21 Days of Docker-Day 4- Docker Container Under The Hood

Welcome to Day 4, so far we learned about the basics of Docker, let’s move our discussion from 10,000ft overview to 1000ft.

But before we go there based on the last 3 days knowledge, can you please answer a few of my questions?

21 Days of Docker-Day 1 — Introduction to Docker

21 Days of Docker-Day 2 — First Docker Container

21 Days of Docker-Day 3 - Building Container Continue

Q1: What is the Kernel version of your Docker container?

Q2: Why the first process inside the Docker container run as PID 1?

Q3: How much default memory is allocated to my Docker container?

Q4: Is there is any way to restrict how much amount of memory we can allocate to the container?

Q5: How does container get its IP or able to communicate to the external world?

These are the question which pops up in my mind when I first start exploring docker, you may not have a answer to these question if you are new to Docker but if you already start thinking in this direction you are heading in right direction 🙂