Minikube: Support running minikube on Raspbian (arm)

Created on 29 Feb 2020 · 3Comments · Source: kubernetes/minikube

For instance the Raspberry Pi 4 comes with enough memory (2G) to be able to run Minikube.

https://www.raspberrypi.org/products/raspberry-pi-4-model-b/

Currently it only runs directly on the host with the none driver which is not ideal, but "works".

Docker is available in the standard distribution, packaged in the Raspbian/Debian distribution.

For compatibility this is a 32-bit Linux distro which means we need to supply arm binaries.

https://www.raspberrypi.org/blog/buster-the-new-version-of-raspbian/

Example session:

pi@raspberrypi:~ $ sudo minikube start --vm-driver=none
😄  minikube v1.7.3 on Raspbian 10.3 (arm)
✨  Using the none driver based on user configuration
🤹  Running on localhost (CPUs=4, Memory=1887MB, Disk=29729MB) ...
ℹ️   OS release is Raspbian GNU/Linux 10 (buster)
🐳  Preparing Kubernetes v1.17.3 on Docker 18.09.1 ...
🚀  Launching Kubernetes ... 
🌟  Enabling addons: default-storageclass, storage-provisioner
🤹  Configuring local host environment ...

⚠️  The 'none' driver provides limited isolation and may reduce system security and reliability.
⚠️  For more information, see:
👉  https://minikube.sigs.k8s.io/docs/reference/drivers/none/

⚠️  kubectl and minikube configuration will be stored in /root
⚠️  To use kubectl or minikube commands as your own user, you may need to relocate them. For example, to overwrite your own settings, run:

    ▪ sudo mv /root/.kube /root/.minikube $HOME
    ▪ sudo chown -R $USER $HOME/.kube $HOME/.minikube

💡  This can also be done automatically by setting the env var CHANGE_MINIKUBE_NONE_USER=true
⌛  Waiting for cluster to come online ...
🏄  Done! kubectl is now configured to use "minikube"

If you are running a desktop environment on a 2G machine, you want to enable a swapfile.

pi@raspberrypi:~ $ free -m
              total        used        free      shared  buff/cache   available
Mem:           1887         552         208          44        1127        1260
Swap:          2047           1        2046
pi@raspberrypi:~ $ tail -5 /etc/dphys-swapfile
# restrict size (computed and absolute!) to maximally this limit
#   can be set to empty for no limit, but beware of filled partitions!
#   this is/was a (outdated?) 32bit kernel limit (in MBytes), do not overrun it
#   but is also sensible on 64bit to prevent filling /var or even / partition
CONF_MAXSWAP=2048

kinfeature

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