Container Security
Securing a Dockerized Rails Local Dev Environment
A misplaced master.key or a permissive COPY . . can bake Rails credentials into an image layer forever — here's how to Dockerize Rails dev safely.
Jul 12, 20266 min read
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Minimal container images with ko: evaluating distroless Go builds
ko builds Go containers straight from source onto a shell-less distroless base with no Dockerfile — cutting attack surface, and debugging tools, at once.
Jul 12, 20267 min read
Container Security
Container-handling security fundamentals: immutability, signing, and privilege drops
Two runc CVEs, five years apart, both turned root-in-container into root-on-host — proof that container isolation needs backup, not blind trust.
Jul 11, 20267 min read
Container Security
Container security: five best practices for provenance, runtime, and network
A single runc bug (CVE-2024-21626) enabled full container escapes in early 2024 — proof that provenance and network defaults matter as much as image scanning.
Jul 11, 20266 min read
Container Security
Hardening PHP-FPM and Apache Container Images
PHP containers ship with defaults built for compatibility, not security. Opcache settings, disabled functions, and process ownership close the gaps.
Jul 11, 20266 min read
Container Security
A Practical Container Security Checklist: From Base Image to Runtime
Standard Docker Hub images ship 50-60 known CVEs on average. Here's the checklist that gets containers from base image to runtime without carrying them along.
Jul 10, 20266 min read
Container Security
Docker secrets management without Kubernetes: BuildKit, Swarm, and env vars compared
BuildKit's --secret flag shipped in Docker 18.09 in 2018, yet ENV and --build-arg leaks into image layers remain the most common way containers ship credentials.
Jul 10, 20266 min read
Container Security
Building minimal, non-root Java containers with distroless and JVM hardening
A typical java:17 image ships a full OS and root shell; distroless plus JVM container-awareness flags cut that attack surface to almost nothing.
Jul 10, 20266 min read
Container Security
Multi-Stage Docker Builds: A Security Pattern, Not Just a Size Trick
Multi-stage builds are pitched as a way to shrink images. Their bigger payoff is security: build secrets, compilers, and toolchains that never reach production. Here is how to use them right.
Jul 8, 20265 min read
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