Loki Helm Chart
Prerequisites
Make sure you have Helm installed.
Get Repo Info
helm repo add grafana https://grafana.github.io/helm-charts
helm repo update
See helm repo for command documentation.
Deploy Loki only
helm upgrade --install loki grafana/loki
Run Loki behind https ingress
If Loki and Promtail are deployed on different clusters you can add an Ingress in front of Loki. By adding a certificate you create an https endpoint. For extra security enable basic authentication on the Ingress.
In Promtail set the following values to communicate with https and basic auth
loki:
serviceScheme: https
user: user
password: pass
Sample helm template for ingress:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: loki
annotations:
kubernetes.io/ingress.class: {{ .Values.ingress.class }}
ingress.kubernetes.io/auth-type: basic
ingress.kubernetes.io/auth-secret: {{ .Values.ingress.basic.secret }}
spec:
rules:
- host: {{ .Values.ingress.host }}
http:
paths:
- backend:
service:
name: loki
port:
number: 3100
path: /
pathType: Prefix
tls:
- hosts:
- {{ .Values.ingress.host }}
secretName: {{ .Values.ingress.cert }}
Use Loki Alerting
You can add your own alerting rules with alerting_groups in values.yaml. This will create a ConfigMap with your rules and additional volumes and mounts for Loki.
This does not enable the Loki ruler component which does the evaluation of your rules. The values.yaml file does contain a simple example. For more details take a look at the official alerting docs.