Update openstacksdk requirement from <=0.98.999 to <=4.0.0 · yaptide/deploy@ea58ed9

Variables names from within roles should use backend_ as a prefix. (vars: ansible_become)

Variables names from within roles should use frontend_ as a prefix. (vars: ansible_become)

Variables names from within roles should use openstack_ as a prefix. (vars: image_name)

Variables names from within roles should use openstack_ as a prefix. (vars: key_name)

Variables names from within roles should use openstack_ as a prefix. (vars: flavor_name)

Variables names from within roles should use openstack_ as a prefix. (vars: dns_nameservers)

Variables names from within roles should use setup_ as a prefix. (vars: apt_packages)

Variables names from within roles should use setup_ as a prefix. (vars: ansible_become)

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