Setting up MongoDB on Ubuntu

(MongoDB: Install MongoDB Community Edition on Ubuntu)
(Linode: Install MongoDB on Ubuntu 16.04 (Xenial))
(Digital Ocean: How To Install MongoDB on Ubuntu 14.04)

Before You Begin

1. Check for updates
   sudo apt-get update && sudo apt-get upgrade

Add the MongoDB repository

1. Import the MongoDB public GPG key for package signing
   sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A14518585931BC711F9BA15703C6
2. Add the MongoDB repository to your sources.list.d directory
   echo "deb [ arch=amd64,arm64 ] http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.4.list
3. Update your repositories. This allows apt to read from the newly added MongoDB repo
   sudo apt-get update
4. Install MongoDB
   sudo apt-get install mongodb-org
5. Enable auto-start on reboot
   sudo systemctl enable mongod.service
6. Open a port in ufw
   sudo ufw allow 27017

Running MongoDB

1. Start MongoDB
   sudo service mongod start
2. Verify MongoDB started
   sudo nano /var/log/mongodb/mongod.log
   and look for
   [initandlisten] waiting for connections on port 27017
3. Stop MongoDB
   sudo service mongod stop
4. Restart MongoDB
   sudo service mongod restart

Setup MongoDB users

1. Open MongoDB
   mongo --port 27017
2. Create an admin database
   use admin
3. Add a mongodbAdminUsername and mongodbAdminPassword (letters and numbers, no funny characters)
   db.createUser({user: "mongodbAdminUsername", pwd: "mongodbAdminPassword", roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]})
4. Exit
   exit
5. Restart MongoDB
   sudo service mongod restart

Mini series

1. Setting up a server at Linode
2. Install Let’s Encrypt to Create SSL Certificates on Ubuntu
3. Setting up MongoDB on Ubuntu
4. Setting up nginx on Ubuntu for parse-server
5. Setting up parse-server on Ubuntu