@atomist/sdm-pack-docker/lib/docker/DockerPerBranchDeployer.js

"use strict";
/*
 * Copyright © 2018 Atomist, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
const automation_client_1 = require("@atomist/automation-client");
const sdm_1 = require("@atomist/sdm");
const child_process_1 = require("child_process");
const portfinder = require("portfinder");
/**
 * Deployer that uses `docker run` in order to deploy images produces by the `DockerBuild` goal.
 */
class DockerPerBranchDeployer {
    constructor(options) {
        this.options = options;
        // Already allocated ports
        this.repoBranchToPort = {};
        // Keys are ports: values are containerIds
        this.portToContainer = {};
    }
    deployProject(goalInvocation) {
        return __awaiter(this, void 0, void 0, function* () {
            const branch = goalInvocation.goalEvent.branch;
            let port = this.repoBranchToPort[goalInvocation.id.repo + ":" + branch];
            if (!port) {
                port = yield portfinder.getPortPromise({ /*host: this.options.baseUrl,*/ port: this.options.lowerPort });
                this.repoBranchToPort[goalInvocation.id.repo + ":" + branch] = port;
            }
            const existingContainer = this.portToContainer[port];
            if (!!existingContainer) {
                yield stopAndRemoveContainer(existingContainer);
            }
            else {
                // Check we won't end with a crazy number of child processes
                const presentCount = Object.keys(this.portToContainer)
                    .filter(n => typeof n === "number")
                    .length;
                if (presentCount >= 5) {
                    throw new Error(`Unable to deploy project at ${goalInvocation.id} as limit of 5 has been reached`);
                }
            }
            const name = `${goalInvocation.id.repo}_${branch}`;
            const childProcess = child_process_1.spawn("docker", [
                "run",
                `-p${port}:${this.options.sourcePort}`,
                `--name=${name}`,
                goalInvocation.goalEvent.push.after.image.imageName,
            ], {});
            if (!childProcess.pid) {
                throw new Error("Fatal error deploying using Docker");
            }
            const deployment = {
                childProcess,
                endpoint: `${this.options.baseUrl}:${port}`,
            };
            this.portToContainer[port] = name;
            const newLineDelimitedLog = new sdm_1.DelimitedWriteProgressLogDecorator(goalInvocation.progressLog, "\n");
            childProcess.stdout.on("data", what => newLineDelimitedLog.write(what.toString()));
            childProcess.stderr.on("data", what => newLineDelimitedLog.write(what.toString()));
            let stdout = "";
            let stderr = "";
            return new Promise((resolve, reject) => {
                childProcess.stdout.addListener("data", what => {
                    if (!!what) {
                        stdout += what.toString();
                    }
                    if (this.options.successPatterns.some(successPattern => successPattern.test(stdout))) {
                        resolve(deployment);
                    }
                });
                childProcess.stderr.addListener("data", what => {
                    if (!!what) {
                        stderr += what.toString();
                    }
                });
                childProcess.addListener("exit", () => __awaiter(this, void 0, void 0, function* () {
                    if (this.options.successPatterns.some(successPattern => successPattern.test(stdout))) {
                        resolve(deployment);
                    }
                    else {
                        automation_client_1.logger.error("Docker deployment failure vvvvvvvvvvvvvvvvvvvvvv");
                        automation_client_1.logger.error("stdout:\n%s\nstderr:\n%s\n^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^", stdout, stderr);
                        reject(new Error("Docker deployment failure"));
                    }
                }));
                childProcess.addListener("error", reject);
            });
        });
    }
}
exports.DockerPerBranchDeployer = DockerPerBranchDeployer;
function stopAndRemoveContainer(existingContainer) {
    return sdm_1.execPromise("docker", [
        "rm",
        "-f",
        existingContainer,
    ]);
}
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