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Arseny Zinchenko (setevoy)
Arseny Zinchenko (setevoy)

430 Followers

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Published in ITNEXT

·2 days ago

Kubernetes: Cluster Cost Monitoring — Kubernetes Resource Report and Kubecost

The very useful thing is to monitor how efficiently the cluster is being used, especially if applications are deployed by developers who do not delve into requests much and set inflated values ​​"in reserve". A reserve, of course, is needed - but simply requesting resources is a bad idea. For…

Kubernetes

11 min read

Kubernetes: Cluster Cost Monitoring — Kubernetes Resource Report and Kubecost
Kubernetes: Cluster Cost Monitoring — Kubernetes Resource Report and Kubecost
Kubernetes

11 min read


Published in ITNEXT

·Jan 15

Kustomize: managing Kubernetes manifests — an overview, and examples

Kustomize is a configuration management tool for Kubernetes that allows you to use common sets of manifests that can be changed for each specific environment/cluster, and can be an alternative to (or complement) Helm templates. The general concept of Kustomize is “where, what, and how”: “where” is a base manifest…

Helm

7 min read

Kustomize: managing Kubernetes manifests — an overview, and examples
Kustomize: managing Kubernetes manifests — an overview, and examples
Helm

7 min read


Published in ITNEXT

·Jan 15

BASH: using functions, with examples

In fact, a function in bash is a regular variable, but with more features. The main use is when the same code needs to be used several times and/or in different related scripts. Declaring and calling a function The function is declared like this: function function_name () { function body } Or: function one {…

Bash

7 min read

BASH: using functions, with examples
BASH: using functions, with examples
Bash

7 min read


Published in ITNEXT

·Jan 15

BASH: using loops — for, while, until, with examples

Brief description of the difference in the Bash loop types: for– will perform an action as long as there are objects to perform (for example, reading a stream from a stdin, file, or function); while- will perform an action as long as the condition is true; until– will be executed…

Bash

5 min read

BASH: using loops — for, while, until, with examples
BASH: using loops — for, while, until, with examples
Bash

5 min read


Published in ITNEXT

·Jan 7

Grafana Loki: alerts from Ruler and labels from logs

For general information about Grafana Loki, see the Grafana Loki: architecture and running in Kubernetes with AWS S3 storage and boltdb-shipper post. Among other components of the Loki, there is a separate service called ruler that is responsible for working with alerts that can be generated directly from logs. The…

Grafana

7 min read

Grafana Loki: alerts from Ruler and labels from logs
Grafana Loki: alerts from Ruler and labels from logs
Grafana

7 min read


Published in ITNEXT

·Jan 7

Grafana Loki: architecture and running in Kubernetes with AWS S3 storage and boltdb-shipper

The last time I worked with Loki when it was still in Beta, and it looked much simpler then than it does now. In the new project, there is no logging system at all, and since we all love the Grafana stack, we also decided to use Loki for logging. …

AWS

16 min read

Grafana Loki: architecture and running in Kubernetes with AWS S3 storage and boltdb-shipper
Grafana Loki: architecture and running in Kubernetes with AWS S3 storage and boltdb-shipper
AWS

16 min read


Published in ITNEXT

·Dec 11, 2022

Prometheus: Kubernetes endpoints monitoring with blackbox-exporter

The blackbox-exporter is an exporter that can monitor various endpoints — URLs on the Internet, your LoadBalancers in AWS, or Services in a Kubernetes cluster, such as MySQL or PostgreSQL databases. Blackbox Exporter can give you HTTP response time statistics, response codes, information on SSL certificates, etc. What are we…

Kubernetes

8 min read

Prometheus: Kubernetes endpoints monitoring with blackbox-exporter
Prometheus: Kubernetes endpoints monitoring with blackbox-exporter
Kubernetes

8 min read


Published in ITNEXT

·Dec 11, 2022

Terraform: modules, Outputs, and Variables

Eventually, I got to the modules in Terraform. Namely, I had to figure out how to transfer the values ​​of the variables between the two modules. So in this post, the most basic and simple examples of working with modules and their values ​​&& outputs. See more in the documentation…

Terraform

9 min read

Terraform: modules, Outputs, and Variables
Terraform: modules, Outputs, and Variables
Terraform

9 min read


Published in ITNEXT

·Dec 11, 2022

Kubernetes: ServiceAccount with AWS IAM Role for Kubernetes Pod

We have Grafana Loki for logs and need to connect an AWS IAM Role with AWS IAM Policy, which gives access to an AWS S3 bucket where Loki’s chunks and indexes will be stored. IAM roles for Kubernetes Pods will work in the same way as IAM roles to EC2…

AWS

5 min read

Kubernetes: ServiceAccount з AWS IAM Role для Kubernetes Pod
Kubernetes: ServiceAccount з AWS IAM Role для Kubernetes Pod
AWS

5 min read


Published in ITNEXT

·Nov 19, 2022

Linux: saving laptop’s battery energy

This time it became interesting to me — is it possible to somehow save the charge of the laptop battery? Not to say that it discharges quickly, it is enough for 5–6 hours of work, but it will not be too much, especially with the current power outages in Ukraine. …

Hardware

4 min read

Linux: saving laptop’s battery energy
Linux: saving laptop’s battery energy
Hardware

4 min read

Arseny Zinchenko (setevoy)

Arseny Zinchenko (setevoy)

430 Followers

Cloud Infrastructure and DevOps engineer

Following
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