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

Meetup While42 in San-Francisco

Transcript

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+
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