Why do I need Kubernetes?
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Containers provide an abstraction layer above the operating system similar to how virtual machines abstract hardware. Containers allow applications to be portable and isolated, using fewer resources than virtual machines. Container orchestration platforms like Docker and Kubernetes are needed to manage containerized applications across multiple hosts for scalability and high availability.
Why do I need Kubernetes?
- 1. What is a Container? Containers are abstracting the OS as VMs did to hardware Infrastructure Hypervisor Infrastructure App 1 Bins/Libs OS App 2 Bins/Libs OS App 3 Bins/Libs OS Virtual Machines Containers Hypervisor OS App 1 Bins/Libs App 2 Bins/Libs App 3 Bins/Libs Container Engine
- 2. Containers are: Fast Boot Environments Rapidly Portable Ability to Move Containers Freely Lightweight Minimal Resources Needed
- 3. The need for containers orchestrators v v Legacy Application Modernized Application Application Repackaging Application Refactoring Application Journey App packaged in VM App packaged in Container PlatformEvolution
- 4. What is a Docker Host? 4 OS App 1 Bins/Libs App 2 Bins/Libs App 3 Bins/Libs Container Engine Docker Host
- 5. What is Kubernetes? 5 OS App 1 Bins/Libs App 2 Bins/Libs App 3 Bins/Libs Container Engine Docker Host Kubernetes Slave OS App 1 Bins/Libs App 2 Bins/Libs App 3 Bins/Libs Container Engine Docker Host Kubernetes Slave OS App 1 Bins/Libs App 2 Bins/Libs App 3 Bins/Libs Container Engine Docker Host Kubernetes Slave Kubernetes Master
Editor's Notes
- #2: Narrative: Containers are abstracting the OS like what VMs did to hardware