The TIG Stack—comprising Telegraf, InfluxDB, and Grafana—is a powerful combination for collecting, storing, and visualizing time-series data. This guide will walk you through the installation and configuration process on a Rocky Linux system.
🛠️ Prerequisites
Before you begin, ensure you have:
- A server running Rocky Linux 8 or 9.
- A user account with sudo privileges.
- SELinux set to permissive or disabled.
- A stable internet connection.
🔄 Step 1: Update System Packages
Start by updating your system’s package index:
sudo dnf update -y
Reboot the system if necessary:
sudo reboot
🔥 Step 2: Configure Firewall
Allow necessary ports for InfluxDB and Grafana:
sudo firewall-cmd --permanent --add-port=8086/tcp
sudo firewall-cmd --permanent --add-port=3000/tcp
sudo firewall-cmd --reload
🗄️ Step 3: Install InfluxDB
Create the InfluxDB repository file:
sudo nano /etc/yum.repos.d/influxdb.repo
Add the following content:
[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
Save and exit the file. Then, install InfluxDB:
sudo dnf install influxdb2 -y
Start and enable the InfluxDB service:
sudo systemctl start influxdb
sudo systemctl enable influxdb
🧪 Step 4: Set Up InfluxDB
Run the initial setup for InfluxDB:
influx setup
You’ll be prompted to enter:
- Username
- Password
- Organization name
- Bucket name
- Retention period (in hours)
Confirm the settings to complete the setup.
📈 Step 5: Install Telegraf
Install Telegraf using the InfluxDB repository:
sudo dnf install telegraf -y
Start and enable the Telegraf service:
sudo systemctl start telegraf
sudo systemctl enable telegraf
⚙️ Step 6: Configure Telegraf
Edit the Telegraf configuration file:
sudo nano /etc/telegraf/telegraf.conf
Locate the [outputs.influxdb_v2] section and configure it as follows:
[[outputs.influxdb_v2]]
urls = ["http://localhost:8086"]
token = "your-influxdb-token"
organization = "your-org"
bucket = "your-bucket"
Replace your-influxdb-token, your-org, and your-bucket with the values you set during the InfluxDB setup.
Save and exit the file. Restart Telegraf to apply the changes:
sudo systemctl restart telegraf
📊 Step 7: Install Grafana
Add the Grafana repository:
sudo tee /etc/yum.repos.d/grafana.repo<<EOF
[grafana]
name=Grafana Repository
baseurl=https://packages.grafana.com/oss/rpm
repo_gpgcheck=1
enabled=1
gpgcheck=1
gpgkey=https://packages.grafana.com/gpg.key
EOF
Install Grafana:
sudo dnf install grafana -y
Start and enable the Grafana service:
sudo systemctl start grafana-server
sudo systemctl enable grafana-server
🌐 Step 8: Access Grafana Web Interface
Open your web browser and navigate to:
http://your-server-ip:3000
Log in with the default credentials:
- Username: admin
- Password: admin
You’ll be prompted to change the password upon first login.
🔌 Step 9: Configure Grafana Data Source
In Grafana:
- Navigate to Configuration > Data Sources.
- Click Add data source.
- Select InfluxDB.
- Configure the following:
- URL: http://localhost:8086
- Organization: Your InfluxDB organization name
- Token: Your InfluxDB token
- Default Bucket: Your InfluxDB bucket name
- Click Save & Test to verify the connection.
📈 Step 10: Create Grafana Dashboard
With the data source configured, you can now create dashboards:
- Navigate to Create > Dashboard.
- Click Add new panel.
- Build your queries to visualize metrics collected by Telegraf.
- Customize the visualization type and panel settings.
- Click Apply to add the panel to your dashboard.
✅ Conclusion
You’ve successfully installed and configured the TIG Stack on your Rocky Linux system. This setup enables efficient collection, storage, and visualization of time-series data, providing valuable insights into your system’s performance.
Meta Description: Learn how to install and configure the TIG Stack (Telegraf, InfluxDB, and Grafana) on Rocky Linux. Step-by-step guide with preserved commands for effective system monitoring.
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