shahkamran / photon-k8-cluster

Install Kubernetes Cluster on Photon VMs

photon-k8-cluster

Install Kubernetes Cluster on Photon VMs

Preparation

• Get the repository - git clone https://github.com/shahkamran/photon-k8-cluster.git
• Download Photon OS from https://github.com/vmware/photon/wiki/Downloading-Photon-OS

Build Infrastructure Machines

• Install 1 x Master VM - photon-master
• Install 1 or more Node VMs - photon-node1 and so on

Configure Infrastructure Machines

• Log-in as root from console to each server installed with Photon OS and perform below tasks.
• Enable SSH on all photon servers. vim /etc/ssh/sshd_config
• Find below line and uncomment by removing the hash "#" in front of the line. #PermitRootLogin prohibit-password
• Check if you have a ssh key set up on your computer cat ~/.ssh/id_rsa.pub .
• If no key is set up, run ssh-keygen -t rsa to set one up.
• Take a copy the key output from cat ~/.ssh/id_rsa.pub
• On each Photon VM created, perform below tasks touch ~/.ssh/authorized_keys chmod 700 ~/.ssh; chmod 640 ~/.ssh/authorized_keys
• Add the copy of key to this file vim ~/.ssh/authorized_keys
• You should now be able to log in without passwrd using ssh root@photon-master.

Optional

• Install and set up PMD tdnf install pmd pmd-cli systemctl start pmd.service

Define Inventory for the playbook scope

• Update Inventory with Photon VM details in hosts file, as as example.

# hosts
[kubernetes_cluster]
192.168.1.1
192.168.1.2

[masters]
192.168.1.1

[minions]
192.168.1.2

[kubernetes_cluster:vars]
master_hostname=photon-master
master_ip=192.168.1.1
minion_hostname=photon-node
minion_ip=192.168.1.2

Run the Ansible YAML Playbook to build Kubernetes Cluster

• Run the following from the repository location where both hosts and kubernetes_cluster.yml are located. ansible-playbook -i hosts --user root kubernetes_cluster.yml

*Check your cluster status from Master node. ssh root@photon-master kubectl get nodes