ba39ed9ad4
- [sdk/nodejs] - Allow returning failures from Call in the provider without setting result outputs. - [sdk/go] - Allow specifying Call failures from the provider. - Add tests that return failures from Call.
674 lines
27 KiB
TypeScript
674 lines
27 KiB
TypeScript
// Copyright 2016-2020, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import * as minimist from "minimist";
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import * as path from "path";
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import * as grpc from "@grpc/grpc-js";
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import { Provider } from "./provider";
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import * as log from "../log";
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import { Inputs, Output, output } from "../output";
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import * as resource from "../resource";
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import * as runtime from "../runtime";
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import { version } from "../version";
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import { parseArgs } from "./internals";
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const requireFromString = require("require-from-string");
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const anyproto = require("google-protobuf/google/protobuf/any_pb.js");
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const emptyproto = require("google-protobuf/google/protobuf/empty_pb.js");
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const structproto = require("google-protobuf/google/protobuf/struct_pb.js");
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const provproto = require("../proto/provider_pb.js");
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const provrpc = require("../proto/provider_grpc_pb.js");
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const plugproto = require("../proto/plugin_pb.js");
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const statusproto = require("../proto/status_pb.js");
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class Server implements grpc.UntypedServiceImplementation {
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readonly engineAddr: string;
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readonly provider: Provider;
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readonly uncaughtErrors: Set<Error>;
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/** Queue of construct calls. */
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constructCallQueue = Promise.resolve();
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constructor(engineAddr: string, provider: Provider, uncaughtErrors: Set<Error>) {
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this.engineAddr = engineAddr;
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this.provider = provider;
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this.uncaughtErrors = uncaughtErrors;
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}
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// Satisfy the grpc.UntypedServiceImplementation interface.
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[name: string]: any;
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// Misc. methods
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public cancel(call: any, callback: any): void {
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callback(undefined, new emptyproto.Empty());
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}
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public getPluginInfo(call: any, callback: any): void {
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const resp: any = new plugproto.PluginInfo();
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resp.setVersion(this.provider.version);
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callback(undefined, resp);
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}
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public getSchema(call: any, callback: any): void {
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const req: any = call.request;
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if (req.getVersion() !== 0) {
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callback(new Error(`unsupported schema version ${req.getVersion()}`), undefined);
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}
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const resp: any = new provproto.GetSchemaResponse();
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resp.setSchema(this.provider.schema || "{}");
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callback(undefined, resp);
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}
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// Config methods
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public checkConfig(call: any, callback: any): void {
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callback({
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code: grpc.status.UNIMPLEMENTED,
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details: "Not yet implemented: CheckConfig",
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}, undefined);
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}
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public diffConfig(call: any, callback: any): void {
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callback({
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code: grpc.status.UNIMPLEMENTED,
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details: "Not yet implemented: DiffConfig",
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}, undefined);
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}
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public configure(call: any, callback: any): void {
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const resp = new provproto.ConfigureResponse();
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resp.setAcceptsecrets(true);
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resp.setAcceptresources(true);
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resp.setAcceptoutputs(true);
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callback(undefined, resp);
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}
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// CRUD resource methods
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public async check(call: any, callback: any): Promise<void> {
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try {
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const req: any = call.request;
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const resp = new provproto.CheckResponse();
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const olds = req.getOlds().toJavaScript();
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const news = req.getNews().toJavaScript();
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let inputs: any = news;
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let failures: any[] = [];
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if (this.provider.check) {
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const result = await this.provider.check(req.getUrn(), olds, news);
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if (result.inputs) {
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inputs = result.inputs;
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}
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if (result.failures) {
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failures = result.failures;
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}
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} else {
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// If no check method was provided, propagate the new inputs as-is.
