Next Level DevOps Implementation with GitOps

Nov 21, 20210 likes280 views

The document summarizes Ramadoni Ashudi's upcoming presentation on "Next Level DevOps Implementation with GitOps" at the GNOME Asia Summit 2021. The presentation will cover What is DevOps, What is GitOps, GitOps principles, how GitOps works, advantages of GitOps, best practices, and GitOps tools. It will include a demo of a GitOps workflow using tools like Argo CD, Kustomize, Jenkins, Docker Hub, GitHub and Kubernetes.

GNOME ASIA SUMMIT 2021
Next Level
DevOps Implementation
with GitOps
Ramadoni Ashudi
ramadoni.ashudi@gmail.com
20-21 November 2021

Hello! I’m Ramadoni
➔ IT Infra & Cloud Automation at
Commonwealth Bank Indonesia
➔ Student of Magister Informatics
Engineering at Universitas AMIKOM
Yogyakarta
https://github.com/invaleed

1
Agenda
➔ What is DevOps?
➔ What is GitOps?
➔ GitOps Principals
➔ How GitOps Works?
➔ Advantage of GitOps
➔ Best Practices of GitOps
➔ GitOps Tools
➔ Demo

What is DevOps?
DevOps is the combination of cultural philosophies,
practices, and tools that increases an organization’s
ability to deliver applications and services at high
velocity
https://aws.amazon.com/devops/what-is-devops/

Process
Culture & MIndset
Productivity
Efficiency
Continuous Integration
Continuous Delivery
Microservices
Monitoring & Logging
Etc…
Bitbucket
Jenkins
Docker
Kubernetes
ELK
Jira & Confluence
Etc…
People
Tools

Basic Concepts of DevOps Practices
Manual
Automatic
1
2
3
Result
Result

What is GitOps?
GitOps is a way of implementing Continuous
Deployment for cloud native applications.
https://www.gitops.tech/#what-is-gitops

What is GitOps?
GitOps: versioned CI/CD on top of declarative
infrastructure.
- Kelsey Hightower -

What is GitOps?
Set of practices to manage infrastructure and
application deployment using Git as a single source
of truth with declarative model

1
GitOps
Principles
➔ Describe the entire system
declaratively
➔ The desired system state is versioned
in Git
➔ Automatically apply approved
changes to the system
➔ Ensure correctness and alert on
divergence with software agents
Source: https://www.weave.works

Set “annotation”
Set “replicas”
Set “image”
nginx-deployment.yml

How GitOps
Works?
➔ GitOps architecture enables
developers to manage
infrastructure operations using Git
as the only source of truth.
➔ Gitops uses the operator as a
deployment synchronizer that will
always compare the desired state
and the actual state.

GitOps Workflow
Actual State
Desired State
Operator Ensure
Actual State == Desired state

Advantages of
GitOps
➔ Faster Time to Market
➔ Improve Security
➔ More Reliable
➔ Improved Developer Experience
➔ Auditable
➔ Standardized Operations across the
Infrastructure

GitOps Best
Practices
➔ Split Repo: One For App Repository,
Another For Environment/Config
Repository
➔ Test the Manifests Before Commit
➔ Git Manifests Should Not Change Due
To External Changes
➔ Plan How to Manage Secrets

GitOps Tools ➔ Flux CD - https://fluxcd.io
➔ Argo CD - https://argoproj.github.io/cd
➔ Jenkins X - https://jenkins-x.io

Demo ➔ Code Repository: Github
➔ CI Server: Jenkins
➔ Container Repository: Docker Hub
➔ GitOps Operator: Argo CD
➔ Configuration Manager for K8s:
Kustomize
➔ Platfrorm Deployment: Kubernetes
Vanilla

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Next Level DevOps Implementation with GitOps

1. GNOME ASIA SUMMIT 2021 Next Level DevOps Implementation with GitOps Ramadoni Ashudi [email protected] 20-21 November 2021

2. Hello! I’m Ramadoni ➔ IT Infra & Cloud Automation at Commonwealth Bank Indonesia ➔ Student of Magister Informatics Engineering at Universitas AMIKOM Yogyakarta https://github.com/invaleed

3. 1 Agenda ➔ What is DevOps? ➔ What is GitOps? ➔ GitOps Principals ➔ How GitOps Works? ➔ Advantage of GitOps ➔ Best Practices of GitOps ➔ GitOps Tools ➔ Demo

4. What is DevOps? DevOps is the combination of cultural philosophies, practices, and tools that increases an organization’s ability to deliver applications and services at high velocity https://aws.amazon.com/devops/what-is-devops/

5. Process Culture & MIndset Productivity Efficiency Continuous Integration Continuous Delivery Microservices Monitoring & Logging Etc… Bitbucket Jenkins Docker Kubernetes ELK Jira & Confluence Etc… People Tools

6. Basic Concepts of DevOps Practices Manual Automatic 1 2 3 Result Result

7. What is GitOps? GitOps is a way of implementing Continuous Deployment for cloud native applications. https://www.gitops.tech/#what-is-gitops

8. What is GitOps? GitOps: versioned CI/CD on top of declarative infrastructure. - Kelsey Hightower -

9. What is GitOps? Set of practices to manage infrastructure and application deployment using Git as a single source of truth with declarative model

10. 1 GitOps Principles ➔ Describe the entire system declaratively ➔ The desired system state is versioned in Git ➔ Automatically apply approved changes to the system ➔ Ensure correctness and alert on divergence with software agents Source: https://www.weave.works

11. Declarative 1 Imperative

12. Set “annotation” Set “replicas” Set “image” nginx-deployment.yml

13. How GitOps Works? ➔ GitOps architecture enables developers to manage infrastructure operations using Git as the only source of truth. ➔ Gitops uses the operator as a deployment synchronizer that will always compare the desired state and the actual state.

14. DevOps CI/CD Pipeline

15. GitOps Workflow Actual State Desired State Operator Ensure Actual State == Desired state

16. Advantages of GitOps ➔ Faster Time to Market ➔ Improve Security ➔ More Reliable ➔ Improved Developer Experience ➔ Auditable ➔ Standardized Operations across the Infrastructure

17. GitOps Best Practices ➔ Split Repo: One For App Repository, Another For Environment/Config Repository ➔ Test the Manifests Before Commit ➔ Git Manifests Should Not Change Due To External Changes ➔ Plan How to Manage Secrets

18. GitOps Tools ➔ Flux CD - https://fluxcd.io ➔ Argo CD - https://argoproj.github.io/cd ➔ Jenkins X - https://jenkins-x.io

19. Demo ➔ Code Repository: Github ➔ CI Server: Jenkins ➔ Container Repository: Docker Hub ➔ GitOps Operator: Argo CD ➔ Configuration Manager for K8s: Kustomize ➔ Platfrorm Deployment: Kubernetes Vanilla

21. Thank you!

Next Level DevOps Implementation with GitOps

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