Image

Definitions

1. In containerization, a lightweight, standalone, read-only template containing an application and all its dependencies, from which containers are instantiated. Docker images are built from Dockerfiles and stored in registries.

   In plain English: A snapshot of an application and everything it needs to run, packaged up so you can spin up identical copies anywhere — like a recipe that always produces the same dish.

   Example: "The production image is 47 MB thanks to multi-stage builds — down from 1.2 GB when we started."

Related Terms

• Build Context
• Container
• Orchestration
• Container Image
• Container Network
• Container Orchestration
• Container Registry
• Container Runtime
• Mount Point
• Multi-Arch Build
• Multi-Stage Build
• Resource Limit
• Test Container
• Volume
• Volume Mount
• Moby