The Road to Continuous Deployment: A Case Study (Bosnia Agile Day 2017)

Slide 1

Slide 1 text

THE ROAD TO CONTINUOUS DEPLOYMENT - A CASE STUDY MICHIEL ROOK @michieltcs

Slide 2

Slide 2 text

▸ Developer, consultant, trainer, speaker ▸ @michieltcs

Slide 3

Slide 3 text

No content

Slide 4

Slide 4 text

@michieltcs

Slide 5

Slide 5 text

@michieltcs Large aging monolith

Slide 6

Slide 6 text

@michieltcs Large aging monolith Generates income

Slide 7

Slide 7 text

@michieltcs Large aging monolith Slow & complex Generates income

Slide 8

Slide 8 text

@michieltcs Large aging monolith Slow & complex Generates income Technical debt

Slide 9

Slide 9 text

@michieltcs

Slide 10

Slide 10 text

@michieltcs Manual releases

Slide 11

Slide 11 text

@michieltcs Manual releases Fragile tests

Slide 12

Slide 12 text

@michieltcs Manual releases Frequent issues Fragile tests

Slide 13

Slide 13 text

@michieltcs Manual releases Frequent issues Fragile tests Low velocity

Slide 14

Slide 14 text

GOALS @michieltcs

Slide 15

Slide 15 text

GOALS REDUCE  ISSUES 1 @michieltcs

Slide 16

Slide 16 text

GOALS REDUCE  ISSUES REDUCE  LEAD TIME 1 2 @michieltcs

Slide 17

Slide 17 text

GOALS REDUCE  ISSUES REDUCE  LEAD TIME INCREASE PRODUCTIVITY 1 2 3 @michieltcs

Slide 18

Slide 18 text

GOALS REDUCE  ISSUES REDUCE  LEAD TIME INCREASE PRODUCTIVITY INCREASE MOTIVATION 1 2 3 4 @michieltcs

Slide 19

Slide 19 text

REFACTOR? REBUILD?

Slide 20

Slide 20 text

APPROACH ▸ API ﬁrst ▸ Services per domain object (job, jobseeker, ...) ▸ Migrate individual pages @michieltcs

Slide 21

Slide 21 text

ORIGINAL MONOLITH DB @michieltcs

Slide 22

Slide 22 text

ORIGINAL MONOLITH PROXY SERVICE ORIGINAL MONOLITH DB DB DB @michieltcs

Slide 23

Slide 23 text

ORIGINAL MONOLITH PROXY SERVICE ORIGINAL MONOLITH ORIGINAL MONOLITH SERVICE SERVICE SERVICE PROXY DB DB DB DB DB DB @michieltcs

