Publish Helm chart to repository

[bisgardo]

A repository can apparently be set up easily using GitHub Pages.

[bisgardo]

Set up custom Helm repo on the GitHub Page of this repo using workflow Release Helm charts which uses the helm/chart-releaser-action.

Usage:

• Add the chart to Helm: helm repo add concordium-docker https://bisgardo.github.io/concordium-docker/charts.
• List charts in the repo: helm search repo concordium-docker
• Install or upgrade a release of the chart: helm upgrade --install concordium-node-test concordium-docker/concordium-node --set=network=mainnet --set=nodeName=my-node --set=test.concordiumClientVersion=4.0.3-0
• Test the release: helm test concordium-node-test.

TODO: Add usage instructions to (toplevel) readme.

[bisgardo]

Long done. Only docs are lacking.