server/node: Added support for specific environment variables

roles/server/node/defaults/main.yml

@@ -15,5 +15,7 @@ database_user: "{{ system_user | regex_replace('[^a-zA-Z]', '_') }}"
 # database_pass from mysql/database
 # database_name from mysql/database
 
+environment_vars: {}
+
 install_command: "sudo -u {{ system_user | quote }} sh -c 'npm i && npm audit fix'"
 reload_command: "{{ install_command }} && systemctl restart {{ service_name | quote }}"

roles/server/node/templates/node.service

@@ -21,6 +21,9 @@ Environment="DATABASE_PORT=3306"
 Environment="DATABASE_USERNAME={{ database_user }}"
 Environment="DATABASE_PASSWORD={{ database_pass }}"
 Environment="DATABASE_NAME={{ database_name }}"
+{% for name, var in environment_vars.items() %}
+Environment="{{ name }}={{ var }}"
+{% endfor %}
 
 TimeoutStartSec=2s
 TimeoutStopSec=10s