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nf.js
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nf.js
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#!/usr/bin/env node
// Copyright IBM Corp. 2012,2015. All Rights Reserved.
// Node module: foreman
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT
var path = require('path');
var events = require('events');
var fs = require('fs');
var colors = require('./lib/colors');
var quote = require('shell-quote').quote;
var program = require('commander');
var display = require('./lib/console').Console;
var nf = require('./package.json');
program.version(nf.version);
program.option('-j, --procfile <FILE>' ,'load procfile FILE','Procfile');
program.option('-e, --env <FILE>' ,'load environment from FILE, a comma-separated list','.env');
program.option('-p, --port <PORT>' ,'start indexing ports at number PORT',0);
// Foreman Event Bus/Emitter //
var emitter = new events.EventEmitter();
emitter.once('killall',function(signal){
display.Done("Killing all processes with signal ", signal);
});
emitter.setMaxListeners(50);
var _proc = require('./lib/proc');
var start = _proc.start;
var once = _proc.once;
var _procfile = require('./lib/procfile');
var loadProc = _procfile.loadProc;
var _envs = require('./lib/envs');
var loadEnvs = _envs.loadEnvs;
var _requirements = require('./lib/requirements');
var getreqs = _requirements.getreqs;
var calculatePadding = _requirements.calculatePadding;
var startProxies = require('./lib/proxy').startProxies;
var startForward = require('./lib/forward').startForward;
// Kill All Child Processes on SIGINT
process.once('SIGINT', function() {
display.Warn('Interrupted by User');
emitter.emit('killall', 'SIGINT');
});
program
.command('start [procs]')
.usage('[Options] [Processes] e.g. web=1,log=2,api')
.option('-s, --showenvs' ,'show ENV variables on start',false)
.option('-x, --proxy <PORT>' ,'start a load balancing proxy on PORT')
.option('--ssl-key <KEY FILE>' ,'a key file to use when proxying SSL')
.option('--ssl-cert <CERT FILE>','a cert file to use when proxying SSL')
.option('-f, --forward <PORT>' ,'start a forward proxy on PORT')
.option('-i, --intercept <HOSTNAME>' ,'set forward proxy to intercept HOSTNAME',null)
.option('-r, --raw' ,'raw log output with no app name, timestamp, wrap or trim', false)
.option('-t, --trim <N>' ,'trim logs to N characters',0)
.option('-w, --wrap' ,'wrap logs (negates trim)')
.description('Start the jobs in the Procfile')
.action(function(args) {
var command = this;
var envs = loadEnvs(program.env);
var proc = loadProc(program.procfile);
if(!proc) { return; }
if(command.showenvs){
for(var key in envs){
display.Alert("env %s=%s", key, envs[key]);
}
}
var reqs = getreqs(args, proc);
display.padding = calculatePadding(reqs);
display.raw = command.raw;
if(command.wrap) {
display.wrapline = process.stdout.columns - display.padding - 7;
display.trimline = 0;
display.Alert('Wrapping display Output to %d Columns', display.wrapline);
} else {
display.trimline = command.trim;
if(display.trimline > 0){
display.Alert('Trimming display Output to %d Columns', display.trimline);
}
}
if(command.forward) {
startForward(command.forward, command.intercept, emitter);
}
startProxies(reqs, proc, command, emitter, program.port || envs.PORT || process.env.PORT || 5000);
start(proc, reqs, envs, program.port || envs.PORT || process.env.PORT || 5000, emitter);
});
program
.command('run <COMMAND...>')
.usage('[Options]')
.option('-s, --showenvs', 'show ENV variables on start', false)
.description('Run a one off process using the ENV variables')
.action(function(args) {
var command = this;
var envs = loadEnvs(program.env);
var callback = function(code) {
process.exit(code);
};
if(!args || !args.length) { return; }
var input = quote(args);
if(command.showenvs) {
for(var key in envs){
display.Alert("env %s=%s",key,envs[key]);
}
}
display.trimline = process.stdout.columns - 5;
once(input, envs, callback);
});
var exporters = require('./lib/exporters');
program
.command('export [PROCS]')
.option('-a, --app <NAME>' ,'export upstart application as NAME','foreman')
.option('-u, --user <NAME>' ,'export upstart user as NAME','root')
.option('-o, --out <DIR>' ,'export upstart files to DIR','.')
