containerID
ContainerID is a generic term used in containerization to refer to the unique identifier assigned by a container runtime to a container instance. The ID provides a stable reference for managing, querying, and debugging the container during its lifecycle. The exact format and semantics vary by runtime, but the concept remains the same: a runtime-generated string that uniquely identifies a container on a host.
In Docker, the container ID is a hexadecimal string. The full ID is 64 characters, but the
Within Kubernetes and other orchestrators, containers run inside Pods and obtain IDs from the container runtime
Using a container ID in practice involves runtime tools. In Docker, commands such as docker ps, docker
Notes: container IDs are not universally portable across hosts or clusters; they are primarily internal references