Learn DOCKER with Real Code Examples

Docker is open-source (Apache 2.0) with commercial support

Reduces deployment friction and operational costs

Enables rapid CI/CD for enterprise apps

Supports multi-cloud deployments efficiently

Enterprise Docker Enterprise adds advanced security and management features

Better integration with Kubernetes and cloud-native tools

Enhanced security scanning and compliance features

Improved developer tooling for builds and debugging

Smaller and faster image layers

Expanded support for Windows, macOS, and ARM architectures

Applications that require full VM isolation

Legacy software tied to specific OS configurations

When minimal containerization overhead is unnecessary

GUI-heavy desktop apps

When the team lacks containerization expertise

Docker enables containerized applications for portability and consistency.

Supports building, shipping, and running containers efficiently.

Optimized for microservices, CI/CD, and cloud-native apps.

Provides tooling for orchestration, networking, and storage.

Strong ecosystem, community, and integration options.

Is Docker open-source? -> Yes, Apache 2.0 license.

Can Docker run on Windows/macOS? -> Yes, via Docker Desktop.

Does Docker replace VMs? -> No, it complements them with lightweight containers.

Can Docker containers communicate with each other? -> Yes, via Docker networks.

How to persist data in Docker? -> Use volumes or bind mounts.