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Day 15: The Container Revolution — Getting Started with Docker 🐳

5h ago · 3 min read · Welcome to Week 3! We’ve mastered infrastructure, automation, and observability. Now, it’s time to change how we package and deploy software. Today, we leave "Virtual Machines" behind and enter the wo

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SWSafdar Wahidcloudwithsw.hashnode.dev

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Multi-Environment Deployment Strategies for Kubernetes

20h ago · 7 min read · TLDR ; Kustomize and Helm are the leading tools for managing environment-specific configurations in 2026 Automated promotion from staging to production reduces manual errors and speeds delivery Ext

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PKPrashantkumar Khatrirootcause.hashnode.dev

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The OCI Spec: What Actually Defines a Container?

22h ago · 12 min read · TL;DR The Open Container Initiative (OCI) spec is a set of three documents: the Image Spec, the Runtime Spec, and the Distribution Spec; that define exactly what a container image is, what a container

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SPSanchit Panditsanchitpandit.hashnode.dev

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Dockerfile Security Best Practices: A Complete Guide to Building Secure Docker Images

1d ago · 3 min read · Dockerfile security is a critical part of container security. Even if you use hardened base images, insecure Dockerfile practices can introduce vulnerabilities into your environment. In this guide, yo

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MBMatt Browncloudsecburrito.com

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From Capabilities to AppArmor: Layering Linux Runtime Security

2d ago · 10 min read · Over the past year I have written ad nauseum about Linux security primitives. And of course quite a bit of time has been dedicated to how these connect into Kubernetes. Some of the cooler aspects incl

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PKPrashantkumar Khatrirootcause.hashnode.dev

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Why cgroups v2 Replaced cgroups v1

2d ago · 10 min read · TL;DR cgroups v1 was built one subsystem at a time, by different teams, with no unified design. Each resource controller - CPU, memory, I/O, lived in its own independent hierarchy. A process could be

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HHasnainhasnainwaris.hashnode.dev

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Kubernetes Core Concepts: Security

3d ago · 8 min read · This post dives into security, one of the most critical aspects of running a production cluster. From authentication and authorization to network policies and securing containers, understanding these

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VCVivian Chiamaka Okosevivianokose.hashnode.dev

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I Ran 9 Kubernetes Labs on a Local KIND Cluster — Here Is Everything I Learned

3d ago · 9 min read · By Vivian Chiamaka Okose | DevOps Engineer If you have been putting off learning Kubernetes because it feels overwhelming, this post is for you. This week I completed 9 hands-on labs covering the cor

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HRHritik ranjanhritikdevopsjourney.hashnode.dev

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DevOps Week 4: Containers & Docker Fundamentals/Project Management

3d ago · 16 min read · DevOps Project Management & First Week 🔹 1. Why Project Management is Important in DevOps? 👉 DevOps is not just coding or tools 👉 You also need to: Track tasks Manage work Collaborate with te

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PKPrashantkumar Khatrirootcause.hashnode.dev

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What Is a Linux Namespace, Really? All 7, Explained.

4d ago · 14 min read · TL;DR A Linux namespace wraps a global kernel resource and makes a process believe it has its own private copy. There are 7 types. Together, they are the entire reason containers exist, not Docker, no

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#containers

Trending tags this week

Day 15: The Container Revolution — Getting Started with Docker 🐳

Multi-Environment Deployment Strategies for Kubernetes

The OCI Spec: What Actually Defines a Container?

Dockerfile Security Best Practices: A Complete Guide to Building Secure Docker Images

From Capabilities to AppArmor: Layering Linux Runtime Security

Why cgroups v2 Replaced cgroups v1

Kubernetes Core Concepts: Security

I Ran 9 Kubernetes Labs on a Local KIND Cluster — Here Is Everything I Learned

DevOps Week 4: Containers & Docker Fundamentals/Project Management

What Is a Linux Namespace, Really? All 7, Explained.