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package main
import (
"context"
"fmt"
"io"
"log"
"net/http"
"github.com/spiffe/go-spiffe/v2/spiffeid"
"github.com/spiffe/go-spiffe/v2/spiffetls/tlsconfig"
"github.com/spiffe/go-spiffe/v2/workloadapi"
)
const (
// Workload API socket path
socketPath = "unix:///tmp/agent.sock"
serverURL = "https://localhost:8443/"
)
func main() {
if err := run(context.Background()); err != nil {
log.Fatal(err)
}
}
func run(ctx context.Context) error {
ctx, cancel := context.WithCancel(ctx)
defer cancel()
// Create a `workloadapi.X509Source`, it will connect to Workload API using provided socket path
// If socket path is not defined using `workloadapi.SourceOption`, value from environment variable `SPIFFE_ENDPOINT_SOCKET` is used.
source, err := workloadapi.NewX509Source(ctx, workloadapi.WithClientOptions(workloadapi.WithAddr(socketPath)))
if err != nil {
return fmt.Errorf("unable to create X509Source: %w", err)
}
defer source.Close()
// Allowed SPIFFE ID
serverID := spiffeid.RequireFromString("spiffe://example.org/server")
// Create a `tls.Config` to allow mTLS connections, and verify that presented certificate has SPIFFE ID `spiffe://example.org/server`
tlsConfig := tlsconfig.MTLSClientConfig(source, source, tlsconfig.AuthorizeID(serverID))
client := &http.Client{
Transport: &http.Transport{
TLSClientConfig: tlsConfig,
},
}
r, err := client.Get(serverURL)
if err != nil {
return fmt.Errorf("error connecting to %q: %w", serverURL, err)
}
defer r.Body.Close()
body, err := io.ReadAll(r.Body)
if err != nil {
return fmt.Errorf("unable to read body: %w", err)
}
log.Printf("%s", body)
return nil
}
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