fnapi: set user agent based on internal version.

internal/cli/fncobra/main.go

@@ -12,6 +12,7 @@ import (
 	"log"
 	"os"
 	"path/filepath"
+	"runtime/debug"
 	"runtime/pprof"
 
 	containerdlog "github.com/containerd/containerd/log"
@@ -61,6 +62,12 @@ type MainOpts struct {
 func DoMain(opts MainOpts) {
 	fncobraname.CmdName = opts.Name
 
+	if info, ok := debug.ReadBuildInfo(); ok {
+		if v, err := version.VersionFrom(info); err == nil {
+			fnapi.UserAgent = fmt.Sprintf("%s/%s", opts.Name, v.Version)
+		}
+	}
+
 	style, err := doMain(opts)
 
 	if err != nil && !errors.Is(err, context.Canceled) {

internal/fnapi/fnapi.go

@@ -30,6 +30,8 @@ var (
 	EndpointAddress             = "https://api.namespacelabs.net"
 	AdminMode                   = false
 	ExchangeGithubToTenantToken = false
+
+	UserAgent = "ns/unknown"
 )
 
 func SetupFlags(flags *pflag.FlagSet) {
@@ -81,6 +83,7 @@ func DecodeJSONResponse(resp any) func(io.Reader) error {
 
 func AddNamespaceHeaders(ctx context.Context, headers *http.Header) {
 	headers.Add("NS-Internal-Version", fmt.Sprintf("%d", versions.Builtin().APIVersion))
+	headers.Add("User-Agent", UserAgent)
 
 	if AdminMode {
 		headers.Add("NS-API-Mode", "admin")

internal/versions/versions.json

@@ -1,5 +1,5 @@
 {
-	"api_version": 95,
+	"api_version": 96,
 	"minimum_api_version": 40,
 	"cache_version": 1
 }