GitOps, Jenkins & Jenkins XTracy Miranda, Director of Open Source Community | CloudBees

tmiranda@cloudbees.com | @tracymiranda

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What is DevOps?

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DevOps is the new legacy

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Cloud Native Technologies

• On demand self-service

• Broad network access

• Resource pooling

• Rapid elasticity

• Measured service

DORA State of DevOps

Reports

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The Science of Lean Software and DevOps

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Building and scaling high performance technology organisations

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ThroughputFrequent deployments

Low lead time from commit to deploy

StabilityFast mean time to recovery (MTTR)

Low change failure rate

GitOps

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Operation by pull request

Git as the single place where we operate

All changes are observable

https://www.weave.works/blog/what-is-gitops-really

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Jenkins

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JENKINS

PIPELINE

JENKINS

EVERGREEN

CONFIGURATION

AS CODE

CLOUD NATIVE

JENKINS

JENKINS X

CONFIGURATION AS CODE

WHAT IF …

C O N F I G U R AT I O N A S C O D E

You can apply a sane change control

practice to Jenkins configuration?

Jenkins stops being a snowflake?

You can safely roll back a failed upgrade?

You could cookie cutter lots of

identical Jenkins instances?

jenkins:

securityRealm:

ldap:

configurations:

- server: ldap.acme.com

rootDN: dc=acme,dc=fr

managerPasswordSecret:

${LDAP_PASSWORD}

cache:

size: 100

ttl: 10

userIdStrategy: CaseSensitive

groupIdStrategy: CaseSensitive

1

This is

happening

Launch Docker container withsaid config file

Getting Started with config-as-code

• https://www.praqma.com/stories/start-jenkins-config-as-code/

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JENKINS X

COMMON PLATFORM IN ALL CLOUDS

AWS, Microsoft Azure, Google Cloud

Platform, OpenShift, Cloud Foundry

FUNCTIONALITY

Cluster scheduler, service discovery,

load balancer

EXTENSIBILITY

NEW Cloud Operating System

You can have fun

tinkering

Or you can just get

productive

Jenkins X Vision

Figure out the best practice of how to CD cloud native appsNot just build and test, but review, promote, changelog, collaborate, etc.

Integrate best of breed software in this ecosystem to achieve it

Democratize it by building a pleasant CLI that represents high-level

steps

Be opinionated on how to do things

Kubernetes is a means to the end

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Best Practice We Preach

Use cloud to develop, keep your

laptop for what it needs to do

Promote apps through

multiple environments

GitOps: deployment should be

recorded and tracked in Git

Develop/collaborate changes in PR,

review/test before merge

Keep master always releasable

Inform other people about

where changes are

Deploy often and in small increments

Wrap-up

Conclusions

• Configuration as code is a best practice to follow.

• If you are using cloud native technologies, GitOps has essentialtechniques and practices to help you go faster without costing you stability.

• There are some problems your tools won’t fix, for everything else there’s Jenkins X.

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