chore: add multistage build to optimize the image size

Dockerfile

@@ -6,6 +6,9 @@ COPY . .
 
 RUN apk add build-base && cd server && go mod download && go build && chmod 777 server && ls -l
 
+FROM alpine:latest
+RUN apk --no-cache add ca-certificates
+WORKDIR /root/
+COPY --from=builder /app/server/server .
 EXPOSE 8080
-
+CMD [ "./server" ]
-ENTRYPOINT [ "/app/server/server" ]

docker-compose.yaml

@@ -1,5 +1,4 @@
 version: "3.9" 
-   
 services:
  db:
   image: postgres
@@ -12,7 +11,7 @@ services:
   ports:
    - 5432:5432
  yauth:
-  build: .
+  image: lakhansamani/yauth:0.1.0-beta.0
   ports:
    - 8080:8080
   depends_on:

server/constants/env.go

@@ -1,6 +1,7 @@
 package constants
 
 import (
+	"flag"
 	"log"
 	"os"
 	"strings"
@@ -36,6 +37,19 @@ var (
 	VERIFY_EMAIL_URI    = ""
 )
 
+func ParseArgs() {
+	dbURL := flag.String("db_url", "", "Database connection string")
+	dbType := flag.String("db_type", "", "Database type, possible values are postgres,mysql,sqlit")
+	flag.Parse()
+	if *dbURL != "" {
+		DB_URL = *dbURL
+	}
+
+	if *dbType != "" {
+		DB_TYPE = *dbType
+	}
+}
+
 func init() {
 	err := godotenv.Load()
 	if err != nil {
@@ -78,6 +92,8 @@ func init() {
 		IS_PROD = false
 	}
 
+	ParseArgs()
+
 	if DB_TYPE == "" {
 		DB_TYPE = enum.Postgres.String()
 	}

server/db/db.go

@@ -34,6 +34,7 @@ var Mgr Manager
 func init() {
 	var db *gorm.DB
 	var err error
+	log.Println("=> from db:", constants.DB_TYPE, constants.DB_URL)
 	ormConfig := &gorm.Config{
 		NamingStrategy: schema.NamingStrategy{
 			TablePrefix: "yauth_",