chore: add provisioner api version to /buildinfo (#14446)

coderd/apidoc/docs.go

@@ -9013,6 +9013,10 @@ const docTemplate = `{
                     "description": "ExternalURL references the current Coder version.\nFor production builds, this will link directly to a release. For development builds, this will link to a commit.",
                     "type": "string"
                 },
+                "provisioner_api_version": {
+                    "description": "ProvisionerAPIVersion is the current version of the Provisioner API",
+                    "type": "string"
+                },
                 "telemetry": {
                     "description": "Telemetry is a boolean that indicates whether telemetry is enabled.",
                     "type": "boolean"

coderd/apidoc/swagger.json

@@ -8016,6 +8016,10 @@
 					"description": "ExternalURL references the current Coder version.\nFor production builds, this will link directly to a release. For development builds, this will link to a commit.",
 					"type": "string"
 				},
+				"provisioner_api_version": {
+					"description": "ProvisionerAPIVersion is the current version of the Provisioner API",
+					"type": "string"
+				},
 				"telemetry": {
 					"description": "Telemetry is a boolean that indicates whether telemetry is enabled.",
 					"type": "boolean"

coderd/coderd.go

@@ -489,14 +489,15 @@ func New(options *Options) *API {
 	api.AppearanceFetcher.Store(&f)
 	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,
-		Telemetry:       api.Telemetry.Enabled(),
+		ExternalURL:           buildinfo.ExternalURL(),
+		Version:               buildinfo.Version(),
+		AgentAPIVersion:       AgentAPIVersionREST,
+		ProvisionerAPIVersion: proto.CurrentVersion.String(),
+		DashboardURL:          api.AccessURL.String(),
+		WorkspaceProxy:        false,
+		UpgradeMessage:        api.DeploymentValues.CLIUpgradeMessage.String(),
+		DeploymentID:          api.DeploymentID,
+		Telemetry:             api.Telemetry.Enabled(),
 	}
 	api.SiteHandler = site.New(&site.Options{
 		BinFS:             binFS,