What Is Downward Api In Openshift?

1.	What Is Downward Api In Openshift?
Answer» The Downward API is a mechanism whereby pods can retrieve their metadata without having to call into the Kubernetes API. The following metadata can be retrieved and used to configure the running pods: Labels Annotations Pod NAME, namespace, and IP ADDRESS Pod CPU/memory request and limit INFORMATION CERTAIN information can be mounted into the pod as an environment variable, whereas other information can be accessed as files within a volume. The Downward API is a mechanism whereby pods can retrieve their metadata without having to call into the Kubernetes API. The following metadata can be retrieved and used to configure the running pods:

Answer»

The Downward API is a mechanism whereby pods can retrieve their metadata without having to call into the Kubernetes API.

The following metadata can be retrieved and used to configure the running pods:

Labels
Annotations
Pod NAME, namespace, and IP ADDRESS
Pod CPU/memory request and limit INFORMATION
CERTAIN information can be mounted into the pod as an environment variable, whereas other information can be accessed as files within a volume.

The Downward API is a mechanism whereby pods can retrieve their metadata without having to call into the Kubernetes API.

The following metadata can be retrieved and used to configure the running pods:

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