This repository contains automation scripts to spin up k8s cluster on bare metal cloud compute machines.
The aim of this project is to create scripts for all major cloud providers. However, as a starter, Only GCP is supported.
To read more about this project, one can check below article as well.
- First go to GCP console and open a cloud shell.
- If you are a free user, create a project for yourself or use an existing project. For paid users, this step is not required.
- Clone this git repository in home directory.
cd ~ && git clone https://github.com/manishbansal8843/cloud-k8s-cluster.git && cd cloud-k8s-cluster - Execute install.sh script with following parameters.
NUM_OF_NODES=3 GCP_PROJECT_NAME=kubeadm-init ./install.sh - Thats it. This will install a 3 node cluster on GCP with kubectl configured on master node.
Below are the logs of the script for reference.
manishbansal8843@cloudshell:~/cloud-k8s-cluster (kubeadm-init)$ NUM_OF_NODES=2 GCP_PROJECT_NAME=kubeadm-init ./install.sh
=====================================Welcome to cloud k8s cluster installer=====================================
Usage: NUM_OF_NODES=3 CLOUD_PROVIDER=gcp GCP_PROJECT_NAME=project-name-value ./install.sh
GCP_PROJECT_NAME value kubeadm-init will be used to create new k8s VM instances.
Checking if project kubeadm-init exists or not
kubeadm-init kubeadm-init 859215342347
kubeadm-init exists. Will be using it to create k8s VMs.
Updated property [core/project].
Updated property [compute/zone].
billingAccountName: billingAccounts/0114E6-AEFA99-BAD7BA
billingEnabled: true
name: projects/kubeadm-init/billingInfo
projectId: kubeadm-init
Created [https://www.googleapis.com/compute/v1/projects/kubeadm-init/zones/us-east1-b/instances/master-node].
NAME ZONE MACHINE_TYPE PREEMPTIBLE INTERNAL_IP EXTERNAL_IP STATUS
master-node us-east1-b n1-standard-2 10.142.0.19 34.74.174.212 RUNNING
Master node installation is in progress. Sleeping for 30 seconds...
Master node installation is in progress. Sleeping for 30 seconds...
Master node installation is in progress. Sleeping for 30 seconds...
Master node installation is in progress. Sleeping for 30 seconds...
Master node installation is in progress. Sleeping for 30 seconds...
Master node installed successfully!!
NAME STATUS ROLES AGE VERSION
master-node Ready master 44s v1.17.3
Cluster token is wx5dqt.vp0v6txqoicbb6px
Cluster ca cert hash is 6577eb24d90cc174b896872b26fc4e044fa0b579781052b79ab06b252ebfc48d
K8s master node internal ip is 10.142.0.19
Created [https://www.googleapis.com/compute/v1/projects/kubeadm-init/zones/us-east1-b/instances/worker-node-0].
NAME ZONE MACHINE_TYPE PREEMPTIBLE INTERNAL_IP EXTERNAL_IP STATUS
worker-node-0 us-east1-b n1-standard-2 10.142.0.20 35.231.12.32 RUNNING
###All worker nodes installed successfully###
###Polling to check if all nodes are ready###
Number of ready nodes are: 1 which is less than total number of nodes : 2
Sleeping for 30 secs...
Number of ready nodes are: 1 which is less than total number of nodes : 2
Sleeping for 30 secs...
Number of ready nodes are: 1 which is less than total number of nodes : 2
Sleeping for 30 secs...
Number of ready nodes are: 1 which is less than total number of nodes : 2
Sleeping for 30 secs...
Number of ready nodes are: 1 which is less than total number of nodes : 2
Sleeping for 30 secs...
Number of ready nodes are: 2 which is equal to total number of nodes : 2
All nodes are up!
NAME STATUS ROLES AGE VERSION
master-node Ready master 4m19s v1.17.3
worker-node-0 Ready <none> 40s v1.17.3