What Are We Doing Here? Task. Copy the above docker-compose file contents and run docker-compose up -d to spin-up Prometheus server, Node Exporter and Grafana containers and run docker-compose ps to check the statuses of the containers. Dockers container images for Prometheus components are located under the prom organization from the Dockers Hub. Prometheus is written in Golang and can be consumed as single statically-compiled binary with no other dependencies. What it does is collect system metrics like cpu/memory/storage usage and then it exports it for Prometheus to scrape. Monitoring with Prometheus. Here you are also mounting the host directory file-system to the Grafana service, so it can access the Dashboard’s JSON from the host system.
The beauty of this is that it can be run as a docker container while also reporting stats for the host system.

We'll be using a series of YAML files to deploy everything out. The following command launches the container with the prometheus configuration. Let's define a Docker Compose which will let us keep our command-lines simple and repeatable: For the most part, it's pretty easy. The project also packages up the binary with a sensible configuration in a Docker container. In the previous post, we talked about running Nagios container on Raspberry Pi for the first time.Nagios is a free and open source monitoring and alerting service which basically collects the statistics of your server using agents like nrpe, check_mk or using SNMP and sends the alert if the metric value is above the predefined threshold. For running Prometheus we build a custom Docker image and run it as a Container. It is a great Coming back from Monitorama, I had a chance to sit back and start playing with some tools to see how they worked. Prometheus and Docker: Monitoring Your Environment.
Now on the same instance above where Grafana-server is running it’s time to install Prometheus.

It is therefore very easy to instrument any system that can run docker containers. Prometheus can run as a Docker Container with a UI available on port 9090. Prometheus uses the configuration to scrape the targets, collect and store the metrics before making them available via API that allows dashboards, graphing and alerting. Tutorial: Learn how to run Prometheus on Kubernetes.

We are installing the Prometheus using the Dockers, so make sure that we already installed Docker on the CentOS 7 machine. BY Erik Jacobsen. Run Prometheus in Docker.

Step 3. Prometheus is a pretty ubiquitous tool in the monitoring space, it's pretty easy to spin up, and is open-source.

June 10, 2019.