A Prometheus docker-compose stack

Here's a quick start to stand-up a Prometheus stack containing Prometheus server, container-exporter, and the Prometheus Dashboard to monitor your Docker infrastructure.

##Pre-requisites Before we get started installing the Prometheus stack. Ensure you install docker-compose on your Docker host machine.

##Installation & Configuration Clone the project locally to your Docker host.

If you would like to change which targets should be monitored or make configuration changes edit the /prom/prometheus.yml file. The targets section. The targets section is where you define which componets(data exporters) should be monitored by Prometheus. The names defined in this file are actually sourced from the service name in the docker-compose file. If you wish to change names of the services change the "container_name" parameter in the docker-compose.yml file.

Once configurations are done let's start it up. From the /prometheus project directory run the following commands:

$ docker-compose up
$ docker-compose start

The Prometheus stack should now be running. To access the different components:

Prometheus: http://<Host IP Address>:9090> for example http://192.168.10.1:9090

Prometheus Dashboard: http://<Host IP Address>:3000 for example http://192.168.10.1:3000

Post Configuration

Now we need to connect the Prometheus Dashboard to the Prometheus installation. Access the Prom Dash as mentioned above.

• Click the "Server" Menu at the top
• Click "New Server"
• Input desired name, Prometheus server IP and port (http://<Host IP Address>:9090> ) and select Prometheus for server type.

Configure Dashboards

Let's create our first Dashboard. Head over up to the Dashboard menu. First, create a new directory. Next, create a new Dashboard.

Here's a quick Dashboard I put together as an example.

Sample Dashboard Queries

The queries used in the example dashboard are located here - Dashboard Queries

ToDo

• Integrate and configure Alerting.
• Make a separate stack with just cAdvisor as the metric collection