Course 31 - Dive Into Docker | Episode 7: Building, Running, and Syncing Flask Applications

About this episode

This episode covers Docker CLI workflows, container management, and techniques for building and syncing Flask applications.

In this lesson, you’ll learn about: Docker CLI workflows, container management, live development, and debugging techniques1. Image Management & Docker CLI WorkflowYou start by working with Docker image lifecycle operations:🔹 Build Imagesdocker build -t myapp:1.0 . Uses Dockerfile instructions Leverages layer caching → faster rebuilds 🔹 Tagging Imagesdocker tag myapp:1.0 username/myapp:1.0 Used for version control Prepares image for sharing 🔹 DockerHub Workflow Login → docker login Push → docker push Pull → docker pull 👉 Enables sharing across machines and teams2. Running & Managing Containers🔹 Core Run Flagsdocker run -it -p 5000:5000 -e FLASK_APP=app.py myapp FlagPurpose-itInteractive terminal-pPort mapping-eEnvironment variables🔹 Detached Modedocker run -d myapp Runs container in background Frees terminal 🔹 Monitoring Containers docker logs → view logs docker stats → live performance metrics 🔹 Restart Policiesdocker run --restart on-failure myapp Automatically restarts crashed containers Improves reliability in production 3. Live Development with Volumes🔹 Volume Mountingdocker run -v $(pwd):/app myapp Syncs local code into container Enables real-time updates 🔹…

Topics covered

• Docker CLI workflows
• container management
• live development
• debugging techniques
• Flask applications

Keywords

• Docker
• Flask
• container management
• live development
• debugging
• image management
• DockerHub

Mentioned in this episode

Organizations: Docker, Flask

Products: DockerHub, myapp

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