celso

syntax on
set ruler               " Show the line and column numbers of the cursor.
set formatoptions+=o    " Continue comment marker in new lines.
set textwidth=0         " Hard-wrap long lines as you type them.
set modeline            " Enable modeline.
set esckeys             " Cursor keys in insert mode.
set linespace=0         " Set line-spacing to minimum.
set nojoinspaces        " Prevents inserting two spaces after punctuation on a join (J)
" More natural splits
set splitbelow          " Horizontal split below current.

wesleybliss

version: '2'
services:
    myapp:
        build: .
        container_name: "myapp"
        image: debian/latest
        environment:
            - NODE_ENV=development
            - FOO=bar
        volumes:

steinwaywhw

• Use curl to get the JSON response for the latest release
• Use grep to find the line containing file URL
• Use cut and tr to extract the URL
• Use wget to download it

curl -s https://api.github.com/repos/jgm/pandoc/releases/latest \
| grep "browser_download_url.*deb" \
| cut -d : -f 2,3 \
| tr -d \" \

bahmutov

# See list of docker virtual machines on the local box
$ docker-machine ls
NAME      ACTIVE   URL          STATE     URL                         SWARM   DOCKER   ERRORS
default   *        virtualbox   Running   tcp://192.168.99.100:2376           v1.9.1 

# Note the host URL 192.168.99.100 - it will be used later!

# Build an image from current folder under given image name
$ docker build -t gleb/demo-app .

spalladino

# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE

mikberg

import { MongoClient } from 'mongodb';
import promisify from 'es6-promisify';

let _connection;

const connect = () => {
  if (!process.env.MONGO_CONNECTION_STRING) {
    throw new Error(`Environment variable MONGO_CONNECTION_STRING must be set to use API.`);
  }

soheilhy

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

katychuang

#!/usr/bin/env sh

# first check to see if mongo service is running. you can't delete any files until the service stops so perform a quick check.
launchctl list | grep mongo
  # NOTE: the pipe | symbol means the commands on the right performs on the output from the left
  # grep is a string search utility. `grep mongo` means search for the substring mongo
 
# use the unload command to end the mongo service. this is required to 'unlock' before removing the service.
#    first look for the file to delete
MONGO_SERVICE_FILE=$(ls ~/Library/LaunchAgents/*mongodb*)

joyrexus

A quick overview of the node.js streams interface with basic examples.

This is based on @brycebaril's presentation, Node.js Streams2 Demystified

Overview

Streams are a first-class construct in Node.js for handling data.

Think of them as as lazy evaluation applied to data.

subfuzion

Install with Homebrew

brew install mongodb

Set up launchctl to auto start mongod

$ ln -sfv /usr/local/opt/mongodb/*.plist ~/Library/LaunchAgents

/usr/local/opt/mongodb/ is a symlink to /usr/local/Cellar/mongodb/x.y.z (e.g., 2.4.9)