Dustin C. Hatch
5f2aaefc35
Setting a default storage class allows PersistentVolumes to be declared without selecting a specific storage class in each object spec.
Persistent Storage Using Longhorn
Longhorn is a Kubernetes-native persistent storage system. It is quite complex, but installing it is fairly straightforward.
Installation
This is mostly based on the official Install with Kubectl instructions. I wanted to add node selectors to the user-deployed and system-managed components, to ensure that Longhorn only runs on x86_64 nodes, per the Node Selector instructions.
kubectl apply -f longhorn.yaml
Ingress
Expose the Longhorn UI outside the cluster:
printf 'Longhorn username: '
read longhorn_username
printf 'Longhorn password: '
read -s longhorn_password
printf '%s:%s\n' \
"${longhorn_username}" \
"$(openssl passwd -stdin -apr1 <<< "${longhorn_password}")" \
> auth
kubectl create secret generic -n longhorn-system basic-auth --from-file auth
kubectl apply -f longhorn-ingress.yaml