Slide 24

Slide 24 text

ARCHITECTURE FRONTENDS ARE SERVICES @michieltcs

Slide 25

Slide 25 text

ARCHITECTURE FRONTENDS ARE SERVICES SERVICES BEHIND LOAD BALANCERS @michieltcs

Slide 26

Slide 26 text

ARCHITECTURE FRONTENDS ARE SERVICES SERVICES BEHIND LOAD BALANCERS ACCESS LEGACY DB'S @michieltcs

Slide 27

Slide 27 text

ARCHITECTURE FRONTENDS ARE SERVICES SERVICES BEHIND LOAD BALANCERS ACCESS LEGACY DB'S SERVICES IN CONTAINERS @michieltcs

Slide 28

Slide 28 text

IMPROVING

Slide 29

Slide 29 text

CONTINUOUS EVERYTHING

Slide 30

Slide 30 text

DEV BUILD / TEST CONTINUOUS INTEGRATION @michieltcs

Slide 31

Slide 31 text

DEV BUILD / TEST ACCEPTANCE PRODUCTION CONTINUOUS DELIVERY @michieltcs

Slide 32

Slide 32 text

DEV BUILD / TEST STAGING / ACCEPTANCE PRODUCTION CONTINUOUS DEPLOYMENT @michieltcs

Slide 33

Slide 33 text

EVERY COMMIT GOES TO PRODUCTION

Slide 34

Slide 34 text

IF IT HURTS DO IT MORE OFTEN

Slide 35

Slide 35 text

SMALL STEPS @michieltcs

Slide 36

Slide 36 text

SMALL STEPS EARLY FEEDBACK @michieltcs

Slide 37

Slide 37 text

SMALL STEPS EARLY FEEDBACK REDUCE TIME TO RECOVER @michieltcs

Slide 38

Slide 38 text

SMALL STEPS EXPERIMENTS! EARLY FEEDBACK REDUCE TIME TO RECOVER @michieltcs

Slide 39

Slide 39 text

ONLY COMMIT TO MASTER

Slide 40

Slide 40 text

NO BRANCHES

Slide 41

Slide 41 text

NO BRANCHES REALLY.

Slide 42

Slide 42 text

No content

Slide 43

Slide 43 text

No content

Slide 44

Slide 44 text

DELAYING INTEGRATION

Slide 45

Slide 45 text

CONFLICTS

Slide 46

Slide 46 text

FEATURE TOGGLES

Slide 47

Slide 47 text

DECOUPLE DEPLOYMENTS  FROM RELEASES

Slide 48

Slide 48 text

@michieltcs

Slide 49

Slide 49 text

FEATURE TOGGLE DEBT

Slide 50

Slide 50 text

CODE REVIEWS?

Slide 51

Slide 51 text

PAIR PROGRAMMING

Slide 52

Slide 52 text

CONTINUOUS INLINE CODE REVIEW

Slide 53

Slide 53 text

DEVOPS

Slide 54

Slide 54 text

DEVSECOPS

Slide 55

Slide 55 text

DEVSECQAOPS

Slide 56

Slide 56 text

DEVSECQABIZOPS

Slide 57

Slide 57 text

DEVSECQABIZNETOPS

Slide 58

Slide 58 text

DEVSECQABIZSYSNETOPS

Slide 59

Slide 59 text

DEVTESTSECQABIZSYSNETOPS

Slide 60

Slide 60 text

DEV*OPS

Slide 61

Slide 61 text

TEAM BUILDS IT

Slide 62

Slide 62 text

TEAM RUNS IT

Slide 63

Slide 63 text

TEAM IMPROVES IT

Slide 64

Slide 64 text

TEAM IS RESPONSIBLE

Slide 65

Slide 65 text

BUILD PIPELINE

Slide 66

Slide 66 text

CONNECT THE DOTS

Slide 67

Slide 67 text

AUTOMATE REPEATABLE THINGS

Slide 68

Slide 68 text

CONTINUOUS TESTING

Slide 69

Slide 69 text

CONFIDENCE

Slide 70

Slide 70 text

DEFENSE IN DEPTH UNIT TESTS INTEGRATION  TESTS ACCEPTANCE  TESTS UI TESTS @michieltcs

Slide 71

Slide 71 text

DEFENSE IN DEPTH UNIT TESTS INTEGRATION  TESTS ACCEPTANCE UI TESTS @Test  public void jobCannotBeFound() {  when(jobRepository.getById(EXPECTED_JOB_ID))  .thenReturn(null);    JobService jobService = new JobService(jobRepository);    assertNull(jobService.getById(EXPECTED_JOB_ID));  verify(jobRepository).getById(EXPECTED_JOB_ID);  } @michieltcs

Slide 72

Slide 72 text

DEFENSE IN DEPTH UNIT TESTS INTEGRATION  TESTS ACCEPTANCE  TESTS UI TESTS @Test  public void shouldFindJob() {  expectedJob = loadFixture('active_job.yml');  actualJob = repository.getById(expectedJob.getId());    assertThat(actualJob, isA(Job.class));  assertEquals(expectedJob.getId(), actualJob.getId());  } @michieltcs

Slide 73

Slide 73 text

DEFENSE IN DEPTH UNIT TESTS INTEGRATION  TESTS ACCEPTANCE  TESTS UI TESTS Scenario: Link to related job  Given a job exists  And there are related jobs available  When that job is viewed  Then a list of related jobs is shown  And each related job links to the detail page of the related job @michieltcs

