Homelab

My attempt to create a homelab. This repo will contain various configuration files for my homelab.

Ansible

First install the ansible in the host machine only.

Then create a ssh key on the host machine and copy it to the remote machines / nodes / worker nodes.

Remember to add ssh key in the ~/.ssh/authorized_keys and give it proper permissions.

In order to use pacman for arch linux, install ansible-galaxy collection install community.general

Then run the playbook: ansible-playbook -i inventory/inventory.ini playbooks/update_system.yaml --ask-become-pass

Here:

• -i inventory/inventory.ini will specify which inventory to use
• --ask-become-pass will ask for the root password for the remote machines

Kubernetes

• Enable kubelet: sudo systemctl enable --now kubelet

• sudo kubeadm init --cri-socket=/run/containerd/containerd.sock

• Install Flannel:

kubectl apply -f https://github.com/flannel-io/flannel/releases/latest/download/kube-flannel.yml

Monitoring

we need node exporter for getting the stats. A good way for doing it is using daemonSet of K8s so it automatically installs node-exporter in every pod we will initiate.

We will use hlem as package manager. We will use this stack for promethus installation https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack

Initial installation:

 helm install prometheus prometheus-community/kube-prometheus-stack

Show Values:

helm show values prometheus-community/kube-prometheus-stack > values.yaml

Update:

helm install prometheus prometheus-community/kube-prometheus-stack -f values.yaml