A developer building a custom container runtime shares key insights about Docker's internals, revealing that containers are merely restricted processes using Linux namespaces, cgroups, and networking features rather than a dedicated kernel feature. The post also highlights why Go is a poor choice for container runtime development due to its multi-threaded runtime and lack of native fork support.
Background
The article discusses the internal architecture of Docker containers, explaining how they are implemented using Linux kernel features like namespaces and cgroups rather than being a standalone technology.
- Source
- Lobsters
- Published
- Oct 23, 2026 at 04:09 AM
- Score
- 5.0 / 10