Best of Spacelift — July 2025

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   Article

   Spacelift·45w

   10 Most Popular GitHub Actions Alternatives for CI/CD

   Compares 10 popular CI/CD alternatives to GitHub Actions, including Spacelift, Jenkins, CircleCI, GitLab CI/CD, Azure DevOps, and others. Each tool offers unique advantages like cost efficiency, customization, scalability, or compliance features. The comparison covers key features, licensing, and use cases to help teams choose the right CI/CD solution based on their specific requirements, infrastructure preferences, and ecosystem integration needs.

   105

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2. 2
   Article

   Spacelift·44w

   Blue/Green Deployments With Terraform & Kubernetes

   Blue/green deployments enable zero-downtime application updates by maintaining two identical environments - one serving production traffic (blue) and another for testing new versions (green). This comprehensive guide demonstrates implementing blue/green deployments in Kubernetes using Terraform, covering the complete workflow from initial deployment through traffic switching and rollback procedures. The tutorial includes practical examples with a Flask application, Docker containerization, and Kubernetes resource management, plus best practices for automation, testing, and handling stateful applications with database considerations.

   33
3. 3
   Article

   Spacelift·46w

   GitHub Actions Workflows: How to Create and Manage

   GitHub Actions workflows are YAML-based CI/CD pipelines that automate software building, testing, and deployment processes. Workflows consist of jobs that run in parallel by default, with each job containing sequential steps. They're triggered by repository events like pushes, pull requests, or schedules. Key features include matrix builds for testing across multiple environments, job dependencies using the 'needs' keyword, environment variables, and concurrency controls. The platform supports reusable actions from the GitHub Marketplace and allows integration with external tools through custom actions.

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   Article

   Spacelift·44w

   Top 15 Kubernetes Security Tools and Solutions for 2025

   A comprehensive guide covering 15 essential Kubernetes security tools for 2025, including static analysis tools like Kubescape and Checkov, runtime security solutions like Falco, and policy engines like OPA and Kyverno. The article categorizes tools based on the 4C security model (cloud, cluster, containers, code) and covers both open-source and commercial solutions for vulnerability scanning, compliance checking, network security, and threat detection in Kubernetes environments.

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