[shrikrishna]

Start slow, and work your way up. I started with docker early, so I can see how its ecosystem can seem intimidating now, with all the different "tools" and "workflows" to know about. So my recommendation would be to go bottom up. Start with just plain old docker - learn what containers are, what makes them work, then see how to manage containers in a single host with compose. Then move on to clustering with swarm, and then move on to other cluster-mgmnt projects like k8s. Try to make your containers more space-efficient by basing your images on Alpine. Make your host more robust by using CoreOS/Rancher, and so on. You won't need all the steps (or even in the order) I've listed here. But once you've started with a base, you'll have some idea as to where you want to proceed next.

If you need any help, you are free to ping me with any queries at the email in my profile. My authority on the subject: having written a book [1] and a Udemy course [2]

[1]: https://www.packtpub.com/virtualization-and-cloud/orchestrat... [2]: https://www.udemy.com/mastering-docker/