Slide 74

Slide 74 text

DEFENSE IN DEPTH UNIT TESTS INTEGRATION  TESTS ACCEPTANCE  TESTS UI TESTS @michieltcs

Slide 75

Slide 75 text

UNIT TESTS INTEGRATION TESTS ACCEPTANCE TESTS UI TESTS SMOKE  TESTS Cost Speed Exploratory  testing Monitoring @michieltcs

Slide 76

Slide 76 text

GOOD ENOUGH

Slide 77

Slide 77 text

PIPELINE SPEED = KEY

Slide 78

Slide 78 text

ROLLING UPDATE

Slide 79

Slide 79 text

LOAD BALANCER ROLLING UPDATE SERVICE V1.0 SERVICE V1.0 SERVICE V1.0 @michieltcs

Slide 80

Slide 80 text

LOAD BALANCER ROLLING UPDATE SERVICE V1.0 SERVICE V1.0 SERVICE V1.0 SERVICE V1.1 @michieltcs

Slide 81

Slide 81 text

LOAD BALANCER ROLLING UPDATE SERVICE V1.0 SERVICE V1.1 SERVICE V1.0 SERVICE V1.0 @michieltcs

Slide 82

Slide 82 text

LOAD BALANCER ROLLING UPDATE SERVICE V1.0 SERVICE V1.1 SERVICE V1.0 SERVICE V1.1 @michieltcs

Slide 83

Slide 83 text

LOAD BALANCER ROLLING UPDATE SERVICE V1.0 SERVICE V1.1 SERVICE V1.1 SERVICE V1.0 @michieltcs

Slide 84

Slide 84 text

LOAD BALANCER ROLLING UPDATE SERVICE V1.0 SERVICE V1.1 SERVICE V1.1 SERVICE V1.1 @michieltcs

Slide 85

Slide 85 text

LOAD BALANCER ROLLING UPDATE SERVICE V1.1 SERVICE V1.1 SERVICE V1.1 SERVICE V1.0 @michieltcs

Slide 86

Slide 86 text

LOAD BALANCER ROLLING UPDATE SERVICE V1.1 SERVICE V1.1 SERVICE V1.1 @michieltcs

Slide 87

Slide 87 text

PIPELINE AS CODE node {  stage('Run tests') {  sh "phpunit"  sh "behat"  }    stage('Build docker image') {  sh "docker build -t jobservice:${env.BUILD_NUMBER} ."  sh "docker push jobservice:${env.BUILD_NUMBER}"  }    stage('Deploy staging') {  sh "ansible-playbook -e BUILD=${env.BUILD_NUMBER}  -i staging deploy.yml"  }    stage('Deploy production') {  sh "ansible-playbook -e BUILD=${env.BUILD_NUMBER}  -i prod deploy.yml"  }  } @michieltcs

Slide 88

Slide 88 text

@michieltcs

Slide 89

Slide 89 text

FEEDBACK!

Slide 90

Slide 90 text

RESULTS

Slide 91

Slide 91 text

@michieltcs Team acceptance

Slide 92

Slide 92 text

Feature toggle cap @michieltcs Team acceptance

Slide 93

Slide 93 text

Feature toggle cap Business alignment & agility @michieltcs Team acceptance

Slide 94

Slide 94 text

Feature toggle cap Business alignment & agility Focus on replacing legacy @michieltcs Team acceptance

Slide 95

Slide 95 text

Reduced number of issues 1 @michieltcs

Slide 96

Slide 96 text

Reduced number of issues 1 Build time  < 10 min.  (50+ per day) 2 4 @michieltcs

Slide 97

Slide 97 text

Reduced number of issues 1 Build time  < 10 min.  (50+ per day) Improved metrics & audience statistics 2 3 @michieltcs

Slide 98

Slide 98 text

Reduced number of issues 1 Build time  < 10 min.  (50+ per day) Improved metrics & audience statistics Increased conﬁdence, velocity & fun 2 3 4 @michieltcs

Slide 99

Slide 99 text

Reduce cycle times. React faster to the market and test product ideas. Make things! We make Agile, DevOps and Continuous Delivery accessible! Hands-on, results- oriented approach to get you where you need to be. Modern infrastructure and pipelines in minutes.

Slide 100

Slide 100 text

THANK YOU! @michieltcs / [email protected] www.michielrook.nl