Fabric8CI/CD

● happy father

● SA in EPAM Systems

● Java is my primary language

● hands-on-coding with Groovy, Ruby

● exploring FP with Erlang/Elixir

● passionate about agile, clean code and devops

Agenda● What is CI/CD?● Foundation● Fabric8● Demo● Takeaways● References● Q&A

What...is

CI/CD?

CI/CD

Foundation

Architecture

● Image○ Read-only FS○ Deploy & Share○ Blueprint for a

container

Concepts● Container

○ Read-write FS○ Image Instance○ Has a lifecycle

● Volume○ External storage○ Share data○ Persist data

● Registry○ Image Repository

Storage

Docker CLI● docker search #search for images in a registry● docker pull #downloads image from a registry● docker images #displays existing images on a machine● docker run #creates and runs container from an image● docker ps #displayes all containers● docker start/stop #starts/stops containers● docker rm #removes containers● docker rmi #removes images

Concepts● Pod (collection of one or more Docker containers)

● Replication Controller (creates and cares about PODs)

● Service (proxy for a collection of PODs with single IP)

● Namespaces (divide cluster resources between multiple uses)

● Nodes (worker machine)

● Secret (holds sensitive information)

Concepts● Labels (used to specify identifying attributes of objects)

● Volume (volume with POD’ lifecycle)

● Persistent Volumes (networked storage in the cluster)

● Persistent Volume Claim (a request for storage)

● etc

Architecture

K8s CLI● kubectl get pods #displayes PODs● kubectl get services #displayes services● kubectl get rc #displayes replication controllers● kubectl get nodes #displayes nodes● kubectl create #creates objects ● kubectl delete #deletes objects● kubectl edit #allows to modify resource on the server● kubectl scale #sets a new size for RC or DC● kubectl autoscale #auto sets a new size for RC or DC based on metrics

Concepts● Build (transformation of input parameters into a resulting object)

● Image Stream (automatically performs image build on events)

● Route (exposes service by externally-reachable name)

● Template (describes a set of objects that can be parameterized and processed to

produce a list of objects for creation by OpenShift)

● Deployment Config (adds support for software deployments concept)

● Project (is a Kubernetes namespace with additional annotations)

Architecture

OpenShift CLI● oc project #switches between projects● oc get routes #displayes routes● oc rsh $cnt #ssh into container● oc new-app #creates new application● oc new-build #creates new build● oc deploy #views, starts, cancels, or retries a deployment● oc rollback #reverts part of an application back to a previous deployment● oc import-image #import Docker image from registry

History● Fuse ESB (Open Source integration platform by FuseSource)

● Fabric (extension for managing many ESBs)

● Fabric8 1.x (Red Hat acquired FuseSource in 2012; Fuse ESB => JBoss Fuse; Fabric

closed; based on Zookeeper)

● Fabric8 2.x (on top of Kubernetes, 1.x become Jube - pure Java implementation of

Kubernetes API)

Architecture

Services & Tools● Fabric8 Console (management console for Kubernetes)

● CD Pipeline (set of CI/CD and infra mgm apps baked into Docker images)

● DevOps Tools (set of tools to deal with k8s and OpenShift)

● iPaaS (set of apps to provide orchestration of messaging, API and integration

svcs)

Demo

Takeaways- Docker is cool for light-weight v12n and simplifies things

- Kubernetes is powerful container orchestration platform

- OpenShift enhances “Build” capabilities on top of k8s

- Fabric8 enables CI/CD to shine with less effort

- Explore technologies to move faster

References- Fabric8 http://fabric8.io

- Kubernetes http://k8s.io/

- OpenShift https://www.openshift.org/

- Jenkins Job DSL https://jenkinsci.github.io/job-dsl-plugin/

- Source Code https://github.com/webdizz/fabric8-ci-cd

Q&A

Izzet_Mustafayev@EPAM.com @webdizz webdizz izzetmustafaiev http://webdizz.name

Thanks