run pyinfra command with environment variables, without inventory.py

deploy.py

@@ -2,4 +2,13 @@ import os
 from pyinfra import host, facts
 from chatmail import deploy_chatmail
 
-deploy_chatmail()
+
+def main():
+    mail_domain = os.getenv("CHATMAIL_DOMAIN")
+    mail_server = os.getenv("CHATMAIL_SERVER", mail_domain)
+    dkim_selector = os.getenv("CHATMAIL_DKIM_SELECTOR", "2023")
+
+    deploy_chatmail(mail_domain, mail_server, dkim_selector)
+
+
+main()