Direct DevOps from Quality Thought

Docker networking docker network subcommand has options to deal with docker network docker has following network drivers host bridge overlay none The default network driver is bridge, i.e. when you create containers the contianer will be part of default docker network The default bridge network allows containers to communicate over ip but name resolution cannot… Continue reading DevOps Classroom notes 05/Jun/2026

Standards in Containers OCI: Refer Here OCI Image spec OCI Runtime spec Network Standard: CNM: Docker follows CNM CNI: kubernetes follows CNI Problems Docker used the linux kernel to create containers: To solve this docker create a project called as libcontainer. Docker networking: This was part of docker daemon, Docker created libnetwork which follows CNM… Continue reading DevOps Classroom notes 04/Jun/2026

Image layers Articles Refer Here Refer Here Refer Here Storage Driver: Deals with layers How to preserve the data that is present in writable layer Identify the location Create a volume for that location Volume is a seperate space which can exist even after container is deleted. When recreating the container reuse the volume A… Continue reading DevOps Classroom notes 29/May/2026

Docker lifecycle Common docker commands A container is running and you want to see the logs docker logs <contaner-id or name> docker logs <contaner-id or name> -f Docker logs shows only stdout and stderr I want to delete all containers in my system docker rm -f $(docker ps -a -q) I want to delete all… Continue reading DevOps Classroom notes 27/May/2026