initial commit

pkg/validators/validators.go

@@ -0,0 +1,46 @@
+package validators
+
+import (
+	"fmt"
+	"os/exec"
+)
+
+// CheckBridge returns nil if the bridge exists on the host.
+func CheckBridge(name string) error {
+	if name == "" {
+		return fmt.Errorf("bridge name required")
+	}
+	if err := exec.Command("bash", "-lc", fmt.Sprintf("ip link show %s", name)).Run(); err != nil {
+		return fmt.Errorf("bridge %s not found", name)
+	}
+	return nil
+}
+
+// CheckBridgeSet validates all bridges in NIC specs.
+func CheckBridgeSet(nics []libvirt.NICSpec) error {
+	for _, nic := range nics {
+		if err := CheckBridge(nic.Bridge); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// CheckBridgeSetCT validates bridges for LXC NICs.
+func CheckBridgeSetCT(nics []lxc.NICSpec) error {
+	for _, nic := range nics {
+		if err := CheckBridge(nic.Bridge); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// CheckStoragePool is a stub; implement LVM/ZFS/dir verification as needed.
+func CheckStoragePool(name string) error {
+	if name == "" {
+		return fmt.Errorf("storage pool name required")
+	}
+	// TODO: query configured pools
+	return nil
+}