Merge pull request #59064 from hyperbolic2346/mwilson/upgrade-creds-fix

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Fixing upgrade charm failing if upgrading from an old enough charm

**What this PR does / why we need it**:
Charms before ~Nov 2017 can not upgrade to charms made after that time due to a race with a missing credential dictionary. This change forces the dictionary to be created before we attempt to use it.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #
https://github.com/juju-solutions/bundle-canonical-kubernetes/issues/474
**Special notes for your reviewer**:

**Release note**:

```release-note
Fixed issue with charm upgrades resulting in an error state.
```
This commit is contained in:
Kubernetes Submit Queue 2018-02-02 04:34:28 -08:00 committed by GitHub
commit 4b8309e315
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

View File

@ -74,6 +74,7 @@ def upgrade_charm():
remove_state('kubernetes-worker.cni-plugins.installed')
remove_state('kubernetes-worker.config.created')
remove_state('kubernetes-worker.ingress.available')
remove_state('worker.auth.bootstrapped')
set_state('kubernetes-worker.restart-needed')