You are looking at documentation for a beta release.
Docker fieldsedit
This functionality is in beta and is subject to change. The design and code is less mature than official GA features and is being provided as-is with no warranties. Beta features are not subject to the support SLA of official GA features.
Docker stats collected from Docker.
docker.container.idedit
type: keyword
Unique container id.
docker.container.imageedit
type: keyword
Name of the image the container was built on.
docker.container.nameedit
type: keyword
Container name.
docker.container.labelsedit
type: object
Image labels.