Docker
Docker is how we package applications so they behave consistently from local development to production. It gives teams predictable environments, simplifies deployments, and keeps application dependencies isolated from the infrastructure running them.
Why we use it
- /Consistent environments across development and production
- /Applications and dependencies stay isolated and reproducible
- /Simpler deployment across different cloud platforms
- /Strong foundation for automated CI/CD workflows
When we reach for it
- /Backend services and web applications
- /Microservice and container-based architectures
- /Projects that need reliable development environments
- /Applications deployed to Kubernetes or managed container platforms
We keep container images small, predictable, and focused on a single responsibility. Multi-stage builds, explicit dependency versions, health checks, and environment-based configuration help keep deployments reproducible and easier to operate.
Containers are built and tested through CI/CD rather than manually prepared for production. For larger systems, we combine Docker with Kubernetes and infrastructure-as-code so the same application artifact can move safely between environments.
Common questions
What is Docker used for?+
Docker is used to package applications and their dependencies into containers that run consistently across different environments. This makes development, testing, deployment, and scaling more predictable.
Why use Docker for software development?+
Docker reduces differences between local, staging, and production environments. Developers work with the same application dependencies and configuration structure, which helps prevent environment-specific issues and simplifies onboarding.
Is Docker suitable for production applications?+
Yes. Docker is widely used in production for web applications, APIs, background workers, and microservices. For larger systems, it is commonly combined with orchestration platforms such as Kubernetes.
What is the difference between Docker and Kubernetes?+
Docker packages and runs applications in containers, while Kubernetes manages large numbers of containers across infrastructure. Kubernetes handles tasks such as scheduling, scaling, service discovery, and automated recovery.
Can Docker be used with AWS and Azure?+
Yes. Docker containers can run across AWS, Azure, and other cloud platforms. We use Docker to keep application packaging consistent while choosing the cloud infrastructure that best fits the product.
How do you use Docker in your projects?+
We use Docker from development through production. Images are built automatically through CI/CD pipelines, dependencies are versioned explicitly, and production containers include appropriate health checks, configuration, and security practices.