Warning: those playbooks works on my TEST cluster!

Use them at your own risk.

My kubernetes related ansible playbooks

build.yml

This playbook assumes you have latest rke installed

$ rke --version
rke version v1.3.12
$ rke config --list-version --all
v1.19.16-rancher1-6
v1.20.15-rancher1-4
v1.21.13-rancher1-1
v1.23.7-rancher1-1
v1.22.10-rancher1-1
v1.18.20-rancher1-3

Use the version of Kubernetes that suits you under var:

Make this playbook executable chmod +x build.yml and run it: ./build.yml

This playbook will build kubernetes cluster, installs cert-manager and Rancher. Config file is generated from jinja2 (conf_template.j2) template.

Define your variables in build.yml file, add more master and/or worker nodes. If you need to add new nodes after first run, add nodes under vars: and run build.yml playbook again.

Define your cluster name and hostname. Hostname can't be IP address.

To use kubectl copy kube_config_<YOUR_HOSTNAME>.yml to ~/.kube/config

$ cp kube_config_hostname.com.yml ~/.kube/config 
$ kubectl get nodes
NAME             STATUS   ROLES               AGE   VERSION
192.168.122.14   Ready    controlplane,etcd   14m   v1.23.7
192.168.122.15   Ready    worker              14m   v1.23.7

kube_drain.yml

Drains kubernetes nodes, which are described in hosts file. workers first, then etcd-cp nodes in serial, one by one. Upgrades node, restarts if needed and makes it schedulable again.

kube_upgrade.yml

Downloads latest RKE version, gets latest available kubernetes version and upgrades nodes with: rke up --config cluster.yml

Copy your *.rkestate to cluster.rkestate

cluster.yml

my testcluster setup.

hosts

Contains my hosts list.