Created dockerfile and compose

Dockerfile

@@ -0,0 +1,20 @@
+# Dockerfile
+FROM golang:tip-alpine3.22 AS builder
+WORKDIR /app
+# RUN apk add --no-cache git ca-certificates
+COPY go.mod go.sum ./
+RUN go mod download
+COPY . .
+ENV CGO_ENABLED=0 GOOS=linux GOARCH=amd64
+RUN go build -ldflags="-s -w" -o /app/echo .
+
+FROM alpine:3.22
+# RUN apk add --no-cache ca-certificates tzdata && update-ca-certificates
+RUN addgroup -S app && adduser -S app -G app
+USER app
+WORKDIR /app
+COPY --from=builder /app/echo /app/echo
+COPY --from=builder /app/front_files /app/front_files
+# EXPOSE is optional with custom networking, we can keep or remove it as we are using custom network with compose
+EXPOSE 8900
+ENTRYPOINT ["/app/echo"]

docker-compose.yml

@@ -0,0 +1,19 @@
+
+services:
+  echo:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: echo-image:latest
+    container_name: echo
+    restart: unless-stopped
+    ports:
+      - "8900:8900"
+    networks:
+      - echo-net
+    environment:
+      - TZ=UTC
+networks:
+  echo-net:
+    name: echo-net
+      

main.go

@@ -7,6 +7,7 @@ import (
 
 func main() {
 	fmt.Println("Hello from echo-echo-cho-o")
+	fmt.Println("Listening to port 8900")
 
-	api.BuildRouter("localhost:8080")
+	api.BuildRouter(":8900")
 }