test(test tooling): add DamlTestLedger implementation

Primary Changes
---------------
1. Create a test tooling class for DAML AIO Image
Fixes hyperledger-cacti#3435

Signed-off-by: raynato.c.pedrajeta <raynato.c.pedrajeta@accenture.com>

Author: raynatopedrajeta

.cspell.json

@@ -54,6 +54,7 @@
     "Crpc",
     "CSDE",
     "csdetemplate",
+    "daml",
     "data",
     "davecgh",
     "dclm",

packages/cactus-test-tooling/src/main/typescript/daml/daml-test-ledger.ts

@@ -0,0 +1,345 @@
+import Docker, { Container, ContainerInfo } from "dockerode";
+import Joi from "joi";
+import tar from "tar-stream";
+import { EventEmitter } from "events";
+import {
+  LogLevelDesc,
+  Logger,
+  LoggerProvider,
+  Bools,
+} from "@hyperledger/cactus-common";
+import { ITestLedger } from "../i-test-ledger";
+import { Streams } from "../common/streams";
+import { Containers } from "../common/containers";
+
+export interface IDamlTestLedgerOptions {
+  imageVersion?: string;
+  imageName?: string;
+  rpcApiHttpPort?: number;
+  logLevel?: LogLevelDesc;
+  emitContainerLogs?: boolean;
+}
+
+const DEFAULTS = Object.freeze({
+  imageVersion: "2024-09-08T07-40-07-dev-2cc217b7a",
+  imageName: "ghcr.io/hyperledger/cacti-daml-all-in-one",
+  rpcApiHttpPort: 7575,
+});
+
+export const DAML_TEST_LEDGER_DEFAULT_OPTIONS = DEFAULTS;
+
+export const DAML_TEST_LEDGER_OPTIONS_JOI_SCHEMA: Joi.Schema =
+  Joi.object().keys({
+    imageVersion: Joi.string().min(5).required(),
+    imageName: Joi.string().min(1).required(),
+    rpcApiHttpPort: Joi.number()
+      .integer()
+      .positive()
+      .min(1024)
+      .max(65535)
+      .required(),
+  });
+
+export class DamlTestLedger implements ITestLedger {
+  public readonly imageVersion: string;
+  public readonly imageName: string;
+  public readonly rpcApiHttpPort: number;
+  public readonly emitContainerLogs: boolean;
+
+  private readonly log: Logger;
+  private container: Container | undefined;
+  private containerId: string | undefined;
+
+  constructor(public readonly opts?: IDamlTestLedgerOptions) {
+    if (!opts) {
+      throw new TypeError(`DAMLTestLedger#ctor options was falsy.`);
+    }
+    this.imageVersion = opts.imageVersion || DEFAULTS.imageVersion;
+    this.imageName = opts.imageName || DEFAULTS.imageName;
+    this.rpcApiHttpPort = opts.rpcApiHttpPort || DEFAULTS.rpcApiHttpPort;
+
+    this.emitContainerLogs = Bools.isBooleanStrict(opts.emitContainerLogs)
+      ? (opts.emitContainerLogs as boolean)
+      : true;
+
+    this.validateConstructorOptions();
+    const label = "daml-test-ledger";
+    const level = opts.logLevel || "INFO";
+    this.log = LoggerProvider.getOrCreate({ level, label });
+  }
+
+  public getContainer(): Container {
+    const fnTag = "DAMLTestLedger#getContainer()";
+    if (!this.container) {
+      throw new Error(`${fnTag} container not yet started by this instance.`);
+    } else {
+      return this.container;
+    }
+  }
+
+  public getContainerImageName(): string {
+    return `${this.imageName}:${this.imageVersion}`;
+  }
+
+  public async getRpcApiHttpHost(): Promise<string> {
+    const ipAddress = "127.0.0.1";
+    const hostPort: number = await this.getRpcApiPublicPort();
+    return `http://${ipAddress}:${hostPort}`;
+  }
+
+  public async getFileContents(filePath: string): Promise<string> {
+    const response = await this.getContainer().getArchive({
+      path: filePath,
+    });
+    const extract: tar.Extract = tar.extract({ autoDestroy: true });
+
+    return new Promise((resolve, reject) => {
+      let fileContents = "";
+      extract.on("entry", async (header: unknown, stream, next) => {
+        stream.on("error", (err: Error) => {
+          reject(err);
+        });
+        const chunks: string[] = await Streams.aggregate<string>(stream);
+        fileContents += chunks.join("");
