Devops

Understanding the Need for Function App Cleanup In cloud environments, deprecated or unused resources can accumulate over time, leading to unnecessary costs and management overhead. This guide focuses on implementing automated cleanup of stopped Azure Function Apps that haven’t been active for extended periods. Identifying Inactive Function Apps First, we’ll create a PowerShell script to identify Function Apps that have been stopped for more than 45 days: Get all Function Apps in specified subscription $functionApps = Get-AzFunctionApp ...

The Wake-Up Call: CVE-2025-9074 A critical vulnerability recently discovered in Docker Desktop (CVE-2025-9074) serves as a sobering reminder that containers are not the security boundary many developers believe them to be. With a CVSS score of 9.3, this vulnerability allowed malicious containers to escape their supposed isolation and compromise the host system through a surprisingly simple attack vector. The Bottom Line Up Front: CVE-2025-9074 demonstrates that the widespread belief “Docker = isolated = secure” is not just wrong—it’s dangerously wrong. This misconception puts production Kubernetes environments at risk when teams fail to consider the underlying Linux kernel and operating system security implications. ...

Horizontal Pod Autoscaling (HPA) is a crucial component for maintaining application performance and resource efficiency in Kubernetes clusters. This guide explores implementation best practices and common pitfalls to avoid. Understanding HPA Fundamentals HPA automatically scales the number of pods in a deployment based on observed metrics. While CPU and memory are common scaling triggers, custom metrics can provide more meaningful scaling decisions. Key Metrics Selection When choosing metrics for HPA, consider: ...

Introduction In cloud environments, accidentally overwriting production files can be a nerve-wracking experience. This post walks through the process of recovering individual files from Azure VM backups. Prerequisites Azure subscription with VM backup enabled Access to Azure Portal Backup retention period covering the desired recovery point File-Level Recovery Process 1. Identify the Recovery Point First, locate the specific backup point before the file was modified: Navigate to the Azure Portal Select the VM in question Go to “Backup & restore” Choose “File Recovery” Select a recovery point prior to the file modification 2. Mount the Recovery Point Mount the recovery drive Azure will provide specific mounting instructions One of the nice things about Azure is it builds a binary that does all the mounting work. Other cloud providers often require you to do all this work manually, and also remember to clean up the cloned disks later, and Azure makes all that easy. ...