مرکز آموزش

InfluxDB provides high-performance data ingestion, real-time querying, and flexible data retention policies. By following this guide, you’ll set up InfluxDB on your InfernoVM instance and be able to start storing and querying time-series data.

Step 1: Access Your InfernoVM Server

First, log in to your InfernoVM server using SSH:

Replace your-vps-ip with your server’s actual IP address.

Step 2: Add the InfluxDB Repository

InfluxDB isn’t always included in the default package repositories, so you’ll need to add the InfluxData repository.

1. For Debian/Ubuntu-based systems:

    

   curl -sL https://repos.influxdata.com/influxdb.key | sudo apt-key add - echo "deb https://repos.influxdata.com/$(lsb_release -si | tr '[:upper:]' '[:lower:]') $(lsb_release -sc) stable" | sudo tee /etc/apt/sources.list.d/influxdb.list

2. For CentOS/RHEL systems:

    

   sudo tee /etc/yum.repos.d/influxdb.repo <<EOF [influxdb] name=InfluxDB Repository - RHEL \$releasever baseurl=https://repos.influxdata.com/rhel/\$releasever/\$basearch/stable enabled=1 gpgcheck=1 gpgkey=https://repos.influxdata.com/influxdb.key EOF

Step 3: Install InfluxDB

After adding the repository, install InfluxDB with the following commands:

1. For Debian/Ubuntu-based systems:

    

   sudo apt update sudo apt install influxdb -y

2. For CentOS/RHEL systems:

    

   sudo yum install influxdb -y

Step 4: Start and Enable InfluxDB

To run InfluxDB and set it to start on boot, use the following commands:

To verify that InfluxDB is running, check the status:

Step 5: Configure InfluxDB

The main configuration file for InfluxDB is located at /etc/influxdb/influxdb.conf. Open this file to adjust settings, such as data retention policies, HTTP settings, and more.

1. Open the configuration file:

    

   sudo nano /etc/influxdb/influxdb.conf

2. Enable HTTP Access: Ensure that HTTP service is enabled to allow API calls.

   plaintext

    

   [http] enabled = true bind-address = ":8086"

   Adjust the bind-address if you want to restrict access to specific IP addresses.

3. Save and exit the configuration file.

4. Restart InfluxDB to apply the changes:

    

   sudo systemctl restart influxdb

Step 6: Configure Firewall (If Applicable)

Ensure port 8086 is open to allow connections to InfluxDB.

1. For UFW (Ubuntu):

    

   sudo ufw allow 8086/tcp sudo ufw reload

2. For Firewalld (CentOS/RHEL):

    

   sudo firewall-cmd --permanent --add-port=8086/tcp sudo firewall-cmd --reload

Step 7: Verify the Installation

You can verify the installation by running the following command:

If everything is set up correctly, it should return an HTTP 204 No Content status, which means InfluxDB is running.

Step 8: Create a Database in InfluxDB

To start storing data, create a new database. You can do this directly in the InfluxDB CLI.

1. Access the CLI:

    

   influx

2. Create a database:

   plaintext

    

   CREATE DATABASE my_database

   Replace my_database with your desired database name.

3. Verify the database was created:

   plaintext

    

   SHOW DATABASES

4. Exit the CLI by typing exit.

Step 9: (Optional) Set Up User Authentication

To secure your InfluxDB instance, enable authentication and create a user.

1. Enable Authentication in /etc/influxdb/influxdb.conf by setting:

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   [http] auth-enabled = true

2. Restart InfluxDB:

    

   sudo systemctl restart influxdb

3. Create an Admin User in the InfluxDB CLI:

    

   influx CREATE USER "admin" WITH PASSWORD 'your_password' WITH ALL PRIVILEGES exit

   Replace your_password with a secure password.

Step 10: Query Data and Monitor

You’re now ready to start sending data to InfluxDB! You can use tools like Telegraf for automated data collection or Grafana to visualize your data.

• Telegraf: A plugin-driven server agent for collecting metrics from various sources and storing them in InfluxDB.
• Grafana: Connect Grafana to InfluxDB to create real-time, customizable dashboards for data visualization.

Conclusion

Setting up InfluxDB on your InfernoVM server provides a powerful and flexible database for time-series data. With InfluxDB, you can efficiently manage and query large volumes of metrics, making it an excellent choice for monitoring and analytics solutions.