# Casa k3s cluster

**Table of Contents:**

- [Nodes](#nodes)
  - [Master Node](#master-node)
  - [worker node](#worker-node)

## Nodes

**Setup user for ssh access:**

``` bash
apt install sudo
usermod -aG sudo mf

```

**Disable swap:**

``` bash
swapoff -a
Edit /etc/fstab and comment out any swap entries:
# /swapfile none swap sw 0 0
```

**Other Packages:**

``` bash
sudo apt update -y | sudo apt install curl btop -y
```

### Master Node

- debian 12
- 2g ram
- 24Gb disk

``` bash
ip a # check ethernet name

# removes automatic vonfiguration as dhcp client
sed -i '/ens18/d' /etc/network/interfaces

cat <<EOF > /etc/network/interfaces.d/ens18
# my network configuration
auto ens18
iface ens18 inet static
  address 192.168.14.9/24
  gateway 192.168.0.1
EOF

cat <<EOF > /etc/resolv.conf       
domain dev.lan
search dev.lan. lan.
nameserver 192.168.14.1
EOF
```

``` bash
curl -sfL https://get.k3s.io | sh -
```

### worker node

- debian 12
- 4g ram
- 8Gb OS disk
- 16Gb data disk

``` bash
# execute on server to get token
cat /var/lib/rancher/k3s/server/node-token
```

**Setup worker node:**

``` bash
# execute on server to get token
cat /var/lib/rancher/k3s/server/node-token
curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="agent --server https://casa.dev.lan:6443 --token <TOKEN>" sh -s -
```