From the course: Kubernetes and Cloud Native Associate (KCNA) Cert Prep

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Using container images and registries

Using container images and registries - Kubernetes Tutorial

From the course: Kubernetes and Cloud Native Associate (KCNA) Cert Prep

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Using container images and registries

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- The next components that we need to talk about are the container images as well as the registries. So the container image is the foundation of the container. It is a package of software that includes everything that you need to run the application, and that is the code, the runtime, the system tools, the system libraries and settings. And that's the success of the container that you don't need anything else but the container image. It's a little bit like an application on a smartphone. The container image consists of a file system bundle and metadata, which describe what is used. And container images were introduced as such by Docker, and they are standardized by Open Containers Initiative. The fact that container images are standardized by OCI means that images can be used throughout. It doesn't really matter which container engine you are using to run a specific image. So images commonly are built by using a Dockerfile, which is also known as Containerfile. The word Dockerfile is…

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