nginx-proxy-manager/backend/index.js

136 lines
3.7 KiB
JavaScript

#!/usr/bin/env node
const logger = require('./logger').global;
async function appStart () {
// Create config file db settings if environment variables have been set
await createDbConfigFromEnvironment();
const migrate = require('./migrate');
const setup = require('./setup');
const app = require('./app');
const apiValidator = require('./lib/validator/api');
const internalCertificate = require('./internal/certificate');
const internalIpRanges = require('./internal/ip_ranges');
return migrate.latest()
.then(setup)
.then(() => {
return apiValidator.loadSchemas;
})
.then(internalIpRanges.fetch)
.then(() => {
internalCertificate.initTimer();
internalIpRanges.initTimer();
const server = app.listen(3000, () => {
logger.info('Backend PID ' + process.pid + ' listening on port 3000 ...');
process.on('SIGTERM', () => {
logger.info('PID ' + process.pid + ' received SIGTERM');
server.close(() => {
logger.info('Stopping.');
process.exit(0);
});
});
});
})
.catch((err) => {
logger.error(err.message);
setTimeout(appStart, 1000);
});
}
async function createDbConfigFromEnvironment() {
return new Promise((resolve, reject) => {
const envMysqlHost = process.env.DB_MYSQL_HOST || null;
const envMysqlPort = process.env.DB_MYSQL_PORT || null;
const envMysqlUser = process.env.DB_MYSQL_USER || null;
const envMysqlName = process.env.DB_MYSQL_NAME || null;
let envSqliteFile = process.env.DB_SQLITE_FILE || null;
const fs = require('fs');
const filename = (process.env.NODE_CONFIG_DIR || './config') + '/' + (process.env.NODE_ENV || 'default') + '.json';
let configData = {};
try {
configData = require(filename);
} catch (err) {
// do nothing
}
if (configData.database && configData.database.engine && !configData.database.fromEnv) {
logger.info('Manual db configuration already exists, skipping config creation from environment variables');
resolve();
return;
}
if ((!envMysqlHost || !envMysqlPort || !envMysqlUser || !envMysqlName) && !envSqliteFile){
envSqliteFile = '/data/database.sqlite';
logger.info(`No valid environment variables for database provided, using default SQLite file '${envSqliteFile}'`);
}
if (envMysqlHost && envMysqlPort && envMysqlUser && envMysqlName) {
const newConfig = {
fromEnv: true,
engine: 'mysql',
host: envMysqlHost,
port: envMysqlPort,
user: envMysqlUser,
password: process.env.DB_MYSQL_PASSWORD,
name: envMysqlName,
};
if (JSON.stringify(configData.database) === JSON.stringify(newConfig)) {
// Config is unchanged, skip overwrite
resolve();
return;
}
logger.info('Generating MySQL knex configuration from environment variables');
configData.database = newConfig;
} else {
const newConfig = {
fromEnv: true,
engine: 'knex-native',
knex: {
client: 'sqlite3',
connection: {
filename: envSqliteFile
},
useNullAsDefault: true
}
};
if (JSON.stringify(configData.database) === JSON.stringify(newConfig)) {
// Config is unchanged, skip overwrite
resolve();
return;
}
logger.info('Generating SQLite knex configuration');
configData.database = newConfig;
}
// Write config
fs.writeFile(filename, JSON.stringify(configData, null, 2), (err) => {
if (err) {
logger.error('Could not write db config to config file: ' + filename);
reject(err);
} else {
logger.debug('Wrote db configuration to config file: ' + filename);
resolve();
}
});
});
}
try {
appStart();
} catch (err) {
logger.error(err.message, err);
process.exit(1);
}