Release Process

In order to create a new release of any chart, follow these steps:

Set the chart name in question
```
CHART_NAME="cluster"
```
Take note of the current value of the release: see .version in charts/$CHART_NAME/Chart.yaml
```
yq -r '.version' charts/$CHART_NAME/Chart.yaml
```
Decide which version to create, depending on the kind of changes and backwards compatibility, following semver semantics. For this document, let's call it X.Y.Z
```
NEW_VERSION="X.Y.Z"
```
Create a branch: named release/$CHART_NAME-vX.Y.Z and switch to it
```
git checkout -b release/$CHART_NAME-v$NEW_VERSION
```

Update the .version in the Chart.yaml file to "X.Y.Z"

sed -i -E "s/^version: ([0-9]+.?)+/version: $NEW_VERSION/" charts/$CHART_NAME/Chart.yaml

Run make docs schema to regenerate the docs and the values schema in case it is needed
```
make docs schema
```

Commit and add the relevant information you wish in the commit message.

git add .
git commit -S -s -m "Release $CHART_NAME-v$NEW_VERSION" --edit

Push the new branch

git push --set-upstream origin release/$CHART_NAME-v$NEW_VERSION

A PR should be automatically created
Wait for all the checks to pass
Two approvals are required in order to merge the PR, if you are a maintainer approve the PR yourself and ask for another approval, otherwise ask for two approvals directly.
Merge the PR squashing all commits and taking care to keep the commit message to be Release CHART_NAME-vX.Y.Z
A release CHART_NAME-vX.Y.Z should be automatically created which will then trigger the release action. Verify they both are successful.

Once done you should be able to run:

helm repo add cnpg-grafana https://cloudnative-pg.github.io/grafana-dashboards
helm repo update
helm search repo cnpg

and be able to see the new version X.Y.Z as CHART VERSION for cluster

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