Container Security for SREs: The Practical Checklist
Security Is Part of Reliability SREs think about availability, latency, and throughput. But a security breach is just another type of incident — oft…
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Understanding Kubernetes: A Beginner's Guide to Container Orchestration
If you have already explored Docker , you know how convenient containers are. You package your application, dependencies, and environment into a nea…
Docker Demystified: The Ultimate Guide to Containers and Architecture
If you have ever dealt with the nightmare of "it works on my machine but crashes in production," you have felt the pain that containerization was bu…
Running a Container Without Docker (Bootstrapping with the Filesystem and a Bundle)
Docker is convenient, but it's also a thick layer of abstraction sitting on top of a handful of Linux kernel primitives. If you strip away the daemo…
Docker Networking Explained: Bridges, DNS and Why localhost Breaks
A mental model for Docker networks: how containers find each other, when to publish ports, and the difference between expose and ports. The mental m…
Docker in Production: What Changes When Containers Meet Reality?
post 8: You run a container. It starts successfully. The application works. So… is it production-ready? Not necessarily. The real test of a producti…
Install Docker Engine on Debian
Install Docker Engine on Debian Docker Engine provides the daemon, CLI, and runtime needed to build and run containers on Debian. This guide install…
Kubernetes Architecture
Control Plane (Master) & Worker Nodes Control Plane components: API Server Scheduler Control Manager etcd Worker Node components: Container Runt…
A container per job, without a daemon
Some workloads want an image each. A build that needs a specific toolchain, a test that needs a specific database client, a task whose dependencies…
Taking the network away from a Cloud Run job
If you execute other people's code, at some point you have to decide what it is allowed to reach. Mine should reach nothing: no package registry, no…
Three Silent Failures Between You and Sidecar Injection
Running kubectl label deployment my-app pandocore.io/inject=enabled modifies the Deployment's top-level metadata.labels , not spec.template.metadata…
Docker Compose: Run Your Whole App with One Command
From multiple docker run commands to one declarative YAML file. A real application rarely consists of just one container. You might have: Web App ↓…
Automatically scale LXC containers resources on Proxmox hosts
LXC AutoScale is an async resource management daemon for Proxmox environments. Install via oneliner, as systemd service or Docker. It automatically…
Как я написал PID 1 для контейнеров на чистом ассемблере: x86-64 и ARM64
Не потому, что контейнерному миру срочно нужен ещё один init. Есть Tini, есть docker run --init , и для большинства production-сценариев я бы по-пре…
Automating the Workflow: My Journey from Jenkins Freestyle Jobs to Declarative Pipelines
The Infrastructure: Setting Up Jenkins on AWS The foundation of this project began by provisioning an Ubuntu EC2 instance on AWS. Setting up the env…
Vox Pupuli Container Statistics
Hello everyone! I am excited to share some updates regarding container statistics. We now have a page where we display the statistics for all our co…
7 Docker Compose Patterns Every Devops Engineer Should Know
Docker compose has become one of the most widely used tools for running multi container applications, with a simple YAML file, engineers can spin up…
Omdia's 2026 supply-chain survey puts the annual-incident rate at 77 percent
Seventy-seven percent of surveyed organizations experienced a software supply chain incident in the twelve months before Omdia ran its 2026 survey,…
How I added initContainers and env vars to every deployment without Kyverno
TL;DR We needed to modify deployments in the background and decided against Kyverno (too big). Instead a leightweight mutating Webhook called "kTail…
Supercharging Kubernetes CLI Productivity with Kubernetes_auto_prompt_cli
Managing Kubernetes clusters through standard CLI tools often requires remembering long command syntaxes, namespace flags, and resource names. To so…
Docker For beginners
In the world of software development, deploying applications can be complex. Before the era of Docker, companies often struggled with ensuring that…
How the Amazon ECS deployment circuit breaker detects failures
How Amazon ECS Deployment Circuit Breaker Detects Failures Amazon ECS (Elastic Container Service) uses a deployment circuit breaker to automatically…
FreeBSD Proton Mail Split Address with official client
FreeBSD I have known about BSD ever since I got into GNU/Linux. I remember going and trying BSD and different Linux Distros and even SUN systems. Ju…
Docker: Packaging Applications with Their Dependencies
Docker: Packaging Applications with Their Dependencies A practical guide to Docker — the container platform that packages an application together wi…
Docker Storage Mounts and Best Practices
To avoid bloated Docker images and containers, it is a best practice to store persistent data outside the container's writable layer by using storag…
Getting Real Numbers Into the VPA Model: The Commands and Tools
The companion post to this one, "What the VPA Recommender Is Actually Computing," walks through the decay-weighted percentile math, the OOM bump, an…
Why Google Gave Away Kubernetes for Free (And Changed Cloud Computing Forever)
Imagine spending over a decade building one of the world's most advanced distributed systems. It powers: YouTube Gmail Google Search Google Maps It…
Docker for the Developer Who Actually Has to Ship: Secrets, Multi-Stage Builds, Live Reload, and Why Your Container Just Died
Nephew has Docker basics down now — images, containers, volumes, networks, Compose. But the real world keeps handing him things the fundamentals did…
Когда Kubernetes нельзя, а Ansible боль: чего я не договорил про Horchestra
Настоящая проблема — не отсутствие одной платформы, а разнородность сред, в которые нужно доставить одно и то же приложение. Каждая среда тянет дост…
Horchestra: когда Kubernetes нельзя, а Ansible становится второй кодовой базой
Последние несколько лет я занимаюсь разработкой enterprise-продуктов. И относительно недавно понял одну вещь. Самая сложная часть проекта — вовсе не…