+        stream.resume();
+        next();
+      });
+
+      extract.on("finish", () => {
+        resolve(fileContents);
+      });
+
+      response.pipe(extract);
+    });
+  }
+
+  public async start(omitPull = false): Promise<Container> {
+    const imageFqn = this.getContainerImageName();
+
+    if (this.container) {
+      await this.container.stop();
+      await this.container.remove();
+    }
+    const docker = new Docker();
+
+    if (!omitPull) {
+      this.log.debug(`Pulling container image ${imageFqn} ...`);
+      await this.pullContainerImage(imageFqn);
+      this.log.debug(`Pulled ${imageFqn} OK. Starting container...`);
+    }
+
+    return new Promise<Container>((resolve, reject) => {
+      const eventEmitter: EventEmitter = docker.run(
+        imageFqn,
+        [],
+        [],
+        {
+          NetworkMode: "host",
+          ExposedPorts: {
+            "7575/tcp": {}, // DAML http endpoint
+          },
+          HostConfig: {
+            PublishAllPorts: true,
+            PortBindings: {
+              "7575/tcp": [
+                {
+                  HostPort: "7575", //change the default port of docker back to 7575
+                },
+              ],
+            },
+          },
+        },
+        {},
+        (err: unknown) => {
+          if (err) {
+            reject(err);
+          }
+        },
+      );
+
+      eventEmitter.once("start", async (container: Container) => {
+        this.log.debug(`Started container OK. Waiting for healthcheck...`);
+        this.container = container;
+        this.containerId = container.id;
+
+        if (this.emitContainerLogs) {
+          const fnTag = `[${this.getContainerImageName()}]`;
+          await Containers.streamLogs({
+            container: this.getContainer(),
+            tag: fnTag,
+            log: this.log,
+          });
+        }
+
+        try {
+          await this.waitForHealthCheck();
+          this.log.debug(`Healthcheck passing OK.`);
+          resolve(container);
+        } catch (ex) {
+          reject(ex);
+        }
+      });
+    });
+  }
+
+  public async waitForHealthCheck(timeoutMs = 360000): Promise<void> {
+    const fnTag = "DAMLTestLedger#waitForHealthCheck()";
+    const startedAt = Date.now();
+    let isHealthy = false;
+    do {
+      if (Date.now() >= startedAt + timeoutMs) {
+        throw new Error(`${fnTag} timed out (${timeoutMs}ms)`);
+      }
+      const { Status, State } = await this.getContainerInfo();
+      this.log.debug(`ContainerInfo.Status=%o, State=O%`, Status, State);
+      isHealthy = Status.endsWith("(healthy)");
+      if (!isHealthy) {
+        await new Promise((resolve2) => setTimeout(resolve2, 1000));
+      }
+    } while (!isHealthy);
+  }
+
+  public stop(): Promise<unknown> {
+    const fnTag = "DAMLTestLedger#stop()";
+    return new Promise((resolve, reject) => {
+      if (this.container) {
+        this.container.stop({}, (err: unknown, result: unknown) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(result);
+          }
+        });
+      } else {
+        return reject(new Error(`${fnTag} Container was not running.`));
+      }
+    });
+  }
+
+  public destroy(): Promise<unknown> {
+    const fnTag = "DAMLTestLedger#destroy()";
+    if (this.container) {
+      return this.container.remove();
+    } else {
+      const ex = new Error(`${fnTag} Container not found, nothing to destroy.`);
+      return Promise.reject(ex);
+    }
+  }
+
+  protected async getContainerInfo(): Promise<ContainerInfo> {
+    const docker = new Docker();
+    const image = this.getContainerImageName();
+    const containerInfos = await docker.listContainers({});
+
+    let aContainerInfo;
+    if (this.containerId !== undefined) {
+      aContainerInfo = containerInfos.find((ci) => ci.Id === this.containerId);
+    }
+
+    if (aContainerInfo) {
