The cost of supporting projects using the DevOps methodology is individual because it depends on many factors, such as the existing processes and infrastructure, the scope of the project and the technologies used, the requirements for Continuous Delivery, development plans, etc.
In average the launch expenses vary between $2,000 and $5,000 as they include configuration services the cost of which depends on the project complexity. The average cost of maintenance is around $750 per month for a project. We can discuss the details of your project to calculate the cost precisely.