dnscontrol/docs/release-engineering.md

layout	title
default	How to build and ship a release

How to build and ship a release

These are the instructions for producing a release.

CircleCI will do most of the work for you. You will need to edit the draft release notes.

Please change the version number as appropriate. Substitute (for example) 3.20.0 any place you see VERSION in this doc.

Step 1. Tag the commit in master that you want to release

git checkout master
git tag -a v3.20.0
git push origin --tags

See Git Docs for more examples.

Soon after CircleCI will start a build Workflow and produce all of the artifacts for the release.

Step 2. Create the release notes

The draft release notes are created for you. In this step you'll edit them.

The CircleCI build uses GoReleaser which produces the GitHub Release with Release Notes derived from the commit history between now and the last tag. These notes are just a draft and needs considerable editing. You can also find a copy of the release notes in the CircleCI release job Artifacts. These release notes will be used in multiple places (release notes, email announcements, etc.)

Release notes style guide:

• Entries in the bullet list should be phrased in the positive: "Feature FOO now does BAR". This is often the opposite of the related issue, which was probably phrased, "Feature FOO is broken because of BAR".
• Every item should include the ID of the issue related to the change. If there was no issue, create one and close it.
• Sort the list most important/exciting changes earlier in the list.
• Items related to a specific provider should begin with the all-caps name of the provider, such as "ROUTE53: Added support for sandwiches (#100)"
• The Deprecation warnings section should just copy from README.md. If you change one, change it in the README too (you can make that change in this PR).

See https://github.com/StackExchange/dnscontrol/releases for examples for recent release notes and copy that style.

Template:

## Changelog

This release includes many new providers (FILL IN), dozens
of bug fixes, and FILL IN.

### Breaking changes:

* FILL IN

### Major features:

* FILL IN

### Provider-specific changes:

* FILL IN

### Other changes and improvements:

* FILL IN

### Deprecation warnings

Step 2. Announce it via email

Email the release notes to the mailing list: (note the format of the Subject line and that the first line of the email is the URL of the release)

To: dnscontrol-discuss@googlegroups.com
Subject: New release: dnscontrol v$VERSION

https://github.com/StackExchange/dnscontrol/releases/tag/v$VERSION

[insert the release notes here]

NOTE: You won't be able to post to the mailing list unless you are on it. Click here to join.

Step 3. Announce it via chat

Mention on https://gitter.im/dnscontrol/Lobby that the new release has shipped.

ANNOUNCEMENT: dnscontrol v$VERSION has been released! https://github.com/StackExchange/dnscontrol/releases/tag/v$VERSION

Step 4. Get credit

Mention the fact that you did this release in your weekly accomplishments.

If you are at Stack Overflow:

• Add the release to your weekly snippets
• Run this build: dnscontrol_embed - Promote most recent artifact into ExternalDNS repo

Tip: How to bump the major version

If you bump the major version, you need to change all the source files. The last time this was done (v2 -> v3) these two commands were used. They're included her for reference.

#  Make all the changes:
sed -i.bak -e 's@github.com.StackExchange.dnscontrol.v2@github.com/StackExchange/dnscontrol/v3@g' go.* $(fgrep -lri --include '*.go' github.com/StackExchange/dnscontrol/v2 *)
# Delete the backup files:
find * -name \*.bak -delete

Tip: How to rebuild flattener

Rebuilding flatter requites go1.17.1 and the gopherjs compiler.

Install go1.17.1:

go install golang.org/dl/go1.17.1@latest
go1.17.1 download

Install gopherjs:

go install github.com/gopherjs/gopherjs@latest

Build the software:

NOTE: GOOS can't be Darwin because GOPHERJS doesn't support it.

cd docs/flattener
export GOPHERJS_GOROOT="$(go1.17.1 env GOROOT)"
export GOOS=linux
gopherjs build

Tip: How to update modules

List out-of-date modules and update any that seem worth updating:

go install github.com/oligot/go-mod-upgrade@latest
go-mod-upgrade
go mod tidy

OLD WAY:

go install github.com/psampaz/go-mod-outdated@latest
go list -mod=mod -u -m -json all | go-mod-outdated -update -direct

# If any are out of date, update via:

go get module/path

# Once the updates are complete, tidy up:

go mod tidy