The Container Instances FAQ indicates that:
Each container instance gets 15 GB of ephemeral storage by default. Options to attach persistent volumes with OCI Block Storage and OCI File Storage (FSS) will be available soon. Container Instances can also use external databases to store data that outlives the container instance.
I want to be able to save files uploaded to a web server running as a container inside a Container Instance onto persistent block storage. Then process these files using a separate container inside the same Container Instance that also has access to the same block storage.
Is there an update on when persistent volumes be available for Container Instances? Until this feature becomes available I think I'll need to use a VM and setup my own docker so I can add host volumes.