At Containers & Cloud Native Roadhow in Milan and Rome, Italy, we discussed and demonstrated CI/CD Pipelines with OpenShift Container Platform. - OpenShift 3.9 - Jenkins - Jenkins Pipeline - Maven Pipeline (Groovy) - Blue-Green, Canary Deployments

1. OPENSHIFT CONTAINER PLATFORM
CI/CD Build & Deploy
$ oc get users
Natale Vinto
EMEA OpenShift Specialist Solution Architect
T: @natalevinto #RedHat #openshift #devops
Tero Ahonen
EMEA OpenShift Senior Specialist Solution Architect
T: @tpahonen #RedHat #openshift #devops

2. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA2
“IT WORKS ON MY COMPUTER” 

3. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA3
BUILD AND DEPLOY CONTAINER IMAGES
DEPLOY YOUR
SOURCE CODE
DEPLOY YOUR
CONTAINER IMAGE
DEPLOY YOUR
APP BINARY

4. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA4
DEPLOY SOURCE CODE WITH
SOURCE-TO-IMAGE (S2I)
Git
Repository
BUILD APP
(OpenShift)
Developer
code
Source-to-Image
(S2I)
Builder
Image
Image
Registry
BUILD IMAGE
(OpenShift)
DEPLOY
(OpenShift)
deployApplication
Container
OpenShift DoesUser/Tool Does

5. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA5
DEPLOY APP BINARY WITH
SOURCE-TO-IMAGE (S2I)
Application
Binary
(e.g. WAR)
BUILD APP
(Build Infra) Existing Build
Process
build
Source-to-Image
(S2I)
Builder
Image
Image
Registry
BUILD IMAGE
(OpenShift)
DEPLOY
(OpenShift)
deployApplication
Container
OpenShift DoesUser/Tool Does

6. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA
DEPLOY
(Openshift)
6
DEPLOY DOCKER IMAGE
build
Application
Container
deploy
Application
Image
Image
Registry
BUILD IMAGE
(Build Infra) Existing Image
Build Process
PUSH
(Build Infra)
OpenShift DoesUser/Tool Does

7. CONTINUOUS INTEGRATION (CI)
CONTINUOUS DELIVERY (CD)

8. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA
CI/CD WITH BUILD AND DEPLOYMENTS
8
BUILDS
● Webhook triggers: build the app image whenever the code changes
● Image trigger: build the app image whenever the base language or app runtime changes
● Build hooks: test the app image before pushing it to an image registry
DEPLOYMENTS
● Deployment triggers: redeploy app containers whenever configuration changes or the
image changes in the OpenShift integrated registry or upstream registries

9. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA9
CONTINUOUS DELIVERY WITH CONTAINERS
source
repository
CI/CD
engine
dev container
physical
virtual
private cloud
public cloud

10. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA10
OPENSHIFT LOVES CI/CD
JENKINS-AS-A SERVICE
ON OPENSHIFT
HYBRID JENKINS INFRA
WITH OPENSHIFT
EXISTING CI/CD
DEPLOY TO OPENSHIFT

11. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA11
JENKINS-AS-A-SERVICE ON OPENSHIFT
● Certified Jenkins images with pre-configured plugins
● Jenkins S2I Builder for customizing the image
● OpenShift plugins to integrate authentication with
OpenShift and also CI/CD pipelines
● Dynamically deploys Jenkins slave containers
Plugins
Jobs
Configuration
Jenkins
(S2I)
Custom
Jenkins
Image
Jenkins
Image

12. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA
● Scale existing Jenkins infrastructure by dynamically provisioning Jenkins slaves on OpenShift
● Use Kubernetes plug-in on existing Jenkin servers
12
HYBRID JENKINS INFRA WITH OPENSHIFT
OPENSHIFT
APP APPrun job
JENKINS
SLAVE
Run Job
JENKINS
SLAVE
Run Job
build
JENKINS
MASTER
deploy

13. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA13
OPENSHIFT PIPELINES
● OpenShift Pipelines allow defining a
CI/CD workflow via a Jenkins pipeline
which can be started, monitored, and
managed similar to other builds
● Dynamic provisioning of Jenkins slaves
● Auto-provisioning of Jenkins server
● OpenShift Pipeline strategies
○ Embedded Jenkinsfile
○ Jenkinsfile from a Git repository
apiVersion: v1
kind: BuildConfig
metadata:
name: app-pipeline
spec:
strategy:
type: JenkinsPipeline
jenkinsPipelineStrategy:
jenkinsfile: |-
node('maven') {
stage('build app') {
git url: 'https://git/app.git'
sh "mvn package"
}
stage('build image') {
sh "oc start-build app --from-file=target/app.jar
}
stage('deploy') {
openshiftDeploy deploymentConfig: 'app'
}
}
Provision a
Jenkins slave for
running Maven

14. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA
APPLICATION
IMAGE
14
CONTINUOUS DELIVERY PIPELINE
DEV TEAM GIT SERVER
ARTIFACT
REPOSITORY
JENKINS
IMAGE BUILD
● S2I build from source
code
● S2I build from app binary
● Existing docker container
image build process

15. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA
CONTINUOUS DELIVERY PIPELINE
OPENSHIFT
IMAGE
REGISTRY
OPENSHIFT
CLUSTER
15
DEVELOPER GIT SERVER ARTIFACT REPOSITORY
OPENSHIFT
CI/CD PIPELINE
(JENKINS)
IMAGE BUILD
& DEPLOY
OPENSHIFT
IMAGE
REGISTRY
OPENSHIFT
CLUSTER
NON-PROD PRODDEV

16. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA
OPENSHIFT
IMAGE
REGISTRY
OPENSHIFT
CLUSTER
16
CONTINUOUS DELIVERY PIPELINE
DEVELOPER GIT SERVER ARTIFACT REPOSITORY
OPENSHIFT
CI/CD PIPELINE
(JENKINS)
IMAGE BUILD
& DEPLOY
OPENSHIFT
IMAGE
REGISTRY
OPENSHIFT
CLUSTER
PROMOTE
TO TEST
NON-PROD PRODDEV TEST

17. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA
OPENSHIFT
IMAGE
REGISTRY
OPENSHIFT
CLUSTER
17
CONTINUOUS DELIVERY PIPELINE
DEVELOPER GIT SERVER ARTIFACT REPOSITORY
OPENSHIFT
CI/CD PIPELINE
(JENKINS)
IMAGE BUILD
& DEPLOY
OPENSHIFT
IMAGE
REGISTRY
OPENSHIFT
CLUSTER
PROMOTE
TO TEST
PROMOTE
TO UAT
NON-PROD PRODDEV TEST UAT

18. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA
ServiceNow
JIRA Service Desk
Zendeks
BMC Remedy
OPENSHIFT
IMAGE
REGISTRY
OPENSHIFT
CLUSTER
18
CONTINUOUS DELIVERY PIPELINE
DEVELOPER GIT SERVER ARTIFACT REPOSITORY
OPENSHIFT
CI/CD PIPELINE
(JENKINS)
IMAGE BUILD
& DEPLOY
OPENSHIFT
IMAGE
REGISTRY
OPENSHIFT
CLUSTER
GO
LIVE?
PROMOTE
TO TEST
PROMOTE
TO UAT
RELEASE MANAGER
NON-PROD PROD
☒
☑
DEV TEST UAT

19. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA
OPENSHIFT
IMAGE
REGISTRY
OPENSHIFT
CLUSTER
19
CONTINUOUS DELIVERY PIPELINE
DEVELOPER
GIT SERVER ARTIFACT REPOSITORY
OPENSHIFT
CI/CD PIPELINE
(JENKINS)
IMAGE BUILD
& DEPLOY
OPENSHIFT
IMAGE
REGISTRY
OPENSHIFT
CLUSTER
GO
LIVE?
PROMOTE
TO TEST
PROMOTE
TO UAT
PROMOTE
TO PROD
RELEASE MANAGER
NON-PROD PRODDEV TEST UAT
☒
☑

20. DEMO TIME

21. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA21
OPENSHIFT CI/CD PIPELINE

22. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA22
OCP NINJAS!

23. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA23

24. CONTAINERS & CLOUD-NATIVE ROADSHOW ROMA24
https://github.com/OpenShiftDemos/openshift-cd-demo
https://learn.openshift.com/introduction/
DEMO LINKS

25. THANK YOU
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