This will set up a new multi-master Kubernetes cluster that has
- 3 masters, each master has 2 CPUs and 2 GBs RAM
- 3 workers, each worker has 2 CPUs and 2 GBs RAM
- 2 load balancers, each load balancer has 1 CPU and 1 GB RAM
Before you want to try this on your local, here are requirements
- Your computer must have at least 14 CPUs, 14 GBs RAM
- A public key in .ssh/id_rsa.pub in your home directory
- Directly download Virtualbox and install, or use homebrew
brew install --cask virtualbox - Vagrant
brew install --cask vagrant - (Optional) Vagrant Manager
brew install --cask vagrant-manager
cd create-ha-cluster
vagrant up
Let's ssh into the first master VM
ssh ci@172.16.1.11
ansible-playbook -i playbook/lb_inventory.yml playbook/lb_playbook.yml --extra-vars "cluster_vip=172.16.0.16"
Let's ssh into the load balancer VM by the VIP, and check haproxy service status
ssh ci@172.16.0.16
systemctl status haproxy
ansible-playbook -i playbook/cluster_inventory.yml playbook/cluster_playbook.yml --extra-vars "cluster_vip=172.16.0.16"
Let's ssh into the first master VM, and verify the cluster
ssh ci@172.16.1.11
kubectl get nodes
Download kubeconfig to your local
mkdir ~/.kube-local
scp ci@172.16.1.11:/home/ci/.kube/config ~/.kube-local/config
export KUBECONFIG=$HOME/.kube-local/config && kubectl get nodes