Is Docker still relevant 2022? Yes, for the same reasons as in the previous question. Applications packaged with Docker will continue to run — no change there. Thus, you can still build and test containers with the tools you know and love.
What is replacing Docker? BuildKit. If you run a newer version of Docker, you might be familiar with BuildKit, a second-generation image-building Moby project. BuildKit provides parallel build processing, which improves performance and results in faster builds. Both BuildKit and Docker run using a daemon.
What will replace Kubernetes? A promising cloud technology that may become widely accepted after Kubernetes is micro VM Kubernetes distributions. AWS Firecracker is the most popular of micro VM Kubernetes, which packages micro virtual machines into a Kubernetes cluster to enhance the security, workload isolation, and efficiency of resources.
Should I learn Docker or Kubernetes first? When it comes to learning Docker or Kubernetes first and you ask yourself do I need to learn Docker before Kubernetes? The answer is that you should instead learn about containerization engines.