+      return aContainerInfo;
+    } else {
+      throw new Error(`DAMLTestLedger#getContainerInfo() no image "${image}"`);
+    }
+  }
+
+  public async getRpcApiPublicPort(): Promise<number> {
+    const fnTag = "DAMLTestLedger#getRpcApiPublicPort()";
+    const aContainerInfo = await this.getContainerInfo();
+    const { rpcApiHttpPort: thePort } = this;
+    const { Ports: ports } = aContainerInfo;
+
+    if (ports.length < 1) {
+      throw new Error(`${fnTag} no ports exposed or mapped at all`);
+    }
+    const mapping = ports.find((x) => x.PrivatePort === thePort);
+    if (mapping) {
+      if (!mapping.PublicPort) {
+        throw new Error(`${fnTag} port ${thePort} mapped but not public`);
+      } else if (mapping.IP !== "0.0.0.0") {
+        throw new Error(`${fnTag} port ${thePort} mapped to 127.0.0.1`);
+      } else {
+        return mapping.PublicPort;
+      }
+    } else {
+      throw new Error(`${fnTag} no mapping found for ${thePort}`);
+    }
+  }
+  public async getDamlAuthorizationToken(): Promise<string> {
+    const docker = new Docker();
+    const aContainerInfo = await this.getContainerInfo();
+    const containerId = aContainerInfo.Id;
+    const exec = await docker.getContainer(containerId).exec({
+      AttachStdin: false,
+      AttachStdout: true,
+      AttachStderr: true,
+      Tty: true,
+      Cmd: ["/bin/bash", "-c", "cat jwt"], // Command to execute
+    });
+    const stream = await exec.start({});
+
+    return new Promise<string>((resolve, reject) => {
+      let output = "";
+      stream.on("data", (data: Buffer) => {
+        output += data.toString(); // Accumulate the output
+        resolve(output);
+      });
+      stream.on("error", (err: Error) => {
+        reject(err);
+      });
+    });
+  }
+
+  public async getContainerIpAddress(): Promise<string> {
+    const fnTag = "DAMLTestLedger#getContainerIpAddress()";
+    const aContainerInfo = await this.getContainerInfo();
+
+    if (aContainerInfo) {
+      const { NetworkSettings } = aContainerInfo;
+      const networkNames: string[] = Object.keys(NetworkSettings.Networks);
+      if (networkNames.length < 1) {
+        throw new Error(`${fnTag} container not connected to any networks`);
+      } else {
+        return NetworkSettings.Networks[networkNames[0]].IPAddress;
+      }
+    } else {
+      throw new Error(`${fnTag} cannot find image: ${this.imageName}`);
+    }
+  }
+
+  private pullContainerImage(containerNameAndTag: string): Promise<unknown[]> {
+    return new Promise((resolve, reject) => {
+      const docker = new Docker();
+      docker.pull(containerNameAndTag, (pullError: unknown, stream: never) => {
+        if (pullError) {
+          reject(pullError);
+        } else {
+          docker.modem.followProgress(
+            stream,
+            (progressError: unknown, output: unknown[]) => {
+              if (progressError) {
+                reject(progressError);
+              } else {
+                resolve(output);
+              }
+            },
+          );
+        }
+      });
+    });
+  }
+
+  private validateConstructorOptions(): void {
+    const validationResult = DAML_TEST_LEDGER_OPTIONS_JOI_SCHEMA.validate({
+      imageVersion: this.imageVersion,
+      imageName: this.imageName,
+      rpcApiHttpPort: this.rpcApiHttpPort,
+    });
+
+    if (validationResult.error) {
+      throw new Error(
+        `DAMLTestLedger#ctor ${validationResult.error.annotate()}`,
+      );
+    }
+  }
+}

packages/cactus-test-tooling/src/main/typescript/public-api.ts

@@ -13,6 +13,12 @@ export {
   IBesuMpTestLedgerOptions,
 } from "./besu/besu-mp-test-ledger";
 
+export {
+  DamlTestLedger,
+  DAML_TEST_LEDGER_DEFAULT_OPTIONS,
+  IDamlTestLedgerOptions,
+} from "./daml/daml-test-ledger";
+
 export {
   CordaTestLedger,
   ICordaTestLedgerConstructorOptions,