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inputs = news;
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}
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resp.setInputs(structproto.Struct.fromJavaScript(inputs));
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if (failures.length !== 0) {
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const failureList = [];
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for (const f of failures) {
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const failure = new provproto.CheckFailure();
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failure.setProperty(f.property);
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failure.setReason(f.reason);
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failureList.push(failure);
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}
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resp.setFailuresList(failureList);
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}
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callback(undefined, resp);
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} catch (e) {
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console.error(`${e}: ${e.stack}`);
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callback(e, undefined);
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}
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}
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public async diff(call: any, callback: any): Promise<void> {
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try {
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const req: any = call.request;
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const resp = new provproto.DiffResponse();
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const olds = req.getOlds().toJavaScript();
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const news = req.getNews().toJavaScript();
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if (this.provider.diff) {
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const result: any = await this.provider.diff(req.getId(), req.getUrn(), olds, news);
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if (result.changes === true) {
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resp.setChanges(provproto.DiffResponse.DiffChanges.DIFF_SOME);
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} else if (result.changes === false) {
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resp.setChanges(provproto.DiffResponse.DiffChanges.DIFF_NONE);
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} else {
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resp.setChanges(provproto.DiffResponse.DiffChanges.DIFF_UNKNOWN);
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}
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if (result.replaces && result.replaces.length !== 0) {
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resp.setReplacesList(result.replaces);
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}
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if (result.deleteBeforeReplace) {
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resp.setDeletebeforereplace(result.deleteBeforeReplace);
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}
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}
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callback(undefined, resp);
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} catch (e) {
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console.error(`${e}: ${e.stack}`);
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callback(e, undefined);
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}
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}
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public async create(call: any, callback: any): Promise<void> {
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try {
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const req: any = call.request;
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if (!this.provider.create) {
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callback(new Error(`unknown resource type ${req.getUrn()}`), undefined);
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return;
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}
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const resp = new provproto.CreateResponse();
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const props = req.getProperties().toJavaScript();
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const result = await this.provider.create(req.getUrn(), props);
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resp.setId(result.id);
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resp.setProperties(structproto.Struct.fromJavaScript(result.outs));
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callback(undefined, resp);
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} catch (e) {
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const response = grpcResponseFromError(e);
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return callback(/*err:*/ response, /*value:*/ null, /*metadata:*/ response.metadata);
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}
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}
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public async read(call: any, callback: any): Promise<void> {
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try {
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const req: any = call.request;
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const resp = new provproto.ReadResponse();
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const id = req.getId();
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const props = req.getProperties().toJavaScript();
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if (this.provider.read) {
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const result: any = await this.provider.read(id, req.getUrn(), props);
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resp.setId(result.id);
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resp.setProperties(structproto.Struct.fromJavaScript(result.props));
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} else {
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// In the event of a missing read, simply return back the input state.
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resp.setId(id);
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resp.setProperties(req.getProperties());
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}
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callback(undefined, resp);
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} catch (e) {
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console.error(`${e}: ${e.stack}`);
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callback(e, undefined);
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}
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}
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public async update(call: any, callback: any): Promise<void> {
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try {
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const req: any = call.request;
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const resp = new provproto.UpdateResponse();
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const olds = req.getOlds().toJavaScript();
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const news = req.getNews().toJavaScript();
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let result: any = {};
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if (this.provider.update) {
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result = await this.provider.update(req.getId(), req.getUrn(), olds, news) || {};
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}
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resp.setProperties(structproto.Struct.fromJavaScript(result.outs));
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callback(undefined, resp);
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} catch (e) {
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const response = grpcResponseFromError(e);
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return callback(/*err:*/ response, /*value:*/ null, /*metadata:*/ response.metadata);
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}
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}
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public async delete(call: any, callback: any): Promise<void> {
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try {
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const req: any = call.request;
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const props: any = req.getProperties().toJavaScript();
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if (this.provider.delete) {
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await this.provider.delete(req.getId(), req.getUrn(), props);
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}
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callback(undefined, new emptyproto.Empty());
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} catch (e) {
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console.error(`${e}: ${e.stack}`);
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callback(e, undefined);
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}
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}
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public async construct(call: any, callback: any): Promise<void> {
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// Serialize invocations of `construct` and `call` so that each call runs one after another, avoiding concurrent
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// runs. We do this because `construct` and `call` modify global state to reset the SDK's runtime options.
