add APP_WEB_ROOT to fpm container

.docker/app/Dockerfile

@@ -7,6 +7,7 @@ ARG ALPINE_MIRROR
 
 ENV SCRIPT_ROOT=/opt/tt-rss
 ENV SRC_DIR=/src/tt-rss/
+ENV APP_WEB_ROOT=/var/www/html
 
 # Used to centralize the PHP version suffix for packages and paths
 ENV PHP_SUFFIX=84

.docker/app/backup.sh

@@ -2,7 +2,7 @@
 
 DST_DIR=/backups
 KEEP_DAYS=28
-APP_ROOT=/var/www/html/tt-rss
+APP_ROOT=$APP_WEB_ROOT/tt-rss
 
 if pg_isready -h $TTRSS_DB_HOST -U $TTRSS_DB_USER -p $TTRSS_DB_PORT; then
 	DST_FILE=ttrss-backup-$(date +%Y%m%d).sql.gz

.docker/app/startup.sh

@@ -11,18 +11,18 @@ unset HTTP_HOST
 
 if ! id app >/dev/null 2>&1; then
 	addgroup -g $OWNER_GID app
-	adduser -D -h /var/www/html -G app -u $OWNER_UID app
+	adduser -D -h $APP_WEB_ROOT -G app -u $OWNER_UID app
 fi
 
 update-ca-certificates || true
 
-DST_DIR=/var/www/html/tt-rss
+DST_DIR=$APP_WEB_ROOT/tt-rss
 
 [ -e $DST_DIR ] && rm -f $DST_DIR/.app_is_ready
 
 export PGPASSWORD=$TTRSS_DB_PASS
 
-[ ! -e /var/www/html/index.php ] && cp ${SCRIPT_ROOT}/index.php /var/www/html
+[ ! -e $APP_WEB_ROOT/index.php ] && cp ${SCRIPT_ROOT}/index.php $APP_WEB_ROOT
 
 if [ -z $SKIP_RSYNC_ON_STARTUP ]; then
 	if [ ! -d $DST_DIR ]; then

.docker/app/updater.sh

@@ -12,7 +12,7 @@ sleep 30
 
 if ! id app; then
 	addgroup -g $OWNER_GID app
-	adduser -D -h /var/www/html -G app -u $OWNER_UID app
+	adduser -D -h $APP_WEB_ROOT -G app -u $OWNER_UID app
 fi
 
 while ! pg_isready -h $TTRSS_DB_HOST -U $TTRSS_DB_USER -p $TTRSS_DB_PORT; do
@@ -23,11 +23,11 @@ done
 sed -i.bak "s/^\(memory_limit\) = \(.*\)/\1 = ${PHP_WORKER_MEMORY_LIMIT}/" \
 	/etc/php${PHP_SUFFIX}/php.ini
 
-DST_DIR=/var/www/html/tt-rss
+DST_DIR=$APP_WEB_ROOT/tt-rss
 
 while [ ! -s $DST_DIR/config.php -a -e $DST_DIR/.app_is_ready ]; do
 	echo waiting for app container...
 	sleep 3
 done
 
-sudo -E -u app "${TTRSS_PHP_EXECUTABLE}" /var/www/html/tt-rss/update_daemon2.php "$@"
+sudo -E -u app "${TTRSS_PHP_EXECUTABLE}" $APP_WEB_ROOT/tt-rss/update_daemon2.php "$@"