Install Grafana Loki

KubeRocketCI configures the logging with the help of Grafana Loki aggregation system.

Installation

To install Loki, follow the steps below:

1. Create logging namespace:

   kubectl create namespace logging

2. Add a chart repository:

   helm repo add grafana https://grafana.github.io/helm-charts
   helm repo update
   note

   It is possible to use Amazon Simple Storage Service Amazon S3 as an object storage for Loki. To configure access, please refer to the IRSA for Loki documentation.

3. Install Loki v.2.6.0:

   helm install loki grafana/loki \
     --version 2.6.0 \
     --values values.yaml \
     --namespace logging

   Check out the values.yaml file sample of the Loki customization:

   View: values.yaml

   image:
     repository: grafana/loki
     tag: 2.3.0
   config:
     auth_enabled: false
     schema_config:
       configs:
       - from: 2021-06-01
         store: boltdb-shipper
         object_store: s3
         schema: v11
         index:
           prefix: loki_index_
           period: 24h
     storage_config:
       aws:
         s3: s3://<AWS_REGION>/loki-<CLUSTER_NAME>
       boltdb_shipper:
         active_index_directory: /data/loki/index
         cache_location: /data/loki/boltdb-cache
         shared_store: s3
     chunk_store_config:
       max_look_back_period: 24h
   resources:
     limits:
       memory: "128Mi"
     requests:
       cpu: "50m"
       memory: "128Mi"
   serviceAccount:
     create: true
     name: edp-loki
     annotations:
       eks.amazonaws.com/role-arn: "arn:aws:iam::<AWS_ACCOUNT_ID>:role/AWSIRSA‹CLUSTER_NAME›‹LOKI_NAMESPACE›Loki
   persistence:
     enabled: false

4. Configure custom bucket policy to delete the old data.