Develop Reference

Pm2 Not Providing Logs With Ecosystem + startOrRestart

I'm currently running a node application with Pm2, but am struggling to get logs.
Currently, if I start the script with just node index.js my logger function (using winston) sends the logs to the screen just fine. The first two lines in the below video ("IS THIS SHOWING UP" and "YA") are from console.log statements inside my javascript files, and the latter lines are from my logger function. It looks like this:
However, in the deployment of my server, I'm using an ecosystem.config.js file with Pm2. When I run my server with pm2 start index.js, the logger also works. HOWEVER, when I start my server using my ecosystem file, the pm2 instance only sends the console.log statements to the output, not the logs output by the winston logger.
This means that I've got something misconfigured in my ecosystem.config.js file. What's going wrong?
package.json (script that kicks off the pm2 instance)
{
"name": "graphqlCourse",
...
"scripts": {
"prod:serve": "NODE_ENV=production pm2 startOrRestart ecosystem.config.js"
},
"dependencies": {
...
ecosystem.config.js
module.exports = {
apps: [
/// I believe that something is misconfigured in here relating to logging.....
{
name: process.env.APP_NAME,
args: ["--color"],
interpreter: process.env.NODE_PATH,
cwd: path.resolve(process.env.PROJECT_PATH, 'current' ),
script: 'dist/index.js',
instances: process.env.INSTANCES || 0,
exec_mode: "cluster",
env: {
...process.env,
},
},
],
deploy: {
production: {
user: "harrison",
host: process.env.HOST,
key: "~/.ssh/id_rsa2",
ref: "origin/master",
repo: process.env.GIT_REPO,
path: process.env.PROJECT_PATH,
"pre-deploy-local": `scp -Cr envs harrison#${process.env.HOST}:${process.env.PROJECT_PATH}/current`,
"post-deploy": `yarn install --ignore-engines && \
pwd && \
yarn prod:build && \
yarn prod:serve`,
},
},
};
-- EDIT --
Here's my logger as well:
import winston, { format } from "winston";
import "winston-daily-rotate-file"; // Attaches new transport to winston.transports
// Define the custom settings for each transport (file, console)
let consoleOptions = {
level: "info",
handleExceptions: true,
stderrLevels: ["error"],
silent: process.env.SILENT === "true",
format: format.combine(
format.colorize(),
format.align(),
format.printf((info) => {
const { level, message } = info;
return `[${level}]: ${message}`;
})
),
};
let consoleTransport = new winston.transports.Console(consoleOptions);
// Log rotation
const transport = new winston.transports.DailyRotateFile({
filename: `API_${process.env.NODE_ENV}.log`,
dirname: `./${
process.env.NODE_ENV === "production" ? "dist" : "server"
}/logs`,
frequency: null, // Rely on date pattern, rotate daily
datePattern: "YYYY-MM-DD",
zippedArchive: true,
maxSize: "10m",
maxFiles: "14d",
format: format.combine(format.timestamp(), format.json()),
});
transport.on("rotate", (oldFileName, newFilename) => {
console.log(`ROTATING LOGS. OLD: ${oldFileName} -- NEW: ${newFilename}`);
});
// Handles input from Morgan.
var writer = new winston.createLogger({
transports: [transport],
});
// Handles logger.XX calls from within app.
export const logger = new winston.createLogger({
transports: [consoleTransport, transport],
exitOnError: false, // do not exit on handled exceptions
});
// Recieves message from morganToWinston
logger.stream = {
write: function (message) {
writer.info(message);
},
};

Gruntfile : livereload doesn't work

I got nothing wrong in the terminal but Chrome doesn't answer to change on my html files and don't automatically reload the page.
I include 'livereload.js' in my index.html but i'm not sure if it's required.
Thanks for your help.
module.exports = function(grunt) {
// Load Grunt tasks declared in the package.json file
require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);
// Configure Grunt
grunt.initConfig({
// Grunt express - our webserver
// https://github.com/blai/grunt-express
express: {
all: {
options: {
bases: ['/Users/antoine/Dropbox/prog/projets/antoine/'],
port: 8080,
hostname: "localhost",
livereload: true
}
}
},
// grunt-watch will monitor the projects files
// https://github.com/gruntjs/grunt-contrib-watch
watch: {
all: {
files: '**/*.html',
options: {
livereload: true,
interval: 1500,
}
}
},
// grunt-open will open your browser at the project's URL
// https://www.npmjs.org/package/grunt-open
open: {
all: {
path: 'http://localhost:8080/index.html'
}
}
});
// Creates the `server` task
grunt.registerTask('server', [
'express',
'open',
'watch'
]);
};

Unable to pass arguments from command to grunt file

I am using the code bellow for arguments which are using in protractor configuration file
protractor: {
options: {
keepAlive: true,
configFile: "test/config.js",
args:{
params:{
user:"user1",
password:"password1"
}
}
},
and retrieving in protractor conf file as browser.params.user,browser.params.password
These are working files.
I want to change the user and password values from command.
How to change the values?

