Tag: Docker

I recently came across an exceptionally dense technical analysis about container security that’s worth sharing. The author started with a simple hypothesis: container filesystem isolation should be sufficient for multi-tenant workloads without virtual machines, if you sufficiently understand what’s happening at the syscall level.

After thorough investigation, the conclusion is more uncomfortable than expected: the defaults protect you well, but the moment you reach for “advanced” features like bidirectional mount propagation or SELinux relabeling, you’re one misconfiguration away from handing an attacker the keys to your host.

A few days ago, working with Claude Code, I came across a tool that’s been around in the Docker ecosystem for a while but that I didn’t know about: docker pushrm. And the truth is it surprised me how useful it is for something as simple as keeping your container repository documentation synchronized.

The problem it solves

Anyone who has worked with Docker Hub, Quay, or Harbor knows the typical flow: you update your project’s README on GitHub, build and push your image, but… the container registry’s README is still outdated. You have to manually go to the browser, copy and paste the content, and do the update manually.

In these last few days, we’ve had many news items, articles, information in the development and technology world, these are the most relevant for me:

• Google announces a new Machine Learning service in the cloud

• NPM & left-pad: Have We Forgotten How To Program?: The Kik case - left-pad from NPM and the critical fall to “I’ll do this with a third-party module/plugin/package/class”

• The Kik case - left-pad from NPM and the fall in (official) or how the most insignificant dependencies can really leave us stranded.