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server.js
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server.js
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'use strict';
var argh = require('argh');
var parseArgs = require('minimist');
var bunyan = require('bunyan');
var jsonOverride = require('json-override');
var levelup = require('levelup');
var path = require('path');
var pkgjson = require('./package.json');
var restify = require('restify');
var routes = require('./lib/routes');
var sh = require('execSync');
var _Error = require('error-plus');
var Etcd = require('node-etcd');
var argv = parseArgs(process.argv);
if (argv.help || argv.h) {
console.log([
'Usage: ./bin/' + pkgjson.name + ' [--port] [--loglevel]',
'Starts ' + pkgjson.name + ' with the specified configuration',
'--port port to run on (default: 9002)',
'--loglevel log level (default: info)',
'--dbname database name (default: db)',
'--svcdir URL for paz service-directory service (default: localhost:9001)',
'--ssh-host host and port where fleetctl can be access on CoreOS host',
'--ssh-user username to use for SSH',
'--ssh-key SSH key to use for connecting to fleetctl',
'--ssh-port SSH port to use for connecting to fleetctl',
'--gen-key If true, generate a keypair and post the public key to etcd; the private key will be used as if passed to --ssh-key (default: false)',
'--etcd-pubkey-key The name of the key against which to store the generated public key (default: /paz/config/scheduler/_pubkey)',
'--etcd-endpoint URL of the etcd endpoint (default: 172.17.9.101:2379)',
'--cors set whether to enable CORS or not (default: true)',
'--nodeploy disable deployments, for testing (default: false)'
].join('\n'));
process.exit();
}
function asBoolean (s) {
if (typeof s === 'boolean') {
return s;
}
return s === 'true';
}
var APP_NAME = pkgjson.name.toUpperCase().replace('-', '_');
var opts = {
'port':
+(argv.port || process.env[APP_NAME + '_PORT'] || '9002'),
'loglevel':
argv.loglevel || process.env[APP_NAME + '_LOGLEVEL'] || 'info',
'dbname': argv.dbname || process.env[APP_NAME + '_DBNAME'] || 'db',
'svcdir':
argv.svcdir || process.env[APP_NAME + '_SVCDIR_URL'] ||
'localhost:9001',
'ssh-host':
argv['ssh-host'] || process.env[APP_NAME + '_SSH_HOST'] || 'localhost',
'ssh-key':
argv['ssh-key'] || process.env[APP_NAME + '_SSH_KEY'] || null,
'ssh-port':
argv['ssh-port'] || process.env[APP_NAME + '_SSH_PORT'] || null,
'gen-key':
argv['gen-key'] || asBoolean(process.env[APP_NAME + '_GEN_KEY']) || false,
'etcd-pubkey-key':
argv['etcd-pubkey-key'] || process.env[APP_NAME + '_ETCD_PUBKEY_KEY'] || '/paz/config/scheduler/_pubkey',
'etcd-endpoint':
argv['etcd-endpoint'] || process.env[APP_NAME + '_ETCD_ENDPOINT'] || '127.0.0.1:2379',
'cors': argh.argv.cors ||
process.env[APP_NAME + '_CORS'] ||
true,
'nodeploy':
argv.nodeploy || asBoolean(process.env[APP_NAME + '_NODEPLOY']) || false
};
if (opts.cors === 'true') {
opts.cors = true;
}
if (opts.cors === 'false') {
opts.cors = false;
}
console.log(JSON.stringify(opts));
function Server(_opts) {
if (_opts) {
jsonOverride(opts, _opts);
}
if (!(this instanceof Server)) {
return new Server(opts);
}
var dbPath = opts.dbname;
opts.leveldb = {
path: dbPath,
db: levelup(dbPath, {
valueEncoding: 'json'
})
};
this.db = opts.leveldb.db;
var logger = bunyan.createLogger({
name: pkgjson.name + '_log',
level: opts.loglevel,
stream: process.stdout,
serializers: restify.bunyan.serializers,
src: process.env.NODE_ENV !== 'production'
});
this.logger = logger;
this.logger.debug({options: opts});
this.restifyServer = restify.createServer({
name: pkgjson.name,
version: pkgjson.version,
log: logger,
src: process.env.NODE_ENV !== 'production'
});
this.restifyClient = restify.createJsonClient({
url: 'http://' + opts.svcdir
});
opts.client = this.restifyClient;
this.restifyServer.log.level(opts.loglevel);
/* eslint-disable new-cap */
if (opts.cors) {
this.restifyServer.pre(restify.CORS());
}
/* eslint-enable new-cap */
this.restifyServer.use(require('./middleware/uuid'));
this.restifyServer.use(require('./middleware/api-version'));
this.restifyServer.use(require('./middleware/logger'));
this.restifyServer.use(restify.queryParser());
if (opts['gen-key']) {
this.logger.debug('Generating keypair');
// NB the execs is run synchronously but NBD since this is startup
var keyname = 'paz-scheduler';
var code = sh.run('ssh-keygen -q -f ' + keyname + ' -N "" -C ' + keyname);
if (code) {
throw new _Error('Error code returned from ssh-keygen: ' + code);
}
opts['ssh-key'] = path.resolve(keyname);
var pubkeyb64 = new Buffer(sh.exec('cat ' + keyname + '.pub').stdout).toString('base64');
// NB the etcd calls are async (don't care when that finishes)
var terms = opts['etcd-endpoint'].split(':');
var etcd = new Etcd(terms[0], terms[1]);
var dir = path.dirname(opts['etcd-pubkey-key']);
etcd.mkdir(dir, function() {
// ignoring mkdir error because key may already exist. any 'real' errors will be caught on set anyway
etcd.set(opts['etcd-pubkey-key'], pubkeyb64, function(setErr) {
if (setErr) {
this.logger.error(setErr);
throw setErr;
}
}.bind(this));
}.bind(this));
}
}
Server.prototype.run = function() {
routes(this.restifyServer, opts);
this.restifyServer.listen(opts.port, function() {
this.restifyServer.log.info(pkgjson.name + ' now running on port ' + opts.port);
this.restifyServer.log.debug(opts);
}.bind(this));
};
Server.prototype.close = function(cb) {
this.restifyServer.close(function(err) {
if (err) {
console.log(err);
}
this.db.close(function(err2) {
if (err2) {
console.log(err2);
}
return cb();
});
}.bind(this));
};
if (require.main === module) {
console.log('Starting server');
var server = new Server();
server.run();
}
module.exports = Server;