The next task I want to do with Golang is building a custom log collector that retrieves AWS Application Load Balancer logs from S3 and sends them to VictoriaLogs. Sure, we could simply use Vector.dev, like what I did for AWS VPC Flow Logs (see: Vector.dev introduction, logs from AWS S3, and VictoriaLogs integration). But… Read More »
Interfaces in Go allow you to describe access to data or behavior without providing concrete implementations inside the interface itself. In this way, we create a “common bus” that we can then use to “connect” external “systems.” In other words, an interface is an abstraction that defines a contract. The contract describes what can be… Read More »
Got a new task to monitor costs on OpenAI – to see how much each project spends per day, and send alerts to Slack if costs exceed a set threshold. I tried several existing exporters for the OpenAI API, but none provided cost metrics per project – so we’ll build one ourselves. To create the… Read More »
Perhaps everyone has used operators in Kubernetes, for example, PostgreSQL operator, VictoriaMetrics Operator. But what’s going on under the hood? How and to what are CustomResourceDefinition (CRD) applied, and what is an “operator”? And finally, what is the difference between a Kubernetes Operator and a Kubernetes Controller? In the previous part – Kubernetes: Kubernetes APIs,… Read More »
What is the pointer? Shortly, the pointer is a variable which stores an address of another variable, where some data is stored. A pointer example Let’s take the simplest example where a pointer is used: package main import “fmt” func main() { a := 1 b := &a fmt.Println(“A: “, a) fmt.Println(“B: “, b) fmt.Println(“B:… Read More »
The task is to write a tool which will be started from a Jenkin’s job by a cron and will check an organization’s public repositories list in the Github. A Docker-image build and a Jenkins job are described in the Jenkins: a job to check a Github organization’s public repositories list post. Then it has… Read More »