View source for Mongo

=Install=
<syntaxhighlight lang="bash">
sudo bash
apt-get install gnupg -y
wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list
apt-get update 
apt-get install mongodb-org -y
systemctl start mongod
systemctl enable mongod
systemctl status mongod
</syntaxhighlight>
Test connection with
<syntaxhighlight lang="bash">
mongo --eval 'db.runCommand({ connectionStatus: 1 })'
</syntaxhighlight>
Do some stuff to show working
<syntaxhighlight lang="mongo">
mongo
use test_db
db.files.insert({"name":"rap"})
db.dropDatabase()
</syntaxhighlight>
==Create Root User==
<syntaxhighlight>
db.createUser(
      {
          user: "username",
          pwd: "password",
          roles: [ "root" ]
      }
  )
</syntaxhighlight>
==Configure==
nano /etc/mongod.conf
<syntaxhighlight>
security:
  authorization: enabled
</syntaxhighlight>
Restart the service
<syntaxhighlight lang="bash">
systemctl restart mongod
</syntaxhighlight>
==Create a user==
Start the cli interface with 
<syntaxhighlight lang="bash">
mongo
</syntaxhighlight>
Now type
<syntaxhighlight>
use admin
db.createUser({
 user: "Employeeadmin",
 pwd: "password",
 roles:[{role: "userAdmin" , db:"test_db"}]
})
quit()
</syntaxhighlight>
No test by Test is
<syntaxhighlight>
mongo -u admin -p --authenticationDatabase admin
use admin
db.getUsers();
</syntaxhighlight>

==Connecting from cli==
For admin
<syntaxhighlight>
mongo -u  admin -p --authenticationDatabase  admin
</syntaxhighlight>
For normal user
<syntaxhighlight>
mongo -u  test_admin -p test_admin --host localhost
</syntaxhighlight>
==Create/Show/Delete a database and user==
Ezzy pezzy
<syntaxhighlight>
use mydb
show dbs
db.dropDatabase()
</syntaxhighlight>
==Grant Authority to A Role
Two commands are used
<syntaxhighlight>
db.auth("user","password")
db.grantRolesToUser( "user", [ { role: "dbOwner", db: "test_db" } ])

</syntaxhighlight>