ZSI / Continuous Delivery & DevOps Culture

Automation is not just for laziness

Local Development Automation

• Development environment setup
• Dependencies installation
• Building
• Checking and linting
• Testing

Automation Brings Us

• Shared knowledge
• Avoiding errors
• Faster feedback
• Confidence

We are not alone

Team-level Automation

• Integration into version control
• Automatic build and testing on every push
• Less fear
• Enables a new ways of collaboration

Integration of Developers Work

• Integration is painful
• Let's do it more often!

Continuous Integration

• Everyone pushes commits to the mainline every day
• No long-lasting branches
• Smaller changes are easier to integrate
• Automation reduces risks
• Enables transparency

CI Services

• Servis for running actions on repository
• Build, test, deploy
• Pipeline
• Examples: Jenkins, JetBrains TeamCity, GitHub Actions, GitLab CI

Example

Change in attitude

• Healthy mainline branch
• Small incremental changes
• Enables refactoring

Not for Everyone

• CI is perfect for committed and skillful team
• Alternative: feature branches and pull/merge reviews
  • origin: open-source projects – external contributors
  • pre-integration reviews
• CI Services can be used even without CI

CI and Code Reviews

• Pair programming
• Ship / Show / Ask
  • post-integration review

Not only development

Automate Deployment

• Deployment
• Infrastructure
  • Infrastructure as code
• Management & Maintenance

Development + Operations

DevOps

DevOps Culture

• Increased collaboration between the development and operations
• Shared responsibility
• Feedback
• Automation is required

DevOps is not a role!

Next step

Continuous Delivery

• Project is always ready to release
• Confidence
• Continuous Quality

Continuous Deployment

• Frequent automatic deployment
• User feedback
• Reduced deployment risk

Use Version Control to Drive Builds, Tests, and Releases

Use commits or pushes to trigger builds, tests, releases. Use a version control tag to deploy to production.

— The Pragmatic Programmer