add docker file

Dockerfile

@@ -0,0 +1,28 @@
+FROM golang:1.22-alpine3.19 AS builder
+
+RUN apk update && \
+    apk add --no-cache  \
+    git
+
+WORKDIR /app
+
+COPY go.mod go.sum ./
+COPY . ./
+
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags '' -a -installsuffix cgo -o go-groceries-api ./cmd/api
+
+FROM alpine:latest
+
+RUN apk update && \
+    apk add --no-cache ca-certificates && \
+    apk add --no-cache tzdata
+
+ENV TZ=Asia/Bangkok
+
+WORKDIR  /root/
+
+COPY --from=builder /app/go-groceries-api /root/api/main
+
+EXPOSE 8081
+
+ENTRYPOINT ["./api/main"]

docker-compose/go-groceries-api.yml

@@ -0,0 +1,18 @@
+version: '3.1'
+services:
+    go-groceries-api:
+        image: go-groceries
+        container_name: go-groceries-api
+        restart: always
+        environment:
+            APP_NAME: groceries_api
+            APP_MYSQL_HOST: mysql
+            APP_MYSQL_PORT: 3306
+            APP_MYSQL_DB_NAME: grocery
+            APP_MYSQL_USERNAME: root
+            APP_MYSQL_PASSWORD: root
+            APP_SRV_SERVER_ADDR: :8081
+        ports:
+            - "8081:8081"
+
+## docker compose -f [FILE_NAME] up

docker-compose/mysql.yml

@@ -9,12 +9,12 @@ services:
             MYSQL_PASSWORD: root
             MYSQL_ROOT_PASSWORD: root
         ports:
-            - 3306:3306
+            - "3306:3306"
     phpmyadmin:
         image: phpmyadmin
         ports:
-          -   8080:80
+          - "8080:80"
         depends_on:
           - db
 
-## docker compose -f [FILE_NAME] up
+## docker compose -f [FILE_NAME] up

pkg/env/env.go

@@ -1,12 +1,13 @@
 package env
 
 import (
+	"fmt"
 	"github.com/joho/godotenv"
 )
 
 func MustLoadEnv() {
 	err := godotenv.Load()
 	if err != nil {
-		panic(err)
+		fmt.Println("cannot find .env file")
 	}
 }