chore: centralize build info for site (#13104)

The build info passed to the frontend via HTML was incorrect.

coderd/coderd.go

@@ -436,6 +436,15 @@ func New(options *Options) *API {
 
 	api.AppearanceFetcher.Store(&appearance.DefaultFetcher)
 	api.PortSharer.Store(&portsharing.DefaultPortSharer)
+	buildInfo := codersdk.BuildInfoResponse{
+		ExternalURL:     buildinfo.ExternalURL(),
+		Version:         buildinfo.Version(),
+		AgentAPIVersion: AgentAPIVersionREST,
+		DashboardURL:    api.AccessURL.String(),
+		WorkspaceProxy:  false,
+		UpgradeMessage:  api.DeploymentValues.CLIUpgradeMessage.String(),
+		DeploymentID:    api.DeploymentID,
+	}
 	api.SiteHandler = site.New(&site.Options{
 		BinFS:             binFS,
 		BinHashes:         binHashes,
@@ -444,6 +453,7 @@ func New(options *Options) *API {
 		OAuth2Configs:     oauthConfigs,
 		DocsURL:           options.DeploymentValues.DocsURL.String(),
 		AppearanceFetcher: &api.AppearanceFetcher,
+		BuildInfo:         buildInfo,
 	})
 	api.SiteHandler.Experiments.Store(&experiments)
 
@@ -735,7 +745,7 @@ func New(options *Options) *API {
 		// All CSP errors will be logged
 		r.Post("/csp/reports", api.logReportCSPViolations)
 
-		r.Get("/buildinfo", buildInfo(api.AccessURL, api.DeploymentValues.CLIUpgradeMessage.String(), api.DeploymentID))
+		r.Get("/buildinfo", buildInfoHandler(buildInfo))
 		// /regions is overridden in the enterprise version
 		r.Group(func(r chi.Router) {
 			r.Use(apiKeyMiddleware)

coderd/deployment.go

@@ -2,9 +2,7 @@ package coderd
 
 import (
 	"net/http"
-	"net/url"
 
-	"github.com/coder/coder/v2/buildinfo"
 	"github.com/coder/coder/v2/coderd/httpapi"
 	"github.com/coder/coder/v2/coderd/rbac"
 	"github.com/coder/coder/v2/codersdk"
@@ -68,17 +66,10 @@ func (api *API) deploymentStats(rw http.ResponseWriter, r *http.Request) {
 // @Tags General
 // @Success 200 {object} codersdk.BuildInfoResponse
 // @Router /buildinfo [get]
-func buildInfo(accessURL *url.URL, upgradeMessage, deploymentID string) http.HandlerFunc {
+func buildInfoHandler(resp codersdk.BuildInfoResponse) http.HandlerFunc {
+	// This is in a handler so that we can generate API docs info.
 	return func(rw http.ResponseWriter, r *http.Request) {
-		httpapi.Write(r.Context(), rw, http.StatusOK, codersdk.BuildInfoResponse{
-			ExternalURL:     buildinfo.ExternalURL(),
-			Version:         buildinfo.Version(),
-			AgentAPIVersion: AgentAPIVersionREST,
-			DashboardURL:    accessURL.String(),
-			WorkspaceProxy:  false,
-			UpgradeMessage:  upgradeMessage,
-			DeploymentID:    deploymentID,
-		})
+		httpapi.Write(r.Context(), rw, http.StatusOK, resp)
 	}
 }
 

site/site.go

@@ -34,7 +34,6 @@ import (
 	"golang.org/x/sync/singleflight"
 	"golang.org/x/xerrors"
 
-	"github.com/coder/coder/v2/buildinfo"
 	"github.com/coder/coder/v2/coderd/appearance"
 	"github.com/coder/coder/v2/coderd/database"
 	"github.com/coder/coder/v2/coderd/database/db2sdk"
@@ -78,6 +77,7 @@ type Options struct {
 	SiteFS            fs.FS
 	OAuth2Configs     *httpmw.OAuth2Configs
 	DocsURL           string
+	BuildInfo         codersdk.BuildInfoResponse
 	AppearanceFetcher *atomic.Pointer[appearance.Fetcher]
 }
 
@@ -149,12 +149,7 @@ func New(opts *Options) *Handler {
 			// static files.
 			OnlyFiles(opts.SiteFS))),
 	)
-
-	buildInfo := codersdk.BuildInfoResponse{
-		ExternalURL: buildinfo.ExternalURL(),
-		Version:     buildinfo.Version(),
-	}
-	buildInfoResponse, err := json.Marshal(buildInfo)
+	buildInfoResponse, err := json.Marshal(opts.BuildInfo)
 	if err != nil {
 		panic("failed to marshal build info: " + err.Error())
 	}