Tekton Enhancement Proposals proposal 🤴 #82

vdemeester · 2020-03-06T15:28:42Z

This is the proposal to define a well defined, more "accessible"
proposal workflow for Tekton cross-project enhancement (and new
projects).

In a gist, this is heavily inspired/taken from the KEP from Kubernetes. You can also think of PEP, Rust RFCs, …

This proposal aims to make enhancement proposal easier to track and more acessible.

provide a common structure for proposing changes to Tekton

ensure that the motivation for a change is clear

allow for the enumeration stability milestones and stability
graduation criteria

persist project information in a Version Control System (VCS) for
future Tekton users and contributors

support the creation of high value user facing information such
as:

an overall project development roadmap

motivation for impactful user facing changes

reserve GitHub issues for tracking work in flight rather than
creating "umbrella" issues

ensure community participants are successfully able to drive changes
to completion across one or more releases while stakeholders are
adequately represented throughout the process

It should help track what are the proposal, what state they are in and what is the history being those proposals (comments, commit history, …). It's also more accessible as it will be easier for user to comment (only need a GitHub acconut) and read (anonymous) — in the current "not really process", you need to be a member of tekton-users@ to read and tekton-dev@ to comment.

This would replace the general design docs for anything related to a new project or cross-project work — at least initially.

Once we define a template, it should also make it easier to have design docs / enhancement proposa that have a well defined structure.

/cc @bobcatfish @skaegi @sbwsg @dibyom @afrittoli @imjasonh @abayer @sthaha @a-roberts @danielhelfand @mnuttall @ncskier
(Please ping anyone you think I forgot)

Simplify some stuff (?)
Fixing my english 🇫🇷
Define a template file (.github/ templates 😈)

/kind design
/kind documentation
/area roadmap

Signed-off-by: Vincent Demeester [email protected]

ghost · 2020-03-06T15:37:00Z

teps/README.md

@@ -0,0 +1,6 @@
+# Kubernetes Enhancement Proposals (TEPs)


s/Kubernetes/Tekton/ ?

danielhelfand · 2020-03-06T15:47:54Z

teps/0001-tekton-enhancement-proposal-process.md

+  - an overall project development roadmap
+  - motivation for impactful user facing changes
+- reserve GitHub issues for tracking work in flight rather than
+  creating "umbrella" issues


Can we link to something here for the term "umbrella"? I follow what you're saying but perhaps we could make it very concrete as to what is being conveyed here.

teps/0001-tekton-enhancement-proposal-process.md

pierretasci · 2020-03-11T16:55:57Z

One overall comment which is anecdotal so take it for what it is worth. We tried to do this internally and we found the PR format was not ideal for seeking feedback (github comments are coarser and harder to thread properly) but it was great for versioning and state. We ended up with a hybrid approach where proposals would iterate in docs and then be pushed into the repo when they were "approved". It worked well for us.

vdemeester · 2020-03-11T17:05:09Z

One overall comment which is anecdotal so take it for what it is worth. We tried to do this internally and we found the PR format was not ideal for seeking feedback (github comments are coarser and harder to thread properly) but it was great for versioning and state. We ended up with a hybrid approach where proposals would iterate in docs and then be pushed into the repo when they were "approved". It worked well for us.

Right, nothing prevent for a smaller group to prepare the design doc using another medium before submitting as a TEP.

ncskier · 2020-03-12T18:05:16Z

teps/0001-tekton-enhancement-proposal-process.md

+  - [Prior Art](#prior-art)
+- [Drawbacks](#drawbacks)
+- [Alternatives](#alternatives)
+  - [GitHub issues vs. TEPs](#github-issues-vs-keps)


This link is broken keps -> teps ?

bobcatfish

Once we're ready to merge this, this PR should also update :

https://github.com/tektoncd/community/blob/master/process.md#proposing-features
maybe the main README in this repo

In other projects:

Contributing guides like https://github.com/tektoncd/pipeline/blob/master/CONTRIBUTING.md which link here
maybe the api compatibility policy too re. api changes? https://github.com/tektoncd/pipeline/blob/master/api_compatibility_policy.md#approving-api-changes

I'm wondering if we could make this incrementally more complex instead of adding it all at once, for example adding roles such as "TEP editor" and also the number of states and metadata items (tho maybe these are all well established and its better for us to just follow along)

And to go out on a limb, I'm thinking a bunch of the content of this proposal might be copied from https://github.com/nokia/kubernetes-community/blob/master/keps/0001-kubernetes-enhancement-proposal-process.md and maybe doesnt need to be completely copied in here, maybe just linked?

