How to run two different Grafana client agents on a single Linux host

Running two different Grafana client agents on a single Linux host with unique configuration files requires careful setup. Here's a step-by-step guide to achieving this, including creating two different users, one with sudo privileges and the other without.

Step 1: Create Two Users

First, create two users. One user will have sudo privileges, and the other will not.

For the user with sudo privileges:

sudo useradd grafana_sudo
sudo passwd grafana_sudo
sudo usermod -aG wheel grafana_sudo

For the user without sudo privileges:

sudo useradd grafana_nosudo
sudo passwd grafana_nosudo

Step 2: Install Grafana Agent

Download and install the Grafana Agent as per your system's architecture. You can follow the official Grafana Agent installation guide for detailed instructions.

Step 3: Create Unique Configuration Files

Create two different configuration files for the two Grafana Agents.

For the user with sudo privileges:

sudo mkdir /etc/grafana_sudo
sudo nano /etc/grafana_sudo/agent-config.yaml

For the user without sudo privileges:

sudo mkdir /etc/grafana_nosudo
sudo nano /etc/grafana_nosudo/agent-config.yaml

You can then add the specific configurations for each agent in these files.

Step 4: Create Systemd Service Files

Create two systemd service files to manage the Grafana Agents.

For the user with sudo privileges:

sudo nano /etc/systemd/system/grafana-agent-sudo.service

Add the following content:

[Unit]
Description=Grafana Agent (sudo)
After=network.target

[Service]
User=grafana_sudo
ExecStart=/usr/local/bin/agent-linux-amd64 -config.file /etc/grafana_sudo/agent-config.yaml

[Install]
WantedBy=multi-user.target

For the user without sudo privileges:

sudo nano /etc/systemd/system/grafana-agent-nosudo.service

Add the following content:

[Unit]
Description=Grafana Agent (no sudo)
After=network.target

[Service]
User=grafana_nosudo
ExecStart=/usr/local/bin/agent-linux-amd64 -config.file /etc/grafana_nosudo/agent-config.yaml

[Install]
WantedBy=multi-user.target

Step 5: Enable and Start the Services

Enable and start both services:

sudo systemctl enable grafana-agent-sudo
sudo systemctl start grafana-agent-sudo

sudo systemctl enable grafana-agent-nosudo
sudo systemctl start grafana-agent-nosudo

Now, you have two different Grafana client agents running on a single Linux host using unique configuration files, with one user having sudo privileges and the other not. You can monitor the status of both agents using:

sudo systemctl status grafana-agent-sudo
sudo systemctl status grafana-agent-nosudo

Make sure to replace the paths and filenames with the actual paths where the Grafana Agent binary and configuration files are located on your system.