For a clearer picture

Learning

https://cloudsociety.microsoft.com

https://docs.microsoft.com/en-us/learn/

https://www.edx.org

https://docs.microsoft.com/en-us/azure/#pivot=architecture

https://docs.microsoft.com/en-us/azure/architecture/

https://training.play-with-docker.com/

https://training.play-with-kubernetes.com

https://www.azuredevopslabs.com