• How it works: Developers commit small, incremental changes to the repository.
Automated tests run with every commit, checking for bugs, code quality issues,
and functional correctness.
• Real-world analogy: Imagine building a complex puzzle with a team. If everyone
adds pieces without checking how they fit, the puzzle could collapse. CI ensures
every piece integrates perfectly.
• Popular tools: Jenkins, GitLab CI/CD, Travis CI, and CircleCI are widely used to
automate CI pipelines.
Organizations that implement robust CI practices typically see faster development
cycles, fewer production errors, and higher-quality software releases. (KodekX)
Continuous Delivery (CD)
Continuous Delivery (CD) takes CI a step further by automating the deployment
process, allowing software to be delivered reliably to production or staging
environments at any time. (KodekX)
• Why it matters: Manual deployments are slow, error-prone, and stressful. CD
ensures updates reach users faster, safely, and with minimal human
intervention.
• How it works: Once the CI pipeline verifies a code change, CD automates
packaging, testing in staging environments, and deployment to production.
Rollbacks are also automated, reducing risk.
• Real-world analogy: Think of CD as a conveyor belt in a factory. Once a product
passes quality checks, it moves automatically to shipping—no delays, no
human error.(KodekX)
• Benefits: Faster feature releases, reduced downtime, improved reliability, and
enhanced end-user satisfaction.(KodekX)
Popular CD tools include Spinnaker, Argo CD, and GitHub Actions, which allow teams
to implement fully automated delivery pipelines. (KodekX)
Infrastructure as Code (IaC)
Infrastructure as Code (IaC) is a revolutionary approach that treats infrastructure—
servers, networks, and configurations—as code. This allows organizations to automate
provisioning, manage infrastructure consistently, and scale environments rapidly.