dockerkubernetesminikubeosx-elcapitanmacports

minkube start..gives error: "Exiting due to RSRC_INSUFFICIENT_CORES"..Is it possible to start minikube on this Mac with 2 CPU cores?


I want to start minikube to learn Kubernetes but am having trouble because of error RSRC_INSUFFICIENT_CORES. My mac has 2 CPU cores and minikube docs say that 2 cores are required. Here a the machine specs from "About this Mac":

This machine has VirtualBox Version 5.2.35 r135669 but its not running, and working docker and docker-machine, as shown here:

✗ docker-machine --version
docker-machine version 0.16.1, build 

✗ docker --version
Docker version 17.05.0-ce, build 89658be

I have successfully installed minikube v1.25.1 using an updated version of MacPorts, as shown here:

✗ which minikube    
/opt/local/bin/minikube

✗ minikube version

minikube version: v1.25.1

I cannot start minikube and get error: Exiting due to RSRC_INSUFFICIENT_CORES. Here is the output that I see from 2 different minikube start attempts:

✗ minikube start --cpus=2

😄   minikube v1.25.1 on Darwin 10.11.6
✨   Automatically selected the docker driver. Other choices: virtualbox, ssh
- Ensure your docker daemon has access to enough CPU/memory resources.
- Docs https://docs.docker.com/docker-for-mac/#resources

⛔   Exiting due to RSRC_INSUFFICIENT_CORES: Requested cpu count 2 is greater than the available cpus of 1

✗ minikube start --cpus=1

😄   minikube v1.25.1 on Darwin 10.11.6
✨   Automatically selected the docker driver. Other choices: virtualbox, ssh

⛔   Exiting due to RSRC_INSUFFICIENT_CORES: Requested cpu count 1 is less than the minimum allowed of 2

Please excuse newbie-ness--this is my first ever SO question!

Is it impossible to start minikube on this Mac?


Solution

  • To enforce operation on a single core, you can use the following options

    --extra-config=kubeadm.ignore-preflight-errors=NumCPU --force --cpus=1

    Please note that docker and minikube were designed to run on at least two cores. If available, please consider enabling hyperthreading.