Continuous Deployment (CD)
Category:
Definition
Continuous deployment (CD) is the practice of automatically deploying every code change that passes automated tests and quality checks directly to production, without manual intervention.
Detailed Explanation
Continuous deployment is the final stage in a modern DevOps pipeline, following continuous integration (CI). The pipeline looks like this:
``` Developer commits code ↓ CI: Tests run automatically (unit, integration, e2e) ↓ If tests pass → CD: Deploy to production automatically ↓ Monitoring confirms healthy deployment ```
**Continuous delivery vs. continuous deployment:**
The terms are often confused. Continuous delivery means the code is *ready* to deploy at any time but may require a manual approval step. Continuous deployment takes it further by removing that manual gate — every green build ships automatically.
**Prerequisites for safe continuous deployment:** 1. High test coverage (unit + integration + smoke tests) 2. Automated health checks and canary monitoring 3. Fast rollback capability (sub-second on Kubeletto) 4. Feature flags for gradual rollouts 5. Observability to detect regressions post-deploy
**Benefits:** - Smaller, more frequent releases reduce risk per deploy - Bugs are discovered and fixed faster (fewer changes between deploys) - Developer productivity increases (no manual release ceremonies) - Time-to-market shrinks significantly
**Common tools in CD pipelines:** GitHub Actions, GitLab CI, CircleCI, Jenkins, ArgoCD (for Kubernetes), and managed platforms like Kubeletto that have CD built-in.
How Kubeletto provides Continuous Deployment (CD)
Kubeletto has CD built in at the platform level. Install the Kubeletto GitHub App, select your repository and deployment branch, and every push that reaches that branch triggers an automatic build and deploy. No GitHub Actions workflow required. Build logs stream in real-time, and failed builds prevent traffic cutover automatically.
Frequently Asked Questions
Is continuous deployment safe for production?
Yes, with the right safeguards: automated tests, health checks, rollback capability, and monitoring. Kubeletto provides health-check-gated traffic cutover and one-click rollback to any previous revision.
Can I deploy to a staging environment first with Kubeletto?
Yes. Deploy your staging branch to one Kubeletto app and your main branch to another. Both environments share the same workflow with isolated configurations.
How do I add tests before Kubeletto deploys?
Add a GitHub Actions workflow that runs your test suite on pull requests. Configure it to only merge to main when tests pass. Kubeletto deploys from main, so it naturally only receives verified commits.
See Continuous Deployment (CD) in action
Deploy your first app on Kubeletto — free during our active beta.