The key feature of container is isolation. In this section, we will elaborate how container achieves it and why it matters in the software development life cycle to help establish a proper understanding of this powerful tool.
Understanding container
Resource isolation
When an application launches, it consumes CPU time, occupies memory space, links to its dependent libraries, and may write to disk, transmit packets, and access other devices. Everything it uses up is a resource, and is shared by all the programs on the same host. The idea of container is to isolate resources and programs to separate boxes.
You may have heard such terms as para-virtualization, Virtual Machines (VMs), BSD jails, and Solaris containers, which can...