This is a simple work around:
When you pass a parameter to your grunt task:
grunt e2e --user=alex --password=password
it's available as
grunt.option('user')
You can then edit the values you have in the config using:
var protConfig = grunt.config.get('protractor');
protConfig.options['someKey']=newValue;
grunt.config('protractor', protConfig);
grunt.task.run('protractor');
Not sure this is the best way to go about it, but it's working fine for me.
Also notice that we're wrapping the protractor task rather than calling it right away

how to fetch --user argument in protractor Specs?

In the code below I register a task "myprotractor" and whatever comes after the task as argument will go as parameter into the anonymous function:
grunt myprotractor:dev:pwd
module.exports = function(grunt) {
grunt.registerTask('myprotractor', function(user, pwd) {
console.log(user + pwd);
grunt.config('protractor', {
options: {
keepAlive: true,
configFile: "test/config.js",
args: {
params: {
user: user,
password: pwd
}
}
}
});
//here I am running the task
grunt.task.run([
'protractor'
]);
});
};
If you need you can configure 2 targets for protractor, having some common configuration and the args being set depending if you wish them from cmd or from config.
grunt myprotractor:cmd:dev:pwd
module.exports = function(grunt) {
grunt.registerTask('myprotractor', function(target, user, pwd) {
console.log(user + pwd);
grunt.config('protractor', {
options: {
keepAlive: true,
configFile: "test/config.js"
},
cmd: {
options: {
args: {
params: {
user: user,
password: pwd
}
}
}
},
config: {}
});
//here I am running the task with a target
grunt.task.run([
'protractor:' + target
]);
});
};

Using grunt as a service

I am trying to build custom themes for my users. They do so by changing some less variables. I then store these to do and grunt there theme into a css which is then uploaded to server.
My problem is with the less grunting. Here is my code:
Gruntfile.js
module.exports = function(grunt) {
grunt.loadNpmTasks('grunt-contrib-less');
};
In nodejs
module.exports.test = function(req,res){
grunt.initConfig({
globalConfig: {
id: req.insertId
},
less: {
default: {
options: {
modifyVars: req.body.less
},
'files': {
"/tmp/theme<%= globalConfig.id %>.css": "templates/app.less"
}
}
}
});
grunt.tasks(['less']);
});
The problem is that in my console
Running "less:default" (less) task File /tmp/theme26.css created: 0 B
→ 9.22 kB
Done, without errors.
worker undefined died. spawning a new process...
Why does grunt kill my process? How can I prevent this?

Grunt problems with proxies - Gruntjs

I have been working all day on trying to get my proxies set up in my Gruntfile. Here is my Gruntfile:
var proxySnippet = require('grunt-connect-proxy/lib/utils').proxyRequest;
module.exports = function(grunt) {
require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);
grunt.initConfig({
connect:{
livereload: {
options: {
middleware: function (connect) {
return [proxySnippet];
}
}
},
options: {
port: 9000,
base: 'app',
keepalive: true,
livereload: true
},
proxies: [
{
context: '/public/api',
host: 'localhost',
port: 8182,
https: false,
rewrite: {
'^/public/api': ''
}
}
]
}
});
grunt.registerTask('server', ['less', 'configureProxies', 'connect', 'connect', 'watch', 'open:dev']);
};
When I run my grunt server I can only hit my proxy. If I try to just hit anything other than the proxy I get a 404. What is giving me this issue?

I also had a lot of trouble setting up a proxy using grunt-connect-proxy.
Digging in the source code of grunt-contrib-connect, I realized that it uses the nodeJs Connect framework behind the scene.
Internally the middleware option defaults to this function:
function (connect, options) {
var middlewares = [];
if (!Array.isArray(options.base)) {
options.base = [options.base];
}
var directory = options.directory || options.base[options.base.length - 1];
options.base.forEach(function (base) {
// Serve static files.
middlewares.push(connect.static(base));
});
// Make directory browse-able.
middlewares.push(connect.directory(directory));
return middlewares;
}
Which basically adds the connect.static and the connect.directory middlewares to an array passed to the connect(middlewares) constructor.
Knowing that, we can make use of the proxy-middleware nodeJs package like this:
connect: {
server: {
options: {
port: 9002,
keepalive: true,
middleware: function (connect, options) {
// Proxy all requests to target the local application.
var proxyOptions = require('url').parse('http://localhost:8080/');
proxyOptions.route = '/api';
return [
require('proxy-middleware')(proxyOptions), // Include the proxy first.
connect.static(options.base), // Serve static files.
connect.directory(options.base) // Make empty directories browse-able.
];
}
}
}
}
Basically we are adding a middleware to the middleware array.
This new proxy middleware will translate any incoming request like http://localhost:9002/api/ into http://localhost:8080/