to external connections, in order to allow
+**Let's Encrypt** certificates to be assigned and renewed. It's strongly
+suggested to protect it using **fail2ban**, Geo-IP restrictions, or
+other security measures.

local.yml

@@ -16,6 +16,7 @@
     - lxchost
   vars:
     dominio: agofer.net
+    dnsalias: externo2
 
 - hosts: nginx
   gather_facts: yes

roles/lxchost/tasks/main.yml

@@ -27,5 +27,5 @@
 
 - name: Register DNS CNAME alias using Dreamhost API
   uri:
-    url: 'https://api.dreamhost.com/?key={{ apikey }}&cmd=dns-add_record&record={{ container }}.{{ dominio }}&type=CNAME&value=externo.{{ dominio }}.'
+    url: 'https://api.dreamhost.com/?key={{ apikey }}&cmd=dns-add_record&record={{ container }}.{{ dominio }}&type=CNAME&value={{ dnsalias }}.{{ dominio }}.'