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 -
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
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