configmaps.yaml

     containers:
        ....
        volumeMounts:
          - mountPath: /etc/foo/template
            name: foo-template-volume
            readOnly: true
          - mountPath: /etc/foo/config
            name: foo-config-volume
      volumes:
        - name: foo-template-volume
          configMap:
            name: foo-template
            items:
            - key: foo-tmpl
              path: foo.tmpl
        - configMap:
            name: foo-config
          name: foo-config-volume