How to Install and Confugure MongoDB, Create Database and User on Ubuntu 18.04

mongodb.sh

#Update the Ubuntu packages list
sudo apt update

#Install the MongoDB package
sudo apt install -y mongodb

#Check the Service and Database
sudo systemctl status mongodb

#View database version, server address and port
mongo --eval 'db.runCommand({ connectionStatus: 1 })'

#Verify the status of the service, type
sudo systemctl status mongodb

#Optional

#Stop, start, restart the server
sudo systemctl stop mongodb
sudo systemctl start mongodb
sudo systemctl restart mongodb

#Disable, enable the automatic startup
sudo systemctl disable mongodb
sudo systemctl enable mongodb

#Adjusting the Firewall
sudo ufw allow from your_other_server_ip/32 to any port 27017  

#Verify the change in firewall settings
sudo ufw status

#Allow remote connections
sudo nano /etc/mongodb.conf

#Add your server’s IP address to the bindIP value:
# bind_ip = 127.0.0.1,your_server_ip

#Restart MongoDB
sudo systemctl restart mongodb

#Start Mongo Shell
mongo

#Create a new_database in MongoDB, firstly it needs to select this database
use new_database

#Check the currently selected database
db

#List all databases in MangoDB 
show dbs
#It will not show new_database

#reate a new_collection and insert a document
db.new_collection.insert({ some_key: "some_value" })

#List all databases in MangoDB 
show dbs

# create a new_user for new_database with readWrite permissions in MongoDB
# db.createUser(
#  {
#    user: "new_user",
#    pwd: "some_password",
#    roles: [ { role: "readWrite", db: "new_database" } ]
#  }
# )
#List all collections in the selected MangoDB database
show collections

#Delete selected MongoBD database
# db.dropDatabase()

#Uninstall MongoDB

#Stop MongoDB
sudo service mongod stop

#Remove Packages.
sudo apt-get purge mongodb-org*

#Remove Data Directories
sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongodb