When defining a Pod specification, in addition to the mandatory name and image key, you can specify an env key. The environment key requires a name, and you can add a key that makes a reference using valueFrom: to get data from a ConfigMap.
For example, to expose our example configuration as an environment variable, you could add the following stanza to a Pod specification:
env: - name: LOG_LEVEL_KEY valueFrom: configMapKeyRef: name: example-config Key: log.level
You can include multiple environment variables in the Pod specification, and each can reference a different ConfigMap if you have your configuration split up into multiple pieces to make it easier (or more sensible) to administer.
You can also map the entirety ...