# Start from the official Go base image

FROM golang:1.24-alpine AS builder

# Set environment variables

ENV GO111MODULE=on \

CGO_ENABLED=0 \

GOOS=linux \

GOARCH=amd64

# Create app directory

WORKDIR /app

# Copy go.mod and go.sum first for dependency caching

COPY go.mod go.sum ./

RUN go mod download

# Copy the rest of the code

COPY . .

# Build the Go application

RUN go build -o file-mgmt-srv .

# Use a minimal final image

FROM alpine:latest

WORKDIR /root/

# Copy the binary

COPY --from=builder /app/file-mgmt-srv .

COPY --from=builder /app/index.html .

COPY --from=builder /app/resource ./resource

# (Optional) Override default port if you want

ENV SERVICE_PORT=8088

# Expose the same port

EXPOSE 8088

CMD ["./file-mgmt-srv"]