Alpine makes a great docker container

Alpine is so small and optimized to be run in RAM. It also might make a good controller for several docker containers.

Alpine Linux is a Linux distribution based on musl and BusyBox, designed for security, simplicity, and resource efficiency. It uses a hardened kernel and compiles all user-space binaries as position-independent executables with stack-smashing protection.

Because of its small size, it is heavily used in containers providing quick boot-up times.