re-enable nginx_xaccel; remove the rest of sed stuff from startup

src/app/Dockerfile

@@ -57,7 +57,7 @@ ENV TTRSS_SMTP_FROM_ADDRESS="noreply@your.domain.dom"
 ENV TTRSS_DIGEST_SUBJECT="[tt-rss] New headlines for last 24 hours"
 ENV TTRSS_CHECK_FOR_UPDATES="true"
 ENV TTRSS_ENABLE_GZIP_OUTPUT=""
-ENV TTRSS_PLUGINS="auth_internal, note"
+ENV TTRSS_PLUGINS="auth_internal, note, nginx_xaccel"
 ENV TTRSS_LOG_DESTINATION="sql"
 ENV TTRSS_CONFIG_VERSION="26"
 

src/app/config.docker.php

@@ -170,5 +170,9 @@
 	// vim:ft=php
 	$snippets = glob("/opt/tt-rss/config.d/*.php");
 
-	foreach ($snippets as $snippet) 
+	foreach ($snippets as $snippet) {
 		require_once $snippet;
+	}
+
+
+	define('NGINX_XACCEL_PREFIX', '/tt-rss');

src/app/config.php-config.d

@@ -1,4 +1,7 @@
 	$snippets = glob("/opt/tt-rss/config.d/*.php");
 
-	foreach ($snippets as $snippet) 
+	foreach ($snippets as $snippet) {
 		require_once $snippet;
+	}
+
+

src/app/config.php-xaccel

@@ -0,0 +1 @@
+	define('NGINX_XACCEL_PREFIX', '/tt-rss');

src/app/prepare-config.php

@@ -3,4 +3,4 @@
 sed -e "s/define('\([A-Z_]\+\)', [^)]\+/define('\1', getenv('TTRSS_\1')/" \
 	< config.php-dist > config.docker.php
 
-cat config.php-config.d >> config.docker.php
+cat config.php-config.d config.php-xaccel >> config.docker.php

src/app/startup.sh

@@ -67,10 +67,6 @@ fi
 
 if [ ! -s $DST_DIR/config.php ]; then
 	cp /config.docker.php $DST_DIR/config.php
-
-	cat >> $DST_DIR/config.php << EOF
-		define('NGINX_XACCEL_PREFIX', '/tt-rss');
-EOF
 else
 	egrep -q 'SELF_URL_PATH.*getenv' $DST_DIR/config.php || \
 		echo -e "\nWARNING: you're using old-style config.php, overrides via .env will not work.\n" >/dev/stderr