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Devops and git basics

Sourabh Saxena
Sourabh Saxena

This document provides an overview of DevOps, Git basics, and their relationship. It discusses how DevOps aims to improve collaboration between development and operations teams through practices like continuous integration, continuous delivery, and infrastructure automation. It also introduces some key DevOps terminology. Additionally, it covers the basics of using Git for version control, including tracking files, staging changes, committing, ignoring files, and pushing/pulling from remote repositories.

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DevOps and Git Basics Sourabh Saxena
DevOps DevOps is a Organizational cultural shift Operations traditionally seeks STABILITY Developers traditionally seeks CHANGE Testers traditionally seeks REDUCE RISKS How to accomplish DevOps ? Strong interdepartmental communication Team Building
Why DevOps ? Inefficiencies existed in both development and operations Operations used inefficient tools . Developers didn't control the infrastructure . What was needed ? Operations needed to leverage more efficient developer tools . Developers needed to manage their own infrastructure .
Terminology Term Description Continuous Integration A method of finding software issues early within the development cycle and ensuring that all the parts of the overall platform are integrated to each other correctly . Continuous Delivery A method of delivering fully working and tested software in small incremental chunks to the production platform . DevOps A way of working that encourages Development and Operations teams to work together in a highly collaborative way towards Continuous Delivery. Definition of Done A change to the platform (software, hardware , infrastructure and so on) is live and used by customers . Release (candidate ) A single code drop to a given environment (testing , staging ,production and so on)
Continuous Integration ,Continuous Delivery and DevOps Continuous Integration (CI) : Key component of modern develop ment practices Continuous Delivery (CD) provides tools and best practices to deliver quality software quickly
DevOps Framework : Extend Continuous Delivery Deployment Continuous Integration Source control Dev Environment Configuration Mgmt Monitoring Issue Tracking Collaboration Pattern Dev Ops Collaboration Teams work together, regardless of location Source Control Store Project code and access in controlled way Ensure that configuration data is with project code Dev Environment Access development ,reduce setup time and inconsistencies Issue Tracking Raise responsiveness and visibility Continuous Integration Instant feedback by merging code regularly Deployment Build projects and update systems regularly with new builds Build target environments with respective configuration data Planning Build transparency to stakeholders always (culture tenet) Configuration Mgmt Enforce desired state and consistency at scale Monitoring Shared responsibility for relevant parts of application/environment health Planning
DevOps Life Cycle Continuous Rather than ending when the code is live , the cycle continues by monitoring the current release and working toward the next . START BUILD TEST RELEASE DEPLOYOPERATEMONITOR PLAN CODE
Configuration Management Scripts Install.sh Setup.sh Etc. .. Test Changes Unit test Integration test Pre-production Environment production Documentation Changes Release notes Modify wiki Version control (git) Images Golden Images Snapshots Provisioning Access credentials Deployments Golden Images Snapshots Provisioning Access credentials Continuous Integration and Delivery Pipeline Push Feature Branch to Git Linting ,Unit Testing , Integration testing Pass / Approve Changes Merge to Master , Distribute Changes Update Environments ,Push to Production
What is Git ? A Distributed version control system Characteristics : Speed Simple Design Fully Distributed Can handle large projects efficiently Supports non-linear development Requires local file and resources only
Section of a Git Project There are three main sections of Git Project : Git Directory Working Directory Staging Area
State of files in Git Files is Git can be in any of the following states Committed Staged Modified
Basic Git Operations Initialize a new repository in an existing project or Directory or clone an existing repository from another server Start and stop file tracking Stage and commit changes Set up Git to ignore certain files and file patterns Undo mistakes Browse history of your project View changes between commit Push and Pull from remote repositories
Git Workflow Create or modify files Add files to commit Commit Pull from Remote Push to Remote Ignore files using .gitignore Check Status Check Status
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Devops and git basics

  • 1. DevOps and Git Basics Sourabh Saxena
  • 2. DevOps DevOps is a Organizational cultural shift Operations traditionally seeks STABILITY Developers traditionally seeks CHANGE Testers traditionally seeks REDUCE RISKS How to accomplish DevOps ? Strong interdepartmental communication Team Building
  • 3. Why DevOps ? Inefficiencies existed in both development and operations Operations used inefficient tools . Developers didn't control the infrastructure . What was needed ? Operations needed to leverage more efficient developer tools . Developers needed to manage their own infrastructure .
  • 4. Terminology Term Description Continuous Integration A method of finding software issues early within the development cycle and ensuring that all the parts of the overall platform are integrated to each other correctly . Continuous Delivery A method of delivering fully working and tested software in small incremental chunks to the production platform . DevOps A way of working that encourages Development and Operations teams to work together in a highly collaborative way towards Continuous Delivery. Definition of Done A change to the platform (software, hardware , infrastructure and so on) is live and used by customers . Release (candidate ) A single code drop to a given environment (testing , staging ,production and so on)
  • 5. Continuous Integration ,Continuous Delivery and DevOps Continuous Integration (CI) : Key component of modern develop ment practices Continuous Delivery (CD) provides tools and best practices to deliver quality software quickly
  • 6. DevOps Framework : Extend Continuous Delivery Deployment Continuous Integration Source control Dev Environment Configuration Mgmt Monitoring Issue Tracking Collaboration Pattern Dev Ops Collaboration Teams work together, regardless of location Source Control Store Project code and access in controlled way Ensure that configuration data is with project code Dev Environment Access development ,reduce setup time and inconsistencies Issue Tracking Raise responsiveness and visibility Continuous Integration Instant feedback by merging code regularly Deployment Build projects and update systems regularly with new builds Build target environments with respective configuration data Planning Build transparency to stakeholders always (culture tenet) Configuration Mgmt Enforce desired state and consistency at scale Monitoring Shared responsibility for relevant parts of application/environment health Planning
  • 7. DevOps Life Cycle Continuous Rather than ending when the code is live , the cycle continues by monitoring the current release and working toward the next . START BUILD TEST RELEASE DEPLOYOPERATEMONITOR PLAN CODE
  • 8. Configuration Management Scripts Install.sh Setup.sh Etc. .. Test Changes Unit test Integration test Pre-production Environment production Documentation Changes Release notes Modify wiki Version control (git) Images Golden Images Snapshots Provisioning Access credentials Deployments Golden Images Snapshots Provisioning Access credentials Continuous Integration and Delivery Pipeline Push Feature Branch to Git Linting ,Unit Testing , Integration testing Pass / Approve Changes Merge to Master , Distribute Changes Update Environments ,Push to Production
  • 9. What is Git ? A Distributed version control system Characteristics : Speed Simple Design Fully Distributed Can handle large projects efficiently Supports non-linear development Requires local file and resources only
  • 10. Section of a Git Project There are three main sections of Git Project : Git Directory Working Directory Staging Area
  • 11. State of files in Git Files is Git can be in any of the following states Committed Staged Modified
  • 12. Basic Git Operations Initialize a new repository in an existing project or Directory or clone an existing repository from another server Start and stop file tracking Stage and commit changes Set up Git to ignore certain files and file patterns Undo mistakes Browse history of your project View changes between commit Push and Pull from remote repositories
  • 13. Git Workflow Create or modify files Add files to commit Commit Pull from Remote Push to Remote Ignore files using .gitignore Check Status Check Status