40 lines
2.3 KiB
Markdown
40 lines
2.3 KiB
Markdown
# Release Process
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The Kubespray Project is released on an as-needed basis. The process is as follows:
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1. An issue is proposing a new release with a changelog since the last release
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2. At least one of the [OWNERS](OWNERS) must LGTM this release
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3. An OWNER runs `git tag -s $VERSION` and inserts the changelog and pushes the tag with `git push $VERSION`
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4. The release issue is closed
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5. An announcement email is sent to `kubernetes-dev@googlegroups.com` with the subject `[ANNOUNCE] Kubespray $VERSION is released`
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## Major/minor releases, merge freezes and milestones
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* Kubespray does not maintain stable branches for releases. Releases are tags, not
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branches, and there are no backports. Therefore, there is no need for merge
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freezes as well.
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* Fixes for major releases (vX.x.0) and minor releases (vX.Y.x) are delivered
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via maintenance releases (vX.Y.Z) and assigned to the corresponding open
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milestone (vX.Y). That milestone remains open for the major/minor releases
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support lifetime, which ends once the milestone closed. Then only a next major
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or minor release can be done.
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* Kubespray major and minor releases are bound to the given ``kube_version`` major/minor
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version numbers and other components' arbitrary versions, like etcd or network plugins.
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Older or newer versions are not supported and not tested for the given release.
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* There is no unstable releases and no APIs, thus Kubespray doesn't follow
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[semver](http://semver.org/). Every version describes only a stable release.
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Breaking changes, if any introduced by changed defaults or non-contrib ansible roles'
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playbooks, shall be described in the release notes. Other breaking changes, if any in
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the contributed addons or bound versions of Kubernetes and other components, are
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considered out of Kubespray scope and are up to the components' teams to deal with and
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document.
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* Minor releases can change components' versions, but not the major ``kube_version``.
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Greater ``kube_version`` requires a new major or minor release. For example, if Kubespray v2.0.0
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is bound to ``kube_version: 1.4.x``, ``calico_version: 0.22.0``, ``etcd_version: v3.0.6``,
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then Kubespray v2.1.0 may be bound to only minor changes to ``kube_version``, like v1.5.1
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and *any* changes to other components, like etcd v4, or calico 1.2.3.
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And Kubespray v3.x.x shall be bound to ``kube_version: 2.x.x`` respectively.
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