Replace SYMFONY_NO__DB to the opt-in version ..SKIP_DB

bitnami/symfony/1/debian-9/rootfs/app-entrypoint.sh

@@ -19,7 +19,7 @@ if [ "$1" = "/run.sh" ]; then
 
     composer create-project symfony/skeleton $SYMFONY_PROJECT_NAME
 
-    if [ -z "$SYMFONY_NO_DB" ] ; then
+    if [ ! -z "$SYMFONY_SKIP_DB" ] ; then
       log "Installing symfony/orm-pack"
       composer require symfony/orm-pack -d $PROJECT_DIRECTORY
     fi

bitnami/symfony/1/ol-7/rootfs/app-entrypoint.sh

@@ -19,7 +19,7 @@ if [ "$1" = "/run.sh" ]; then
 
     composer create-project symfony/skeleton $SYMFONY_PROJECT_NAME
 
-    if [ -z "$SYMFONY_NO_DB" ] ; then
+    if [ ! -z "$SYMFONY_SKIP_DB" ] ; then
       log "Installing symfony/orm-pack"
       composer require symfony/orm-pack -d $PROJECT_DIRECTORY
     fi

bitnami/symfony/README.md

@@ -5,7 +5,8 @@
 > present, `composer create-project symfony/skeleton $SYMFONY_PROJECT_NAME`
 > is run to create a Symfony 4.x project.
 >
-> In the absence of the `$SYMFONY_NO_DB,` envvar/flag, `symfony/orm-pack` is installed.
+> Include a non null value in the `$SYMFONY_SKIP_DB,` envvar/flag, to skip over
+> installing `symfony/orm-pack`
 
 ## TL;DR;