itamae-recipes-k8s

About this repository

CloudGarage の無償インスタンスを利用して kubernetes クラスタを構築してみる(in japanese)

Usage

0. Prepare

This repository use itamae.

$ bundle install

And, edit ~/.ssh/config on your PC to enable to access each instance easily.

1. Create working user

$ cp base/user_template.json base/my.json
<edit my.json>
$ bundle exec itamae ssh -h master01 -j base/my.json -u root base/user.rb
$ bundle exec itamae ssh -h node01  -j base/my.json -u root base/user.rb
$ bundle exec itamae ssh -h node02  -j base/my.json -u root base/user.rb

2. Edit /etc/hosts

$ bundle exec itamae ssh -h master01  -j base/my_hosts.json -u root base/hosts.rb
$ bundle exec itamae ssh -h node01  -j base/my_hosts.json -u root base/hosts.rb
$ bundle exec itamae ssh -h node02  -j base/my_hosts.json -u root base/hosts.rb

3. Setup for master-node

$ bundle exec itamae ssh -h master01 -j master/config.json master/etcd.rb
$ bundle exec itamae ssh -h master01 master/flanneld.rb
<Create secret key for serviceaccount.key, and save at files/ .>
$ bundle exec itamae ssh -h master01 -j master/config.json master/kubernetes.rb
$ bundle exec itamae ssh -h master01 -j master/config.json master/kubectl_config.rb

To create secret key, do $ openssl genrsa -out /path/to/serviceaccount.key 2048 .

4. Setup for container-running node

$ bundle exec itamae ssh -h node01 -j node/node_config.json node/flanneld.rb
$ bundle exec itamae ssh -h node02 -j node/node_config.json node/flanneld.rb
$ bundle exec itamae ssh -h node01 -j node/node_config.json node/kubernetes.rb
$ bundle exec itamae ssh -h node02 -j node/node_config.json node/kubernetes.rb

5. Check

$ kubectl get nodes
NAME      STATUS    AGE
node01    Ready     3m
node02    Ready     9s

That's all!