Hello, friends. Throughout this post, we will take you to learn how to install MongoDB on Debian 11.
MongoDB is the most representative of the databases known as NoSQL, an acronym for Not only SQL. It is document-oriented and multi-platform, which means that we can use it on many different systems.
In Mongo DB there are no predefined schemas, the keys and values of a document are of fixed types or sizes, in a document with a fixed schema the tasks to add or delete fields become easier and with great performance.
Data in Mongo DB is stored using BSON format structures, which is a specification similar to JSON so any modern text editor can edit it without any problems.
So MongoDB has positioned itself as one of the most solid alternatives to database managers like SQLite or MariaDB. So, let’s go for it.
Install MongoDB on Debian 11
For this post, we will use the MongoDB repository for Debian 10 which also works for this new Debian version. However, we are still waiting for the MongoDB developers to include Debian 11 in their repositories.
So, open a terminal and update the operating system completely.
sudo apt update sudo apt upgrade
Before adding the MongoDB repository to the system, it is necessary to install a package called gnupg2.
sudo apt install gnupg2
After that, add the GPG key of the repository as follows
wget -qO - https://www.mongodb.org/static/pgp/server-5.0.asc | sudo apt-key add -
Now add the MongoDB repository to your system by running
echo "deb http://repo.mongodb.org/apt/debian buster/mongodb-org/5.0 main" | sudo tee /etc/apt/sources.list.d/mongodb-org-5.0.list
Refresh APT to accept the new changes
sudo apt update
Next, install MongoDB on Debian 11 by running
sudo apt install mongodb-org Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: mongodb-database-tools mongodb-mongosh mongodb-org-database mongodb-org-database-tools-extra mongodb-org-mongos mongodb-org-server mongodb-org-shell mongodb-org-tools The following NEW packages will be installed: mongodb-database-tools mongodb-mongosh mongodb-org mongodb-org-database mongodb-org-database-tools-extra mongodb-org-mongos mongodb-org-server mongodb-org-shell mongodb-org-tools 0 upgraded, 9 newly installed, 0 to remove and 25 not upgraded. Need to get 147 MB of archives. After this operation, 464 MB of additional disk space will be used. Do you want to continue? [Y/n]
After that, you can check the installed version using this command
mongod --version
Output:
db version v5.0.3
Build Info: {
"version": "5.0.3",
"gitVersion": "657fea5a61a74d7a79df7aff8e4bcf0bc742b748",
"openSSLVersion": "OpenSSL 1.1.1k 25 Mar 2021",
"modules": [],
"allocator": "tcmalloc",
"environment": {
"distmod": "debian10",
"distarch": "x86_64",
"target_arch": "x86_64"
}
}
Managing the MongoDB service
Once it is installed, you can manage its service just like any other service on the system.
To start MongoDB you have to run
sudo systemctl start mongod
It is usually a good idea to make it start with the system so that it is immediately available.
sudo systemctl enable --now mongod Created symlink /etc/systemd/system/multi-user.target.wants/mongod.service → /lib/systemd/system/mongod.service.
If you make changes to the MongoDB configuration then you will have to restart it to apply the changes.
sudo systemctl restart mongod
Finally, it is advisable to check the status of the service to see if everything is OK.
sudo systemctl status mongod
● mongod.service - MongoDB Database Server
Loaded: loaded (/lib/systemd/system/mongod.service; enabled; vendor preset: enabled)
Active: active (running) since Sat 2021-10-09 18:51:39 CEST; 25s ago
Docs: https://docs.mongodb.org/manual
Main PID: 13759 (mongod)
Memory: 67.3M
CPU: 1.561s
CGroup: /system.slice/mongod.service
└─13759 /usr/bin/mongod --config /etc/mongod.conf
Oct 09 18:51:39 osradar systemd[1]: Started MongoDB Database Server.
Creating a new user for MongoDB
To access the MongoDB shell just run the command command
mongo
And once inside, it is recommended to create a new user different from the root.
use admin
db.createUser(
{
user: "osradar",
pwd: passwordPrompt(),
roles: [ { role: "userAdminAnyDatabase", db: "admin" }, "readWriteAnyDatabase" ]
}
)
Copy and paste the following but change osradar to the name of the user you want.
Then you will have to define a password that has to be secure.
Conclusion
MongoDB is a tool to take into account if we want to develop applications that do not require a SQL database handler. Being open-source we can use it in many different situations with guaranteed performance and efficiency.
