Running container at BlaBlaCar — While 42 (San-Francisco)

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1. Running containers at #While42 (San-Francisco)

2. $100 $25 $25 $25 $25

3. 25 million members in January 2016

4. 22 countries

5. 20M 40M 80M 160M 129M 2014 2015 2016 2017 Travelers

   transported 2014

6. metal servers services run. containers 120 150+ 2000+

7. None

8. github.com/coreos/rkt

9. $ (sudo) rkt run ./image.aci Archive of filesystem & instructions

   of what to run Foreground process Require root

10. $ rkt run example.org/image.aci Fetch the image first and then

    run it

11. How to build an ACI?

12. App Container (appc) Open specification that defines several aspects of

    how to run applications in containers

13. Pronounced « digg-er » github.com/blablacar/dgr

14. ├── aci-manifest.yml ├── attributes │ └── redis.yml ├── runlevels │

    └── build │ └── install.sh └── templates └── etc └── redis └── redis.conf.tmpl

15. name: aci-redis aci: app: exec: - /usr/bin/redis-server - /etc/redis/redis.conf

16. name: aci-redis aci: app: exec: - /usr/bin/redis-server - /etc/redis/redis.conf dependencies:

    - aci-debian Not included in redis image

17. Runlevel: Build

18. ├── aci-manifest.yml ├── attributes │ └── redis.yml ├── runlevels │

    └── build │ └── install.sh └── templates └── etc └── redis └── redis.conf.tmpl

19. #!/bin/bash apt install -y redis-server

20. Runlevel: Prestart

21. Dump configuration files Initialize database/user Enable/Disable modules Change mod/owner

22. ├── aci-manifest.yml ├── attributes │ └── redis.yml ├── runlevels │

    └── build │ └── install.sh └── templates └── etc └── redis └── redis.conf.tmpl

23. # templates/etc/redis/redis.conf.tmpl daemonize no port {{ .redis.port }} ... #

    attributes/redis.yml default: redis: port: 6379 Resolved at runtime

24. POD Running several ACIs in the same context

25. name: example.org/pod-myapp:1 pod: apps: - dependencies: - example.org/aci-nginx:1.8.1 app: exec:

    [/usr/sbin/nginx, -g, daemon off] - dependencies: - example.org/aci-php:5.6 - example.org/aci-myapp:42 app: exec: [/usr/sbin/php5-fpm, -F]

26. $ rkt run \ example.org/pod-myapp_aci-nginx:1 \ example.org/pod-myapp_aci-php:1

27. pod-myapp_aci-nginx pod-myapp_aci-php Linux kernel other process ... 1.2.3.4 172.16.8.8 :80

    :9000

28. Services discovery with smartstack synapse + nerve by Airbnb

29. Zookeeper haproxy php healtcheck mysql client server

30. Thank you! @BlaBlaCarTech @MattKetmo blablatech.com