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Update and trim-back ROADMAP.md
- This change points the roadmap back to the documentation and GitHub issue trackers - Draws distinction between OF and OFC. Signed-off-by: Alex Ellis <alexellis2@gmail.com>
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ROADMAP.md
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ROADMAP.md
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# Roadmap
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## 1. Current features
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## GitHub projects / source code
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For an overview of features in August 2017 read the following post:
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You can find a detailed breakdown of the [openfaas](https://github.com/openfaas/) and [openfaas-incubator](https://github.com/openfaas-incubator/) organisations and projects [in the docs](https://docs.openfaas.com/contributing/get-started/).
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* [Introducing OpenFaaS (Functions as a Service)](https://blog.alexellis.io/introducing-functions-as-a-service/)
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## Feature overview
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For the latest updates see [blog.alexellis.io/tag/openfaas](https://blog.alexellis.io/tag/openfaas/)
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For an overview see [the docs](https://docs.openfaas.com/) or see a [feature comparison between OpenFaaS and OpenFaaS Cloud](https://docs.openfaas.com/openfaas-cloud/intro/).
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## Primary GitHub Organisation:
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### OpenFaaS
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* https://github.com/openfaas/faas
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* https://github.com/openfaas/faas-netes
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* https://github.com/openfaas/faas-cli
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* https://github.com/openfaas/nats-queue-worker
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OpenFaaS is a platform for building Serverless Functions and/or deploying existing microservices. Any programming language or binary is supported with a range of [templates](https://github.com/openfaas/templates) available to help you get started.
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## Incubator GitHub Organisation:
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The core services which make up OpenFaaS need to run on a Linux master, but Windows worker nodes can be added to your cluster to run Windows binaries and functions.
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* https://github.com/openfaas-incubator
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Platforms: the x86_64 platform has first class support, with 32-bit arm and 64-bit arm provided on a best-effort basis.
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### The API Gateway
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Orchestrators: there is official support for Kubernetes & Docker Swarm with the community providing support for AWS Fargate, Hashicorp Nomad and others.
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This container acts in a similar way to the API Gateway on AWS. Requests can be made to this endpoint with a JSON body.
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### OpenFaaS Cloud
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Some of the more recent Completed Features:
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OpenFaaS Cloud is a multi-user distribution of OpenFaaS with a built-in CI/CD pipeline, OAuth delegation, a dashboard and a git-based workflow with public/private GitHub and self-hosted GitLab.
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* UI for viewing and testing functions deployed through stack
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* Auto-scaling of replicas as load increases
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* Backing off of replicas as load reduces
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* Unique URL routes for serverless functions
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* Instrumentation via Prometheus metrics at GET /metrics
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* Bundled Prometheus stack with AlertManager
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* UI enhancements to create new function through a form
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* Raspberry Pi (armhf/armv6) support (currently available)
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* Documentation for current API in Swagger format
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* Documentation about [Alexa sample function](https://blog.alexellis.io/serverless-alexa-skill-mobymingle/)
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* Native CLI for templating/building and deploying functions
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* Windows support for watchdog back-end - so that Windows executables can be used in a multi-OS swarm
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* Enforcing function execution time in seconds.
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* Python, Node.js, Ruby and CSharp code templates for the CLI
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* Delete function in CLI
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* Developer guide for CSharp
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* Developer guide for Python
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* **Kubernetes support**
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* Asynchronous / long-running tasks via NATS Streaming
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* CLI - invoke / list functions / query function info
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* OS constraints in the deploy function API
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* helm chart
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* Developer guide to using functions together - via pipes on client, or a "director" function on server
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* Developer guide for DigitalOcean
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* Re-branding to OpenFaaS
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* New logo - graphic icon and text
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* Website / landing page
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* Non-root Docker templates for the CLI
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* Integration with a reverse proxy - such as Traefik or Kong
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* I.e. for TLS termination
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* Basic auth for /system endpoints (probably via reverse proxy)
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* AARCH64 (64-bit ARM) port (dependent on Docker release schedule)
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* Healthchecks for functions deployed on Kubernetes
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* Supporting request parameters via query-string
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* Custom end-to-end label support for functions
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* Supporting request parameters via route - QueryString / Path
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* Guide for basic authentication over HTTPs (set up externally through NGinx etc)
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Platforms: only the x86_64 platform has support.
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**Incoming requests and routing**
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Orchestrators: there is official support for Kubernetes and for Docker Swarm. Kubernetes has better support for multiple users / tenants than Swarm.
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There are three options for routing:
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## What is coming next?
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* Functions created on the overlay network can be invoked by: http://localhost:8080/function/{servicename}
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* Automatic routing is also enabled through the `/` endpoint via a `X-Function` header which matches a service name (function) directly.
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Proposals and feature requests are tracked in Trello and through the GitHub issue tracker of each project in the two organisations.
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### The watchdog
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* [openfaas](https://github.com/openfaas/)
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* [openfaas-incubator](https://github.com/openfaas-incubator/)
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This binary fwatchdog acts as a watchdog for your function. Features:
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* Static binary in Go
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* Listens to HTTP requests over swarm overlay network
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* Spawns process set in `fprocess` ENV variable for each HTTP connection
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* Only lets processes run for set duration i.e. 500ms, 2s, 3s.
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* Language/binding independent - can invoke any UNIX process, including built-ins such as `wc` or `cat`
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* Can also run Windows native binaries
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## 2. Future/current work (subject to change)
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If you need an up-to-date picture of what is current and ready-for-use please reach out to the OpenFaaS maintainers through our Slack comunity. Most items are detailed [via Github issues](https://github.com/openfaas/faas/issues).
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Native support is available for Docker Swarm and Kubernetes using primitive API objects in each orchestration platform.
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Must have
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* Dedicated blog site built from GitHub pages or Hugo
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* Developer Cloud guides:
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* for Digital Ocean (done)
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* for Packet
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* for AWS
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* Developer guide for your first Node.js function
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* Configurable memory limits per function exposed through API
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* Certifier for third-party integrations - via e2e tests (in progress)
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* Return stderr or link to stderr via function invocation (For VMWare / Mark Peek)
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* Community function templates for the FaaS-CLI (in progress)
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Should have
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* Docker image builder as remote service based upon Moby
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* Kafka-Connector for the API Gateway
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* AfterBurn - fork once, use many which removes almost all runtime latency - (Alpha available)
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* Kafka queue worker implementation (async currently available by NATS Streaming) - available in pending PR
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* Our own "timer" (aka cron) for invoking functions on a regular basis - or a guide for setting this up via Jenkins or CRON
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* Guide/proxy for Flask in a function
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Could have
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* Multi-tenancy (in-progress for Kubernetes and Docker Swarm)
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* Progress animation for building Docker images via CLI
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* Built-in Docker registry with default configuration
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* Function store - list of useful predefined functions
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* Configurable memory limits via "new function" pop-up (already supported by Docker compose stack)
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* Scale to zero 0/0 replicas
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* Serverless Inc framework support - as a "provider" (in progress)
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Nice to have
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* CRIU - (Checkpoint/Restore In Userspace) for starting serverless tasks with a high start-up cost/latency.
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* Deeper tests coverage and integration tests
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On-going integrations in addition to Swarm and K8s:
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* ECS - via Huawei
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* Nomad via Hashicorp / Nic Jackson
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* Hyper.sh via Hyper
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* Cattle / Rancher by Ken in the community
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* DC/OS via Alberto in the community
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Internal research is also being done for the ACI / AKS / K8s-connector.
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### Contributing
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## Contributing
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Please see [CONTRIBUTING.md](https://github.com/openfaas/faas/blob/master/CONTRIBUTING.md).
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