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Kubernetes Release Notes Generator

This directory contains a tool called release-notes and a set of library utilities at which aim to provide a simple and extensible set of tools for fetching, contextualizing, and rendering release notes for the Kubernetes repository.

Install

The simplest way to install the release-notes CLI is via go get:

GO111MODULE=on go get k8s.io/release/cmd/release-notes

This will install release-notes to $(go env GOPATH)/bin/release-notes.

Usage

To generate release notes for a commit range, run:

$ export GITHUB_TOKEN=a_github_api_token
$ release-notes \
  -start-sha 02dc3d713dd7f945a8b6f7ef3e008f3d29c2d549 \
  -end-sha   23649560c060ad6cd82da8da42302f8f7e38cf1e

level=info timestamp=2019-07-30T04:02:30.9452687Z caller=main.go:139 msg="fetching all commits. this might take a while..."
level=info timestamp=2019-07-30T04:02:43.8454168Z caller=notes.go:446 msg="[1/1679 - 0.06%]"
...
level=info timestamp=2019-07-30T04:09:30.3491553Z caller=notes.go:446 msg="[1679/1679 - 100.00%]"
level=info timestamp=2019-07-30T04:11:38.8033378Z caller=main.go:159 msg="got the commits, performing rendering"
level=info timestamp=2019-07-30T04:11:38.8059129Z caller=main.go:228 msg="release notes written to file" path=/tmp/release-notes-509576676 format=markdown

You can also generate the raw notes data into JSON. You can then use a variety of tools (such as jq) to slice and dice the output:

[
  {
    "text": "fixed incorrect OpenAPI schema for CustomResourceDefinition objects",
    "author": "liggitt",
    "author_url": "https://github.com/liggitt",
    "pr_url": "https://github.com/kubernetes/kubernetes/pull/65256",
    "pr_number": 65256,
    "kinds": [
      "bug"
    ],
    "sigs": [
      "api-machinery"
    ]
  }
]

if you would like to debug a run, use the -debug flag:

$ export GITHUB_TOKEN=a_github_api_token
$ release-notes \
  -start-sha 02dc3d713dd7f945a8b6f7ef3e008f3d29c2d549 \
  -end-sha   23649560c060ad6cd82da8da42302f8f7e38cf1e \
  -debug 

level=debug timestamp=2019-07-30T04:02:43.8453116Z caller=notes.go:445 msg=################################################
level=info timestamp=2019-07-30T04:02:43.8454168Z caller=notes.go:446 msg="[1/1679 - 0.06%]"
level=debug timestamp=2019-07-30T04:02:43.8454701Z caller=notes.go:447 msg="Processing commit" func=ListCommitsWithNotes sha=23649560c060ad6cd82da8da42302f8f7e38cf1e
level=debug timestamp=2019-07-30T04:02:44.3711956Z caller=notes.go:464 msg="Obtaining PR associated with commit sha '23649560c060ad6cd82da8da42302f8f7e38cf1e'." func=ListCommitsWithNotes prno=80301 prbody="**What type of PR is this?**\r\n> Uncomment only one ` /kind <>` line, hit enter to put that in a new line, and remove leading whitespaces from that line:\r\n>\r\n> /kind api-change\r\n> /kind bug\r\n\r\n/kind cleanup\r\n\r\n> /kind design\r\n> /kind documentation\r\n> /kind failing-test\r\n> /kind feature\r\n> /kind flake\r\n\r\n**What this PR does / why we need it**:\r\n\r\nBased on the feedback from https://docs.google.com/document/d/1g5Aqa0BncQGRedSJH0TJQWq3mw3VxpJ_ufO1qokJ1LE we have decided to rename the `preferred` policy of the `TopologyManager` to `best-effort`.  The reasoning for this is outlined in the document.\r\n\r\nSince this change is coming before the `TopologyManager` was ever part of a release, this does not introduce a user-facing change.\r\n\r\n**Does this PR introduce a user-facing change?**:\r\n<!--\r\nIf no, just write \"NONE\" in the release-note block below.\r\nIf yes, a release note is required:\r\nEnter your extended release note in the block below. If the PR requires additional action from users switching to the new release, include the string \"action required\".\r\n-->\r\n```release-note\r\nNONE\r\n```"
level=debug timestamp=2019-07-30T04:02:44.3716249Z caller=notes.go:497 msg="Excluding notes for PR based on the exclusion filter." func=ListCommitsWithNotes filter="(?i)```(release-note\\s*)?('|\")?(none|n/a)?('|\")?\\s*```"
...

Options

Flag Env Variable Default Value Required Description
GITHUB REPO OPTIONS
GITHUB_TOKEN Yes A personal GitHub access token
github-org GITHUB_ORG kubernetes Yes Name of GitHub organization
github-repo GITHUB_REPO kubernetes Yes Name of GitHub repository
required-author REQUIRED_AUTHOR k8s-ci-robot Yes Only commits from this GitHub user are considered. Set to empty string to include all users
branch BRANCH master Yes The GitHub repository branch to scrape
start-sha START_SHA Yes The commit hash to start processing from (inclusive)
end-sha END_SHA Yes The commit hash to end processing at (inclusive)
repo-path REPO_PATH /tmp/k8s-repo No Path to a local Kubernetes repository, used only for tag discovery
start-rev START_REV No The git revision to start at. Can be used as alternative to start-sha
env-rev END_REV No The git revision to end at. Can be used as alternative to end-sha
discover DISCOVER none No The revision discovery mode for automatic revision retrieval (options: none, mergebase-to-latest, patch-to-patch, patch-to-latest, minor-to-minor)
release-bucket RELEASE_BUCKET kubernetes-release No Specify gs bucket to point to in generated notes (default "kubernetes-release")
release-tars RELEASE_TARS No Directory of tars to sha512 sum for display
OUTPUT OPTIONS
output OUTPUT No The path where the release notes will be written
format FORMAT go-template:default Yes The format for notes output (options: json, go-template:inline: go-template:path/to/template.file)
release-version RELEASE_VERSION No The release version to tag the notes with
dependencies true No Add dependency report
LOG OPTIONS
debug DEBUG false No Enable debug logging (options: true, false)

Building From Source

To build the release-notes tool, check out this repo to your $GOPATH:

git clone [email protected]:kubernetes/release.git $(go env GOPATH)/src/k8s.io/release

Run the following from the root of the repository to build the release-notes binary:

bazel build //cmd/release-notes

Use the -h flag for help:

./bazel-bin/cmd/release-notes/darwin_amd64_stripped/release-notes -h

Install the binary into your path:

cp ./bazel-bin/cmd/release-notes/darwin_amd64_stripped/release-notes /usr/local/bin/release-notes

FAQ

What do generated notes look like?

Check out the rendering of 1.11's release notes here.

What formats are supported?

Right now the tool can output release notes in Markdown and JSON. The tool also supports arbitrary formats using go-templates. The template has access to fields in the Document struct. For an example, see the default markdown template (pkg/notes/internal/template.go) used to render the stock format.