Key Features
Containerization
Package apps and dependencies into isolated containers for consistency and portability.
Cross-Platform Deployment
Run containers on any OS or cloud provider without modification.
Docker Compose
Define and run multi-container applications using simple YAML files.
DevOps Integration
Integrate with CI/CD pipelines, Kubernetes, and monitoring tools.
How It Works
Install Docker
Download Docker Desktop for Windows, macOS, or Linux.
Write Dockerfile
Define how your app should be built and run inside a container.
Build Image
Use `docker build` to create a reusable image from your Dockerfile.
Run Container
Use `docker run` to start your app in an isolated environment.
Deploy & Scale
Push images to Docker Hub and deploy using Kubernetes or cloud services.
Code Example
# Sample Dockerfile
FROM node:18
WORKDIR /app
COPY . .
RUN npm install
CMD ["npm", "start"]Use Cases
Microservices Architecture
Deploy isolated services with independent lifecycles and scaling.
Dev/Test Environments
Create reproducible environments for development and QA.
CI/CD Automation
Integrate Docker into build pipelines for consistent deployments.
Cloud-Native Apps
Package and deploy apps to AWS, Azure, GCP, or Kubernetes clusters.
Integrations & Resources
Explore Docker’s ecosystem and find the tools, platforms, and docs to accelerate your workflow.
Popular Integrations
- Docker Hub, Docker Compose
- Kubernetes, Helm
- GitHub Actions, GitLab CI
- VS Code, IntelliJ
- AWS, Azure, GCP
Helpful Resources
FAQ
Common questions about Docker’s capabilities, usage, and ecosystem.