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Containers

Docker Compose: Rebuilding Images Correctly (and Catching Stale Layers)

Why docker compose up sometimes runs old code, and how to rebuild images so what runs matches what you edited, including cache, stale layers, and orphaned images.

May 4, 20266 min read
Containers

Writing a Secure Kubernetes Dockerfile: A Practical Hardening Guide

The Dockerfile you write decides most of a pod's attack surface before Kubernetes ever schedules it. Here is how to build images that run non-root, stay small, and survive a security review.

May 2, 20265 min read
Containers

Kubernetes CVE News: How to Track and Respond to Cluster Vulnerabilities

Where Kubernetes CVE news actually breaks, how to read a cluster advisory, and a repeatable process for triaging vulnerabilities before they turn into an incident.

May 2, 20266 min read
Containers

Docker Hub Node.js Images: How to Pick and Harden the Right Tag

The official Docker Hub Node.js images come in a dozen variants, and the tag you choose decides your image size, patch cadence, and attack surface. Here is how to read them.

May 1, 20265 min read
Containers

How Does a Kubernetes Security Breach Happen and How Do You Prevent One?

Most Kubernetes security breaches trace back to exposed dashboards, leaked credentials, and over-permissive RBAC. Here is how the real attacks unfolded and what stops them.

May 1, 20266 min read
Containers

Node Docker Images: Picking the Right Base for Production

The node docker image you pick as a base determines most of your container's attack surface and size. Here's how to choose between full, slim, and alpine variants for production.

Apr 30, 20265 min read
Containers

What a Cloud Native Security Platform Actually Does

A cloud native security platform unifies posture, workload, and supply chain controls for containerized apps. Here is what the category covers and how to tell the marketing from the substance.

Apr 29, 20266 min read
Containers

Python Dockerfile Best Practices for Secure, Small Images

The Python Dockerfile best practices that matter most for security are running as a non-root user, choosing a slim base, using multi-stage builds, and pinning dependencies. Here is a working reference Dockerfile and why each line is there.

Apr 28, 20265 min read
Containers

Python Docker Images: How to Choose a Secure, Slim Base

Choosing among Python Docker images comes down to trade-offs between size, glibc compatibility, and attack surface. Here is how the official tags differ and how to build a lean, low-CVE image.

Apr 27, 20265 min read
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