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Articles tagged with #docker
1. What is Docker? Answer:Docker is an open-source containerization platform used to build, package, and run applications inside lightweight, portable containers. It helps manage the entire lifecycle of containers — building images, running container...
Bridge vs Host vs Overlay Networks Secure Containers Using Custom Bridge Network 1️⃣ Introduction — Why Docker Networking? Docker Networking (or container networking) enables communication: Between containers. Between containers and the host syst...
1️⃣ The Problem — Why Persistent Storage Is Needed Containers are ephemeral (temporary).When a container stops or crashes, all data inside it is lost. 🧩 Example 1: NGINX Logs Lost After Container Stops Suppose you run an NGINX container that stores...
🚀 Reduce Image Size by 800% and Improve Security 🎯 1. Objective In this session, we’ll learn: The concept of Multi-Stage Docker Builds The concept of Distroless (Destroyless) Images Both concepts are closely related — using distroless images e...
🎯 1. Objective Before working on real DevOps projects or advanced Docker concepts, it’s essential to first understand: What containers are How they differ from virtual machines (VMs) What Docker and Buildah do in the container world This sessio...
Docker Volumes In Docker, a volume is a mechanism for persisting data generated and used by containers. Volumes are stored on the host filesystem outside the container's file system, making them an ideal solution for managing persistent data in a con...
