docs: Adds roadmap. Closes argoproj#3835 (argoproj#3863)

docs/roadmap.md

@@ -0,0 +1,64 @@
+# Roadmap
+## SDKs
+
+Build on the [Java SDK](https://github.com/argoproj-labs/argo-java-client) by stabilising the code base. Continue to improve the stability of SDKs, for example correcting bugs in OpenAPI specifications.
+
+## More Ways to Trigger Workflows
+
+Offer new ways to trigger workflows on top of existing mechanisms such as via the GUI or CLI. 
+
+For example, how can [one workflow trigger another workflow](https://github.com/argoproj/argo/issues/3295)? Build out-of-the-box support for triggering workflows via [webhooks](https://github.com/argoproj/argo/issues/2667), so it is easier to integrate with third-party tools such as Github or Gitlab. 
+
+## Controller Enhancements
+
+Provide new features and enhancements that build on existing controller and executor functionality. 
+
+### Memoization
+
+Memoization of workflow steps allows workflow to execute quicker by work-avoidance. This will be improved by adding support for [automatic TTL](https://github.com/argoproj/argo/issues/3593) and [alternative storage options](https://github.com/argoproj/argo/issues/3587) to config maps.
+
+### Semaphores and Mutexes
+
+Enable more ways to lock workflows when waiting on resources with the existing semaphore capability and [mutexes](https://github.com/argoproj/argo/issues/2677).
+
+### Task Level Priorities
+
+Introduce task level priorities to enable fine-tuning of the order of nodes within an workflow execution graph.
+
+### Artifact Management Enhancements
+
+Improve the handling of artifacts loaded from AWS, GCS, Artifactory et al. For example, [features to support `artifactRepositoryRef`](https://github.com/argoproj/argo/issues/3307), or [automatically creating buckets](https://github.com/argoproj/argo/issues/3586).
+
+## Metrics & Reporting
+
+Make it easier to understand how long and how much resource workflows use by supporting [automatic duration prediction](https://github.com/argoproj/argo/issues/2717) for newly started workflows and [historical workflow reports](https://github.com/argoproj/argo/issues/3557).
+
+## RBAC for SSO
+
+The #1 community voted feature is [RBAC for SSO](https://github.com/argoproj/argo/issues/3525). This will allow users to provide different access to different users within the GUI.
+
+## Scaling, Reliability, Performance
+
+Continue to improve support for large numbers (10,000+) of massive (2,000+ node) workflows.
+
+Be able to show larger workflows in GUI by enabling the filtering and [collapsing of workflow graphs](https://github.com/argoproj/argo/issues/3527) in the GUI. Make improvements to listing [large numbers of workflows](https://github.com/argoproj/argo/issues/3590) on GUI by using filtering, sorting, and pagination; or [grouping workflows](https://github.com/argoproj/argo/issues/3591) is list view.
+
+Execute [Failure mode effect analysis (FMEA) and stress testing](https://github.com/argoproj/argo/issues/3751) to identify areas for improvement and then implement changes to make workflows and archiving run more reliably.
+
+## Argo Events Integration
+
+Improve integration with Argo Events to enable users to trigger workflows in more ways and provide clearer linkage between the cause and outcome.
+
+## Workflow Template Catalog
+
+Support and help build out [the workflow template catalog](https://argoproj-labs.github.io/argo-workflows-catalog/), a library of reusable templates for common workflow tasks.
+
+## Use Case Specific Enhancements
+
+We're looking for partners and contributors to help design and develop changes to specifically help the following use cases:
+
+* MLOps
+* AIOps
+* Data/Batch Processing
+* CI/CD Pipelines
+

mkdocs.yml

@@ -139,7 +139,7 @@ nav:
  - static-code-analysis.md
  - releasing.md
  - Releases ⧉: https://github.com/argoproj/argo/releases
- - Roadmap ⧉: https://github.com/argoproj/argo/milestones
+ - Roadmap: roadmap.md
  - Blog ⧉: https://blog.argoproj.io/
  - Slack ⧉: https://argoproj.github.io/community/join-slack
  - Twitter ⧉: https://twitter.com/argoproj