FOS user bundle doesn't keep logged session - php

Question

I have integrated the FOS user bundle just as the quick guide tells you to do. it seem to work except that once I log in and redirects it loses the session for some reason and I'm back as anonymous user.
This is what i get when I log in before I'm redirect back:
As you can see I'm successfully logged in and should be redirect to the homepage. However when I'm on the homepage I'm redirected back to the login because I check if the user is logged in or not. So somehow it does not remember that I logged in.
This is my configuration for security.xml
security:
encoders:
FOS\UserBundle\Model\UserInterface: bcrypt
role_hierarchy:
ROLE_ADMIN: ROLE_USER
ROLE_SUPER_ADMIN: [ROLE_USER, ROLE_ADMIN, ROLE_ALLOWED_TO_SWITCH]
# http://symfony.com/doc/current/book/security.html#where-do-users-come-from-user-providers
providers:
in_memory:
memory: ~
fos_userbundle:
id: fos_user.user_provider.username
firewalls:
main:
pattern: ^/
form_login:
check_path: /login_check
login_path: /login
provider: fos_userbundle
default_target_path: /
logout: true
anonymous: true
access_control:
- { path: ^/login$, role: IS_AUTHENTICATED_ANONYMOUSLY }
- { path: ^/register, role: IS_AUTHENTICATED_ANONYMOUSLY }
- { path: ^/resetting, role: IS_AUTHENTICATED_ANONYMOUSLY }
- { path: ^/admin/, role: ROLE_ADMIN }
config.yml
fos_user:
db_driver: orm # other valid values are 'mongodb', 'couchdb' and 'propel'
firewall_name: main
user_class: UserBundle\Entity\User
I obviously added the bundle to the app kernel and created the user entity. when i run the doctrine command it successfully creates the user table, etc...
I have this working fine in another project, the only difference is that for this project I'm using docker. Would this cause a problem?
Edit:
This is the code I use to check if the user is logged in:
if(!$this->container->get('security.authorization_checker')->isGranted('IS_AUTHENTICATED_FULLY') ){
return $this->redirect($this->generateUrl('fos_user_security_login'));
}
And the toolbar shows me as anonymous after the login_check redirects.

Answer 1

It was brought to my attention that if mysave_path is under /var/www/project which is mounted on my local machine it would not work.
So in config.yml I commented out the handler_id and changed thesave_path value to ~