ShieldOps Blog

Discover the latest practices and guides for Docker, Kubernetes, and DevSecOps.

Dockerfile Linting Automation: Hadolint Rules Every Team Should Usetips

Dockerfile Linting Automation: Hadolint Rules Every Team Should Use

Automate Dockerfile linting with Hadolint: the 10 rules every team should enforce (version pinning, non-root, COPY over ADD, exec-form CMD), how to wire the gate into CI/CD, and how linting maps to CIS, PCI DSS, and NIST compliance.

2026-07-31Read More ⟶
Shell Command Security: 10 Dangerous Patterns in Dockerfiles and How to Fix Themtips

Shell Command Security: 10 Dangerous Patterns in Dockerfiles and How to Fix Them

Shell commands are the most executed code in any Docker build yet the least audited. Learn 10 dangerous shell patterns — from curl|bash to injected secrets — and how to fix each one with secure alternatives.

2026-07-13Read More ⟶
Multi-Stage Docker Builds: Security and Size Optimization Guidedocker

Multi-Stage Docker Builds: Security and Size Optimization Guide

Multi-stage Docker builds are the single most effective technique for reducing container image size and eliminating unnecessary attack surface. This guide walks through every stage, from basic implementation to advanced security patterns.

2026-06-06Read More ⟶
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