kubeStolz

kubeStolz is hybrid multi cloud Kubernetes cluster

Deploy a multicloud dev Kubernetes Cluster (GCP vm and AWS ec2 and its vpn connection)

Quick Start if you have questions, check the documentation https://github.com/tech-inducers/kubeStolz/wiki and join us on the #kubeStloz

Prerequisite

Install terraform

https://www.terraform.io/downloads.html

Create cluster using kubespray

https://kubernetes.io/docs/setup/production-environment/tools/kubespray/

install ansible and jinja Ansible v2.9 and python-netaddr is installed on the machine that will run Ansible commands Jinja 2.11 (or newer) is required to run the Ansible Playbooks

Terraform execution

go to dev directory

$terraform init

$terraform validate

$terraform plan

$terraform apply

Kubespray execution

git clone https://github.com/kubernetes-sigs/kubespray.git

go to kubespray directory

Install dependencies from requirements.txt

sudo pip3 install -r requirements.txt

Copy inventory/sample as inventory/mycluster cp -rfp inventory/sample inventory/mycluster

create inventory file

Example file all: hosts: ip-10-0-0-25: (hostname defined in terraform for aws ec2)

  ansible_host: 54.200.87.20 (public ip of aws ec2)

  ansible_ssh_user: ubuntu (ec2 username defined in terraform)

  ansible_ssh_private_key_file: (file path to ec2 pem file
  ip: 10.0.0.25 (private ip of aws ec2)
  access_ip: 10.0.0.25 (private ip of aws ec2)

gcp-vm-us-central1:
  ansible_host: 34.71.104.88 (public ip of gcp vm)
  ip: 10.240.0.100 (private ip of gcp vm)
  access_ip: 10.240.0.100 (private ip of gcp vm)

children: kube-master: hosts: gcp-vm-us-central1: (master node we deined as gcp vm)

kube-node:
  hosts:
    ip-10-0-0-25: (aws ec2 vm hostname)
    gcp-vm-us-central1: (gcp vm hostname)

etcd:
  hosts:

gcp-vm-us-central1: (master hostname)

k8s-cluster:
  children:
    kube-master:
    kube-node:
calico-rr:
  hosts: {}

check ssh connection of aws ec2 and gcp vm

ansible -i path to hosts.yml file -m shell -a 'hostnamectl' all

create cluster using kubespray ansible command

ansible-playbook -I path to hosts.yml file --become --become-user=root cluster.yml

rerun create cluster if it fails or skipped

validate cluster creation

$kubectl get all --all-namespaces

if you find the The connection to the server localhost:8080 was refused - did you specify the right host or port?

Follow the following steps

ssh to master node

$mkdir -p $HOME/.kube

$sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config

$udo chmod 777 $HOME/.kube/config

$kubectl get all --all-namespaces