MongoDB is a popular open-source NoSQL database that provides high performance, scalability, and flexibility for modern applications. This guide will show you how to install and configure MongoDB 7.0 on AlmaLinux 9, including essential steps such as configuring system limits, security settings, and user authentication.

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Step 1: Create an Instance on Cloud.shape.host

Step 1.1: Access the Dashboard

1. Log in to Cloud.shape.host.
2. Click Create, and select Instances.

Step 1.2: Choose a Datacenter Location

Select a datacenter closest to your target audience, such as New York, London, or Frankfurt.

Step 1.3: Select a Plan

Choose a plan based on the resource needs of your MongoDB installation: Standard, CPU-Optimized, or Memory-Optimized.

Step 1.4: Select an Operating System

Select AlmaLinux 9 as your OS for installing MongoDB.

Step 1.5: Configure and Launch

1. Set the Network Type and Authentication Method (SSH key or password).
2. Click Create Instance.

Step 1.6: Locate your Instance’s IP

Step 1.7: Access Your Instance

• SSH (for Linux/macOS):

   ssh root@<your-instance-ip>

Replace <your-instance-ip> with the server’s public IP.

• PuTTY (for Windows):
  Download PuTTY, enter the public IP, and click Open.

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Step 2: Update AlmaLinux Packages

First, ensure your system is up to date:

dnf update -y

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Step 3: Install Nano Text Editor

If Nano is not already installed, use this command to install it:

dnf install nano -y

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Step 4: Disable Transparent Huge Pages (THP)

Create a systemd service to disable THP:

nano /etc/systemd/system/disable-thp.service

Insert the following configuration:

[Unit]
Description=Disable Transparent Huge Pages (THP)

[Service]
Type=simple
ExecStart=/bin/sh -c "echo 'never' > /sys/kernel/mm/transparent_hugepage/enabled && echo 'never' > /sys/kernel/mm/transparent_hugepage/defrag"

[Install]
WantedBy=multi-user.target

Reload the systemd manager and enable the service:

systemctl daemon-reload
systemctl enable --now disable-thp.service

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Step 5: Set System Limits for MongoDB

Configure system limits by creating a new file for MongoDB:

nano /etc/security/limits.d/mongodb.conf

Insert the following:

mongod soft nproc 64000
mongod hard nproc 64000
mongod soft nofile 64000
mongod hard nofile 64000

Modify the system’s sysctl settings:

nano /etc/sysctl.conf

Add these lines:

fs.file-max = 2097152
vm.max_map_count = 262144
vm.swappiness = 1

Apply the changes:

sysctl -p

Optionally, reboot the server to fully apply the changes:

reboot

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Step 6: Configure the MongoDB Repository

Create a repository file for MongoDB:

nano /etc/yum.repos.d/mongodb-org-7.0.repo

Add the following configuration:

[mongodb-org-7.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/9/mongodb-org/7.0/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://pgp.mongodb.com/server-7.0.asc

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Step 7: Install MongoDB

Update the repository list and install MongoDB:

dnf repolist
dnf install mongodb-org mongodb-mongosh

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Step 8: Start MongoDB Service

Enable and start MongoDB:

systemctl enable --now mongod
systemctl status mongod

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Step 9: Secure MongoDB

Step 9.1: Disable MongoDB Telemetry

Log in to MongoDB using mongosh:

mongosh

Run the following to disable telemetry:

disableTelemetry()

Step 9.2: Create an Admin User

Switch to the admin database and create an admin user:

use admin
db.createUser({
  user: "myAndeiAdmin",
  pwd: passwordPrompt(),
  roles: [
    { role: "userAdminAnyDatabase", db: "admin" },
    { role: "readWriteAnyDatabase", db: "admin" }
  ]
})

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Step 10: Enable Authentication for MongoDB

Uncomment the security option in the MongoDB configuration file:

nano /etc/mongod.conf

Add the following under the security section:

security:
 authorization: enabled

Restart MongoDB to apply the changes:

systemctl restart mongod

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Step 11: Access MongoDB with Authentication

Log in to MongoDB with authentication:

mongosh

Authenticate with the admin user:

use admin
db.auth("myAndeiAdmin", passwordPrompt())

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You have successfully installed and configured MongoDB 7.0 on AlmaLinux 9. This includes disabling THP, setting system limits, enabling authentication, and securing the MongoDB instance. MongoDB is now ready to manage your NoSQL database needs efficiently.

For enhanced performance and scalability, consider using Shape.Host’s Cloud SSD VPS services to run MongoDB smoothly.