feat: add migrate database from a source to a target databse

pkg/var.go

@@ -7,13 +7,13 @@ const algorithm = "aes256"
 const gpgExtension = "gpg"
 
 var (
-	storage            = "local"
-	file               = ""
-	dbPassword         = ""
-	dbUserName         = ""
-	dbName             = ""
-	dbHost             = ""
-	dbPort             = "5432"
+	storage = "local"
+	file    = ""
+	//dbPassword         = ""
+	//dbUserName         = ""
+	//dbName             = ""
+	//dbHost             = ""
+	//dbPort             = "5432"
 	executionMode      = "default"
 	storagePath        = "/backup"
 	disableCompression = false
@@ -27,6 +27,16 @@ var dbHVars = []string{
 	"DB_USERNAME",
 	"DB_NAME",
 }
+var sdbRVars = []string{
+	"SOURCE_DB_HOST",
+	"SOURCE_DB_PORT",
+	"SOURCE_DB_NAME",
+	"SOURCE_DB_USERNAME",
+	"SOURCE_DB_PASSWORD",
+}
+
+var dbConf *dbConfig
+var sDbConf *dbSourceConfig
 
 // sshVars Required environment variables for SSH remote server storage
 var sshVars = []string{