Linux
Docker Volumes vs Bind Mounts, and the File Ownership Trap
Why a volume shows the image's files and a bind mount hides them, and how a root container leaves files your own user cannot edit or delete. Four tested fixes.
Topic
docker
Linux
Docker Multi-Stage Builds: Smaller Images, Same Result
The same 147 kB binary in a 257 MB image or an 8.44 MB one. Multi-stage builds, named stages, a --target debug image, and why build secrets still leak.
Linux
Dockerfile Layer Caching: Order Instructions for Fast Rebuilds
A one-line code change should not reinstall every dependency. Timed rebuilds show how instruction order, .dockerignore and ARG placement decide what Docker reuses.