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main.js
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main.js
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#!/usr/bin/env node
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
/*
* Copyright 2021 Joyent, Inc.
*/
/*
* Main entry-point for the Image API (IMGAPI) for Triton.
*/
var util = require('util');
var path = require('path');
var fs = require('fs');
var EffluentLogger = require('effluent-logger');
var nopt = require('nopt');
var restify = require('restify');
var bunyan = require('bunyan');
var assert = require('assert-plus');
var vasync = require('vasync');
var mod_config = require('./lib/config');
var createApp = require('./lib/app').createApp;
var objCopy = require('./lib/utils').objCopy;
var images = require('./lib/images');
//---- globals
var NAME = 'imgapi';
var VERSION = require('./package.json').version;
var log;
//---- internal support functions
function usage(code, msg) {
if (msg) {
console.error('ERROR: ' + msg + '\n');
}
printHelp();
process.exit(code);
}
function printHelp() {
util.puts('Usage: node main.js [OPTIONS]');
util.puts('');
util.puts('The SDC Image API (IMGAPI).');
util.puts('');
util.puts('Options:');
util.puts(' -h, --help Print this help info and exit.');
util.puts(' --version Print version and exit.');
util.puts(' -d, --debug Debug level. Once for DEBUG log output.');
util.puts(' Twice for TRACE. Thrice to add "src=true"');
util.puts(' to Bunyan log records.');
util.puts(' -f, --file CONFIG-FILE-PATH');
util.puts(' Specify config file to load.');
}
function handleArgv() {
var longOpts = {
'help': Boolean,
'version': Boolean,
'debug': [Boolean, Array],
'file': path
};
var shortOpts = {
'h': ['--help'],
'd': ['--debug'],
'f': ['--file']
};
var opts = nopt(longOpts, shortOpts, process.argv, 2);
if (opts.help) {
usage(0);
}
if (opts.version) {
util.puts('IMGAPI ' + VERSION);
process.exit(0);
}
var logSrc = false,
logLevel = 'info';
if (opts.debug) {
logLevel = (opts.debug.length > 1 ? 'trace' : 'debug');
if (opts.debug.length > 2)
logSrc = true;
}
var serializers = objCopy(restify.bunyan.serializers);
serializers.image = images.bunyanImageSerializer;
log = bunyan.createLogger({ // `log` is intentionally global.
name: NAME,
level: logLevel,
src: logSrc,
serializers: serializers
});
log.trace({opts: opts}, 'opts');
// Die on unknown opts.
var extraOpts = {};
Object.keys(opts).forEach(function (o) { extraOpts[o] = true; });
delete extraOpts.argv;
Object.keys(longOpts).forEach(function (o) { delete extraOpts[o]; });
extraOpts = Object.keys(extraOpts);
if (extraOpts.length) {
console.error('unknown option%s: -%s\n',
(extraOpts.length === 1 ? '' : 's'), extraOpts.join(', -'));
usage(1);
}
return opts;
}
function addFluentdHost(log_, host) {
var evtLogger = new EffluentLogger({
filter: function _evtFilter(obj) { return (!!obj.evt); },
host: host,
log: log_,
port: 24224,
tag: 'debug'
});
log_.addStream({
stream: evtLogger,
type: 'raw'
});
}
//---- mainline
function main() {
var app;
var config;
var opts = handleArgv();
vasync.pipeline({funcs: [
function getConfig(_, next) {
var loadOpts = {log: log, path: opts.file};
mod_config.loadConfig(loadOpts, function (err, config_) {
config = config_;
next(err);
});
},
function setupWithConfig(_, next) {
if (!opts.debug && config.logLevel) {
log.level(config.logLevel);
if (log.level() <= bunyan.TRACE) {
log.src = true;
}
}
// EXPERIMENTAL
if (config.fluentd_host) {
addFluentdHost(log, config.fluentd_host);
}
// Log config (but don't put passwords in the log file).
var censorKeys = {
'password': '***',
'authToken': '***',
'pass': '***'
};
function censor(key, value) {
var censored = censorKeys[key];
return (censored === undefined ? value : censored);
}
log.info({config: JSON.stringify(config, censor, 2)},
'loaded config');
next();
},
function createAndStartTheApp(_, next) {
createApp(config, log, function (err, app_) {
if (err) {
next(err);
return;
}
app = app_;
app.setupPlaceholderCleanupInterval();
app.setupRemoteArchiveInterval();
app.listen(function () {
var addr = app.server.address();
log.info('Image API listening on <http://%s:%s>.',
addr.address, addr.port);
next();
});
});
},
function setupSignalHandlers(_, next) {
// Try to ensure we clean up properly on exit.
function closeApp(callback) {
if (app) {
log.info('Closing app.');
app.close(callback);
} else {
log.debug('No app to close.');
callback();
}
}
process.on('SIGINT', function () {
log.debug('SIGINT. Cleaning up.');
closeApp(function () {
process.exit(1);
});
});
next();
}
]}, function (err) {
if (err) {
log.error(err, 'error starting up');
process.exit(2);
}
log.info('startup complete');
});
}
main();