ssh.config through ansible.cfg behaves differently then ssh.config direct

[Jurgen Coetsiers]

Hi,

My ssh.config

Host bastion

    User ansible

    HostName bastion-server

    ProxyCommand none

    IdentityFile ~/.ssh/id_rsa

    BatchMode yes

    PasswordAuthentication no

Host *

    ServerAliveInterval 60

    TCPKeepAlive yes

    ProxyCommand ssh -q -A root@bastion nc %h %p

    ControlMaster auto

    ControlPath ~/.ssh/mux-%r@%h:%p

    ControlPersist 8h

    User root

    StrictHostKeyChecking no

My ansible.cfg

[default]

hash_behaviour=merge

transport=ssh

[ssh_connection]

ssh_args = -o ControlPersist=15m -F ssh.config -q

scp_if_ssh = True

control_path = ~/.ssh/mux-%%r@%%h:%%p

When I run ssh bastion -F ssh.config I can connect with success.

When I run ansible -i ./  meta_Pool_wearezoneeu -m setup -vvvv it gives following error:

ERROR! ERROR! ./ssh.config:1: Expected key=value host variable assignment, got: bastion

No idea why this happens. Anyone experienced a similar thing or can point me into the right direction?