Hands-On High Performance with Go

Build information

To garner some understanding of the build process, let's take a look at some build examples so we can gain some insight into how the build tooling works together.

Let's say we want to build a simple HTTP server that has a Prometheus exporter. We can create an exporter like so:

package mainimport (    "fmt"    "net/http"    "github.com/prometheus/client_golang/prometheus/promhttp")func main() {    http.Handle("/", promhttp.Handler())    port := ":2112"    fmt.Println("Prometheus Handler listening on port ", port)    http.ListenAndServe(port, nil)}                                                                

After we have our package ready, we can build our package with the following:

go build -p 4 -race -x prometheusExporterExample.go

As we build this binary, we will see a couple of things coming back ...