feat(iaas): min/max acc tests (#811)

* feat(iaas): security group min/max acc test

* feat(iaas): image min/max acc test

* feat(iaas): KeyPair min/max acc test

* feat(iaas): Network area min/max acc test
- fix: wrong atLeast-validator for `minimum_prefix_length`

* feat(iaas): Network min/max acc test

* feat(iaas): Volume min/max acc test
- fix: volume update doesn't work if no name was defined
- fix: volume.server_id can not be set
- fix: error message volume.size returns value but was null

* feat(iaas): Network interfaces min/max acc test

* feat(iaas): Affinity groups acc test

* feat(iaas): Server min/max acc test
- stackit_server_volume_attach
- stackit_server_network_interface_attach
- stackit_server_service_account_attach

* fix(iaas): acc test
- image: fix read of Config.VirtioScsi
- keypair: add missing RequiresReplace() for name
- server: add missing UserData read in datasource and resource

* feat(iaas): public ip acc test
- fix: when a nic is assigned to a public ip, the field network_interface_id leads to recreation

stackit/internal/services/iaas/server/datasource.go

@@ -323,6 +323,10 @@ func mapDataSourceFields(ctx context.Context, serverResp *iaas.Server, model *Da
 		model.BootVolume = types.ObjectNull(bootVolumeDataTypes)
 	}
 
+	if serverResp.UserData != nil && len(*serverResp.UserData) > 0 {
+		model.UserData = types.StringValue(string(*serverResp.UserData))
+	}
+
 	model.AvailabilityZone = types.StringPointerValue(serverResp.AvailabilityZone)
 	model.ServerId = types.StringValue(serverId)
 	model.MachineType = types.StringPointerValue(serverResp.MachineType)

stackit/internal/services/iaas/server/resource.go

@@ -960,6 +960,10 @@ func mapFields(ctx context.Context, serverResp *iaas.Server, model *Model) error
 	if serverResp.Status != nil && *serverResp.Status != wait.ServerDeallocatedStatus {
 		model.AvailabilityZone = types.StringPointerValue(serverResp.AvailabilityZone)
 	}
+
+	if serverResp.UserData != nil && len(*serverResp.UserData) > 0 {
+		model.UserData = types.StringValue(string(*serverResp.UserData))
+	}
 	model.Name = types.StringPointerValue(serverResp.Name)
 	model.Labels = labels
 	model.ImageId = types.StringPointerValue(serverResp.ImageId)