FROM golang:1.23-alpine AS builder

WORKDIR /app
COPY . .

# Build loadr
RUN go build -o loadr

# Create and build the server using a shell script
RUN <<EOF cat > server.go
package main

import (
    "log"
    "net/http"
)

func main() {
    http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
        w.Write([]byte("Loadr is ready"))
    })

    log.Printf("Server starting on :8080")
    if err := http.ListenAndServe(":8080", nil); err != nil {
        log.Fatal(err)
    }
}
EOF

RUN go build -o server server.go

FROM alpine:latest

WORKDIR /app
COPY --from=builder /app/loadr .
COPY --from=builder /app/server .

EXPOSE 8080

CMD ["/app/server"]