Fixes purging configuration.

debian/jitsi-meet.postinst

 
         . /etc/default/jitsi-videobridge
 
+        # loading debconf
+        . /usr/share/debconf/confmodule
+
+        # stores the hostname so we will reuse it later, like in purge
+        db_set jitsi-meet/jvb-hostname $JVB_HOSTNAME
+
         # nginx conf
         if [ ! -f /etc/nginx/sites-available/$JVB_HOSTNAME.conf ]; then
             cp /usr/share/doc/jitsi-meet/jitsi-meet.example /etc/nginx/sites-available/$JVB_HOSTNAME.conf
         fi
 
         if [ ! -f /etc/ssl/$JVB_HOSTNAME.key ] || [ ! -f /etc/ssl/$JVB_HOSTNAME.crt ]; then
-            # loading debconf
-            . /usr/share/debconf/confmodule
-
             # SSL for nginx
             db_get jitsi-meet/cert-choice
             CERT_CHOICE="$RET"
                 sed -i "s/ssl_certificate\ \/var\/lib\/prosody\/.*crt/ssl_certificate\ $CERT_CRT_ESC/g" \
                     /etc/nginx/sites-available/$JVB_HOSTNAME.conf
             fi
-
-            # and we're done with debconf
-            db_stop
         fi
 
         # jitsi meet
             sed -i "s/jitsi-meet.example.com/$JVB_HOSTNAME/g" $JITSI_MEET_CONFIG
         fi
 
+        # and we're done with debconf
+        db_stop
+
         invoke-rc.d nginx reload
     ;;
 

debian/jitsi-meet.postrm

             invoke-rc.d nginx reload
         fi
     ;;
-
-    purge|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+    purge)
+        db_get jitsi-meet/jvb-hostname
+        JVB_HOSTNAME=$RET
+        if [ -n "$RET" ]; then
+            #. /etc/default/jitsi-videobridge
+            rm -f /etc/jitsi/meet/$JVB_HOSTNAME-config.js
+            rm -f /etc/nginx/sites-available/$JVB_HOSTNAME.conf
+            rm -f /etc/nginx/sites-enabled/$JVB_HOSTNAME.conf
+        fi
+    ;;
+    upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
     ;;
 
     *)

debian/jitsi-meet.templates

 _Description: Full local server path to the SSL certificate file:
  The full path to the SSL certificate file on the server.
  If you haven't uploaded it, now is a good time to upload it in another console.
+
+Template: jitsi-meet/jvb-hostname
+Type: string
+Default: ${default-key}
+_Description: The hostname of the current installation:
+ The value for the hostname that is set in Jitsi Videobridge installation.

debian/po/templates.pot

 "The full path to the SSL certificate file on the server. If you haven't "
 "uploaded it, now is a good time to upload it in another console."
 msgstr ""
+
+
+#. Type: string
+#. Description
+#: ../jitsi-meet.templates:4001
+msgid "The hostname of the current installation:"
+msgstr ""
+
+#. Type: string
+#. Description
+#: ../jitsi-meet.templates:4001
+msgid ""
+"The value for the hostname that is set in Jitsi Videobridge installation."
+msgstr ""