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document breaking change (#202)

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Jeff Billimek 2020-04-14 12:59:12 -04:00 committed by GitHub
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2
charts/blocky/Chart.yaml
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@ -2,7 +2,7 @@ apiVersion: v1
appVersion: "v0.6"
description: DNS proxy as ad-blocker for local network
name: blocky
version: 2.3.0
version: 3.0.0
keywords:
- blocky
- dbs

26
charts/blocky/README.md
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@ -46,3 +46,29 @@ Alternatively, a YAML file that specifies the values for the above parameters ca
```console
helm install --name blocky -f values.yaml billimek/blocky
```
## Upgrading an existing Release to a new major version
A major chart version change (like 2.2.2 -> 3.0.0) indicates that there is an
incompatible breaking change needing manual actions.
### Upgrading from 2.x.x to 3.x.x
Due to the renaming of the service port, an upgrade-in-place will not work. The following are possible approaches to solve this:
#### Helm force upgrade
```sh
helm upgrade --force
```
#### Delete the existing `blocky` service prior to upgrading
```sh
kubectl delete svc/blocky
```
#### Remove the existing blocky chart first
This is the 'easiest' approach, but will incur downtime which can be problematic if you rely on blocky for DNS