Making an Operator SDK release involves:
CHANGELOG.mdand migration guide.
- Tagging and signing a git commit and pushing the tag to GitHub.
- Building a release binary and signing the binary
- Creating a release by uploading binary, signature, and
CHANGELOG.mdupdates for the release to GitHub.
- Creating a release branch of the form
v1.2.xfor each major and minor release.
Release steps can be found below. If you have not run a release before we recommend reading through the sections directly following this one.
Dependency and platform support
Release binaries will be built with the Go compiler version specified in the Operator SDK’s prerequisites section.
As the Operator SDK interacts directly with the Kubernetes API, certain API features are assumed to exist in the target cluster. The currently supported Kubernetes version will always be listed in the SDK prerequisites section.
Operating systems and architectures
Release binaries will be built for the
x86_64 architecture for MacOS Darwin platform and for the following GNU Linux architectures:
Base images for ansible-operator, helm-operator, and scorecard-test will be built for the following GNU Linux architectures:
Support for the Windows platform is not on the roadmap at this time.
Binaries and signatures
Binaries will be signed using a maintainers’ verified GitHub PGP key. Both binary and signature will be uploaded to the release. Ensure you import maintainer keys to verify release binaries.
Every release will have a corresponding git semantic version tag beginning with
Note: the email the key is issued for must be the email you use for git.
$ git config [--global] user.signingkey "$GPG_KEY_ID" $ git config [--global] user.email "$GPG_EMAIL"
Also, make sure that you setup the git gpg config as follows.
$ cat ~/.gnupg/gpg.conf default-key $GPG_KEY_ID
NOTE If you do a release from an OSX machine, you need to configure
gnu-gpg to sign the release’s tag:
- Install the requirements by running:
brew install gpg2 gnupg pinentry-mac
- Append the following to your ~/.bash_profile or ~/.bashrc or ~/.zshrc
- Restart your Terminal or source your ~/.*rc file
- Then, make sure git uses gpg2 and not gpg
$ git config --global gpg.program gpg2
- To make sure gpg2 itself is working
$ echo "test" | gpg2 --clearsign
Each minor release has a corresponding release branch of the form
Y are the major and minor
release version numbers and the
x is literal. This branch accepts bug fixes according to our backport policy.
After the minor release is made, this branch must be fast-forwarded to that release’s tag and a post-release PR made against this branch. See the release process for more details.
Once a minor release is complete, bug fixes can be merged into the release branch for the next patch release.
Fixes can be added automatically by posting a
/cherry-pick v1.3.x comment in the
master PR, or manually by running:
$ git checkout v1.3.x $ git checkout -b cherrypick/some-bug $ git cherry-pick "$GIT_COMMIT_HASH" # Hash of the merge commit to master. $ git push upstream cherrypick/some-bug
Create and merge a PR from your branch to
GitHub release information
Locking down branches
Once a release PR has been made and all tests pass, the SDK’s
master branch, or release branch for patch releases,
should be locked so commits cannot happen between the release PR and release tag push. To lock down a branch:
- Go to
Settings -> Branchesin the SDK repo.
Branch protection rules, click
masteror release branches rule.
- In section
Protect matching branchesof the
Rule settingsbox, increase the number of required approving reviewers to its maximum allowed value.
Now only administrators (maintainers) should be able to force merge PRs. Make sure everyone in the relevant Slack channel is aware of the release so they do not force merge by accident.
master or release branch after the release has completed (after step 6 is complete) by changing the number of required approving reviewers back to 1.
GitHub release notes should thoroughly describe changes made to code, documentation, and design of the SDK. PR links should be included wherever possible.
The following sections, often directly copied from our changelog, are used as release notes:
[Version as title, ex. v1.2.3] ### Added - [Short description of feature added] (#PR) ... ### Changed - [Short description of change made] (#PR) ... ### Deprecated - [Short description of feature deprecated] (#PR) ... ### Removed - [Short description of feature removed] (#PR) ... ### Bug Fixes - [Short description of bug and fix] (#PR) ...
When a new release is created, the tag for the commit it signed with a maintainers’ gpg key and the binaries for the release are also signed by the same key. All keys used by maintainers will be available via public PGP keyservers such as pool.sks-keyservers.net.
For new maintainers who have not done a release and do not have their PGP key on a public keyserver, output your armored public key using this command:
$ gpg --armor --export "$GPG_EMAIL" > mykey.asc
Then, copy and paste the content of the outputted file into the
Submit a key section on
pool.sks-keyservers.net or any other public keyserver that synchronizes
the key to other public keyservers. Once that is done, other people can download your public
key and you are ready to sign releases.
Verifying a release
To verify a git tag, use this command:
$ git verify-tag --verbose "$TAG_NAME"
If you do not have the mantainers public key on your machine, you will get an error message similiar to this:
$ git verify-tag --verbose "$TAG_NAME" object 61e0c23e9d2e217f8d95ac104a8f2545c102b5c3 type commit tag v0.6.0 tagger Ish Shah <email@example.com> 1552688145 -0700 Operator SDK v0.6.0 gpg: Signature made Fri Mar 15 23:15:45 2019 CET gpg: using RSA key <KEY_ID> gpg: Can't check signature: No public key
To download the key, use the following command, replacing
$KEY_ID with the RSA key string provided in the output of the previous command:
$ gpg --recv-key "$KEY_ID"
To verify a release binary using the provided asc files see the installation guide.
These steps describe how to conduct a release of the SDK, upgrading from
Replace these versions with the current and new version you are releasing, respectively.
