server-init.js

#!/ bin / env node;

if (!process.env.APP_PATH) {
    process.env.APP_PATH = __dirname;
}

if (/bftestrun/.test(process.env.APP_PATH)) {
    process.env.NODE_ENV = 'strider';
}

if (process.env.VCAP_APP_PORT) {
    process.env.NODE_ENV = 'cloudfoundry';
}

if (process.env.OPENSHIFT_INTERNAL_IP) {
    process.env.NODE_ENV = 'production'; //TODO
}

if (!process.env.NODE_ENV) {
    process.env.NODE_ENV = 'production';
}

var ServerInit = function () {

    var
        config = require('config'),
        log = require(process.env.APP_PATH + '/lib/log'),
        Errors = require(process.env.APP_PATH + '/models/errors').Errors;

    //global
    global.error = Errors;

    //global
    global.__t = function (str) {
        return str;
    };

    var
        host = '0.0.0.0',
        port = 0;

    switch (process.env.NODE_ENV) {
        case 'dotcloud':
            var fs = require('fs');
            var env = JSON.parse(fs.readFileSync('environment.json', 'utf-8'));

            host = env.DOTCLOUD_WWW_HTTP_HOST; // override host
            port = env.PORT_WWW; // override port
            config.db.use = 'redis';
            config.db.redis.host = env.DOTCLOUD_DATA_REDIS_HOST; // override redis host
            config.db.redis.port = env.DOTCLOUD_DATA_REDIS_PORT; // override redis port
            config.db.redis.auth = env.DOTCLOUD_DATA_REDIS_PASSWORD; // override redis auth
            break;
        case 'cloudfoundry':
            host = process.env.VCAP_APP_HOST;
            port = process.env.VCAP_APP_PORT;
            var matches = [];

            if (matches = process.env.VMC_REDIS.match(/(.+)\:(.+)/)) {
                config.db.redis.host = matches[1]; // override redis host
                config.db.redis.port = matches[2]; // override redis port
            }
            break;
    }

    //check strider deploy config
    if (process.env.REDIS_PORT) {
        config.db.redis.host = process.env.REDIS_HOST; // override redis host
        config.db.redis.port = process.env.REDIS_PORT; // override redis port
        config.db.redis.auth = process.env.REDIS_PASSWORD; // override redis auth
    }

    if (process.env.OPENSHIFT_INTERNAL_IP) {
        host = process.env.OPENSHIFT_INTERNAL_IP;
        port = process.env.OPENSHIFT_INTERNAL_PORT;
    }

    // terminator === the termination handler.
    function terminator(sig, err) {
        err = err || '';

        if (typeof sig === 'string') {
            log.debug('%s: Received %s (%s)- terminating Node server ...', new Date(Date.now()), sig, err);
            process.exit(1);
        }

        log.debug('%s: Node server stopped.', new Date(Date.now()));
    }

    //handle uncaughtException (dont exit!)
    process.on('uncaughtException', function (err) {
        log.debug('%s: Received uncaughtException: %s', new Date(Date.now()), err);
    });

    //Process on exit and signals.
    process.on('exit', function () {
        terminator();
    });

    ['SIGHUP', 'SIGINT', 'SIGQUIT', 'SIGILL', 'SIGTRAP', 'SIGABRT', 'SIGBUS',
        'SIGFPE', 'SIGUSR1', 'SIGSEGV', 'SIGUSR2', 'SIGPIPE', 'SIGTERM'
    ].forEach(function (element) {
            process.on(element, function (err) {
                terminator(element, err);
            });
        });

    //check if port is set in config
    if (!config.app.port) {
        config.app.port = port || process.env.app_port || process.env.PORT;
    }

    //check if port is set in config
    if (!config.app.host) {
        config.app.host = host;
    }

};

module.exports.ServerInit = ServerInit;