Solves #3722 by making the changes in #3539 more compatible with the previous behavior.
This gives a recovery option for "oops I deleted my helm release" by allowing rollback, which is intended to be a working feature of helm. Note that purging releases removes the history required to rollback, so this doesn't work in that case. However, purging takes significantly more time, so it's harder to accidentally purge everything.
Signed-off-by: Brent <bmperrea@gmail.com>
When using `helm upgrade --install`, if the first release fails, Helm will respond with an error saying that it cannot upgrade from an unknown state.
With this feature, `helm upgrade --install --force` automates the same process as `helm delete && helm install --replace`. It will mark the previous release as DELETED, delete any existing resources inside Kubernetes, then replace it as if it was a fresh install. It will then mark the FAILED release as SUPERSEDED.
* add test for rolling back from a FAILED deployment
* Update naming of release variables
Use same naming as the rest of the file.
* Update rollback test
- Add logging
- Verify other release names not changed
* fix(tiller): Supersede multiple deployments
There are cases when multiple revisions of a release has been
marked with DEPLOYED status. This makes sure any previous deployment
will be set to SUPERSEDED when doing rollbacks.
Closes#2941#3513#3275
Fixes#2437
Two bugs were causing this behavior
- Tiller was marking the previous release superseded when an upgrade
failed.
- Upgrade was diffing against failed releases
This adds a new configuration option to Tiller to limit the number of
records stored per release.
Tiller stores historical release information (helm history, helm
rollback). This makes it possible to set a maximum number of versions
per release.
To enable this feature, use `helm init --history-max NNN`. Note that
because of the restrictions on Deployment objects, you will have to
re-install Tiller to add a limit.
Along the way, I found an unreported bug in the Memory storage driver.
This fixes that bug and adds substantially more tests to catch
regressions.
Closes#2332
Tiller currently hangs indefinitely when deadlocks arise from certain
concurrent operations. This commit removes the nested mutex locking
system from pkg/Storage and relies on resource contention controls in k8s.
Closes#2560
This builds on previous work and adds more logging to follow
the full process of installing, updating, deleting, and rolling back.
This also standardizes capitalization of logs and small formatting
fixes
Environment is supplied with release lock map which allows to lock a
release by name to make sure that update, rollback or uninstall aren't
running on one release at the same time.
There are some places where releases are only located if they are in the
state DEPLOYED. That particular logic was incorrectly used for upgrades.
That caused #1566. While fixing that issue, I found that this was also
the root cause of #1587 (though because it was off by one). I added a
generic method to get the last release, regardless of its status.
This allows some behaviors that previously failed:
- 'helm upgrade' can now be performed on a DELETED release
- 'helm rollback' can now be performed on a DELETED release even if
there is only one revision of that release history.
Closes#1566Closes#1587
Henry Nash
Matt Tucker
Brent
Matthew Fisher
liyongxin
Johnny Bergström
Adam Reese
Matt Butcher
Justin Scott
Taylor Thomas
Adam Reese
Maciej Kwiek
Matt Butcher
fibonacci1729