DevOps – en.vmik.net

Using Prometheus snmp-exporter

Recently I’ve been asked to create a dashboard in Grafana, displaying the power usage of the Smart PDU Sentry3.

Although most of the modern systems have a metric page or a written exporter, which can be simply gathered by Prometheus, most of the old systems or devices are still answering SNMP queries and do not have exposed metrics or an exporter.

In this situation we can use the Prometheus SNMP exporter, which acts like a proxy between Prometheus and the SNMP device. The Prometheus SNMP exporter exposed metrics to the Prometheus server based on the SNMP queries to the requested device.

Learning Terraform using Nutanix Terraform Provider

This year I decided to learn a bit about automation and infrastructure as code (IAC), and in this article, I would demonstrate some Terraform basics I have learned using the Nutanix Terraform Provider.

During this article, we will learn how to:
1. Install Terraform;
2. Connect Nutanix Terraform Provider;
3. Upload cloud image to the Nutanix Cluster;
4. Deploy a Nutanix Subnet, including IP-address Management;
5. Deploy a VM and connect it to the provisioned subnet;
6. Run a little cloud-init script to create a user in the deployed VM.