What is the difference between Docker Swarm and Kubernetes?
Docker Swarm and Kubernetes are both container orchestration tools, but they differ in complexity and features. Swarm is simpler and easier to set up, while Kubernetes offers more advanced functionalities for managing large-scale applications.
What is a layer in Docker?
A layer in Docker refers to a single set of file changes in an image. These layers are stacked on top of each other, optimizing storage and enabling efficient image management.
What is a multi-stage build in Docker?
A multi-stage build in Docker allows developers to use multiple FROM statements in a single Dockerfile. This technique optimizes image size by separating the build environment from the final product.
What is Docker EE and Docker CE?
Docker Enterprise Edition (EE) is a commercial version offering advanced features for security and management, while Docker Community Edition (CE) is the open-source, free version geared towards individual developers.
What is a read-only container in Docker?
A read-only container in Docker is a container that restricts write access to its filesystem. This enhances security and stability, making it ideal for running unchangeable applications.
What are ephemeral containers in Docker?
Ephemeral containers in Docker are temporary instances designed for debugging and testing. They allow developers to inspect running applications without altering the original container.
What is a namespace in Docker?
A namespace in Docker is a fundamental feature that provides isolation for containers. It allows each container to have its own view of system resources, enhancing security and resource management.
What is Docker Bench for Security?
Docker Bench for Security is an open-source script that automates security checks for Docker containers. It assesses container configurations against best practices, helping ensure a secure deployment environment.
What is Docker Content Trust?
Docker Content Trust (DCT) enhances the security of container images by enabling digital signatures. It ensures that only trusted images are pulled and run, safeguarding the deployment process.
How do I install Docker on my operating system?
To install Docker on your operating system, visit the official Docker website, download the appropriate installer for your OS, and follow the step-by-step instructions provided.