For major and minor releases,
master should be locked between steps 3 and 6 so that all commits will be either in the new release
or have a pre-release version, ex.
v1.2.0+git. Otherwise commits might be built into a release that shouldn’t be.
For patch releases, ensure all required bugs are cherry-picked, then the release branch
v1.3.x should be locked down.
1. Update OLM bindata
This step is to be preferably performed only during major releases. Update the
OLM_VERSION variable in Makefile to the latest successful release of OLM. Run
make bindata so that
internal/bindata/olm is updated. Also, update the
availableVersions map in
internal/bindata/olm/versions.go to contain the version of OLM which you have specified in the Makefile.
Submit a PR with the changes and merge it with master.
- Update OLM bindata just before starting the release so that we have the latest OLM version.
- Verify that the release of OLM version which you specify in Makefile is successful.
2. Netlify configuration
Important: ensure a release branch-to-subdomain mapping exists in the SDK’s Netlify configuration prior to creating a release,
https://v1-3-x.sdk.operatorframework.io. You can ping SDK approvers to ensure a
release branch is created prior to the release and that this mapping is created.
3. Create release branch for Netlify
The release branch must be created before the release occurs to appease the Netlify website configuration demons.
You can do so by running the following before proceeding with the release, assuming the upstream SDK is the
upstream remote repo:
$ git checkout master $ git pull $ git checkout -b v1.3.x $ git push -u upstream v1.3.x
4. Create a PR for release version, CHANGELOG.md, and migration guide updates
Once all PR’s needed for a release have been merged, branch from
$ git checkout master $ git pull
If making a patch release, check out the corresponding minor version branch:
$ git checkout v1.2.x $ git pull
Create a new branch to push release commits:
$ git checkout -b release-v1.3.0
Run the CHANGELOG and migration guide generator:
$ GEN_CHANGELOG_TAG=v1.3.0 make changelog
Commit the following changes:
website/content/en/docs/installation/install-operator-sdk.md: update the linux and macOS URLs to point to the new release URLs.
CHANGELOG.md: commit changes (updated by changelog generation).
website/content/en/docs/upgrading-sdk-version/v1.3.0.md: commit changes (created by changelog generation).
changelog/fragments/*: commit deleted fragment files (deleted by changelog generation).
- (Major and minor releases only)
version_menu = "Releases"with the patch-less version string
version_menu = "v1.3", and add the following lines under
[[params.versions]] version = "v1.3" url = "https://v1-3-x.sdk.operatorframework.io"
5. Lock down proper branch
Create and merge a new PR for
release-v1.3.0. Once this PR is merged, lock down the master or release branch
to prevent further commits between this and step 7. See this section for steps to do so.
6. Create a release tag, binaries, and signatures
release.sh script will take care of verifying versions in files described in step 3, and tagging and verifying the tag, as well as building binaries and generating signatures by calling
gpgdefault PGP keys are set locally.
- Your PGP key is publicly available in a public key server.
- For macOS users: GNU
makewhich are not installed by default. Install them with
$ brew install gnu-sed make
then ensure they are present in your
Call the script with the only argument being the new SDK version:
$ ./release.sh v1.3.0
operator-sdk release binaries and signatures will be in
dist/. Both binary and signature file names contain version, architecture,
and platform information; signature file names correspond to the binary they were generated from suffixed with
For example, signature file
operator-sdk-v1.3.0-x86_64-apple-darwin.asc was generated from a binary named
To verify binaries and tags, see the verification section.
helm-operator release binaries and signatures are similarly built for upload so
can download them in their respective operator type projects. See #3327 for details.
v1.3.0 upstream, assuming
upstream is the name of the upstream remote:
$ git push upstream v1.3.0
Once this tag passes CI, go to step 6. For more info on tagging, see the release tags section.
Note: If CI fails for some reason, you will have to revert the tagged commit, re-commit, and make a new PR.
7. Fast-forward the
latest and release branches
latest branch points to the latest release tag to keep the main website subdomain up-to-date.
Run the following commands to do so:
$ git checkout latest $ git reset --hard tags/v1.3.0 $ git push -f upstream latest
Similarly, to update the release branch, run:
$ git checkout v1.3.x $ git reset --hard tags/v1.3.0 $ git push -f upstream v1.3.x
8. Create a PR for post-release version updates
Check out a new branch from
master or release branch and commit the following changes:
- (Major and minor releases only)
version_menu = "v1.3"to
version_menu = "Releases".
Create a new PR for this branch targeting the
master or release branch.
9. Releasing binaries, signatures, and release notes
The final step is to upload binaries, their signature files, and release notes from
To create a GitHub release:
- Go to the SDK
Releasestab and click the
Draft a new releasebutton in the top right corner.
- Select the tag version
v1.3.0, and set the title to
- Copy and paste
CHANGELOG.mdupdates under the
v1.3.0header into the description form (see below).
- Attach all binaries and
.ascsignature files to the release by dragging and dropping them.
- Click the
Note: if this is a pre-release, make sure to check the
This is a pre-release box under the file attachment frame. If you are not sure what this means, ask another maintainer.
10. Unlock proper branch
master or release branch after the Github release is complete.
See this section for steps to do so.
11. Announce the release
Send an email to the mailing list Post to Kubernetes slack in #kubernetes-operators and #operator-sdk-dev.
12. Bump open issues to the next release.
In the GitHub milestone, bump any open issues to the following release.
You’ve now fully released a new version of the Operator SDK. Good work!