mediacentral-publish/lib/createChartService/index.js

A publish tool for publishing cloud-ux projects

function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }

const { readFileSync, writeFileSync, existsSync, mkdirSync } = require('fs');
const { join } = require('path');
const { execSync } = require('child_process');
const ejs = require('ejs');
const logger = require.main.require('log4js').getLogger(`mediacentral-publish ${__filename}`);

/**
 * Create helm chart for service using template files
 * @param  {Object} options
 * @param  {String} options.targetDir
 * @param  {String} options.chartDir
 * @param  {String} options.projectName
 * @param  {String | Number} options.version
 * @param  {String} options.organization
 * @returns {{file: path}} {file: path}
 */
module.exports = (() => {
    var _ref = _asyncToGenerator(function* ({ targetDir, chartDir, projectName, version: projectVersion, organization: projectOrganization }) {
        logger.trace('Creating Helm Chart with path: ', targetDir, '\nProject Name: ', projectName, '\n Version ', projectVersion, '\nAnd organization: ', projectOrganization);
        const helm_chart_path = join(targetDir, projectName);
        if (!existsSync(helm_chart_path)) {
            mkdirSync(join(targetDir, `${projectName}`));
            mkdirSync(join(targetDir, `${projectName}`, 'templates'));
        }
        const resolveChartPath = function (relativePath) {
            if (chartDir) {
                const chartPath = join(chartDir, relativePath);
                if (existsSync(chartPath)) {
                    logger.info(`Using custom chart template ${relativePath} -> ${chartPath}`);
                    return chartPath;
                }
            }
            const defaultChartPath = join(__dirname, relativePath);
            logger.trace(`Using default chart template ${relativePath} -> ${defaultChartPath}`);
            return defaultChartPath;
        };
        // Templates folder
        let _helpers = ejs.render(readFileSync(resolveChartPath('templates/_helpers.tpl'), 'utf8'), {});
        let config = ejs.render(readFileSync(resolveChartPath('templates/config.yaml'), 'utf8'), { projectName });
        let deployment = ejs.render(readFileSync(resolveChartPath('templates/deployment.yaml'), 'utf8'), {});

        // Chart root
        let chart = ejs.render(readFileSync(resolveChartPath('Chart.yaml'), 'utf8'), { projectName, projectVersion });
        let requirements = ejs.render(readFileSync(resolveChartPath('requirements.yaml'), 'utf8'), {});
        let ignore = ejs.render(readFileSync(resolveChartPath('.helmignore'), 'utf8'), {});
        let values = ejs.render(readFileSync(resolveChartPath('values.yaml'), 'utf8'), { projectName, projectOrganization, projectVersion });

        // Templates folder
        writeFileSync(join(targetDir, `${projectName}`, 'templates/_helpers.tpl'), _helpers, { encoding: 'utf8' });
        writeFileSync(join(targetDir, `${projectName}`, 'templates/config.yaml'), config, { encoding: 'utf8' });
        writeFileSync(join(targetDir, `${projectName}`, 'templates/deployment.yaml'), deployment, { encoding: 'utf8' });

        // Chart root
        writeFileSync(join(targetDir, `${projectName}`, 'Chart.yaml'), chart, { encoding: 'utf8' });
        writeFileSync(join(targetDir, `${projectName}`, '.helmignore'), ignore, { encoding: 'utf8' });
        writeFileSync(join(targetDir, `${projectName}`, 'requirements.yaml'), requirements, { encoding: 'utf8' });
        writeFileSync(join(targetDir, `${projectName}`, 'values.yaml'), values, { encoding: 'utf8' });

        const outputFile = join(targetDir, `${projectName}-${projectVersion}.tgz`);
        try {
            logger.trace(`Creating Helm chart with command:\nhelm package "${join(targetDir, projectName)}" -d "${targetDir}"`);
            const HELM_CHART = execSync(`helm package "${join(targetDir, projectName)}" -d "${targetDir}"`).toString('utf8').trim();
        } catch (e) {
            logger.trace('Error while creating HELM CHART');
            if (!existsSync(outputFile)) {
                throw e;
            }
        }
        return {
            file: outputFile
        };
    });

    return function (_x) {
        return _ref.apply(this, arguments);
    };
})();