Kargo/Ansible is not able to connect through ssh from Kargo Docker container

[jalbstmeijer]

root@d05db7b33842:/# kargo deploy --verbose --aws -u ec2-user --passwd secret -n weave

CHECKING SSH CONNECTIONS *******************************************************
k8s-mckay-7zw49 | UNREACHABLE! => {
"changed": false,
"msg": "Failed to connect to the host via ssh.",
"unreachable": true
}
k8s-mckay-1thil | UNREACHABLE! => {
"changed": false,
"msg": "Failed to connect to the host via ssh.",
"unreachable": true
}

just using plain ssh works;

ssh ec2-user@host

an Ansible ping not

root@d05db7b33842:/# ansible -i /root/.kargo/inventory/inventory.cfg -u ec2-user -m ping k8s-mckay-7zw49
k8s-mckay-hrwtl | UNREACHABLE! => {
"changed": false,
"msg": "Failed to connect to the host via ssh.",
"unreachable": true
}

found workaround http://stackoverflow.com/questions/31649421/ansible-wont-let-me-connect-through-ssh

root@d05db7b33842:/# cat > /root/.ansible.cfg
[ssh_connection]
ssh_args=

[jalbstmeijer]

You would expect the 'TASK [Wait until SSH is available] ' of 'kargo aws --nodes 3 --cluster-name kubbe' to fail too before.
But looking at the comment #37 (comment) it seems there the default ssh_args get overruled in the command line with ''--ssh-extra-args''