- Whats is docker?
- Difference between container & VMs?
- Difference between Docker & Virtualization?
- Difference between container and image?
- How image builds?
- What are image layers?
- How image layers work?
- What is overlayfs?
- Where the image layes can be found in which directory?
- How can we check the content of each layer?
- How to check the layers stacked with image?
- What is Union Mount & AUFS?
- Why use Union mount system for Docker?
- What are the 3 different directories in /var/lib/docker/aufs?
- How to run an image?
- How to tag an image?
- How to Link one container with another?
- How do you sequence the containers? A first then B should execute after that?
- How to create a volume in docker container to store data?
- How to mount a local directory into a container?
- How to expose a port no to access container?
- What is entrypoint in docker?
- What is dockerfile?
- Difference between ADD & COPY parameters in dockerfile?
- How to create a bridge in container?
- How a container gets an internal IP?
- Can we check the process of a container inside as well as outside the container?
- Can we check the container process on docker host?
- How kernel isolates to run the container and how resources managed by the kernel?
- What is namespace and cgroups?
- What is docker-compose and docker-swarm?
- How you can give different network IP to the container?
- What are the parameters of dockerfile?
- Is there any windows container also available?
- How to stop a container?
- How to run a container in background?
- How to go inside a container if container is running in background?
- How to check running containers?
- How to remove an image?
- How to run an image which is in tar format?
- Command to check the process of a container?
- How to check resource utilisation of a container
- How to create an image?
- How to save changes of a container?
- What are registries?
- Difference between docker commands: up, run & start?
- Can we run more than one process in a container?
I’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I am working at Cotocus. I blog tech insights at DevOps School, travel stories at Holiday Landmark, stock market tips at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at I reviewed , and SEO strategies at Wizbrand.
Please find my social handles as below;
Rajesh Kumar Personal Website
Rajesh Kumar at YOUTUBE
Rajesh Kumar at INSTAGRAM
Rajesh Kumar at X
Rajesh Kumar at FACEBOOK
Rajesh Kumar at LINKEDIN
Rajesh Kumar at PINTEREST
Rajesh Kumar at QUORA
Rajesh Kumar at WIZBRAND