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Containers

Kubernetes SecurityContext: The Settings That Matter

A pod's securityContext decides whether a compromised container is contained or a launchpad. Here are the fields that actually reduce blast radius — and the copy-paste block that sets a hardened baseline.

Oct 21, 20256 min read
Containers

Docker Meaning: What Docker Is and Why It Matters for Security

Docker packages an application and everything it needs into a portable container that runs the same everywhere. Understanding that model is the first step to securing it.

Oct 16, 20256 min read
Containers

Docker Ubuntu Image: How to Use It Securely and Keep It Slim

The Docker Ubuntu image is a fine base, but a naive Dockerfile ships a bloated, vulnerable container. Here is how to pin, slim, and scan it properly.

Oct 15, 20255 min read
Containers

Kubernetes Security Tools: What to Use and Why

A Kubernetes security tool covers one slice of cluster risk — image scanning, admission control, runtime detection, or posture. Here is how to combine them.

Oct 15, 20255 min read
Containers

How to Scan a Docker Image with Snyk (and What It Misses)

A practical guide to scanning a Snyk Docker image for vulnerabilities: the CLI workflow, base-image advice, free-tier limits, and where container scanning needs a second look.

Oct 15, 20256 min read
Containers

How to Write a Kubernetes Security Policy That Holds Up

A Kubernetes security policy is the set of enforced rules that decide what workloads may run and how. This guide covers Pod Security Standards, admission control, and turning intent into rules the cluster actually enforces.

Oct 2, 20255 min read
Containers

Running Node.js on Ubuntu in Docker, Securely

A guide to the Node Ubuntu Docker pattern: when an Ubuntu base makes sense for Node.js, how to build it safely, and the security trade-offs versus slim images.

Oct 2, 20256 min read
Containers

k8s Pod Security Policy: Why It Was Removed and What Replaced It

The k8s Pod Security Policy was deprecated in 1.21 and removed in 1.25. Here is why it went away and how to migrate to Pod Security Admission and Standards.

Oct 2, 20255 min read
Containers

Docker Architecture Explained: A Security-Focused Breakdown

Docker architecture is a client-server system built on the daemon, containerd, images, and the kernel features that isolate containers. Here is how the pieces fit and where the security lines are.

Sep 29, 20256 min read
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