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Install the monolithic 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

To deploy Loki in monolithic mode:

  1. Add Grafana’s chart repository to Helm:

    bash
    helm repo add grafana https://grafana.github.io/helm-charts
  2. Update the chart repository:

    bash
    helm repo update
  3. Create the configuration file values.yaml:

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

      yaml
      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
      loki:
        commonConfig:
          replication_factor: 3
        storage:
          bucketNames:
            chunks: loki-chunks
            ruler: loki-ruler
            admin: loki-admin
          type: 's3'
          s3:
            endpoint: foo.aws.com
            secretAccessKey: supersecret
            accessKeyId: secret
      singleBinary:
        replicas: 3
  4. Deploy the Loki cluster using one of these commands.

    • Deploy with the defined configuration:

      bash
      helm install --values values.yaml loki grafana/loki
    • Deploy with the defined configuration in a custom Kubernetes cluster namespace:

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