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// This is a short-term workaround to provide correctness, but likely isn't sustainable long-term due to the
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// limits it places on parallelism. We will likely want to investigate if it's possible to run each invocation
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// in its own context, possibly using Node's `createContext` API to avoid modifying global state:
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// https://nodejs.org/api/vm.html#vm_vm_createcontext_contextobject_options
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const res = this.constructCallQueue.then(() => this.constructImpl(call, callback));
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/* eslint-disable no-empty,no-empty-function,@typescript-eslint/no-empty-function */
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this.constructCallQueue = res.catch(() => {});
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return res;
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}
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async constructImpl(call: any, callback: any): Promise<void> {
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// given that construct calls are serialized, we can attach an uncaught handler to pick up exceptions
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// in underlying user code. When we catch the error, we need to respond to the gRPC request with the error
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// to avoid a hang.
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const uncaughtHandler = (err: Error) => {
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if (!this.uncaughtErrors.has(err)) {
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this.uncaughtErrors.add(err);
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}
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// bubble the uncaught error in the user code back and terminate the outstanding gRPC request.
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callback(err, undefined);
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};
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process.on("uncaughtException", uncaughtHandler);
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// @ts-ignore 'unhandledRejection' will almost always invoke uncaughtHandler with an Error. so
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// just suppress the TS strictness here.
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process.on("unhandledRejection", uncaughtHandler);
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try {
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const req: any = call.request;
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const type = req.getType();
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const name = req.getName();
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if (!this.provider.construct) {
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callback(new Error(`unknown resource type ${type}`), undefined);
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return;
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}
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configureRuntime(req, this.engineAddr);
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const inputs = await deserializeInputs(req.getInputs(), req.getInputdependenciesMap());
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// Rebuild the resource options.
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const dependsOn: resource.Resource[] = [];
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for (const urn of req.getDependenciesList()) {
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dependsOn.push(new resource.DependencyResource(urn));
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}
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const providers: Record<string, resource.ProviderResource> = {};
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const rpcProviders = req.getProvidersMap();
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if (rpcProviders) {
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for (const [pkg, ref] of rpcProviders.entries()) {
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providers[pkg] = createProviderResource(ref);
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}
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}
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const opts: resource.ComponentResourceOptions = {
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aliases: req.getAliasesList(),
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dependsOn: dependsOn,
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protect: req.getProtect(),
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providers: providers,
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parent: req.getParent() ? new resource.DependencyResource(req.getParent()) : undefined,
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};
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const result = await this.provider.construct(name, type, inputs, opts);
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const resp = new provproto.ConstructResponse();
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resp.setUrn(await output(result.urn).promise());
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const [state, stateDependencies] = await runtime.serializeResourceProperties(`construct(${type}, ${name})`, result.state);
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const stateDependenciesMap = resp.getStatedependenciesMap();
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for (const [key, resources] of stateDependencies) {
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const deps = new provproto.ConstructResponse.PropertyDependencies();
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deps.setUrnsList(await Promise.all(Array.from(resources).map(r => r.urn.promise())));
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stateDependenciesMap.set(key, deps);
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}
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resp.setState(structproto.Struct.fromJavaScript(state));
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// Wait for RPC operations to complete.
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await runtime.waitForRPCs();
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callback(undefined, resp);
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} catch (e) {
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console.error(`${e}: ${e.stack}`);
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callback(e, undefined);
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} finally {
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// remove these uncaught handlers that are specific to this gRPC callback context
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process.off("uncaughtException", uncaughtHandler);
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process.off("unhandledRejection", uncaughtHandler);
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}
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}
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public async call(call: any, callback: any): Promise<void> {
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// Serialize invocations of `construct` and `call` so that each call runs one after another, avoiding concurrent
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// runs. We do this because `construct` and `call` modify global state to reset the SDK's runtime options.
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// This is a short-term workaround to provide correctness, but likely isn't sustainable long-term due to the
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// limits it places on parallelism. We will likely want to investigate if it's possible to run each invocation
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// in its own context, possibly using Node's `createContext` API to avoid modifying global state:
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// https://nodejs.org/api/vm.html#vm_vm_createcontext_contextobject_options
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const res = this.constructCallQueue.then(() => this.callImpl(call, callback));
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/* eslint-disable no-empty, no-empty-function, @typescript-eslint/no-empty-function */
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this.constructCallQueue = res.catch(() => {});
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return res;
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}
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async callImpl(call: any, callback: any): Promise<void> {
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// given that call calls are serialized, we can attach an uncaught handler to pick up exceptions
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// in underlying user code. When we catch the error, we need to respond to the gRPC request with the error
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// to avoid a hang.
