Docker for Mac Memory Leak

08 Sep 2018 in Sysadmin / Devtools / Docker

It seems that the default settings in Docker for Mac do not enforce any log rotation for services running on the integrated Kubernetes. This led to a seeming memory leak that would eventually crash my computer for long-running services. While this is somewhat understandable, given that Docker for Mac is clearly targeted for development, it still seems like an unfortunate default.

You can enforce a max size for logs by editing $HOME/.docker/daemon.json to include:

{
  "log-opts": {
    "max-size": "10m"
  }
}