Add support for a root path

Dockerfile

@@ -42,4 +42,5 @@ ENV AUTH_METHOD internal
 # always re-configure database with current ENV when RUNning container, then monitor all services
 ADD configure-db.php /configure-db.php
 ADD supervisord.conf /etc/supervisor/conf.d/supervisord.conf
-CMD php /configure-db.php && supervisord -c /etc/supervisor/conf.d/supervisord.conf
+ADD entrypoint.sh /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]

entrypoint.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+set -e
+
+# remove trailing / if any.
+SELF_URL_PATH=${SELF_URL_PATH/%\//}
+
+# extract the root path from SELF_URL_PATH (i.e http://domain.tld/<root_path>).
+ROOT_PATH=${SELF_URL_PATH/#http*\:\/\/*\//}
+if [ "${ROOT_PATH}" == "${SELF_URL_PATH}" ]; then
+    # no root path in SELF_URL_PATH.
+    mkdir -p /var/tmp
+    ln -s "/var/www" "/var/tmp/www"
+else
+    mkdir -p /var/tmp/www
+    ln -s "/var/www" "/var/tmp/www/${ROOT_PATH}"
+fi
+
+php /configure-db.php
+exec supervisord -c /etc/supervisor/conf.d/supervisord.conf

ttrss.nginx.conf

@@ -1,6 +1,6 @@
 server {
 	listen 80;
-	root /var/www;
+	root /var/tmp/www;
 
 	index index.php index.html;
 
@@ -15,4 +15,3 @@ server {
 		include fastcgi_params;
 	}
 }
-