Add Longhorn setup script and integrate into setup-all.sh

infrastructure_setup/setup-longhorn.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+set -e
+
+SCRIPT_PATH="$(realpath "${BASH_SOURCE[0]}")"
+SCRIPT_DIR="$(dirname "$SCRIPT_PATH")"
+cd "$SCRIPT_DIR"
+if [[ -f "../load-env.sh" ]]; then
+  source ../load-env.sh
+fi
+
+echo "Setting up Longhorn..."
+
+# Apply Longhorn with kustomize to apply our customizations
+kubectl apply -k ${SCRIPT_DIR}/longhorn/
+
+echo "Longhorn setup complete!"