fix(baremetal): compute mapping id in private network

Author: Laure-di

internal/services/baremetal/server.go

@@ -217,13 +217,18 @@ If this behaviour is wanted, please set 'reinstall_on_ssh_key_changes' argument
 					Schema: map[string]*schema.Schema{
 						"id": {
 							Type:             schema.TypeString,
-							Description:      "The private network ID",
+							Description:      "The ID of the private network to associate with the server",
 							Required:         true,
 							ValidateDiagFunc: verify.IsUUIDorUUIDWithLocality(),
 							StateFunc: func(i interface{}) string {
 								return locality.ExpandID(i.(string))
 							},
 						},
+						"mapping_id": {
+							Type:        schema.TypeString,
+							Description: "The ID of the Server-to-Private Network mapping",
+							Computed:    true,
+						},
 						"ipam_ip_ids": {
 							Type:     schema.TypeList,
 							Optional: true,

internal/services/baremetal/types.go

@@ -195,6 +195,7 @@ func flattenPrivateNetworks(region scw.Region, privateNetworks []*baremetalV3.Se
 	for _, privateNetwork := range privateNetworks {
 		flattenedPrivateNetworks = append(flattenedPrivateNetworks, map[string]interface{}{
 			"id":          regional.NewIDString(region, privateNetwork.PrivateNetworkID),
+			"mapping_id":  regional.NewIDString(region, privateNetwork.ID),
 			"ipam_ip_ids": regional.NewRegionalIDs(region, privateNetwork.IpamIPIDs),
 			"vlan":        types.FlattenUint32Ptr(privateNetwork.Vlan),
 			"status":      privateNetwork.Status,