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const uncaughtHandler = (err: Error) => {
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if (!this.uncaughtErrors.has(err)) {
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this.uncaughtErrors.add(err);
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}
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// bubble the uncaught error in the user code back and terminate the outstanding gRPC request.
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callback(err, undefined);
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};
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process.on("uncaughtException", uncaughtHandler);
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// @ts-ignore 'unhandledRejection' will almost always invoke uncaughtHandler with an Error. so
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// just suppress the TS strictness here.
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process.on("unhandledRejection", uncaughtHandler);
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try {
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const req: any = call.request;
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if (!this.provider.call) {
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callback(new Error(`unknown function ${req.getTok()}`), undefined);
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return;
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}
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configureRuntime(req, this.engineAddr);
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const args = await deserializeInputs(req.getArgs(), req.getArgdependenciesMap());
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const result = await this.provider.call(req.getTok(), args);
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const resp = new provproto.CallResponse();
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if (result.outputs) {
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const [ret, retDependencies] =
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await runtime.serializeResourceProperties(`call(${req.getTok()})`, result.outputs);
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const returnDependenciesMap = resp.getReturndependenciesMap();
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for (const [key, resources] of retDependencies) {
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const deps = new provproto.CallResponse.ReturnDependencies();
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deps.setUrnsList(await Promise.all(Array.from(resources).map(r => r.urn.promise())));
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returnDependenciesMap.set(key, deps);
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}
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resp.setReturn(structproto.Struct.fromJavaScript(ret));
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}
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if ((result.failures || []).length !== 0) {
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const failureList = [];
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for (const f of result.failures!) {
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const failure = new provproto.CheckFailure();
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failure.setProperty(f.property);
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failure.setReason(f.reason);
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failureList.push(failure);
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}
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resp.setFailuresList(failureList);
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}
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// Wait for RPC operations to complete.
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await runtime.waitForRPCs();
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callback(undefined, resp);
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} catch (e) {
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console.error(`${e}: ${e.stack}`);
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callback(e, undefined);
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} finally {
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// remove these uncaught handlers that are specific to this gRPC callback context
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process.off("uncaughtException", uncaughtHandler);
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process.off("unhandledRejection", uncaughtHandler);
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}
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}
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public async invoke(call: any, callback: any): Promise<void> {
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try {
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const req: any = call.request;
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if (!this.provider.invoke) {
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callback(new Error(`unknown function ${req.getTok()}`), undefined);
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return;
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}
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const args: any = req.getArgs().toJavaScript();
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const result = await this.provider.invoke(req.getTok(), args);
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const resp = new provproto.InvokeResponse();
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resp.setReturn(structproto.Struct.fromJavaScript(result.outputs));
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if ((result.failures || []).length !== 0) {
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const failureList = [];
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for (const f of result.failures!) {
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const failure = new provproto.CheckFailure();
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failure.setProperty(f.property);
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failure.setReason(f.reason);
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failureList.push(failure);
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}
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resp.setFailuresList(failureList);
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}
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callback(undefined, resp);
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} catch (e) {
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console.error(`${e}: ${e.stack}`);
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callback(e, undefined);
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}
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}
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public async streamInvoke(call: any, callback: any): Promise<void> {
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callback({
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code: grpc.status.UNIMPLEMENTED,
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details: "Not yet implemented: StreamInvoke",
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}, undefined);
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}
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}
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function configureRuntime(req: any, engineAddr: string) {
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// NOTE: these are globals! We should ensure that all settings are identical between calls, and eventually
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// refactor so we can avoid the global state.
