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DocumentationGrafana Loki documentationInstallationInstall using HelmInstall single binary Loki

Install the Single Binary Helm Chart

This Helm Chart installation runs the Grafana Loki single binary within a Kubernetes cluster.

If you set the singleBinary.replicas value to 1, this chart configures Loki to run the all target in a monolithic mode, designed to work with a filesystem storage. It will also configure meta-monitoring of metrics and logs. If you set the singleBinary.replicas value to 2 or more, this chart configures Loki to run a single binary in a replicated, highly available mode. When running replicas of a single binary, you must configure object storage.

Before you begin: Software Requirements

• Helm 3 or above. See Installing Helm.
• A running Kubernetes cluster

To deploy Loki in monolithic mode:

1. Add Grafana’s chart repository to Helm:

   bash Copy

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

2. Update the chart repository:

   bash Copy

   helm repo update

3. Create the configuration file values.yaml:

   • If running a single replica of Loki, configure the filesystem storage:

     yaml Copy

     loki:
       commonConfig:
         replication_factor: 1
       storage:
         type: 'filesystem'
     singleBinary:
       replicas: 1

   • If running Loki with a replication factor greater than 1, set the desired number replicas and provide object storage credentials:

     yaml Copy

     loki:
       commonConfig:
         replication_factor: 3
       storage:
         type: 's3'
         s3:
           endpoint: foo.aws.com
           bucketnames: loki-chunks
           secret_access_key: supersecret
           access_key_id: secret
     singleBinary:
       replicas: 3

4. Deploy the Loki cluster using one of these commands.

   • Deploy with the defined configuration:

     bash Copy

     helm install --values values.yaml loki grafana/loki

   • Deploy with the defined configuration in a custom Kubernetes cluster namespace:

     bash Copy

     helm install --values values.yaml loki --namespace=loki grafana/loki