cloudron-support: delete extra dashboard conf files

scripts/cloudron-support

@@ -165,10 +165,18 @@ function check_unbound() {
 }
 
 function check_nginx() {
+    local -r dashboard_domain=$(mysql -NB -uroot -ppassword -e "SELECT value FROM box.settings WHERE name='dashboard_domain'" 2>/dev/null)
+
     if ! systemctl is-active -q nginx; then
-        fail "nginx is down. checking if this is because of invalid certs"
-        # TODO: delete config files that use invalid certs and restart nginx
-        exit 1
+        fail "nginx is down. Removing extraneous dashboard domain configs ..."
+
+        cd /home/yellowtent/platformdata/nginx/applications/dashboard/ && find . ! -name "my.${dashboard_domain}.conf" -type f -exec rm -f {} +
+        systemctl restart nginx
+
+        if ! systemctl is-active -q nginx; then
+            fail "nginx is still down, please investigate the error by inspecting /var/log/nginx/error.log"
+            exit 1
+        fi
     fi
 
     success "nginx is running"