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runtime.resetOptions(req.getProject(), req.getStack(), req.getParallel(), engineAddr,
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req.getMonitorendpoint(), req.getDryrun());
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const pulumiConfig: {[key: string]: string} = {};
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const rpcConfig = req.getConfigMap();
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if (rpcConfig) {
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for (const [k, v] of rpcConfig.entries()) {
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pulumiConfig[k] = v;
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}
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}
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runtime.setAllConfig(pulumiConfig, req.getConfigsecretkeysList());
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}
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/**
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* deserializeInputs deserializes the inputs struct and applies appropriate dependencies.
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* @internal
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*/
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export async function deserializeInputs(inputsStruct: any, inputDependencies: any): Promise<Inputs> {
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const result: Inputs = {};
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const deserializedInputs = runtime.deserializeProperties(inputsStruct);
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for (const k of Object.keys(deserializedInputs)) {
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const input = deserializedInputs[k];
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const isSecret = runtime.isRpcSecret(input);
|
|
const depsUrns: resource.URN[] = inputDependencies.get(k)?.getUrnsList() ?? [];
|
|
|
|
if (!isSecret && (depsUrns.length === 0 || containsOutputs(input) || await isResourceReference(input, depsUrns))) {
|
|
// If the input isn't a secret and either doesn't have any dependencies, already contains Outputs (from
|
|
// deserialized output values), or is a resource reference, then we can return it directly without
|
|
// wrapping it as an output.
|
|
result[k] = input;
|
|
} else {
|
|
// Otherwise, wrap it in an output so we can handle secrets and/or track dependencies.
|
|
// Note: If the value is or contains an unknown value, the Output will mark its value as
|
|
// unknown automatically, so we just pass true for isKnown here.
|
|
const deps = depsUrns.map(depUrn => new resource.DependencyResource(depUrn));
|
|
result[k] = new Output(deps, Promise.resolve(runtime.unwrapRpcSecret(input)), Promise.resolve(true),
|
|
Promise.resolve(isSecret), Promise.resolve([]));
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the input is a resource reference.
|
|
*/
|
|
async function isResourceReference(input: any, deps: string[]): Promise<boolean> {
|
|
return resource.Resource.isInstance(input)
|
|
&& deps.length === 1
|
|
&& deps[0] === await input.urn.promise();
|
|
}
|
|
|
|
/**
|
|
* Returns true if the deserialized input contains Outputs (deeply), excluding properties of Resources.
|
|
* @internal
|
|
*/
|
|
export function containsOutputs(input: any): boolean {
|
|
if (Array.isArray(input)) {
|
|
for (const e of input) {
|
|
if (containsOutputs(e)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
else if (typeof input === "object") {
|
|
if (Output.isInstance(input)) {
|
|
return true;
|
|
}
|
|
else if (resource.Resource.isInstance(input)) {
|
|
// Do not drill into instances of Resource because they will have properties that are
|
|
// instances of Output (e.g. urn, id, etc.) and we're only looking for instances of
|
|
// Output that aren't associated with a Resource.
|
|
return false;
|
|
}
|
|
|
|
for (const k of Object.keys(input)) {
|
|
if (containsOutputs(input[k])) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// grpcResponseFromError creates a gRPC response representing an error from a dynamic provider's
|
|
// resource. This is typically either a creation error, in which the API server has (virtually)
|
|
// rejected the resource, or an initialization error, where the API server has accepted the
|
|
// resource, but it failed to initialize (e.g., the app code is continually crashing and the
|
|
// resource has failed to become alive).
|
|
function grpcResponseFromError(e: {id: string; properties: any; message: string; reasons?: string[]}) {
|
|
// Create response object.
|
|
const resp = new statusproto.Status();
|
|
resp.setCode(grpc.status.UNKNOWN);
|
|
resp.setMessage(e.message);
|
|
|
|
const metadata = new grpc.Metadata();
|
|
if (e.id) {
|
|
// Object created successfully, but failed to initialize. Pack initialization failure into
|
|
// details.
|
|
const detail = new provproto.ErrorResourceInitFailed();
|
|
detail.setId(e.id);
|
|
detail.setProperties(structproto.Struct.fromJavaScript(e.properties || {}));
|
|
detail.setReasonsList(e.reasons || []);
|
|
|
|
const details = new anyproto.Any();
|
|
details.pack(detail.serializeBinary(), "pulumirpc.ErrorResourceInitFailed");
|
|
|
|
// Add details to metadata.
