chore: docker file, healthcheck route

Makefile

@@ -5,6 +5,6 @@ vet:
 build:
 	CGO_ENABLED=0 GOOS=linux go build -o ./bin/ ./...
 db_migrate:
-	go run ./cmd/api/migrate/default.go
+	go run ./cmd/migrator/main.go
 docs_generate:
 	rm -rf docs/* && swag init

README.md

@@ -8,7 +8,7 @@ make db_migrate
 
 ## Development
 
-Create a dotenv file.
+Create `.env` file.
 
 ```bash
 cp .env.example .env
@@ -43,7 +43,7 @@ Binaries will be generated inside `PROJECT_ROOT/bin/`
 
 [gin-swagger](https://github.com/swaggo/gin-swagger) is used for API documentation.
 
-To browse docs, open `BASE_URL/swagger/index.html`.
+To browse the API documentation, open `BASE_URL/swagger/index.html`.
 
 Generate/update docs:
 

deployments/docker-compose.yml

@@ -2,8 +2,10 @@ version: "3"
 
 services:
   api:
-    container_name: api
-    build: .
+    container_name: gin-api
+    build:
+      context: ../
+      dockerfile: ./prod.Dockerfile
     ports:
       - "8080:8080"
     restart: unless-stopped

deployments/Dockerfile → deployments/prod.Dockerfile

@@ -1,5 +1,5 @@
 ##
-## STEP 1 - BUILD
+## STAGE 1 - BUILD
 ##
 
 FROM golang:1.20 as builder
@@ -23,22 +23,22 @@ RUN go mod verify
 
 COPY . .
 
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o ./bin/app .
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o ./bin/server ./cmd/server
 
 ##
-## STEP 2 - DEPLOY
+## STAGE 2 - DEPLOY
 ##
 
 FROM scratch
 
-COPY --from=builder /source/bin/app /app
+COPY --from=builder /source/bin/server /server
 
-COPY .env /.env
+ENV TWELVE_FACTOR_MODE true
 
 COPY --from=builder /etc/passwd /etc/passwd
 
 USER 1001
 
 EXPOSE 8080
 
-ENTRYPOINT ["/app"]
+ENTRYPOINT ["/server"]

internal/router/router.go

@@ -1,6 +1,8 @@
 package router
 
 import (
+	"net/http"
+
 	"github.com/gin-gonic/gin"
 	swaggerFiles "github.com/swaggo/files"
 	ginSwagger "github.com/swaggo/gin-swagger"
@@ -13,9 +15,13 @@ func RegisterRoutes() *gin.Engine {
 	router := gin.New()
 
 	router.Use(gin.Logger())
-
 	router.Use(gin.Recovery())
 
+	// Health check route
+	router.GET("/", func(c *gin.Context) {
+		c.String(http.StatusOK, "OK")
+	})
+
 	v1 := router.Group("/api")
 	{
 		authGroup := v1.Group("/auth")