This is the fix for only one particular, but important case.
The case when a new resource has been added to the chart and
there is an error in the chart, which leads to release failure.
In this case after first failed release upgrade new resource will be
created in the cluster. On the next release upgrade there will be the error:
`no RESOURCE with the name NAME found` for this newly created resource
from the previous release upgrade.
The root of this problem is in the side effect of the first release process,
Release invariant says: if resouce exists in the kubernetes cluster, then
it should exist in the release storage. But this invariant has been broken
by helm itself -- because helm created new resources as side effect and not
adopted them into release storage.
To maintain release invariant for such case during release upgrade operation
all newly *successfully* created resources will be deleted in the case
of an error in the subsequent resources update.
This behaviour will be enabled only when `--cleanup-on-fail` option used
for `helm upgrade` or `helm rollback`.
Signed-off-by: Timofey Kirillov <timofey.kirillov@flant.com>
Address a race condition that arises when running two `helm install`
commands, both of which specify a namespace that does not already exist.
In this specific instance, attempting to create a `namespace` which
already exists shouldn't be a failure which causes `helm install` to
terminate.
It is now possible to create plugins with chart download capabilities for custom, non-http protocols.
Furthermore it is possible to reuse helm packages to implement alternative clients with these custom downloader functions.
* This is a simple mvp which processes a test definition with the
hook annotation for test when you run `helm test [release]`
* helm client cmd, proto def, tiller logic
Installs, rollback, upgrade, and delete now accept a `--timeout` flag
that allows the user to specify the maximum number of seconds that
any kubernetes command can take.
Closes#1678