fix: handle undefined variables in config

defaults/main.yml

@@ -1,5 +1,5 @@
 ---
-server_scripts_version: v0.2.24
+server_scripts_version: v0.2.25
 server_scripts_install_path: /usr/share/server-scripts
 server_scripts_logs_base_path: /var/log/server-scripts
 
@@ -8,7 +8,7 @@ server_scripts_detect_viruses_path: /home
 #server_scripts_mailto: [email protected] # required
 server_scripts_dbdump_dir: /var/backups/sql
 server_scripts_dbdump_log: "{{ server_scripts_logs_base_path }}/mysql_backup.log"
-#server_scripts_dbdump_remote_user: backup # required
+server_scripts_dbdump_remote_user: backup # required
 #server_scripts_dbdump_remote_host: backup.remote.com # required
 server_scripts_dbdump_remote_dir: "{{ server_scripts_dbdump_dir }}/{{ ansible_fqdn }}"
 server_scripts_dbdump_excluded_dbs: "_test$"

molecule.yml

@@ -16,8 +16,3 @@ docker:
 
 ansible:
   playbook: tests/playbook.yml
-  group_vars:
-    all:
-      server_scripts_mailto: [email protected]
-      server_scripts_dbdump_remote_host: backup.remote.com
-      server_scripts_dbdump_remote_user: backup

templates/server-scripts.conf.j2

@@ -1,13 +1,19 @@
 # {{ ansible_managed }}
 # all
+{% if server_scripts_mailto is defined %}
 MAILTO="{{ server_scripts_mailto }}"
+{% endif %}
 
 # dbdump, dbundump
 DB_BACKUPS_ROOT="{{ server_scripts_dbdump_dir }}"
 DB_BACKUPS_LOG="{{ server_scripts_dbdump_log }}"
 
+{% if server_scripts_dbdump_remote_user is defined %}
 DB_BACKUPS_REMOTE_USER="{{ server_scripts_dbdump_remote_user }}"
+{% endif %}
+{% if server_scripts_dbdump_remote_host is defined %}
 DB_BACKUPS_REMOTE_HOST="{{ server_scripts_dbdump_remote_host }}"
+{% endif %}
 DB_BACKUPS_REMOTE_DIR="{{ server_scripts_dbdump_remote_dir }}"
 
 DB_BACKUPS_EXCLUDED_DBS="{{ server_scripts_dbdump_excluded_dbs }}"