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kubernetes-setup

README.md

Introduction

This playbook helps to setup a Kubernetes cluster on Fedora 32

Pre-req

  • Ansible installed
  • Ensure cgroupv2 is disabled. Fedora should be booted with systemd.unified_cgroup_hierarchy=0
$ sudo dnf install -y grubby && \
  sudo grubby \
  --update-kernel=ALL \
  --args="systemd.unified_cgroup_hierarchy=0"
$ sudo reboot

If cgroupsv1 is enabled, it should look this:

$ ls /sys/fs/cgroup/
blkio  cpu  cpuacct  cpu,cpuacct  cpuset  devices  freezer  hugetlb  memory  net_cls  net_cls,net_prio  net_prio  perf_event  pids  systemd  unified

Running

If passwordless SSH is not configured then add --ask-pass --ask-become-pass to the ansible-playbook comand line

To setup a master node:

ansible-playbook -i inventory main.yaml

To setup a worker node:

ansible-playbook -i inventory main.yaml --skip-tags "kubeadm_init"

To setup a single node cluster for kata developement:

sed -i -e 's/TaintedNode: no/TaintedNode: yes/' \
       -e 's/SetupKataContainers: no/SetupKataContainers: yes/' \
       main.yaml
ansible-playbook -i inventory main.yaml