Category Archives: Prometheus

Prometheus, a Cloud Native Computing Foundation project, is a systems and service monitoring system. It collects metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts if some condition is observed to be true.

EcoFlow: monitoring with Prometheus and Grafana

7 July 2024
 

 In continuation of the topic with Підготовка до зими 2024-2025: ДБЖ, інвертори, та акумулятори (in Ukrainian). Surprise – there’s even a Prometheus exporter for the EcoFlow – berezhinskiy/ecoflow_exporter! It looks really cool. I launched it, looked at it, and ran to write this post. It can be run in a couple of clicks with Docker… Read More »

Karpenter: its monitoring, and Grafana dashboard for Kubernetes WorkerNodes

18 February 2024
 

 We have an AWS Elastic Kubernetes Service cluster with Karpenter which is responsible for EC2 auto-scaling, see AWS: Getting started with Karpenter for autoscaling in EKS, and its installation with Helm. In general, there are no problems with it so far, but in any case we need to monitor it. For its monitoring, Karpenter provides… Read More »

AWS: CloudWatch – Multi source query: collecting metrics from an external Prometheus

13 December 2023
 

 Another interesting announcement from the last re:Invent is that CloudWatch has added the ability to collect metrics from external resources (see a very interesting report AWS re:Invent 2023 – Cloud operations for today, tomorrow, and beyond (COP227)). That is, we can now create graphs and/or alerts not only from the default metrics of CloudWatch itself,… Read More »

VictoriaMetrics: pushing metrics without Prometheus Pushgateway

18 November 2023
 

 In the Prometheus: running Pushgateway on Kubernetes with Helm and Terraform post I wrote about how to add Pushgateway to Prometheus, which allows using the Push model instead of Pull, that is, an Exporter can send metrics directly to the database instead of waiting for Prometheus or VMAgent to come to it. With VictoriaMetrics, it’s… Read More »

Grafana Loki: performance optimization with Recording Rules, caching, and parallel queries

19 August 2023
 

  So, we have Loki installed from the chart in simple-scale mode, see Grafana Loki: architecture and running in Kubernetes with AWS S3 storage and boltdb-shipper. Loki is runnings on an AWS Elastic Kubernetes Service cluster, installed with Loki Helm chart, AWS S3 is used as a long-term store, and BoltDB Shipper is used to… Read More »

VictoriaMetrics: deploying a Kubernetes monitoring stack

23 July 2023
 

  Now we have VictoriaMetrics + Grafana on a regular EC2 instance, launched with Docker Compose, see the VictoriaMetrics: an overview and its use instead of Prometheus. It was kind of a Proof of Concept, and it’s time to launch it “in an adult way” – in Kubernetes and all the configurations stored in a… Read More »

VictoriaMetrics: an overview and its use instead of Prometheus

11 June 2023
 

  I’ve heard a lot about VictoriaMetrics for a long time, and finally, it’s time to try it out. So, in a nutshell – VictoriaMetrics is “Prometheus on steroids” and is fully compatible with it – can use its configuration files, exporters, PromQL, etc. So for me who has always used Prometheus, the first question… Read More »

Prometheus: GitHub Exporter – creating own exporter for GitHub API

11 June 2023
 

  Recently, I got a new interesting task – to build a dashboard in Grafana that would display the status of our development process and its performance, that is, the efficiency of our DevOps processes. This is necessary because we are trying to build “true continuous deployment” so that the code automatically enters Production, and… Read More »

Prometheus: running Pushgateway on Kubernetes with Helm and Terraform

28 April 2023
 

  We have a lot of AWS Lambda functions in the project, and developers want to be able to send metrics to our Prometheus to add their own alerts and graphs in Grafana. For this, the functions use the Prometheus library, which allows these metrics to be created (see Prometheus: Building a Custom Prometheus Exporter… Read More »

GitLab: monitoring – Prometheus, metrics, and Grafana dashboard

12 March 2023
 

 So, let’s continue our journey with migrating GitLab to Kubernetes. See previous parts: GitLab: Components, Architecture, Infrastructure, and Launching from the Helm Chart in Minikube GitLab: Helm chart of values, dependencies, and deployment in Kubernetes with AWS S3 GitLab: міграція даних з GitLab cloud та процес backup-restore у self-hosted версії в Kubernetes In general, everything is working,… Read More »