Docker and Pharo @ZWEIDENKER

•

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ZWEIDENKER GmbH

Docker and Pharo @ZWEIDENKER Talk held at ESUG18, Cagliary, Italy.

Technologie

We are…
Pierre Chanson
Marcus Denker
Norbert Hartl

• Founded in 2009 (10 Year party next year!)

• 13 people in Cologne (Germany) and Ho Chi Minh City
(Vietnam)

• iPhone, Android, Web, Backend. Pharo!

• You might know the german Call A Bike or Flinkster Car
Sharing.

This presentation
• Server infrastructure

• Application deployment, Monitoring

• Workﬂow: following one commit step-by-step

The project
• Big project: mobility service for Airbus

• Need for scale: +10k users in a few hours timeframe

• Need not to be killed by complexity

API
message
queue
cars
bikes
cars
trains
buses
API
Micro services

Iceberg Jenkins
Docker HubDocker Swarm
db
Pharo Pharo Pharo
Pharo Pharo
Pharo Pharo

Regular day of coding at the oﬃce…
self ﬂag: #bob
true become: false

Regular day of coding at the oﬃce…
Gotta show this to my boss !
self ﬂag: #bob
true become: false

Regular day of coding at the oﬃce…
How ???
Gotta show this to my boss !
self ﬂag: #bob
true become: false

Git commit
Git push
Pull request
Review…
“Good job” merge

Wassup ? (every 10 mins)
Alright, pull 
run tests 
docker …

What is Docker?
• Think about it as a Smalltalk image, but for Linux

• Docker Image is build from a description (Dockerﬁle)

• Then we can run it (once or multiple times)

Wassup ? (every 10 mins)
Alright, pull 
run tests 
docker-compose build
docker-compose push

Ansible: Orchestration
• We need to start lots of stuﬀ (Pharo, Webserver,
MessageQueue, Database…)

• Ansible is a way to script typical unix admin things

• Both used to setup the Linux machines and to start
Docker

ansible-playbook -i myInventory myYml.yml
(there is nothing worse than yaml!)

Iceberg Jenkins
Docker HubDocker Swarm
DB

Docker: Swarm
• We want to run on multiple machines

• Swarm allows to run “services” which scale to multiple
docker containers

• Manages Distribution, restart…

Monitoring
• Lots of machines (virtual and real)

• Lot of diﬀerent software (database, web, message queue,
lots Pharo images)

• How do we look at it?

Monitoring
• Grafana

• Dashboard

• Alarms: Get Notiﬁcations via Mail and in Slack

• Docker images provide data via REST API

• Pharo GC, Zinc Requests

internet
API
message
queue
web client
load balancer
bikes
DB
cars
DB
trains
DB
buses
DB
API
DB

load balancer
Physical servers
API
DB DB DB
bikes
bikes
cars
carsbuses
trains
buses
API

And that x 3
• We have 3 Swarms:

• Alpha (development)

• Beta (testing)

• Production

• And you can run the whole setup on your laptop, too!
+100 Pharo images overall in
our cluster

Much more…
Pharo Library for Docker Swarm (work in progress)

Much more…
• Lots of in-house libs

• Visualise Docker Swarm with Roassal (ﬁrst work)

• Docker Health Check from Pharo

• Server for and Pharo app for Fuel Stack Traces

• DockerEngine + OpenAPI
Tell us what you want to see at the Show Us Your Project !

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Docker and Pharo @ZWEIDENKER

1. Docker and Pharo @

2. We are… Pierre Chanson Marcus Denker Norbert Hartl

3. • Founded in 2009 (10 Year party next year!) • 13 people in Cologne (Germany) and Ho Chi Minh City (Vietnam) • iPhone, Android, Web, Backend. Pharo! • You might know the german Call A Bike or Flinkster Car Sharing.

4. This presentation • Server infrastructure • Application deployment, Monitoring • Workﬂow: following one commit step-by-step

5. The project • Big project: mobility service for Airbus • Need for scale: +10k users in a few hours timeframe • Need not to be killed by complexity

6. API message queue cars bikes cars trains buses API Micro services

7. Iceberg Jenkins Docker HubDocker Swarm db Pharo Pharo Pharo Pharo Pharo Pharo Pharo

8. Regular day of coding at the oﬃce…

9. Regular day of coding at the oﬃce… self ﬂag: #bob true become: false

10. Regular day of coding at the oﬃce… Gotta show this to my boss ! self ﬂag: #bob true become: false

11. Regular day of coding at the oﬃce… How ??? Gotta show this to my boss ! self ﬂag: #bob true become: false

12. Iceberg Jenkins Docker HubDocker Swarm db Pharo Pharo Pharo Pharo Pharo Pharo Pharo

13. Git commit Git push Pull request Review… “Good job” merge

14. Iceberg Jenkins Docker HubDocker Swarm db Pharo Pharo Pharo Pharo Pharo Pharo Pharo

15. Wassup ? (every 10 mins) Alright, pull  run tests  docker …

16. What is Docker? • Think about it as a Smalltalk image, but for Linux • Docker Image is build from a description (Dockerﬁle) • Then we can run it (once or multiple times)

17. Wassup ? (every 10 mins) Alright, pull  run tests  docker-compose build docker-compose push

18. Iceberg Jenkins Docker HubDocker Swarm db Pharo Pharo Pharo Pharo Pharo Pharo Pharo

19. Iceberg Jenkins Docker HubDocker Swarm db Pharo Pharo Pharo Pharo Pharo Pharo Pharo

20. Ansible: Orchestration • We need to start lots of stuﬀ (Pharo, Webserver, MessageQueue, Database…) • Ansible is a way to script typical unix admin things • Both used to setup the Linux machines and to start Docker

21. ansible-playbook -i myInventory myYml.yml (there is nothing worse than yaml!)

22. Iceberg Jenkins Docker HubDocker Swarm DB

23. Docker: Swarm • We want to run on multiple machines • Swarm allows to run “services” which scale to multiple docker containers • Manages Distribution, restart…

24. Iceberg Jenkins Docker HubDocker Swarm DB

25. Monitoring • Lots of machines (virtual and real) • Lot of diﬀerent software (database, web, message queue, lots Pharo images) • How do we look at it?

26. Monitoring • Grafana • Dashboard • Alarms: Get Notiﬁcations via Mail and in Slack • Docker images provide data via REST API • Pharo GC, Zinc Requests

27.

28. internet API message queue web client load balancer bikes DB cars DB trains DB buses DB API DB

29. load balancer Physical servers API DB DB DB bikes bikes cars carsbuses trains buses API

30. And that x 3 • We have 3 Swarms: • Alpha (development) • Beta (testing) • Production • And you can run the whole setup on your laptop, too! +100 Pharo images overall in our cluster

31. Much more… Pharo Library for Docker Swarm (work in progress)

32. Much more… • Lots of in-house libs • Visualise Docker Swarm with Roassal (ﬁrst work) • Docker Health Check from Pharo • Server for and Pharo app for Fuel Stack Traces • DockerEngine + OpenAPI Tell us what you want to see at the Show Us Your Project !

Docker and Pharo @ZWEIDENKER

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