
· Asep Alazhari · DevOps
Kubernetes Docker Swarm Safe Installation: Zero Downtime Migration
Learn how to install Kubernetes alongside a live Docker Swarm environment. This guide ensures zero downtime for production services during migration.

Learn how to install Kubernetes alongside a live Docker Swarm environment. This guide ensures zero downtime for production services during migration.
![GitLab CI/CD Dynamic Variables per Environment [2026]](https://cdn.asepalazhari.com/images/articles/deployment/gitlab-ci-cd-dynamic-variables-across-environments.png)
Stop duplicating CI configs. Use GitLab CI/CD variables with environment scope to switch API URLs, secrets, and feature flags across dev, staging, and prod.

Automate Docker image tagging in GitLab CI/CD using pipeline IDs for traceable versions. Copy the .gitlab-ci.yml examples and ship cleaner, safer releases.