** Devops CI-CD pipeline using Containers ** by Priyanka Dive, DevOps Engineer/Senior Solutions Architect. Priyanka will briefly introduce DevOps practices and technologies. She will also give a demo of an end-to-end DevOps pipeline using Git (source code management), Jenkins ( continuous integration), Sonarqube (code analysis) with Docker & Kubernetes. Presented at Nulab Drinking Code meetup (30 August 2019): https://www.meetup.com/DrinkingCodeSG/events/263412142/

1. DEVOPS CI-CD
PIPELINE WITH
CONTAINERS
Priyanka Dive

2. WHO AM I ?
➤ Devops Engineer currently working at PCCW Solutions Singapore
➤ Have 4+ years experience
➤ Author of “Devops for Salesforce”
➤ Someone who like to learn something new everyday
➤ Linkedin : https://www.linkedin.com/in/priyanka-dive23/

3. CONTENT
➤ What is Devops ?
➤ Can “Dev & Ops” work together ?
➤ Docker & Kubernetes
➤ Devops Practices & Technologies
➤ Source code management with Gitlab
➤ Continuous Integration & Continuous
Deployment
➤ Example of Jenkins Pipeline
➤ Pipeline concepts
➤ Code Analysis
➤ Demo of Sample CI-CD

4. WHAT IS DEVOPS ?
➤ “DevOps (development and operations) is an enterprise software
development phrase used to mean a type of agile relationship between
development and IT operations.
➤ The goal of DevOps is to change and improve the relationship by advocating
better communication and collaboration between these two business units.”
➤ Cultural change in organization
➤ Developers & Operations Team working together with responsibility

5. CAN “DEV & OPS” WORK TOGETHER ?
➤ Developer Team: It’s working on my local
➤ Operations Team : Build/deployment failed in production
➤ Can we work together (Dev+Ops)
Devops :
1. Similar environments for all (Dev, Test, Stage, Production)
2. Can we automate everything (integration, code analysis,
deployment, infrastructure)
3. Extend helping hand to each other

6. DOCKER & KUBERNETES…
➤ “Docker is a set of platform-as-a-service products that use
operating-system-level virtualisation to deliver software in
packages called containers.”
➤ Build : Building and deploying new applications is faster with
containers.
➤ Ship : Push it to container registry
➤ Run Anywhere : Different environments dev, test, stage, prod
➤ Docker containers: Code + Dependancies/libraries to run
code

7. KUBERNETES
➤ “Kubernetes (K8s) is an open-source system for automating
deployment, scaling, and management of containerised
applications.”
➤ Containers + Orchestration = Docker + Kubernetes
➤ Run Anywhere : on-premises, hybrid, or public cloud
infrastructure
➤ There are multiple orchestrators available like Mesos, Docker
Swarm, etc

8. Devops Practices & Technologies
➤ Automate Provisioning with Infrastructure as a Code
➤ Continuous Build : build for every commit
➤ Continuous Integration
➤ Code Analysis
➤ Continuous Testing
➤ Continuous Delivery
➤ Automated Release Management
➤ Monitoring / Log management

9. SOURCE CODE MANAGEMENT WITH
GITLAB➤ Why versioning ?
➤ Source Code Management : “Source code management
enables coordination, sharing and collaboration across the
entire software development team. Track and merge
branches, audit changes and enable concurrent work, to
accelerate software delivery.”
➤ Tracking changes looks like finding “a needle in a haystack”
➤ Branching Strategy : development, test ,stage, master
➤ Feature branches & Hot-Fixes
➤ Link : http://localhost

10. CONTINUOUS INTEGRATION &
CONTINUOUS DELIVERY …➤ “continuous integration (CI) is the practice of merging all
developers' working copies to a shared mainline several times
a day”
➤ Integration with version control (Git)
➤ Build automation (Jenkins, gitlab-ci, Drone-ci, etc) : Build for
every code commit
➤ Run Tests :
➤ Unit Tests, Integration tests (selenium)
➤ Test code in similar environment like production

11. CONTINUOUS INTEGRATION &
CONTINUOUS DELIVERY➤ “A continuous delivery (CD) pipeline is an automated
expression of your process for getting software from version
control right through to your users and customers.”
➤ Jenkins Pipeline helps us in implementing and
integrating continuous delivery pipelines into Jenkins.
➤ Automating Deployments
➤ See results per Commit (Track errors in code, test,
deployment, security, etc)
➤ Delivery pipelines "as code” : Jenkinsfile
➤ Link: http://localhost/root/devops-ci-cd-demo/blob/master/Jenkinsfile

12. EXAMPLE OF JENKINS PIPELINE

13. Pipeline concepts
➤ Pipeline : A Pipeline is a user-defined model of a CD pipeline.
Definition of your build with multiple stages of your application
like build ,test, deliver.
➤ Node : A node is where all stages of your pipeline will run.
➤ Stage : A Stage is set of tasks which we need to run for entire
pipeline (e.g. "Build", "Test" and "Deploy" stages). Also used for
showing progress of individual.
➤ Step : A single task. Fundamentally, a step tells Jenkins what to
do at a particular point in time (or "step" in the process).
➤ For example, to execute the shell command make use
the sh step: sh 'make'.

15. CODE ANALYSIS
➤ SonarQube is an open-source tool for continuous inspection of
code quality.
➤ What it Does:
1. Static analysis of code
2. Detect bugs, code smells
3. Security vulnerabilities
4. Report duplicate code , unit test, code coverage ,
etc
➤ Can be integrated with multiple CI tools like Jenkins, gitlab-ci ,
etc

16. DEMO OF SAMPLE CI-CD
➤ Deploying sample nodejs application with CI-CD using Gitlab ,
Jenkins (CI-CD) on Kubernetes
➤ Everything is on local machine
➤ Gitlab: http://localhost/
➤ Jenkins: http://localhost:8080
➤ Sonarqube: http://localhost:9000

17. “Continuous Improvement …

18. REFERENCE
➤ https://www.webopedia.com/TERM/D/devops_development_operations.html
➤ https://www.docker.com/
➤ https://kubernetes.io/
➤ https://jenkins.io/doc/tutorials/build-a-node-js-and-react-app-with-npm/
➤ https://docs.sonarqube.org/latest/

19. THANK YOU…