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Petro Kolosov kolosovpetro

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DevOps Engineer

112 followers · 76 following

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Achievements

Organizations

kolosovpetro/README.md

DevOps

📚 Table of Contents

Kubernetes
CI/CD
Security
Azure DevOps
Terraform
Monitoring
Automation
Documentation
Mathematics

⭐ Core Patterns (Must Remember)

blue-green-deployment-azure-app-service — blue/green, PaaS
aks-nginx-ingress-with-tls-certmanager — ingress, TLS automation
azure-vm-managed-identity-rbac-keyvault — identity, RBAC, KeyVault
terraform-template — reusable baseline

Kubernetes

aks-module-terraform — AKS, Terraform module
manual-kubernetes-cluster-from-scratch — bare-metal learning
aks-sealed-secrets-example — secrets

Networking & Access

Ingress & TLS

Integrations

CI/CD

Deployment Patterns

SSH / Nginx (.NET)

Frontend

Blue/Green

azure-load-balancer-vms
traffic-manager
azure-app-service — GitHub Actions, Azure DevOps

Build & Artifacts

Docker

Configuration Management

json-xml-config-transformations — GitHub Actions, Azure DevOps

Pipeline Performance

azdo-npm-cache — Azure DevOps

Security

Static Code Analysis

sonarcloud — Azure DevOps
trivy — Azure DevOps
snyk — Azure DevOps

Dynamic Code Analysis

OWASP ZAP:
https://github.com/kolosovpetro/movies-api-deployments-linux-iis-k8s-etc/blob/master/azure-pipelines/azdo-owasp-scan.yml

Azure DevOps

Packer images

Terraform

terraform-template

Compute

Networking

Azure App Gateway

VPN

Identity & Access

Cost Optimization

vm-start-stop

Monitoring & Observability

Automation

ssh-cicd-playground — GitHub Actions, Azure DevOps
azcopy-pipelines — GitHub Actions, Azure DevOps

Ansible

ansible-playground

Cloudflare

cloudflare-dns-records-management-powershell

Documentation

LaTeX templates

Other

osds-projects-list

Mathematics

Sums of Powers

Research

Unexpected polynomial identities arising from a classical interpolation problem (2025)
MinimalGoldbachPairsInPrimesCounting — Counting minimal Goldbach pairs in the set of prime numbers
AnEfficientMethodOfSplineApproximation — An efficient method for spline approximation
UnexpectedPolynomialIdentity — Discovery of an unexpected identity involving polynomials
DiscussionOnCoefficientsOfOddPolynomialIdentity — Discussion about coefficients in odd polynomial identity
ACuriosityAboutPolynomialInterpolation — A curiosity related to polynomial interpolation
OddPowerIdentityViaMultiplicationOfCertainMatrices — Odd power identity derived via matrix multiplication
ANovelProofOfPowerRuleInCalculus — A novel proof of the power rule in calculus
PolynomialIdentitiesInvolvingCentralFactorialNumbers — Polynomial identities involving central factorial numbers
RowSumsConjectureInRascalTriangle — A conjecture about row sums in the Rascal triangle
IdentitiesInRascalTriangle — Various identities discovered in the Rascal triangle
HistoryAndOverviewOfPolynomialP — A historical and structural overview of Polynomial P
FindingTheDerivativeOfPolynomialsViaDoubleLimit — Finding polynomial derivatives using a double limit approach
PolynomialIdentityInvolvingBTandFaulhaber — A polynomial identity involving Bernoulli triangles and Faulhaber's formula
AnotherApproachToGetDerivativeOfOddPower — An alternative method for deriving odd power functions
AStudyOnDynamicEquations — A study focused on dynamic equations and their behavior
OnTheBinomialTheoremAndDiscreteConvolution — Relation between the binomial theorem and discrete convolution
PolynomialIdentitiesInvolvingPascalsTriangleRows — Polynomial identities derived from Pascal's triangle rows
OnTheBertrandsPostulate — Insights and exploration of Bertrand's Postulate
RSAEncryptionExplained — Explanation and implementation of RSA encryption
DiffieHellmanKeyExchange — Practical explanation of the Diffie–Hellman key exchange
PlotsOfClosedForms — Closed forms of polynomials
Math.Shared — Shared repository
MathWritingCheatSheet — Auxiliary

Pinned Loading

azure-app-gateway-paas-backend-terraform azure-app-gateway-paas-backend-terraform Public

Terraform repository for deploying Azure Application Gateway with backend pools of Azure App Services. Supports HTTPS via TLS certificate. Automates DNS configuration using PowerShell scripts and C…

PowerShell 1
azure-app-gateway-vm-backend-terraform azure-app-gateway-vm-backend-terraform Public

Azure Application Gateway with Linux VMS backend

PowerShell
cloudflare-dns-records-management-powershell cloudflare-dns-records-management-powershell Public

PowerShell solution for managing Cloudflare DNS records: fetch Zone ID, retrieve all DNS records, create new records, update existing ones, delete records, or create/update. Includes SYNOPSIS docum…

PowerShell 1
prometheus-grafana-stack prometheus-grafana-stack Public

Deploying Prometheus server on Linux using Bash and Terraform remote-exec provisioners. Set up Linux & Windows VMs as scrape targets, automate Prometheus Node Exporters via Azure Custom Script Exte…

HCL
azure-vm-start-stop-automation-terraform azure-vm-start-stop-automation-terraform Public

Automates Azure VM start/stop using Azure Automation and PowerShell runbooks. Deploys Windows/Linux VMs, an Automation Account, and a runbook to update PowerShell modules. Dynamically schedules upd…

HCL
aks-private-endpoint-to-acr-terraform aks-private-endpoint-to-acr-terraform Public

AKS with ACR integration using Private endpoints and Terraform

HCL