Direct DevOps from Quality Thought

Docker compose This lets you bring up multiple containers with simple command docker compose up -d docker compose down # bring down and remove volumes docker compose down -v To use docker compose we need to create an yaml file with name docker-compose.yml YAML file is used to represent data in the form of key… Continue reading DevOps Classroom notes 08/Jun/2026

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