How to Install Sensu on Fedora Server Latest

Sensu is a powerful monitoring tool that simplifies monitoring and troubleshooting of networks, applications and services. In this tutorial, we will outline the steps needed to install Sensu on a Fedora server.

Prerequisites

Before we proceed with the installation process, ensure that your Fedora Server is up-to-date by running the following command:

sudo dnf update -y

Additionally, ensure that your system meets the software requirements for running Sensu.

Step 1: Install Sensu Dependencies

Sensu depends on Redis, RabbitMQ, and Erlang. To install these dependencies, run the following command:

sudo dnf install redis rabbitmq-server erlang -y

Enable and start the services using the following command:

sudo systemctl enable --now redis rabbitmq-server

Step 2: Configure RabbitMQ

Once RabbitMQ server is installed, create a new user by running the following command:

sudo rabbitmqctl add_user sensu <password>

Next, you need to assign administrative rights to the user. To do this, run the following command:

sudo rabbitmqctl set_user_tags sensu administrator

Then, enable the RabbitMQ management console by running the following command:

sudo rabbitmq-plugins enable rabbitmq_management

Step 3: Install Sensu

You can install Sensu using the Sensu package repositories. To do this, run the following command:

sudo curl -s https://packagecloud.io/install/repositories/sensu/stable/script.rpm.sh | sudo bash

Once the repository is added, install Sensu Core by running the following command:

sudo dnf install sensu -y

Step 4: Configure Sensu

Sensu configuration files are located in /etc/sensu/conf.d/ directory. Create a new configuration file for RabbitMQ by running the following command:

sudo vi /etc/sensu/conf.d/rabbitmq.json

Add the following configuration:

{
 "rabbitmq": {
   "host": "127.0.0.1",
   "port": 5672,
   "vhost": "/",
   "user": "sensu",
   "password": "<password>"
 }
}

Then, create a new configuration file for Redis by running the following command:

sudo vi /etc/sensu/conf.d/redis.json

Add the following configuration:

{
 "redis": {
   "host": "127.0.0.1",
   "port": 6379
 }
}

Step 5: Start Sensu Services

Now, start the Sensu services by running the following commands in order:

sudo systemctl start sensu-client
sudo systemctl start sensu-server
sudo systemctl start sensu-api

Step 6: Verify the Installation

After starting the services, ensure that Sensu is working properly by verifying the Sensu logs:

sudo journalctl -u sensu-server
sudo journalctl -u sensu-client
sudo journalctl -u sensu-api

Conclusion

Sensu is now installed and ready to use. You can now monitor your network, applications, and services using the Sensu dashboard or the Sensu command-line interface.

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