# Build stage
FROM golang:1.22-alpine AS builder

RUN apk add --no-cache git ca-certificates

WORKDIR /app

COPY go.mod go.sum ./
RUN go mod download

COPY . .

RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /api-gateway ./cmd/api-gateway

# Runtime stage
FROM alpine:3.19

RUN apk add --no-cache ca-certificates tzdata

WORKDIR /app

COPY --from=builder /api-gateway .

ENV PORT=3015
ENV GIN_MODE=release

EXPOSE 3015

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:3015/health || exit 1

CMD ["./api-gateway"]