k8slightsail

Description

This tool is used for provisioning kubernetes (k8s) cluster base on lightsail service of AWS.

It's just using for lab k8s. Provision when you need, delete it when you dont need to save money.

Number of master (depend on your choice)
Number of worker (depend on your choice)
Loadbalancing: 1

Some tools are preinstalled:

Master: (systemd is preconfigured)
- kubeadm
- containerd
- curl
- kubectl
- kubelet
- nfs-common
- open-iscsi
Worker: (systemd is preconfigured)
- kubeadm
- containerd
- curl
- kubelet
- nfs-common
- open-iscsi
Loadbalancing:
- curl
- haproxy

Tested

Ubuntu 20.04 LTS

Install golang compiler

https://golang.org/

Install this app

go install

Run

Init cluster

k8s_lightsail up

config.yml file is going to be created automatically like

region: ap-northeast-1
nodes:
- name: k8s-master-8674665223082153552
  type: master
  zone: ap-northeast-1a
  username: ubuntu
  public_ip: 18.183.224.164
  private_ip: 172.26.11.256
- name: k8s-master-6129484611666145822
  type: master
  zone: ap-northeast-1c
  username: ubuntu
  public_ip: 175.41.232.63
  private_ip: 172.26.16.44
- name: k8s-master-4037200794235010052
  type: master
  zone: ap-northeast-1d
  username: ubuntu
  public_ip: 13.230.39.207
  private_ip: 172.26.43.48
- name: k8s-loadbalancing-3916589616287113938
  type: loadbalancing
  zone: ap-northeast-1a
  username: ubuntu
  public_ip: 13.115.118.175
  private_ip: 172.26.15.164
- name: k8s-worker-6334824724549167321
  type: worker
  zone: ap-northeast-1c
  username: ubuntu
  public_ip: 54.249.173.204
  private_ip: 172.26.20.230
- name: k8s-worker-605394647632969759
  type: worker
  zone: ap-northeast-1d
  username: ubuntu
  public_ip: 52.195.19.202
  private_ip: 172.26.33.174
- name: k8s-worker-1443635317331776149
  type: worker
  zone: ap-northeast-1a
  username: ubuntu
  public_ip: 54.238.182.222
  private_ip: 172.26.7.185
- name: k8s-worker-894385949183117217
  type: worker
  zone: ap-northeast-1c
  username: ubuntu
  public_ip: 18.183.47.62
  private_ip: 172.26.29.169
- name: k8s-worker-2775422040480279450
  type: worker
  zone: ap-northeast-1d
  username: ubuntu
  public_ip: 3.112.110.17
  private_ip: 172.26.39.114
ssh_key_pair_name: sshkey-5577006791947779411
ssh_private_key: |
  -----BEGIN RSA PRIVATE KEY-----
  MIICXQIBAAKBgQCyJ5onfJVLZmRGq7Jdm9ujdEC97snUL12qA7JS6YBOPGELeroe
  UGaTEqj5Ib0rhR+J7mOIVNKHrS/gmkVMe4vCNiiCtU1zROVQ9TdF6U9CvY7PUQlD
  dow778mW6RSQ1MZkcXsTSbSGdIBhPDV0mz71dipxoLuTAz6ckGfHzgGapQIDAQAB
  AoGBAIVYSPS3NhOajwGqb7XK+6mrUO4Yte5giY3AeI/AgC2O2eA6uuYHrc71T44x
  Z6MUYBfgW5VmT7IHuec18Rqe+mpiANlEmfYrZigS+Xu4S7PMCJpTv09KuA/NuXVD
  XPp5S+oyuOyX/Yarus2H4r7lcOU9vLlAlmqYHluUCi5E6Wi9AkEA4IXwOWezGGFP
  mqauTZ1CFeCirby1S0qNUcFLHE5f4IV29lHy+NNDg2g+mCqItREiLK6UiaPuhQFT
  HHAq+hmg1wJBAMshg5OcVqBHQrwaJEXagsByaVd3RXm8V9WR6sb8N7IHmJffxLxw
  j/MgjUzJj9Jz7oavd7ZnkCBbnCi/0PqsZOMCQAnOD5WSL8IKzd0lFkuRaIdoDfKk
  YQ5urQk69brAuXMmoPFU1tWC9FnSvZkLknjFzMZCwX3ZSNtKGYUOaPIPGHUCQCid
  muF48Rk7JmzWDUqqVlqEheunPY0Jy8Y4VulSpRBD1I8JfxzupNnIOHiSFN/PrnHf
  w+AE9RyDNMYxFGgK8GECQQC0p1SPTLqkZaU4ZmM1o7BI/8YEMXPPI2NUK2w6hR4h
  s6YYyJvlc+tKsJX/KkGP6yO24kd/yk4mRMaA0X9NAGG+
  -----END RSA PRIVATE KEY-----
ssh_public_key: |
  ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgQCyJ5onfJVLZmRGq7Jdm9ujdEC97snUL12qA7JS6YBOPGELeroeUGaTEqj5Ib0rhR+J7mOIVNKHrS/gmkVMe4vCNiiCtU1zROVQ9TdF6U9CvY7PUQlDdow778mW6RSQ1MZkcXsTSbSGdIBhPDV0mz71dipxoLuTAz6ckGfHzgGapG==

List

k8s_lightsail ls

Play with SSH

k8s_lightsail ssh <#number>

Next step

- Config your loadbalancer with IP masters as layer 4
- Init k8s cluster at master node with control lane IP = loadbalancer IP

Delete cluster

k8s_lightsail down

vkaylee/k8slightsail