.option('-c, --cwd <DIR>' ,'change current working directory to DIR')
.option('-g, --gid <GID>' ,'set gid of upstart config to GID')
.option('-l, --log <DIR>' ,'specify upstart log directory','/var/log')
.option('-t, --type <TYPE>' ,'export file to TYPE (default upstart)','upstart')
.option('-m, --template <DIR>' ,'use template folder')
.description('Export to an upstart job independent of foreman')
.action(function(procArgs) {
var command = this;
var envs = loadEnvs(program.env);
var procs = loadProc(program.procfile);
if(!procs) { return; }
var req = getreqs(procArgs, procs);
// Variables for Upstart Template
var config = {
application : command.app,
cwd : path.resolve(process.cwd(), command.cwd || ''),
user : command.user,
logs : command.log,
envs : envs,
group : command.gid || command.user,
template : command.template
};
config.envfile = path.resolve(program.env);
var writeout;
if(exporters[command.type]) {
writeout = exporters[command.type];
} else {
display.Error("Unknown Export Format", command.type);
process.exit(1);
}
// Check for Upstart User
// friendly warning - does not stop export
var userExists = false;
fs.readFileSync('/etc/passwd')
.toString().split(/\n/).forEach(function(line) {
if(line.match(/^[^:]*/)[0] == config.user){
userExists = true;
}
});
if(!userExists) {
display.Warn(display.fmt("User %s Does Not Exist on System", config.user));
}
var baseport = parseInt(program.port || envs.PORT || process.env.PORT || 5000);
var baseport_i = 0;
var baseport_j = 0;
var envl = [];
config.processes = [];
// This is ugly because of shitty support for array copying
// Cleanup is definitely required
for(var key in req) {
var c = {};
var cmd = procs[key];
if (!cmd){
display.Warn("Required Key '%s' Does Not Exist in Procfile Definition", key);
continue;
}
var n = req[key];
config.processes.push({process:key, n: n});
c.process = key;
c.command = cmd;
for(var _ in config){
c[_] = config[_];
}
c.numbers = [];
for(var i=1; i <= n; i++) {
var conf = {};
conf.number = i;
for(_ in c){
conf[_] = c[_];
}
conf.port = baseport + baseport_i + baseport_j * 100;
envl = [];
for(key in envs) {
envl.push({
key: key,
value: envs[key]
});
}
envl.push({ key: 'PORT', value: conf.port });
envl.push({ key: 'FOREMAN_WORKER_NAME', value: conf.process + '.' + conf.number });
conf.envs = envl;
// Write the APP-PROCESS-N.conf File
writeout.foreman_app_n(conf,command.out);
baseport_i++;
c.numbers.push({number: i});
}
envl = [];
for(key in envs){
envl.push({
key: key,
value: envs[key]
});
}
c.envs = envl;
// Write the APP-Process.conf File
writeout.foreman_app(c,command.out);
baseport_i = 0;
baseport_j++;
}
// Write the APP.conf File
writeout.foreman(config,command.out);
});
program.parse(process.argv);
if (!process.argv.slice(2).length) {
console.log(colors.cyan(' _____ '));
console.log(colors.cyan(' | __|___ ___ ___ _____ ___ ___ '));
console.log(colors.yellow(' | __| . | _| -_| | | |'));
console.log(colors.magenta(' |__| |___|_| |___|_|_|_|_^_|_|_|'));
program.outputHelp();
process.exit(1);
}