From the history if we have seen the growth of deployment phase, it has improved lot of ways. We all know how the deployments were happen half of the decade before, mostly it was manual or some basic automation script was used. Later we all know the how it was changed once containers got introduced. Containers has helped administrators to roll-out deployments within a second. Then again it took fast ways to roll-out production deployments by ensuring the scalability so that it meets the demand via orchestrators like Kubernetes.
