kubespray/roles/container-engine/cri-o/templates/config.json.j2

{% if crio_registry_auth is defined and crio_registry_auth|length %}
{
{% for reg in crio_registry_auth %}
  "auths": {
    "{{ reg.registry }}": {
      "auth": "{{ (reg.username + ':' + reg.password) | string | b64encode }}"
    }
{% if not loop.last %}
  },
{% else %}
  }
{% endif %}
{% endfor %}
}
{% else %}
{}
{% endif %}