fix: add single initialization to main

Author: dnitsch

tokenstore/provider/awsparamstr/main.go

@@ -2,33 +2,38 @@ package main
 
 import (
 	"context"
+	"os"
 
 	"github.com/DevLabFoundry/configmanager-plugin/awsparamstr/impl"
 	"github.com/DevLabFoundry/configmanager/v3/tokenstore"
 	"github.com/hashicorp/go-hclog"
 	"github.com/hashicorp/go-plugin"
 )
 
+type implIface interface {
+	Value(token string, metadata []byte) (string, error)
+}
 type TokenStorePlugin struct {
-	log hclog.Logger
+	impl implIface // Value(token string, metadata []byte) (string, error)
 }
 
 func (ts TokenStorePlugin) Value(key string, metadata []byte) (string, error) {
-	srv, err := impl.NewParamStore(context.Background(), ts.log)
-	if err != nil {
-		return "", err
-	}
-	return srv.Value(key, metadata)
+	return ts.impl.Value(key, metadata)
 }
 
 func main() {
 	log := hclog.New(hclog.DefaultOptions)
 	log.SetLevel(hclog.LevelFromString("error"))
 
-	// if os.Getenv("CONFIGMANAGER_LOG")
-	ts := TokenStorePlugin{log: log}
+	i, err := impl.NewParamStore(context.Background(), log)
+	if err != nil {
+		log.Error("error", err)
+		os.Exit(1)
+	}
+
+	ts := TokenStorePlugin{impl: i}
+
 	plugin.Serve(&plugin.ServeConfig{
-		// Logger: ,
 		HandshakeConfig: tokenstore.Handshake,
 		Plugins: map[string]plugin.Plugin{
 			"configmanager_token_store": &tokenstore.GRPCPlugin{Impl: ts},