Functions are great for stateless things but there are use cases where functions deal with data, that is best attached as volume. For example, functions used in data pipelines would benefit a lot from volumes being attached to functions.
With PodSpec you can now attach a volume to a function.
You have to define a volume and then mount it on specific container.
In the following example we create a simple volume with Kubernetes downward API which dumps information of labels in a file.
The volume is then mounted on the function container at
apiVersion: fission.io/v1 kind: Environment ... spec: podspec: # A container which will be merged with for pool manager containers: - name: nodep image: fission/node-env volumeMounts: - name: funcvol mountPath: /etc/funcdata readOnly: true volumes: - name: funcvol downwardAPI: items: - path: "labels" fieldRef: fieldPath: metadata.labels