125 lines
3.8 KiB
JavaScript
Executable File
125 lines
3.8 KiB
JavaScript
Executable File
/*
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* Windshaft-CartoDB
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* ===============
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*
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* ./app.js [environment]
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*
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* environments: [development, production]
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*/
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var path = require('path');
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var os = require('os');
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var fs = require('fs');
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var RedisPool = require('redis-mpool');
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var _ = require('underscore');
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var ENV;
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if ( process.argv[2] ) {
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ENV = process.argv[2];
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} else if ( process.env.NODE_ENV ) {
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ENV = process.env.NODE_ENV;
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} else {
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ENV = 'development';
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}
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process.env.NODE_ENV = ENV;
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// sanity check
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if (ENV != 'development' && ENV != 'production' && ENV != 'staging' ){
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console.error("\nnode app.js [environment]");
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console.error("environments: development, production, staging\n");
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process.exit(1);
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}
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// set environment specific variables
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global.environment = require(__dirname + '/config/environments/' + ENV);
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global.environment.api_hostname = require('os').hostname().split('.')[0];
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global.log4js = require('log4js');
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var log4js_config = {
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appenders: [],
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replaceConsole:true
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};
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if (global.environment.uv_threadpool_size) {
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process.env.UV_THREADPOOL_SIZE = global.environment.uv_threadpool_size;
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}
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if ( global.environment.log_filename ) {
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var logdir = path.dirname(global.environment.log_filename);
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// See cwd inlog4js.configure call below
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logdir = path.resolve(__dirname, logdir);
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if ( ! fs.existsSync(logdir) ) {
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console.error("Log filename directory does not exist: " + logdir);
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process.exit(1);
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}
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console.log("Logs will be written to " + global.environment.log_filename);
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log4js_config.appenders.push(
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{ type: "file", filename: global.environment.log_filename }
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);
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} else {
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log4js_config.appenders.push(
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{ type: "console", layout: { type:'basic' } }
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);
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}
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global.log4js.configure(log4js_config, { cwd: __dirname });
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global.logger = global.log4js.getLogger();
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var redisOpts = _.extend(global.environment.redis, { name: 'windshaft' }),
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redisPool = new RedisPool(redisOpts);
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// Perform keyword substitution in statsd
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// See https://github.com/CartoDB/Windshaft-cartodb/issues/153
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if ( global.environment.statsd ) {
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if ( global.environment.statsd.prefix ) {
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var host_token = os.hostname().split('.').reverse().join('.');
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global.environment.statsd.prefix = global.environment.statsd.prefix.replace(/:host/, host_token);
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}
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}
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// Include cartodb_windshaft only _after_ the "global" variable is set
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// See https://github.com/Vizzuality/Windshaft-cartodb/issues/28
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var cartodbWindshaft = require('./lib/cartodb/server'),
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serverOptions = require('./lib/cartodb/server_options');
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var ws = cartodbWindshaft(serverOptions);
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if (global.statsClient) {
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redisPool.on('status', function(status) {
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var keyPrefix = 'windshaft.redis-pool.' + status.name + '.db' + status.db + '.';
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global.statsClient.gauge(keyPrefix + 'count', status.count);
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global.statsClient.gauge(keyPrefix + 'unused', status.unused);
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global.statsClient.gauge(keyPrefix + 'waiting', status.waiting);
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});
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}
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// Maximum number of connections for one process
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// 128 is a good number if you have up to 1024 filedescriptors
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// 4 is good if you have max 32 filedescriptors
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// 1 is good if you have max 16 filedescriptors
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ws.maxConnections = global.environment.maxConnections || 128;
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ws.listen(global.environment.port, global.environment.host);
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var version = require("./package").version;
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ws.on('listening', function() {
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console.log(
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"Windshaft tileserver %s started on %s:%s (%s)",
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version, global.environment.host, global.environment.port, ENV
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);
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});
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process.on('SIGHUP', function() {
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global.log4js.clearAndShutdownAppenders(function() {
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global.log4js.configure(log4js_config);
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global.logger = global.log4js.getLogger();
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console.log('Log files reloaded');
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});
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});
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process.on('uncaughtException', function(err) {
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global.logger.error('Uncaught exception: ' + err.stack);
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});
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