[GitHub] [camel-k] squakez commented on a change in pull request #1957: proposal: provided kamelets

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squakez commented on a change in pull request #1957:
URL: https://github.com/apache/camel-k/pull/1957#discussion_r566835072



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File path: proposals/provided-kamelets.adoc
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@@ -0,0 +1,83 @@
+---
+title: Provided Kamelets
+authors:
+  - "@nicolaferraro"
+creation-date: 2020-01-29
+last-updated: 2020-01-29
+status: implementable
+see-also: []
+replaces: []
+superseded-by: []
+---
+
+[[provided-kamelets]]
+= Provided Kamelets
+
+== Summary
+
+As Apache Camel, we offer several components (300+) that can be used out-of-the-box in Camel K. Each one of them implements connection for a single
+system/protocol and usually provides access to several features (hence the component configuration is usually over-complicated).
+We also have defined the concept of Kamelet, that differently from a component, is an higher level resource and satisfies a single single use case and provides a
+simple configuration. A Kamelet can also use one or more components in its definition, to make the distinction clearer.
+
+In parallel to the component catalog, I think it's a good idea to offer also a catalog of **"Apache Camel Kamelets"**.
+
+== Motivation
+
+There are several platforms that may benefit from a Kamelet Catalog that is embedded in Camel K:
+
+- The Knative team is https://github.com/knative-sandbox/kn-plugin-source-kamelet[thinking to integrate Kamelets into the `kn` CLI]: that plugin would query the
+kamelets present in a Cluster and allow to instantiate sources from them.
+- The OpenShift console https://github.com/openshift/console/pull/7344[has already merged support for Kamelets in next 4.7 release]: the console will display
+Kamelets among available sources and allow users to configure them and bind them to a destination.
+- Other platforms are encouraged to use the Kamelet model for ingress/egress use cases.
+
+As we move forward, we may want to build together a Catalog of curated Kamelets that people can leverage when using any platform that is powered by Camel K.
+
+== Goals
+
+- Involve the community into the creation of a Kamelet catalog, giving them means and examples on how to contribute new Kamelets and related tests,
+ to ensure we don't break them as we move forward.
+- Make sure that when Camel K is installed on a cluster, tools and platforms can query the Kubernetes API to find installed Kamelets and use them.
+- Make sure that Kamelets can be also used in `local run` executions.
+
+== Non-Goals
+
+- We don't want to auto-generate Kamelets from components, the Kamelet catalog should focus on common use-cases and grow with users needs.
+
+== Current state
+
+There's a procedure to embed Kamelets in the operator, but it's not used.
+
+The current implementation currently looks up Kamelets in the current namespace first, then in the operator namespace (in case it's different), then
+it does a lookup on the `master` branch in https://github.com/apache/camel-kamelets to search for a specific Kamelet when used.
+This causes problems because it's not difficult to hit rate limiting on using the Github APIs. There's a cache to avoid too many requests, but it's not always sufficient.
+
+== Proposal
+
+We should start to add Kamelets to https://github.com/apache/camel-kamelets, and help people contributing their own.

Review comment:
       I think we must define guidelines in order to know what kind of `Kamelet`s are expected and how much generic they should be.




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