{"podcast":{"title":"CyberCode Academy","slug":"cybercode-academy-7578615","podcast_index_feed_id":7578615,"rss_url":"https://www.spreaker.com/show/6790974/episodes/feed","website_url":"https://www.spreaker.com/podcast/cybercode-academy--6790974","image_url":"https://d3wo5wojvuv7l.cloudfront.net/t_rss_itunes_square_1400/images.spreaker.com/original/5f51ccc7b22fdba95149ffa6346f1533.jpg","author":"CyberCode Academy","episode_count":297,"summary":"Welcome to CyberCode Academy — your audio classroom for Programming and Cybersecurity. 🎧 Each course is divided into a series of short, focused episodes that take you from beginner to advanced level — one lesson at a time. From Python and web development to ethical hacking and digital defense, our content transforms complex concepts into simple, engaging audio learning. Study anywhere, anytime — and level up your skills with CyberCode Academy. 🚀 Learn. Code. Secure. You can listen and download our episodes for free on more than 10 different platforms: https://linktr.ee/cybercode_academy","last_synced_at":"2026-07-13T14:17:20.596630+00:00","page_url":"https://stenobird.com/podcast/cybercode-academy-7578615"},"episode":{"title":"Course 31 - Dive Into Docker | Episode 5: From First Run to Building Images","slug":"course-31-dive-into-docker-episode-5-from-first-run-to-building-images","published_at":"2026-04-24T06:00:03+00:00","page_url":"https://stenobird.com/podcast/cybercode-academy-7578615/course-31-dive-into-docker-episode-5-from-first-run-to-building-images","show_page_url":"https://stenobird.com/podcast/cybercode-academy-7578615","url":"https://www.spreaker.com/episode/course-31-dive-into-docker-episode-5-from-first-run-to-building-images--71307386","audio_url":"https://dts.podtrac.com/redirect.mp3/api.spreaker.com/download/episode/71307386/the_mechanics_of_docker_containers.mp3","summary":"In this lesson, you’ll learn about: Docker basics, images vs containers, and how Docker builds applications1. Your First Docker Run (Hello World) You start by running a simple container using Docker Behind the scenes: Docker CLI sends a command Docker Daemon processes it Image is pulled from Docker Hub Key insight: Docker only downloads missing layers → future runs are much faster 2. Docker Images vs Containers🧱 Docker Image (Blueprint) Immutable (cannot be changed) Contains: File system Dependencies Configuration 👉 Think of it like a class🚀 Docker Container (Running Instance) A live instance of an image Can be started, stopped, deleted 👉 Think of it like an object (instance)3. Immutability in Practice Using Alpine Linux (~2MB): Run a container Make changes inside it Stop the container Result: Changes are lost 👉 Why? Containers are ephemeral by design 4. Docker Ecosystem (Images & Registries)🔹 Docker Hub Main public registry for images Contains: Official images (trusted) Community images 🔹 Tags (Versioning) Example: python:3.11 nginx:latest Help you: Control versions Ensure consistency 🔹 CI/CD Integration Docker integrates with tools like: GitHub Features: Automated builds Webhooks Continuous delivery pipelines 5. Building Images with Dockerfiles Instead of manual setup, use: Dockerfile = Recipe Defines: Base image Dependencies Commands to run Benefits: Reproducible builds Version-controlled environments Easy collaboration 6. Image Layers (Why Docker is Fast) Images are built in layers: Each instruction in a Dockerfile = layer Advantages: Reuse unchanged layers Faster builds Smaller downloads (only differences) 7. Why This Matters Enables: Rapid development Consistent environments Easy deployment Foundation for: Microservices CI/CD pipelines Cloud-native apps Key T…","meta_description":"In this lesson, you’ll learn about: Docker basics, images vs containers, and how Docker builds applications1. Your First Docker Run (Hello World) You star…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1316,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/cybercode-academy-7578615/episodes/course-31-dive-into-docker-episode-5-from-first-run-to-building-images/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/cybercode-academy-7578615/course-31-dive-into-docker-episode-5-from-first-run-to-building-images.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}