It'd be nice to avoid repeating stuff that we don't need (esp if its not even an accurate representation of how this community feels - or maybe it is? hard to tell cuz it's copy-pasted) - and give it a tekton community feel

Requests:
Can we include explicit requirements for:

the same requirements from https://github.com/tektoncd/community/blob/master/process.md#proposing-features (use cases, requirements, alternatives)
API change approval policy from Pipelines for Pipelines changes https://github.com/tektoncd/pipeline/blob/master/api_compatibility_policy.md#approving-api-changes

teps/0001-tekton-enhancement-proposal-process.md

bobcatfish · 2020-03-13T18:02:31Z

teps/0001-tekton-enhancement-proposal-process.md

+Before this proposal, there is not a standard way or template
+to create project enhancements. We rely on
+documents hosted on Google docs, without a standard template explaining
+the change. Once a proposal is done, via a design docs, it tends


well we did have https://github.com/tektoncd/community/blob/master/process.md#proposing-features

totally agree that was very lightweight but it wasnt like there wasnt anything

good point, I should point to that in this doc 😉

bobcatfish · 2020-03-13T22:07:07Z

teps/0001-tekton-enhancement-proposal-process.md

+
+Taking a cue from the [Python PEP process][], we define the role of a
+TEP editor. The job of an TEP editor is likely very similar to the
+[TEP editor responsibilities][] and will hopefully provide another


links TBD i guess?

bobcatfish · 2020-03-13T22:09:57Z

teps/0001-tekton-enhancement-proposal-process.md

+perhaps it would be reasonable to invest in providing support to those
+unfamiliar with this tooling. It also make the proposal document more
+accessible that what it is before this proposal, as you are required
+to be part of tekton-users@ or tekton-dev@ google groups to see the


maybe link to community docs re. mailing lists

bobcatfish · 2020-03-13T22:10:22Z

teps/README.md

+A Tekton Enhancement Proposal (TEP) is a way to propose, communicate and coordinate on new efforts for the Tekton project.
+You can read the full details of the project in [TEP-1](0001-tekton-enhancement-proposal-process.md).
+
+This process is still in a _beta_ state and is mandatory for all enhancements beginning release 1.0.


what is release 1.0?

it would be the first GA of tekton pipelines… But I need to rework this part, as it's not yet clear what we will call GA for tekton 🙃

teps/0001-tekton-enhancement-proposal-process.md

bobcatfish · 2020-03-13T22:12:24Z

teps/0001-tekton-enhancement-proposal-process.md

+[design proposals]: https://github.com/kubernetes/community/tree/master/contributors/design-proposals
+
+## Stewardship
+The following DACI model indentifies the responsible parties for TEPs:


link to what DACI is maybe? (https://www.productplan.com/glossary/daci/#:~:text=The%20DACI%20decision%2Dmaking%20framework%20is%20a%20model%20designed%20to,it%20comes%20to%20group%20decisions ?)

I was looking for a link to a more neutral web page, the the wikipedia like doesn't say too much: https://en.wikipedia.org/wiki/Responsibility_assignment_matrix#DACI

bobcatfish · 2020-03-13T22:12:40Z

teps/0001-tekton-enhancement-proposal-process.md

+**Workstream** | **Driver** | **Approver** | **Contributor** |
+**Informed** --- | --- | --- | --- | ---
+| TEP Process Stewardship | TG members | TG members | TG members | Community |
+| Enhancement delivery | Enhancement Owner | SIG leadership (SIG Chairs + TLs) | Enhancement Implementer(s) (may overlap with Driver) | Community |


we dont really have SIGs, maybe we can replace this with OWNERS from each project?

yeah, that's what I was going for 🙃

CDF SIGs may be drivers and/or contributors of a change, but I'm not sure we need to explicitly call out their role in TEPs.

bobcatfish · 2020-03-13T22:18:51Z

We tried to do this internally and we found the PR format was not ideal for seeking feedback (github comments are coarser and harder to thread properly) but it was great for versioning and state.

