Add option to list storage

proxmox.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"bytes"
+	"encoding/json"
 	"fmt"
 	"os"
 	"os/exec"
@@ -236,3 +237,63 @@ func createProxmoxVM(config *Config) error {
 
 	return nil
 }
+
+func listAvailableStorage(config *Config) error {
+	fmt.Printf("Detecting available storage on %s...\n", config.ProxmoxHost)
+
+	sshCmd := func(args ...string) *exec.Cmd {
+		fullArgs := []string{
+			"-o", "StrictHostKeyChecking=no",
+			"-o", "UserKnownHostsFile=/dev/null",
+			fmt.Sprintf("%s@%s", strings.Split(config.ProxmoxUser, "@")[0], config.ProxmoxHost),
+		}
+		fullArgs = append(fullArgs, args...)
+		return exec.Command("ssh", fullArgs...)
+	}
+
+	cmd := sshCmd("pvesm", "status", "--output-format", "json")
+	var stdout bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = os.Stderr
+
+	if err := cmd.Run(); err != nil {
+		return fmt.Errorf("failed to get storage status: %w", err)
+	}
+
+	// Parse JSON output
+	var storageList []map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &storageList); err != nil {
+		return fmt.Errorf("failed to parse storage status: %w", err)
+	}
+
+	fmt.Println("\nAvailable storage:")
+	fmt.Println("================")
+
+	found := false
+	for _, storage := range storageList {
+		nameVal, ok := storage["storage"]
+		if !ok {
+			continue
+		}
+		name, _ := nameVal.(string)
+
+		typeVal, _ := storage["type"]
+		typeStr, _ := typeVal.(string)
+
+		activeVal, _ := storage["active"]
+		activeFloat, _ := activeVal.(float64)
+
+		if activeFloat == 1 {
+			fmt.Printf("- %s (%s) - ACTIVE\n", name, typeStr)
+			found = true
+		}
+	}
+
+	if !found {
+		fmt.Println("No active storage found!")
+		fmt.Println("\nManual check:")
+		fmt.Println("  ssh root@your-proxmox 'pvesm status'")
+	}
+
+	return nil
+}