The traditional application model features software solutions that run directly on bare-metal servers or virtual machines. Businesses face challenges of getting their applications to run reliably when migrated from one computing environment to another—for example, transferring software from a developer’s device or a staging environment, or from a physical server in a data center to a virtual one in the cloud.
In most cases, the supporting software environment is not identical, and programming libraries keep changing, making it challenging to maintain scalability and portability in applications. As a result, DevOps engineers need to ramp up on multiple configurations, skills, and tools. The overall efficiency of a VM is limited, especially during peak load conditions that lead to intensive demand for CPU and memory from a physical machine running numerous VMs.