As @pierretasci I'm a bit concerned about this as well - I'm willing to give it a shot! I like the idea of having more formal guidance around what folks should put in a proposal, but @vdemeester I had to admit I don't quite understand the motivation for making this change, as we could have a recommended google docs template and it'd accomplish a lot of the same thing.

I'm thinking the main motivations for putting docs in github are:

One place to look to find the docs
Revision history that's easier to navigate (not 100% sure that's true)
Don't have to be in tekton-dev to see the docs?

vdemeester · 2020-03-16T10:55:48Z

[…] as we could have a recommended google docs template and it'd accomplish a lot of the same thing.
[…]
I'm thinking the main motivations for putting docs in github are:
1. One place to look to find the docs

2. Revision history that's easier to navigate (not 100% sure that's true)

3. Don't have to be in tekton-dev to see the docs?

Indeed those are the main motivations:

having a central places for all the docs
all the docs more accessible (available for everybody as read-only at least)
proposal, enhancement on proposals, taking over a proposal, are all done the same way : opening a PR 🙃
Revision history, comments history, etc… at least for comments it is true 🙃 (it's kinda really hard to see historical comments on a google docs)

I'm wondering if we could make this incrementally more complex instead of adding it all at once, for example adding roles such as "TEP editor" and also the number of states and metadata items (tho maybe these are all well established and its better for us to just follow along)

Yes definitely 👍 I took an heavy inspiration on KEP and didn't clean all the things before having initial feedbacks 👼

And to go out on a limb, I'm thinking a bunch of the content of this proposal might be copied from https://github.com/nokia/kubernetes-community/blob/master/keps/0001-kubernetes-enhancement-proposal-process.md and maybe doesnt need to be completely copied in here, maybe just linked?

My end-goal is to say "this is similar to KEP", but having our own process, that we agreed on, so the document should be self-describing and shouldn't make user need to read the KEP process to understand this one.

It'd be nice to avoid repeating stuff that we don't need (esp if its not even an accurate representation of how this community feels - or maybe it is? hard to tell cuz it's copy-pasted) - and give it a tekton community feel

Yep, as commented before, I'll clean things that are not needed 👍

Can we include explicit requirements for:

1. the same requirements from https://github.com/tektoncd/community/blob/master/process.md#proposing-features (use cases, requirements, alternatives)

2. API change approval policy from Pipelines for Pipelines changes https://github.com/tektoncd/pipeline/blob/master/api_compatibility_policy.md#approving-api-changes

👍

afrittoli

Thank you for doing this!

afrittoli · 2020-03-16T10:46:25Z

teps/0001-tekton-enhancement-proposal-process.md

+- design document
+
+into one file which is created incrementally in collaboration with one
+or more Working Groups (WGs).


Perhaps add a link to the list of existing WGs? Do we have one?

afrittoli · 2020-03-16T10:48:50Z

teps/0001-tekton-enhancement-proposal-process.md

+The purpose of the TEP process is to reduce the amount of "tribal
+knowledge" in our community. By moving decisions from a smattering of
+mailing lists, video calls and hallway conversations into a well
+tracked artifact, this process aims to enhance communication and
+discoverability.


