Rent -- Disposition to be fixed by ordinance

At or before the issuance of the bonds, the governing body of the city shall, by ordinance, set aside and pledge the income of the building into a special fund to be used and applied in payment of the cost and maintenance of the building. The ordinance shall definitely fix the amount of revenue necessary to be set aside and applied for the payment of the principal and interest of the bonds. The balance of the income shall be set aside for the reasonable and proper maintenance of the building, including a sufficient sum to pay the cost of insurance. The city governing body may provide by ordinance any provision and stipulation it deems necessary for the administration of the income for the security of the bondholders.