Incident postmortem
Bitnami update breaks post v0.4.0 releases
On June 2, 2022, GitHub user peytondmurray reported [issue 1306](https://github.com/Quansight/qhub/issues/1306), stating that he was unable to deploy QHub using either the latest release `v0.4.1` or installing `qhub` from `main`. As verified by peytondmurray and others, during your first `qhub deploy`, the deployment halts and complains about two invalid Helm charts missing from the bitnami `index.yaml`.
[Bitnami's decision to update how long they keep old Helm charts in their index for](https://github.com/bitnami/charts/issues/10539) has essentially broken all post `v0.4.0` versions of QHub.
This is a severe bug that will affect any new user who tries to install and deploy QHub with any version less than `v0.4.2` and greater than or equal to `v0.4.0`.
Given the impact and severity of this bug, the team has decided to quickly cut a hotfix.
AWS deployment failing due to old auto-scaler helm chart
On May 27, 2022, GitHub user tylerpotts reported [issue 1302](https://github.com/Quansight/qhub/issues/1302), stating that he was unable to deploy QHub using the latest release `v0.4.1` (or installing `qhub` from `main`). As described in the original issue, the deployment failed complaining about the deprecated `v1beta` Kubernetes API. This led to the discovery that we were using an outdated `cluster_autoscaler` helm chart.
The solution is to update from `v1beta` to `v1` Kubernetes API for the appropriate resources and update the reference to the `cluster_autoscaler` helm chart.
Given the impact and severity of this bug, the team has decided to quickly cut a hotfix.
Bug fixes
This release is a hotfix for the issue summarized in the following:
* [issue 1319](https://github.com/Quansight/qhub/issues/1319)
* [issue 1306](https://github.com/Quansight/qhub/issues/1306)
* [issue 1302](https://github.com/Quansight/qhub/issues/1302)
What's Changed
* Update minio, postgresql chart repo location by iameskild in [PR 1308](https://github.com/Quansight/qhub/pull/1308)
* Fix broken AWS, set minimum desired size to 1, enable 0 scaling by tylerpotts in [PR 1304](https://github.com/Quansight/qhub/issues/1304)