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loki/production/helm/README.md

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Loki Helm Chart

Prerequisites

Make sure you have Helm installed and deployed to your cluster. Then add Loki's chart repository to Helm:

$ helm repo add loki https://grafana.github.io/loki/charts

You can update the chart repository by running:

$ helm repo update

Deploy Loki and Promtail to your cluster

$ helm upgrade --install loki loki/loki-stack

Deploy Loki only

$ helm upgrade --install loki loki/loki --set "loki.serviceName=my-loki"

Deploy Promtail only

$ helm upgrade --install promtail loki/promtail

Deploy Grafana to your cluster

To install Grafana on your cluster with helm, use the following command:

$ helm install stable/grafana -n loki-grafana

To get the admin password for the Grafana pod, run the following command:

$  kubectl get secret --namespace <YOUR-NAMESPACE> loki-grafana -o jsonpath="{.data.admin-password}" | base64 --decode ; echo

To access the Grafana UI, run the following command:

$ kubectl port-forward --namespace <YOUR-NAMESPACE> service/loki-grafana 3000:80

Navigate to http://localhost:3000 and login with admin and the password output above. Then follow the instructions for adding the loki datasource, using the URL http://loki:3100/.

How to contribute

If you want to add any feature to helm chart, you can follow as below:

$ # do some changes to loki/promtail in the corresponding directory
$ make helm
$ helm upgrade --install loki ./loki-stack-*.tgz

After verify changes, need to bump chart version. For example, if you update the loki chart, you need to bump the version as following:

$ # update version loki/Chart.yaml
$ # update version loki-stack/Chart.yaml