Add GetExportVMConfig to read the /vm/config endpoint

While working on this I noticed a bug in the swagger.yaml definitions
that were not reflecting the state of the Firecracker API.

Full description firecracker-microvm/firecracker#2963

Signed-off-by: Lorenzo Fontana <[email protected]>

Author: fntlnz

client/models/full_vm_configuration.go

@@ -829,29 +829,29 @@ definitions:
   FullVmConfiguration:
     type: object
     properties:
-      balloon_device:
+      balloon:
         $ref: "#/definitions/Balloon"
-      block_devices:
+      drives:
         type: array
         description: Configurations for all block devices.
         items:
           $ref: "#/definitions/Drive"
-      boot_source:
+      boot-source:
         $ref: "#/definitions/BootSource"
       logger:
         $ref: "#/definitions/Logger"
-      machine_config:
+      machine-config:
         $ref: "#/definitions/MachineConfiguration"
       metrics:
         $ref: "#/definitions/Metrics"
-      mmds_config:
+      mmds-config:
         $ref: "#/definitions/MmdsConfig"
-      net_devices:
+      network-interfaces:
         type: array
         description: Configurations for all net devices.
         items:
           $ref: "#/definitions/NetworkInterface"
-      vsock_device:
+      vsock:
         $ref: "#/definitions/Vsock"
 
   InstanceActionInfo:

client/swagger.yaml

@@ -474,3 +474,15 @@ func (f *Client) PatchBalloonStatsInterval(ctx context.Context, balloonStatsUpda
 
 	return f.client.Operations.PatchBalloonStatsInterval(params)
 }
+
+type GetExportVMConfigOpt func(*ops.GetExportVMConfigParams)
+
+func (f *Client) GetExportVMConfig(opts ...GetExportVMConfigOpt) (*ops.GetExportVMConfigOK, error) {
+	p := ops.NewGetExportVMConfigParams()
+	p.SetTimeout(time.Duration(f.firecrackerRequestTimeout) * time.Millisecond)
+	for _, opt := range opts {
+		opt(p)
+	}
+
+	return f.client.Operations.GetExportVMConfig(p)
+}