Docker way
Tools Needed:
Packer: Building the images : http://www.packer.io/
Docker: Managing Containder : https://www.docker.io/
Salt: Managing the automated configuration : http://www.saltstack.com/
Packer create identical machine images from a single source configuration. It is easy to maintain.Use packer to build Docker images.
Docker:
- Is like git for filesystems (Docker pull/push/commit)
- Is like Vagrant for LXC containers (docker run / Vagrant up,docker kill / vagrant halt, docker rm/vagrant destroy, Docker file / Vagrantfile)
- It has its own proces space
- It has its own network interface
Containers:
- Containers are isolated, but share OS , bin/libraries
- Containers are process and not VMs, thats why they are so fast
- faster restart
- less overhead
- Copy on write allow to save only deltas
