Sign Container Images with Cosign in GitHub Actions
Learn how to sign container images with Cosign in GitHub Actions using keyless OIDC identity, then verify the signature before a Kubernetes deployment can proceed.
7 min read
Writer
Ilyas Rufai
Ilyas is a Technical Content Writer and DevSecOps Specialist with deep experience in cloud-native security, pipeline integration, and developer experience. He creates hands-on technical content and documentation by building, securing, and validating real-world systems end-to-end, ensuring every guide is robust and secure by design. His work focuses on bridging the gap between security operations and developer workflows, turning complex infrastructure concepts into clear, practical guides that engineering teams can trust.
Articles by Ilyas Rufai
Terraform Security Scanning in GitHub Actions
Add Terraform security scanning to GitHub Actions with Trivy, fail pull requests on high-risk misconfigurations, and keep approved infrastructure changes reviewable.
7 min read
How to Fix the "CrashLoopBackOff" Error in Kubernetes
Learn how to diagnose CrashLoopBackOff with kubectl describe and logs --previous, then fix app crashes, OOMKills, and failing liveness probes.
10 min read
Kubernetes ConfigMap vs Secret Explained
Learn when to use a Kubernetes ConfigMap vs Secret, why base64 is not encryption, and how to inject each into pods safely with env vars or volumes.
10 min read
How to Fix the "ImagePullBackOff" Error in Kubernetes
Learn how to diagnose ImagePullBackOff with kubectl describe, fix wrong image tags and private registry auth, and verify pods reach Running state.
8 min read
15 Docker Commands Every Developer Should Know (With Examples)
Learn how to run, debug, build, and clean up Docker workloads with the 15 CLI commands developers reach for most, grouped by workflow with copy-paste examples.
9 min read
Terraform vs Ansible: When to Use Which
Learn how to choose between Terraform and Ansible for cloud provisioning, server configuration, and Day 2 operations using a production decision framework and handoff pattern.
13 min read
How to Eliminate Long-Lived Cloud Keys in CI/CD Using OIDC
Learn how to replace static AWS access keys in GitHub Actions with short-lived OIDC credentials, configure strict IAM trust policies, and secure multi-environment deployment pipelines.
11 min read