VOL-3943 - multiple stack configuration support

Change-Id: I28cb26b6cd6fbc5b3f0e8d406a68bf5c964a57fd
diff --git a/internal/pkg/apis/config/v3/convert.go b/internal/pkg/apis/config/v3/convert.go
new file mode 100644
index 0000000..edb6595
--- /dev/null
+++ b/internal/pkg/apis/config/v3/convert.go
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2021-present Ciena Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package config
+
+import (
+	"strconv"
+
+	configv1 "github.com/opencord/voltctl/internal/pkg/apis/config/v1"
+	configv2 "github.com/opencord/voltctl/internal/pkg/apis/config/v2"
+)
+
+func FromConfigV1(v1 *configv1.GlobalConfigSpec) *GlobalConfigSpec {
+	v3 := NewDefaultConfig()
+	s3 := v3.Current()
+
+	s3.Server = v1.Server
+	s3.Kafka = v1.Kafka
+	s3.KvStore = v1.KvStore
+	s3.Tls.UseTls = v1.Tls.UseTls
+	s3.Tls.CACert = v1.Tls.CACert
+	s3.Tls.Cert = v1.Tls.Cert
+	s3.Tls.Key = v1.Tls.Key
+	if v1.Tls.Verify != "" {
+		if b, err := strconv.ParseBool(v1.Tls.Verify); err == nil {
+			s3.Tls.Verify = b
+		}
+	}
+	s3.Grpc.Timeout = v1.Grpc.Timeout
+	s3.Grpc.MaxCallRecvMsgSize = v1.Grpc.MaxCallRecvMsgSize
+	s3.KvStoreConfig.Timeout = v1.KvStoreConfig.Timeout
+	s3.K8sConfig = v1.K8sConfig
+	return v3
+}
+
+func FromConfigV2(v2 *configv2.GlobalConfigSpec) *GlobalConfigSpec {
+	v3 := NewDefaultConfig()
+	s3 := v3.Current()
+
+	s3.Server = v2.Server
+	s3.Kafka = v2.Kafka
+	s3.KvStore = v2.KvStore
+	s3.Tls.UseTls = v2.Tls.UseTls
+	s3.Tls.CACert = v2.Tls.CACert
+	s3.Tls.Cert = v2.Tls.Cert
+	s3.Tls.Key = v2.Tls.Key
+	s3.Tls.Verify = v2.Tls.Verify
+	s3.Grpc.ConnectTimeout = v2.Grpc.ConnectTimeout
+	s3.Grpc.Timeout = v2.Grpc.Timeout
+	s3.Grpc.MaxCallRecvMsgSize = v2.Grpc.MaxCallRecvMsgSize
+	s3.KvStoreConfig.Timeout = v2.KvStoreConfig.Timeout
+	s3.K8sConfig = v2.K8sConfig
+	return v3
+}