This was an introductory talk about Devops presented as a guest lecture for Melbourne University masters students on Apr 2019. The presentation goes through my personal journey of discovery of Devops at different stages and in organizations of different size and maturity levels. It also contains a step by step example on setting up a continuous delivery pipeline and keeping all the items as code in your git repository. It also presents devops practices based in these four dimensions: Exchange of Crafts A culture of shared ownership Optimizing flow/delivery of value Operating sustainable services

1. Melbourne University – Apr 2019
@setoide
Javier Turegano

2. The beginning of the journey
DevOps – Exchange of Crafts

3. A long time ago in a country far,
far away….

4. • Weeks for it to be ready
• Lots of manual work
• It has a name, we treat them like PETS
1 Server

5. • Many servers
• Hundreds of virtual machines
• Many developers
• Few Sys Admins
• Pets everywhere!

6. FOSDEM - 2010

7. Applying Dev techniques/tools
to manage your fleet of servers
• Configuration as code
• Version control
• Use automation to apply the
configuration
Exchange of Crafts

8. My gig for the last 7 years
REA Group is a digital media business specialising in property

9. It’s considerably big
Hundreds of engineers
Thousand+ systems
Millions of visitors

11. Data!
Agent data
School data Sales data
Images and
floorplans
Location data
Segmentation
data
Enquiry data
Personal
data Recommendations
Market data
Listing data
Mortgage rates
Investment data
Ad-tech data
Analytics and
behavioural data

12. Before Devops

16. SiteOPs
Manager

19. If only there was someone around...

20. Software Development is a
team sport
Devops – A culture of shared ownership

22. Product Systems
Dev
Lead Dev
DevDelivery Lead

25. Scaling on call: from 10 ops to 100 devs
By Tom Partington

26. From Hackday project to
production ready
Devops – Automating flow/delivery of value

28. School Data API
Agent data
School data Sales data
Images and
floorplans
Location data
Segmentation
data
Enquiry data
Personal
data Recommendations
Market data
Listing data
Mortgage rates
Investment data
Ad-tech data
Analytics and
behavioural data

29. Database
Ruby API

30. Database
Ruby API
Json
Request
(coordinates)
Response
Property Details Page

32. ?

33. ENVIRONMENTS
Dev/Test/Prod
MONITORING
AND
METRICS
CONTINUOUS
DELIVERY

34. ENVIRONMENTS
Dev/Test/Prod
MONITORING
AND
METRICS

35. Let’s build a continuous
delivery pipeline!

36. Code
v1
Code
v1
/
code/*
code/dependencies.txt
db/schema.sql

37. Source
Repo
Code
v1
Code
v1
/
code/*
code/dependencies.txt
db/schema.sql

38. Source
Repo
Build
Code
v1
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh

39. Source
Repo
Build Unit Tests
Code
v1
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*

40. Source
Repo
Build Unit Tests Package
Code
v1
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile

41. Source
Repo
Build Unit Tests Package
Deploy
Test Env
Code
v1
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh

42. server 1
Database
Test Environment
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

43. server 1
Database
Test Environment
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml
X

44. server 1
Database
Test Environment
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml
X server 2
Cattle, no pets!
Minutes, not weeks

45. /
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml
Source
Repo
Build Unit Tests Package
Deploy
Test Env
Integration
Test
Code
v1

46. Source
Repo
Build Unit Tests Package
Deploy
Test Env
Integration
Test
Load
Test
Code
v1
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

47. Source
Repo
Build Unit Tests Package
Deploy
Test Env
Integration
Test
UI Test
Load
Test
Code
v1
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

48. Server 1
Database
Prod Environment
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

49. server 1 server 4
Database
server 2 server 3
Datacentre 1 Datacentre 2
Prod Environment
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

50. server 1 server 4
Database
server 2 server 3
Datacentre 1 Datacentre 2
Load Balancer
Prod Environment
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

51. server 1 server 4
Database
Database
Replica
server 2 server 3
Datacentre 1 Datacentre 2
Load Balancer
Prod Environment
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

52. Source
Repo
Build Unit Tests Package
Deploy
Test Env
Integration
Test
UI Test
Deploy
Prod
Load
Test
Code
v1
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

53. server 1 server 4
Database
Database
Replica
server 2 server 3
Datacentre 1 Datacentre 2
Load Balancer
Prod Environment
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml
v1v1 v1 v1

54. Source
Repo
Build Unit Tests Package
Deploy
Test Env
Integration
Test
UI Test
Deploy
Prod
Validate PROFIT !!
Load
Test
Rollback
Code
v1
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

55. Source
Repo
Build Unit Tests Package
Deploy
Test Env
Integration
Test
UI Test
Deploy
Prod
Validate PROFIT !!
Load
Test
Rollback
Code
v2
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

56. Source
Repo
Build Unit Tests Package
Deploy
Test Env
Integration
Test
UI Test
Deploy
Prod
Load
Test
Code
v2
v2
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

57. server 1 server 4
Database
Database
Replica
server 2 server 3
Datacentre 1 Datacentre 2
Load Balancer
v2 v2
Prod Environment
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml
v1 v1

58. server 1 server 4
Database
Database
Replica
server 2 server 3
Datacentre 1 Datacentre 2
Load Balancer
v2 v2v2v2
Prod Environment
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

59. Source
Repo
Build Unit Tests Package
Deploy
Test Env
Integration
Test
UI Test
Deploy
Prod
Validate PROFIT !!
Load
Test
Code
v2
v2
/
code/*
code/dependencies.txt
db/schema.sql
auto/build.sh
/tests/*
Dockerfile
auto/deploy.sh
infrastructure.yml

60. From Hackday project to
production ready
Devops - Operating sustainable services

61. Metrics

62. Logging

63. Alerting
Alerting
as
Code

64. Summary

65. Exchange of Crafts
A culture of shared ownership
Optimizing flow/delivery of value
Operating sustainable services

66. Where from here?
• Meetups (Infracoders, Devops Melb)
• Join DevopsGirls!
• Learn online
• Try some of the tools/techniches (Jenkins, Docker, AWS
free tier, logstash, Elastic apm )

67. Questions time!
@setoide
Javier Turegano
Melbourne University – Apr 2019