Continental Innovates with Rancher and Kubernetes
As of v0.5.0, RancherOS releases include a Raspberry Pi image that can be found on our releases page. The official Raspberry Pi documentation contains instructions on how to install operating system images.
When installing, there is no ability to pass in a cloud-config. You will need to boot up, change the configuration and then reboot to apply those changes.
Currently, only Raspberry Pi 3 is tested and known to work.
Note: It is not necessary to run ros install after installing RancherOS to an SD card.
ros install
RancherOS does not currently expand the root partition to fill the remainder of the SD card automatically. Instead, the following workaround can be used to store Docker containers on a larger partition that fills the remainder.
sudo fdisk /dev/mmcblk0
n
[Enter]
w
sudo reboot
sudo mkdir /mnt/docker
sudo ros config set rancher.docker.extra_args [-g,/mnt/docker]
sudo mkfs.ext4 /dev/mmcblk0p3
sudo ros config set mounts "[['/dev/mmcblk0p3','/mnt/docker','ext4','']]"
sudo mount /dev/mmcblk0p3 /mnt/docker
sudo system-docker restart docker
/var/lib/docker
/mnt/docker
sudo cp -R /var/lib/docker/* /mnt/docker
Available as of v1.5.2
Here are steps about how to enable Wi-Fi on a Raspberry Pi:
modprobe brcmfmac wpa_passphrase <ssid> <psk> > /etc/wpa_supplicant.conf wpa_supplicant -iwlan0 -B -c /etc/wpa_supplicant.conf # wait a few seconds, then dhcpcd -MA4 wlan0
You can also use cloud-config to enable Wi-Fi:
#cloud-config rancher: network: interfaces: wlan0: wifi_network: network1 wifi_networks: network1: ssid: "Your wifi ssid" psk: "Your wifi password" scan_ssid: 1
Raspberry Pi will automatically drop Wi-Fi connection after a while, this is due to power management. To fix this problem, you can try this:
iwconfig wlan0 power off