sensei-wu

A step by step comparison of ENTRYPOINT and CMD commands of docker

Theory

Both ENTRYPOINT and CMD are commands which are used for customizing the startup behavior of a container.

Both commands can be used interchangeably to serve similar purposes, but nevertheless there are subtle differences between them.

ENTRYPOINT is the right way to specify a startup command for a container.

sensei-wu

Level 1 (CKAD)	Level 2 (Baseline for production)	Level 3 (Expert)
Create and configure basic Pods	Define Pod and node affinities Understand Taints and Tolerations	Understand Pod scheduling Follow best practices for container design
Understand SecurityContexts	Understand Pop security policies	Understand full range of security context options including Linux capabilities
Define an applications resource requirements	Define resource quotas Configure LimitRanges	Define pod disruption budgets
Create and consume secrets

sensei-wu

kubectl expose rc kubia --type=LoadBalancer --name kubia-http