|
|
resp.addDetails(details);
|
|
// NOTE: `grpc-status-details-bin` is a magic field that allows us to send structured
|
|
// protobuf data as an error back through gRPC. This notion of details is a first-class in
|
|
// the Go gRPC implementation, and the nodejs implementation has not quite caught up to it,
|
|
// which is why it's cumbersome here.
|
|
metadata.add("grpc-status-details-bin", Buffer.from(resp.serializeBinary()));
|
|
}
|
|
|
|
return {
|
|
code: grpc.status.UNKNOWN,
|
|
message: e.message,
|
|
metadata: metadata,
|
|
};
|
|
}
|
|
|
|
export async function main(provider: Provider, args: string[]) {
|
|
// We track all uncaught errors here. If we have any, we will make sure we always have a non-0 exit
|
|
// code.
|
|
const uncaughtErrors = new Set<Error>();
|
|
const uncaughtHandler = (err: Error) => {
|
|
if (!uncaughtErrors.has(err)) {
|
|
uncaughtErrors.add(err);
|
|
// Use `pulumi.log.error` here to tell the engine there was a fatal error, which should
|
|
// stop processing subsequent resource operations.
|
|
log.error(err.stack || err.message || ("" + err));
|
|
}
|
|
};
|
|
|
|
process.on("uncaughtException", uncaughtHandler);
|
|
// @ts-ignore 'unhandledRejection' will almost always invoke uncaughtHandler with an Error. so just
|
|
// suppress the TS strictness here.
|
|
process.on("unhandledRejection", uncaughtHandler);
|
|
process.on("exit", (code: number) => {
|
|
// If there were any uncaught errors at all, we always want to exit with an error code.
|
|
if (code === 0 && uncaughtErrors.size > 0) {
|
|
process.exitCode = 1;
|
|
}
|
|
});
|
|
|
|
const parsedArgs = parseArgs(args);
|
|
|
|
// The program requires a single argument: the address of the RPC endpoint for the engine. It
|
|
// optionally also takes a second argument, a reference back to the engine, but this may be missing.
|
|
if (parsedArgs === undefined) {
|
|
console.error("fatal: Missing <engine> address");
|
|
process.exit(-1);
|
|
return;
|
|
}
|
|
const engineAddr: string = parsedArgs.engineAddress;
|
|
|
|
// Finally connect up the gRPC client/server and listen for incoming requests.
|
|
const server = new grpc.Server({
|
|
"grpc.max_receive_message_length": runtime.maxRPCMessageSize,
|
|
});
|
|
server.addService(provrpc.ResourceProviderService, new Server(engineAddr, provider, uncaughtErrors));
|
|
const port: number = await new Promise<number>((resolve, reject) => {
|
|
server.bindAsync(`0.0.0.0:0`, grpc.ServerCredentials.createInsecure(), (err, p) => {
|
|
if (err) {
|
|
reject(err);
|
|
} else {
|
|
resolve(p);
|
|
}
|
|
});
|
|
});
|
|
server.start();
|
|
|
|
// Emit the address so the monitor can read it to connect. The gRPC server will keep the message loop alive.
|
|
console.log(port);
|
|
}
|
|
|
|
/**
|
|
* Rehydrate the provider reference into a registered ProviderResource,
|
|
* otherwise return an instance of DependencyProviderResource.
|
|
*/
|
|
function createProviderResource(ref: string): resource.ProviderResource {
|
|
const [urn, _] = resource.parseResourceReference(ref);
|
|
const urnParts = urn.split("::");
|
|
const qualifiedType = urnParts[2];
|
|
const urnName = urnParts[3];
|
|
|
|
const type = qualifiedType.split("$").pop()!;
|
|
const typeParts = type.split(":");
|
|
const typName = typeParts.length > 2 ? typeParts[2] : "";
|
|
|
|
const resourcePackage = runtime.getResourcePackage(typName, /*version:*/ "");
|
|
if (resourcePackage) {
|
|
return resourcePackage.constructProvider(urnName, type, urn);
|
|
}
|
|
return new resource.DependencyProviderResource(ref);
|
|
}
|