mirror of
https://gitlab.com/openstapps/openstapps.git
synced 2025-12-11 08:46:16 +00:00
84 lines
2.9 KiB
TypeScript
84 lines
2.9 KiB
TypeScript
/*
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* Copyright (C) 2022 StApps
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import {Logger} from '@openstapps/logger';
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import {execSync} from 'child_process';
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import * as Dockerode from 'dockerode';
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import mustache from 'mustache';
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import {asyncReadFile, asyncWriteFile} from './common.js';
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import {getContainers, getTemplateView} from './main.js';
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/* eslint-disable unicorn/prefer-module */
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// handle unhandled promise rejections
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process.on('unhandledRejection', async error => {
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await Logger.error(error);
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process.exit(1);
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});
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let containerHashCache = '';
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let configHashCache = '';
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const delay = (ms: number) => new Promise(resolve => setTimeout(resolve, ms));
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/**
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* Reads the container information from the docker socket and updates the nginx config if necessary
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*/
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async function updateNginxConfig() {
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const containers = await getContainers();
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const containerHash = containers
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.map((container: Dockerode.ContainerInfo) => {
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return container.Id;
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})
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.join(',');
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delete require.cache[require.resolve('config')];
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// eslint-disable-next-line @typescript-eslint/no-var-requires
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const configFile = require('config');
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const configHash = JSON.stringify(configFile);
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// if containers changed -> write config file, reload nginx
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if (containerHash !== containerHashCache || configHash !== configHashCache) {
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Logger.log('Generating new NGINX configuration');
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Logger.log('Waiting for Docker network to settle...');
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await delay(10_000);
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// render nginx config file
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const nginxConfig = mustache.render(
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await asyncReadFile('nginx.conf.template', 'utf8'),
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await getTemplateView(containers),
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);
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containerHashCache = containerHash;
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configHashCache = configHash;
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Logger.log(`Writing new config file "${configFile.output}"`);
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// overwrite nginx config file with our rendered one
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await asyncWriteFile(configFile.output, nginxConfig, 'utf8');
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Logger.log('Executing "nginx -s reload" to tell nginx to reload the configuration file');
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execSync('nginx -s reload');
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}
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// set timeout to update configuration again in 30s
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setTimeout(updateNginxConfig, 30_000);
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}
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// start the process that checks the docker socket periodically
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// eslint-disable-next-line unicorn/prefer-top-level-await
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updateNginxConfig();
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