Roadmap.md for an overview of roadmap and areas

Documentation/Roadmap.md

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+# Fission Roadmap
+
+## Function features (area-func)
+
+Secrets, configmaps, env vars
+Volumes
+Mem requests and limits
+Function exec time deadline
+Expose a regular K8s Service for a function
+
+## Fission API (area-api)
+
+TPR-based controller
+API authentication
+Aggregated API server
+
+## Development Workflows (area-dev)
+
+Function Versioning
+Versioning for a group of functions
+Rolling upgrades
+  for one function
+  for multiple functions
+  for functions + other kubernetes deployments
+Unit testing
+
+## API Gateway / Ingress features (area-ingress)
+
+Function authn hooks
+K8s Ingress flag
+Bundle an ingress controller?
+
+## Workflows and Function composition (area-composition)
+
+Simple Composition - Sync
+Simple Composition - Async
+Hooks (pre, post, on-error)
+Workflows
+Testing in the presence of function composition
+
+## Events (area-events)
+
+NATS
+Kafka
+AWS: SNS, SQS
+Google PubSub
+RabbitMQ
+Other event sources
+
+Bundle an event queue (NATS streaming, most probably)
+
+
+## Operability (area-ops)
+
+### Fission Install/Upgrade (area-install)
+
+Helm Installer for Fission
+Helm installation for fission functions
+CLI installer/upgrader? ("fission upgrade")
+Upgrade checker/reminder (like minikube does)
+CLI auto-upgrader
+
+### Function observation (area-observe)
+
+Function Logging
+Tracing -- Opentracing
+Metrics -- Prometheus
+Function exception tracking
+Logging function load errors
+Tracing fission overheads for each function
+
+## Function Security
+
+Function isolation (is authz hook sufficient or do we need something like mutual TLS?)
+
+## UX, especially for beginners (area-ux)
+
+Fission CLI should include a tutorial
+Fission CLI should have a way to drop you into the UI
+Eliminate FISSION_URL, just use kube client to find fission url.  Also useful to grab credentials.
+
+## Documentation (area-doc)
+
+Installation guide improvements
+Troubleshooting guide for common problems
+FAQ
+Performance overview
+Render docs nicely to fission.io
+
+## Web UI (tracked separately in the fission-ui repo)
+
+## Performance and Scalability (area-perf)
+
+Autoscaling
+Cold-start optimization -- optimistically choose from pool, save about ~20msec
+Cold-start optimization -- preload funcs in fetcher
+Cold-start optimization -- preload libraries in envs (v2) -- mem vs. speed tradeoff
+
+## Function extensibility (area-ext)
+
+Env v2: easy addition of dependencies etc.
+Integration with Service Broker
+
+## Multi-area stuff
+
+Execution strategies: cold-start pool vs create-pod-on-cold-start
+ -- one size doesn't fit all, at least with current tech; abstract over execution strategies according to requirements