feature #794 [docker]Ensure var/sessions is created (Ferror)

This PR was merged into the 1.12 branch.

Discussion
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We store sessions in the  directory, but we do not create it if it does not exist. Therefore it tends to fail.


https://github.com/Sylius/Sylius-Standard/blob/master/docker-compose.prod.yml#L18

Commits
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7ed3183 [docker]Ensure var/sessions is created

docker/php/docker-entrypoint.sh

@@ -7,7 +7,7 @@ if [ "${1#-}" != "$1" ]; then
 fi
 
 if [ "$1" = 'php-fpm' ] || [ "$1" = 'bin/console' ]; then
-	mkdir -p var/cache var/log public/media
+	mkdir -p var/cache var/log var/sessions public/media
 	setfacl -R -m u:www-data:rwX -m u:"$(whoami)":rwX var public/media
 	setfacl -dR -m u:www-data:rwX -m u:"$(whoami)":rwX var public/media