+100

This is very important - TEP are not necessarily about improving the process of designing a feature - but rather about visibility and transparency

I like most of this section but I feel myself feeling really defensive when I read this sentence "By moving decisions from a smattering of mailing lists, video calls and hallway conversations into a well tracked artifact", it just feels really pejorative toward the processes we've been using up until this point. Is there something different we can say that is maybe a bit more complimentary toward our existing processes (if they deserve it? i think they do! im proud of what we have done) - or maybe drop this sentence? (keeping the "tribal knowledge" sentence tho)

We can drop the sentence or write it better and keep "tribal knowledge" yes. I'll.. try to come with a better sentence 😉. (sorry if it feels "very pejorative" 😅 it's not meant to be)

teps/0001-tekton-enhancement-proposal-process.md

afrittoli · 2020-03-16T10:53:46Z

teps/0001-tekton-enhancement-proposal-process.md

+[design proposals]: https://github.com/kubernetes/community/tree/master/contributors/design-proposals
+
+## Stewardship
+The following DACI model indentifies the responsible parties for TEPs:


I was looking for a link to a more neutral web page, the the wikipedia like doesn't say too much: https://en.wikipedia.org/wiki/Responsibility_assignment_matrix#DACI

afrittoli · 2020-03-16T10:56:59Z

teps/0001-tekton-enhancement-proposal-process.md

+**Workstream** | **Driver** | **Approver** | **Contributor** |
+**Informed** --- | --- | --- | --- | ---
+| TEP Process Stewardship | TG members | TG members | TG members | Community |
+| Enhancement delivery | Enhancement Owner | SIG leadership (SIG Chairs + TLs) | Enhancement Implementer(s) (may overlap with Driver) | Community |


CDF SIGs may be drivers and/or contributors of a change, but I'm not sure we need to explicitly call out their role in TEPs.

afrittoli · 2020-03-16T11:06:11Z

teps/0001-tekton-enhancement-proposal-process.md

+operator facing enhancement should follow the TEP process. If an
+enhancement would be described in either written or verbal
+communication to anyone besides the TEP author or developer, then
+consider creating a TEP.


I don't think I fully understand the meaning of this?

This means : if a proposal needs to be shared with more than just the developer (for different reason : cross-project, collaboration, user-facing), then it needs to have a TEP.

teps/0001-tekton-enhancement-proposal-process.md

afrittoli · 2020-03-16T11:10:25Z

teps/0001-tekton-enhancement-proposal-process.md

+through the TEP process. WGs may find it helpful to enumerate what
+_does not_ require a TEP rather than what does. WGs also have the
+freedom to customize the TEP template according to their WG specific
+concerns. For example, the TEP template used to track API changes will


We still might want to include a list of sections that should be adopted by all WGs

teps/0001-tekton-enhancement-proposal-process.md

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mpeters · 2020-06-04T14:58:36Z

teps/0001-tekton-enhancement-proposal-process.md

+implement it in the main project(s). This state doesn't prevent using
+`tektoncd/experimental` to *experiment* and gather feedback.
+
+A TEP can be created with the `implementable` state if it doesn't need


NIT: Maybe reword to something like: A TEP can be moved to the implementable state if it doesn't need any more discussion and is approved as is.

afrittoli

Thanks for this latest updates!
The template looks good to me, there are a few comments that might be worth addressing if you want to do one last quick iteration, but up to you.
/lgtm

afrittoli · 2020-06-04T15:41:56Z

teps/NNNN-tep-template/README.md

+- [Drawbacks](#drawbacks)
+- [Alternatives](#alternatives)
+- [Infrastructure Needed (optional)](#infrastructure-needed-optional)
+<!-- /toc -->


what about an optional upgrade / migration strategy section?

mpeters · 2020-06-04T17:00:09Z

teps/0001-tekton-enhancement-proposal-process.md

+
+## Examples
+
+Let's give some example of workflow to give reader a better


NIT: change "give reader" to "give the reader"

mpeters · 2020-06-04T17:00:28Z

teps/0001-tekton-enhancement-proposal-process.md

+## Examples
+
+Let's give some example of workflow to give reader a better
+understanding on how and when TEP should be created and how they are


NIT: change "when TEP" to "when a TEP"

mpeters · 2020-06-04T17:00:51Z

teps/0001-tekton-enhancement-proposal-process.md

+understanding on how and when TEP should be created and how they are
+managed across time.
+
+Those are examples, and do not necessarily reflect what happened, or


NIT: Change "Those are examples" to "These are examples"

mpeters · 2020-06-04T17:01:16Z

teps/0001-tekton-enhancement-proposal-process.md

+managed across time.
+
+Those are examples, and do not necessarily reflect what happened, or
+will happens on the particular subject they are about. They are here


