Add loading page

quietsy · quietsy · commit 994baf3a3ff1 · 2025-11-22T16:23:09.000+02:00
diff --git a/README.md b/README.md
@@ -32,6 +32,12 @@ This mod gives SWAG the ability to start containers on-demand when accessed thro
         environment:
             - SWAG_ONDEMAND_STOP_THRESHOLD=1800
     ```
+- *Optional* - Instead of showing a 502 error page, it can display a loading page and auto-refresh once the container is up.
+  
+  Add the following to each proxy-conf where you wish to show the loading page under `include /config/nginx/ssl.conf;`:
+    ```nginx
+    include /config/nginx/ondemand.conf;
+    ```
 
 ## Labels:
 - `swag_ondemand=enable` - required for on-demand.
diff --git a/root/defaults/ondemand.conf b/root/defaults/ondemand.conf
@@ -0,0 +1,19 @@
+proxy_intercept_errors on;
+error_page 502 = @waking_up;
+location @waking_up {
+    add_header Retry-After 5 always;
+    default_type text/html;
+    return 502 '<!DOCTYPE html>
+    <html>
+    <head>
+        <title>Waking Up...</title>
+        <meta http-equiv="refresh" content="5">
+        <style>body{font-family:sans-serif;text-align:center;padding-top:50px;}</style>
+    </head>
+    <body>
+        <h1>Application is sleeping</h1>
+        <p>Please wait while it wakes up...</p>
+        <p>This page will refresh automatically.</p>
+    </body>
+    </html>';
+}
diff --git a/root/etc/s6-overlay/s6-rc.d/init-mod-swag-ondemand-setup/run b/root/etc/s6-overlay/s6-rc.d/init-mod-swag-ondemand-setup/run
@@ -1,5 +1,7 @@
 #!/usr/bin/with-contenv bash
 
+echo "Applying the swag-ondemand mod..."
+
 if [ ! -S /var/run/docker.sock ] && [ -z "$DOCKER_HOST" ]; then
     echo "**** Docker mod not set up properly, skipping SWAG auto-proxy ****"
     exit 0
@@ -13,3 +15,9 @@ if ! pip list 2>&1 | grep -q "docker"; then
 else
     echo "**** docker-py already installed, skipping ****"
 fi
+
+if [ ! -f /config/nginx/dbip.conf ]; then
+    cp /defaults/ondemand.conf /config/nginx/ondemand.conf
+fi
+
+echo "Applied the swag-ondemand mod"
