This document discusses Linux containers and the App Container specification (APPC). It provides a history of container technologies and describes key aspects of APPC including the ACI image format, runtime environment, and discovery protocol. It introduces Rocket (rkt) as a container runtime that works with APPC and can run applications packaged in ACIs. The document concludes by mentioning how to install rkt and build a simple ACI image for demonstration purposes.

1. Rocket It

2. Agenda
○ Linux Container
○ App container specification
○ Rkt
○ Demo with Golang app

3. Le Dong Thuc - 1990
- Part-time SSS
- Hardware Dev
- Golang - 2015
- Swimming
- Running
- Foods

4. Linux Container

5. History
1979 - Chroot
2000 - FreeBSD Jails
2001 - Linux VServer
2004 - Solaris Containers
2005 - OpenVZ
2006 - Process Containers (Google)

6. 2008 - LXC
2011 - Warden (CloudFoundry)
2013 - LMCTFY (Google)
2013 - Docker
2014 - Oh yeah… Rocket it
History

7. App container
specification (APPC)

8. “APPC is an open specification that
defines several aspects of how to
run applications in containers

9. APPC defines
○ Image format
○ Runtime environment
○ Discovery protocol

10. Image format
○ Called ACI (application container image)
○ Contains:
□ Files need to run application
□ Image Manifest
○ Can created by acbuild, actool, goaci,
docker2aci

11. Pod
○ Grouping of one or more app images
(ACIs), with some additional metadata
optionally applied to the pod
○ The basic unit of execution

12. Pod

13. Where’s rkt?

14. ○ Rkt is container runtime
○ Portable image format
○ Works with init systems (systemd, upstart)
○ Rkt runs containers as un-privileged users
Rkt

15. Install Rkt
(demo)
https://github.com/coreos/rkt/releases

16. Simple Image
(demo)
https://github.com/appc/acbuild/releases
https://coreos.com/rkt/docs/latest/distributions.html
https://github.com/coreos/rkt/releases