How to install mongodb on centos 8

MongoDB is a popular NoSQL database suited for handling large volumes of data. Installing MongoDB on CentOS 8 requires configuring repositories and system settings properly. Follow the steps below to get MongoDB up and running smoothly.

Step 1: Disable CentOS 8 AppStream Module

MongoDB packages conflict with CentOS 8’s default AppStream modules. Disabling the default MongoDB module prevents package conflicts.

sudo dnf module disable mongodb -y

Output example:

Dependencies resolved.
================================================================================
 Package       Architecture Version Repository                       Size
================================================================================
Disabling modules:
 mongodb                                                     CentOS-8 - AppStream      0  
Transaction Summary
================================================================================
Disable  1 Module

Is this ok [y/N]: y
Complete!

Step 2: Create MongoDB Repository File

Add the official MongoDB repository to your system to install the latest MongoDB version. This step creates a repo file with MongoDB download details.

sudo tee /etc/yum.repos.d/mongodb-org.repo > /dev/null <<EOF
[mongodb-org-5.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/\$releasever/mongodb-org/5.0/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-5.0.asc
EOF

Step 3: Install MongoDB Packages

Install MongoDB server, shell, and tools packages from the configured repository. This ensures you get all necessary components for running and managing MongoDB.

sudo dnf install -y mongodb-org

Output example:

Installed:
  mongodb-org-server-5.0.x86_64                    mongodb-org-shell-5.0.x86_64
  mongodb-org-mongos-5.0.x86_64                     mongodb-org-tools-5.0.x86_64

Complete!

Step 4: Enable and Start MongoDB Service

Enable MongoDB to start on system boot and launch the service immediately. Use systemctl commands to manage the service status.

sudo systemctl enable mongod

sudo systemctl start mongod

Check the service status:

sudo systemctl status mongod

Expected output snippet:

● mongod.service - MongoDB Database Server
   Loaded: loaded (/usr/lib/systemd/system/mongod.service; enabled)
   Active: active (running) since Wed 2025-05-15 10:00:00 UTC

Step 5: Verify MongoDB Installation

Confirm MongoDB is working by connecting with the mongo shell and checking the server status.

mongo --eval 'db.runCommand({ connectionStatus: 1 })'

Sample output:

{
        "authInfo" : {
                "authenticatedUsers" : [ ],
                "authenticatedUserRoles" : [ ]
        },
        "ok" : 1
}

MongoDB is now installed and ready to use on CentOS 8. For configuration customization, refer to the /etc/mongod.conf file. Remember to secure MongoDB for production use by enabling authentication and firewall rules.