Notes from Pluralsight course "Docker and Containers: The Big Picture"

The Pluralsight video course Docker and Containers: The Big Picture by Nigel Poulton provided a good introduction but I found it to be needlessly long

Key points from the 1hour 47minute course released in 22 Dec 2015 -

• Container is a standardized unit of software
• Open Container Initiative is responsible for Container format and runtime standards
• Docker and containers can handle stateful and stateless workloads
• Docker storage backend is pluggable
• Docker containers are peristent
• Stopping a container doesn't wipe its data. Restarting a container brings its data back
• Container data stored in volumes persists even after the container is destroyed
• Container Registries are places to store & retrieve container images
• Docker Hub is the official Docker Registry
• Registries contain Repositories
• Registries are the enterprise IT App Store
• Repositories can be public or private
• Public repositories are open for pulling (downloading) but not for pushing (uploading changes)
• Docker Engine - core technology that actually runs containers
• Docker Content Trust - turns on image signing and verification for pushing and pulling images
• Docker Trusted Registry - to deploy a container registry within your own corporate firewall that you own and manage