Set up persistent storage for K3s (via USB drive)

set-up-persistent-storage-for-K3s.md

Set up persistent storage for K3s (via USB drive)

1. Get root: ssh pi-k3s-master.local -t sudo su
2. Find your disk via fdisk -l (e.g. /dev/sda1)
3. Erase drive by repartitioning: mkfs.ext4 /dev/sda1
4. Mount drive:

   mkdir /mnt/pi-k3s-storage
   chown -R ericboehs:ericboehs /mnt/pi-k3s-storage
   mount /dev/sda1 /mnt/pi-k3s-storage
   

5. Configure auto-mount:

   echo "UUID=$(blkid -s UUID -o value /dev/sda1) /mnt/pi-k3s-storage ext4 defaults 0 0" >> /etc/fstab
   

6. Install nfs server on master:

   apt-get install -y nfs-kernel-server
   echo "/mnt/pi-k3s-storage *(rw,no_root_squash,insecure,async,no_subtree_check,anonuid=1000,anongid=1000)" >> /etc/exports
   exportfs -ra # Start nfs
   

7. Install nfs client on nodes:

   ssh pi-k3s-node1.local -t "sudo su"
   mkdir /mnt/pi-k3s-storage
   chown -R ericboehs:ericboehs /mnt/pi-k3s-storage
   mount 10.0.1.90:/mnt/pi-k3s-storage /mnt/pi-k3s-storage
   echo "10.0.1.90:/mnt/pi-k3s-storage /mnt/pi-k3s-storage nfs rw 0 0" >> /etc/fstab
   reboot
   df -h /mnt/pi-k3s-storage