Check out the presentation slides here: Prometheus + Grafana = Awesome Monitoring - Slide Share

This is the repository that you'll find all the files used in the demo presented!

Dependencies:

• Vagrant >= 1.8
• Unix/Linux Machine
• vagrant-hostmanager (Vagrant Plugin)
• vagrant-vbguest (Vagrant Plugin)

Checkout this docs to install vagrant and vagrant plugins:

• Vagrant Installation
• Vagrant Plugins

All the Prometheus and Grafana setup runs inside of the Vagrant so you can replicate easily on any machine.

Once you got everything needed you just need to clone the repository and enter into the directory

  git clone https://github.com/dalssaso/prometheus-grafana-devops-floripa.git
  cd prometheus-grafana-devops-floripa

After that you need to start vagrant vms

  vagrant up --provisioning

It will take a while to spin up, this will start the VMs and install everything you need for running the steps, including:

• Docker
• Docker Compose
• Share the files from the host machine and the vagrant machines
• Set the hostnames and communication between them

You can see all the steps in the Vagrantfile

After you get everything up and running you need to connect into the vagrant machine called prom-server

  vagrant ssh prom-server

Here comes the good part :)

All the commands that we'll need to run, we'll run inside of /vagrant directory

• Let's start the prometheus server

  docker-compose up -d prometheus

• After that we'll need to start the alertmanager

  docker-compose up -d alertmanager

• After that we'll start the grafana

  docker-compose up -d grafana

Now we're good to go to our browse and check the grafana and prometheus working

Open your browser and point to: http://prom-server.example.com:3000 to check grafana

Open your browser and point to: http://prom-server.example.com:9090 to check prometheus dashboard

Now to start getting some metrics we need to start the nodeexporter

  docker-compose up -d nodeexporter

Open a new terminal session and go to the repository folder and run:

  vagrant ssh node
  cd /vagrant
  docker-compose up -d nodeexporter

You'll start getting metrics from to servers!

Open Grafana Dashboard on your browser (http://prom-server.example.com:3000)

The default user and pass is: admin

Click in the Grafana Icon at Left Top Corner -> Data Source -> Add Data Source

Fill the form with the values above and then click Add

Click in the Home -> Import -> Upload .json file select the node_grafana_template.json

Select the Prometheus Datasource that we just added Click and Add and you're good to go

You have all set! Now you just need to play around :D

• alert.rules - configuration file when we configure the rules to the alerts
• alertmanager.yml - configuration file for the alertmanager service
• prometheus.yml - configuration file for the prometheus server service

For further learning of Prometheus check the its docs here

  cd prometheus-grafana-devops-floripa
  vagrant destroy -f