Merge pull request #3333 from james-w/roadmap

Add a roadmap for the project

ROADMAP.md

@@ -0,0 +1,49 @@
+Roadmap
+=======
+
+These are the themes that we plan to work on for cert-manager. If you wish
+to discuss these topics you can find us in #cert-manager on Kubernetes Slack, or
+at our [community meetings](https://cert-manager.io/docs/contributing/#meetings).
+
+The roadmap items are categorized in to themes based on the larger goals we
+want to achieve with cert-manager.
+
+While this is a summary of the direction we want to go, we welcome all PRs,
+even if they don't fall under any of the roadmap items.
+
+* Beyond Ingress: improve experience of cert-manager for applications beyond just
+  ingress certificates
+  * Service Mesh Integration: Enable service meshes to issue mTLS certificates
+    with cert-manager, getting the integration with external issuers and the
+    audit capabilities of cert-manager in their mesh
+  * Istio agent certificates issued via cert-manager
+  * CSI driver: seamlessly deliver unique certs + keys to workloads. Review the
+    prototype that we have for this and do a proper release.
+* Adoption of upstream APIs: continue to support latest APIs for k8s upstream
+  * k8s APIs: keep up to date with Kubernetes API changes and releases
+  * CSR API: support CSR API as a standard for certificate requests in kubernetes
+* Policy: allowing granular control over certificate issuance
+  * Extensible primitives within cert-manager for defining policy for
+    acceptable CertificateRequests
+* Extensibility: widen the scope of integrations with cert-manager
+  * [EST support](https://tools.ietf.org/html/rfc7030): support a standard for
+    ACME-like issuance within an enterprise
+  * External DNS plugin: enable ACME DNS01 requests to be completed using external-dns
+  * OpenShift Routes support: provide similar capabilities to Ingress for
+    issuing certs
+  * Improve external issuer development experience: documentation and examples
+    for people developing external issuers
+* PKI lifecycle: enable best-practice PKI management with cert-manager
+  * Handle CA cert being renewed: deal with the cases where the CA cert is
+    renewed and allow for all signed certs to be renewed
+  * Trust root distribution: handle distributing all trust roots within a
+    cluster, allowing for certs to be verified within a cluster
+* Improve developer and operator experience: better user experience
+  for installation, operation and use with applications
+  * Easier installation of cert-manager: improve the installation experience
+    through docs and in other ways
+        * Tooling to install and upgrade cert-manager (improved operators? CLI tool?)
+        * Tooling to verify an installation is correct/secure
+  * Easier diagnosis of problems: improve the cert-manager output to make the
+    status clearer, and provide tools to aid debugging
+  * Improve the new contributor experience