For flexible environments, a memcache service will be available at some point as mentioned in the doc you linked.
For standard environments, using Cloud Memorystore (via VPC Connect) is the only supported cache path for 2nd Generation runtimes as mentioned here by the App Engine Team [1]. [1] https://issuetracker.google.com/113127309 -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/62e7d4c7-b1c7-42db-b0e2-4e55dbeb136b%40googlegroups.com.
