Docker в последняя время набрал огромную популярность как инструмент разработчиков и DevOps-специалистов, но все ещё не так активно используется для автоматизированного тестирования. Во время воркшопа я поделюсь несколькими сценариями, когда Docker может помочь автоматизировать то что ранее считалось непригодным к автоматизации. Также, мы попробуем создать свой собственный образ и запустить несколько контейнеров используя docker-compose.

1. 1CONFIDENTIAL
Docker in automated
testing
November 6, 2016

2. 2CONFIDENTIAL
SPEAKER NAME
Andrei Varabyeu
EPAM Systems, Solution Architect
Architect and Key Developer of
ReportPortal
5 years with EPAM and 7 years in IT
Areas: Software Development and
Automated Testing
Technologies: JVM-based stack

3. 3CONFIDENTIAL
• Why containers?
• Problems they solve
• Automated testing perspective
AGENDA

4. 4CONFIDENTIAL
• How to use docker (CLI, docker-compose)
• Dockerfiles
• Docker networking
NOT NOW

5. 5CONFIDENTIAL
Why?

6. 6CONFIDENTIAL
–Engineers need to spend time on setting up local
environment which is not productive
–Setting up new environment is expensive
–Integration problems with different Operating Systems
–Building different app packs for different environments
Environment problems

7. 7CONFIDENTIAL
Problem: Tester’s perspective
STAGING

8. 8CONFIDENTIAL
Welcome to Hell
Static website
Web frontend
Background workers
User DB
Analytics DB
Queue
Development VM QA Server Single Prod Server Onsite Cluster Public Cloud
Contributor’s
laptop
Customer Servers
? ? ? ? ? ? ?
? ? ? ? ? ? ?
? ? ? ? ? ? ?
? ? ? ? ? ? ?
? ? ? ? ? ? ?
? ? ? ? ? ? ?
Source: http://www.slideshare.net/dotCloud/why-docker

9. 9CONFIDENTIAL
Welcome to Hell
? ? ? ? ? ? ?
? ? ? ? ? ? ?
? ? ? ? ? ? ?
? ? ? ? ? ? ?
? ? ? ? ? ? ?
? ? ? ? ? ? ?
Source: http://www.slideshare.net/dotCloud/why-docker

10. 10CONFIDENTIAL
1950x: Cargo Hell
Multiplicity of goods
Multipilicity of methods
for transporting/storing
Do I worry about how
goods interact
(e.g. coffee beans next
to spices)
Can I transport quickly
and smoothly
(e.g. from boat to train to
truck)
Source: http://www.slideshare.net/dotCloud/why-docker

11. 11CONFIDENTIAL
Malcom McLean

12. 12CONFIDENTIAL
Solution: Intermodal Shipping Container
…in between, can be loaded
and unloaded, stacked,
transported efficiently over
long distances, and transferred
from one mode of transport to
another
A standard container that
is loaded with virtually
any goods, and stays
sealed until it reaches
final delivery.
Source: http://www.slideshare.net/dotCloud/why-docker

13. 13CONFIDENTIAL
Malcom McLean
• Massive reduction in losses due to theft or
damage
• Huge reduction in freight cost as percent of
final goods (from >25% to <3%)
• 90% of all cargo now shipped in a standard
container
• Order of magnitude reduction in cost and time to
load and unload ships
Source: http://www.slideshare.net/dotCloud/why-docker

14. 14CONFIDENTIAL
Docker is a shipping container system for code
Development
VM QA server Public Cloud
Contributor’s
laptopProduction
Cluster
Customer Data
Center
Static website
User DB Analytics DBQueueWeb frontend
DevOps: Configure
Once, Run Anything
Developer/QA:
Build Once, Run
Anywhere
Source: http://www.slideshare.net/dotCloud/why-docker

15. 15CONFIDENTIAL
What it means?
Engineer can setup environment and
start creating
the value within 5 minutes
Each Engineer. You don’t need to be
an expert in DevOps

16. 16CONFIDENTIAL
Docker vs Virtual Machine
Source: https://www.docker.com/what-docker

17. 17CONFIDENTIAL
Docker container anatomy

18. 18CONFIDENTIAL
Docker: how to build selenium server
Docker

19. 19CONFIDENTIAL
How?

20. 20CONFIDENTIAL
Automation perspective
• Start fresh environment
• Test Initial Scripts
• Test DB Update Scripts
• Perform disaster recovery testing
• Perform DVT tests
• Easy access to application logs

21. 21CONFIDENTIAL
Automation perspective
Tests
App 1 App 2
Docker
REST
API
API Client
docker-compose CLI

22. 22CONFIDENTIAL
Fresh Environment Scenario
[PRE]
Deploy
Test
[POST]
Shutdown
Wait until SUT is UP

23. 23CONFIDENTIAL
Disaster Recovery Scenario
[PRE]
Deploy
Check
Shutdown
smth
Check
[POST]
Shutdown

24. 24CONFIDENTIAL
DVT Tests
Gateway / Load Balancer
UI Service
API
Service
XXX
Service…
API
Service [2]
Internal Network
DVT
Tests

25. 25CONFIDENTIAL
Availability Tests
Gateway / Load Balancer
UI Service
API
Service
XXX
Service…
API
Service[2]

26. 26CONFIDENTIAL
Thank you!

27. 27CONFIDENTIAL
CONTACT ME
andrei_varabyeu@epam.com
andrei.varabyeu
avarabyeu

28. 28CONFIDENTIAL
THANK
YO
U