This guide has moved to a GitHub repository to enable collaboration and community input via pull-requests.
https://github.com/alexellis/k8s-on-raspbian
Alex
This guide has moved to a GitHub repository to enable collaboration and community input via pull-requests.
https://github.com/alexellis/k8s-on-raspbian
Alex
#!/bin/sh | |
# This installs the base instructions up to the point of joining / creating a cluster | |
curl -sSL get.docker.com | sh && \ | |
sudo usermod pi -aG docker | |
sudo dphys-swapfile swapoff && \ | |
sudo dphys-swapfile uninstall && \ | |
sudo update-rc.d dphys-swapfile remove | |
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add - && \ | |
echo "deb http://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list && \ | |
sudo apt-get update -q && \ | |
sudo apt-get install -qy kubeadm | |
echo Adding " cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory" to /boot/cmdline.txt | |
sudo cp /boot/cmdline.txt /boot/cmdline_backup.txt | |
orig="$(head -n1 /boot/cmdline.txt) cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory" | |
echo $orig | sudo tee /boot/cmdline.txt | |
echo Please reboot |
I tried to setup the cluster following the steps described but still didn't get a succesful kubeadm init. I tried different versions of k8s and docker. Is there somebody who has the steps to get 1.13-3 working with 18.09.0
@janpieper can you share the script?
@janpieper steps worked up until the point everyone mentioned, and rather than the script that polls and zaps the config, I found you can do the same (after the initial failure) by running these commands (lifted from this issue kubernetes/kubeadm#1380)
sudo kubeadm reset
sudo kubeadm init phase certs all
sudo kubeadm init phase kubeconfig all
sudo kubeadm init phase control-plane all --pod-network-cidr 10.244.0.0/16
sudo sed -i 's/initialDelaySeconds: [0-9][0-9]/initialDelaySeconds: 240/g' /etc/kubernetes/manifests/kube-apiserver.yaml
sudo sed -i 's/failureThreshold: [0-9]/failureThreshold: 18/g' /etc/kubernetes/manifests/kube-apiserver.yaml
sudo sed -i 's/timeoutSeconds: [0-9][0-9]/timeoutSeconds: 20/g' /etc/kubernetes/manifests/kube-apiserver.yaml
sudo kubeadm init --v=1 --skip-phases=certs,kubeconfig,control-plane --ignore-preflight-errors=all --pod-network-cidr 10.244.0.0/16
Then I installed flannel.
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.11.0/Documentation/kube-flannel.yml
Something that threw me off was the shell demo that Kubernetes provides works fine (kubectl apply -f https://k8s.io/examples/application/shell-demo.yaml) docs here:
https://kubernetes.io/docs/tasks/debug-application-cluster/get-shell-running-container/
But it fails when doing a deployment of nginx from their example here:
https://kubernetes.io/docs/tasks/run-application/run-stateless-application-deployment/
Turns out the nginx image isn't compatible with ARM, once I changed the image to a pi supported image (tobi312/rpi-nginx
) it worked fine! Thanks to everyone here, I finally got my pi cluster going.
@janpieper. I’ve run into the “node not found”. looking through all the comments I was going to follow the save steps you did. I wonder what versions of k8s and docker you’ve installed