v2 authenticate

gistfile1.txt

{
    "access": {
        "metadata": {
            "is_admin": 0,
            "roles": [
                "aef47300eb094a738645be293223b4e1",
                "816ed64d764649c5995bec390c256635"
            ]
        },
        "serviceCatalog": [],
        "token": {
            "audit_ids": [
                "ILDP0unzS4GoXaQq9qJqCg"
            ],
            "expires": "2015-03-05T17:22:54Z",
            "id": "7577805877854ea9a4e9b8f392205dc2",
            "issued_at": "2015-03-05T16:22:54.069178",
            "tenant": {
                "description": "description",
                "enabled": true,
                "id": "c309a28698704763a700c8401ed46083",
                "name": "test_project",
                "parent_id": null
            }
        },
        "user": {
            "id": "6a8ce9cec4ae4fad853b3e8cc0bacecc",
            "name": "testuser",
            "roles": [
                {
                    "name": "test_role"
                },
                {
                    "name": "admin"
                }
            ],
            "roles_links": [],
            "username": "testuser"
        }
    }
}