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Presented By:
Azmat Hasan
Software Consultant
CONCOURSE CI

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Our Agenda
Introduction
Why Concourse? & its features
Architecture
Fly CLI
Pipeline
DEMO

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What is Concourse?
The concourse is an open-source pipeline based CI system. It is most commonly used
for CI/CD and is built to scale to any kind of automation pipeline, from simple to
complex.
Built on the simple mechanics of resources, tasks, and jobs, Concourse
presents a general approach to automation that makes it great for CI/CD.
Important Points:
● The concourse is written in GoLang.
● The concourse is a 100% open source
● It uses postgress as a backend
● Uses containers to run the tasks

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Why Concourse?
● Why not Jenkins ?
○ Plugin based
○ No strict isolation
○ Too much dependency
○ Well java .... ( )
● Concourse
○ Pluggable Resource Interface
○ Running builds in Containers Natively
○ Submitting builds from the local file system up to run in CI
○ Reproducible

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Concourse Features

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1. Configure as code

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2. Visualize to verify

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3. CI under source control
4. Reproducible,
debuggable builds

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5. Rapid local iteration

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6. Bring your own integrations

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Architecture

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The first step to getting started with Concourse is to install the fly CLI tool.
All configuration and administration is done using the fly CLI.
Login:
fly -t knoldus login -c http://localhost:8080 -u admin -p admin
Create Pipeline:
fly -t knoldus set-pipeline -p spring-boot-service -c pipeline.yml
Validate pipeline
fly validate-pipeline -c pipeline.yaml
Trigger a job from a pipeline
fly -t {target} trigger-job --job pipelineName/jobName
Delete a pipeline
fly -t {target} destroy-pipeline -p pipelineName

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A pipeline is the result of configuring Jobs and
Resources together. When you configure a pipeline, it
takes on a life of its own, to continuously detect
resource versions and automatically queue new builds
for jobs as they have new available inputs.

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● Resources are the heart and soul of Concourse. They represent all external inputs to and outputs of jobs in
the pipeline.
● Jobs determine the actions of your pipeline. They determine how resources progress through it, and how the
pipeline is visualized.
● Task is the smallest configurable unit in a Concourse pipeline. A task can be thought of as a function from
task.inputs to task.outputs that can either succeed or fail.

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DEMO

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1. https://concourse-ci.org/docs.html
2. https://automate-it.today/what-is-concourse-ci/