NIT: Change "will happens" to "what will happen"

mpeters · 2020-06-04T17:02:09Z

teps/0001-tekton-enhancement-proposal-process.md

+
+Those are examples, and do not necessarily reflect what happened, or
+will happens on the particular subject they are about. They are here
+to give more context and ideas on different situation that could rise


NIT: Change "situation" to "situations"
NIT: Change "could rise" to "could arise"

pritidesai · 2020-06-04T21:49:40Z

teps/0001-tekton-enhancement-proposal-process.md

+### Prior Art
+
+The TEP process as proposed was essentially adapted from the
+[Kubernetes KEP process][], which itself is essentially stolen from the [Rust RFC


Does this process apply to all Tekton projects in addition to Pipelines like CLI, triggers, dashboard? if so, should we store TEPs in a project specific directories like KEP?

It applies to all tekton project, but so far, trying to keep it simple and have it all on the same folder.

We may have a lot of TEP that touch more than one project

We are not as big as kubernetes 😝

We'll see over time if we need to have subfolders, etc..

This is the proposal to define a well defined, more "accessible" proposal workflow for Tekton cross-project enhancement (and new projects). Co-Authored-By: Daniel Helfand <[email protected]> Co-Authored-By: Napoleon Santana <[email protected]> Signed-off-by: Vincent Demeester <[email protected]>

- Clean some non-sense and make it as small, simple and clear as possible - Make sure the process doesn't block authors to use other means to write design docs before proposing a TEP - Add some examples (fictional but based on real enhancements / subjects) Signed-off-by: Vincent Demeester <[email protected]>

- Adding some examples of not requiring a TEP - typos and work fixes Signed-off-by: Vincent Demeester <[email protected]>

This should allow user to update toc.sh of there TEPs automatically 😉 Signed-off-by: Vincent Demeester <[email protected]>

Signed-off-by: Vincent Demeester <[email protected]>

bobcatfish

Looking great! As far as I can tell @afrittoli @imjasonh and @abayer are all in favor, and me as well, and all major feedback has been addressed so it feels like it's time we put this to use :D

/lgtm

bobcatfish · 2020-06-05T19:17:01Z

teps/0001-tekton-enhancement-proposal-process.md

+- the fact that the what constitutes a feature is still undefined
+- issue management
+- the difference between an accepted design and a proposal
+- the organization of design proposals


bumping this, but not enough to block merging on!

bobcatfish · 2020-06-05T19:21:36Z

And since I think everyone has had a look:

/hold cancel

bobcatfish · 2020-06-05T19:22:50Z

just realized @abayer hasn't had a look yet

/hold

bobcatfish · 2020-06-05T19:23:25Z

aaaand it was merged. okay well. hopefully @abayer doesnt have any objections that cant be addressed in followup PRs 😨

/hold cancel

abayer · 2020-06-05T19:25:05Z

I do not have any objections. =)

bobcatfish · 2020-06-05T19:25:55Z

A copy (for historical purposes) of the original PDF can be found within the sigstore/TSC repository, but the canonical version of the charter has been converted to Markdown and is viewable at https://github.com/sigstore/TSC/blob/main/docs/CHARTER.MD Signed-off-by: Bob Callaway <[email protected]>

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vdemeester and others added 6 commits June 5, 2020 11:36

Taking latest reviews into account :)

65415eb

- Adding some examples of not requiring a TEP - typos and work fixes Signed-off-by: Vincent Demeester <[email protected]>

hack: add update-tocs.sh script

eefc77d

This should allow user to update toc.sh of there TEPs automatically 😉 Signed-off-by: Vincent Demeester <[email protected]>

TEPs: add TEP template

1b8ef51

Signed-off-by: Vincent Demeester <[email protected]>

TEP updates: simplify examples, updating template.

a5888b0

Signed-off-by: Vincent Demeester <[email protected]>

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		## Examples

		Let's give some example of workflow to give reader a better

Tekton Enhancement Proposals proposal 🤴 #82

Tekton Enhancement Proposals proposal 🤴 #82

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