How to Install Loki on Ubuntu Server Latest

Loki is a horizontally scalable, highly available, multi-tenant log storage system used for operational analytics. The following tutorial will guide you through the process of installing Loki on Ubuntu Server Latest.

Prerequisites

Before you begin, ensure that you have:

• sudo access to an Ubuntu Server Latest installation.
• Basic knowledge of using the Linux command line.

Step 1: Add Loki Repository

To install Loki on Ubuntu Server Latest, you will need to add the Loki repository to your system by running the following commands:

$ curl -s https://packagecloud.io/install/repositories/grafana/loki/script.deb.sh | sudo bash
$ sudo apt-get update

Step 2: Install Loki

Once the repository is added successfully, you can proceed to install Loki by running the following command:

$ sudo apt-get install loki

Step 3: Configure Loki

After installation, you need to configure Loki by editing the configuration file located at /etc/loki/loki-local-config.yaml. Open the configuration file in your preferred text editor and make the necessary changes to the following sections:

Server Configuration

The server configuration section allows you to specify the server's network configuration, such as the IP and port number:

server:
  http_listen_port: 3100

Storage Configuration

The storage configuration section specifies the storage settings for Loki data:

storage_config:
  boltdb:
    directory: /var/lib/loki/index
  filesystem:
    directory: /var/lib/loki/chunks

Log Processing Configuration

The log processing configuration section is used to configure log processing pipelines:

ingester:
  lifecycler:
    address: 127.0.0.1
    ring:
      kvstore:
        store: inmemory
      replication_factor: 1
    final_sleep: 0s
  chunk_idle_period: 5m
  max_chunk_age: 1h
  chunk_target_size: 1048576
  chunk_retain_period: 30s
  max_transfer_retries: 0

schema_config:
  configs:
    - from: 2022-01-01
      store: boltdb
      object_store: filesystem
      schema: v11
      index:
        prefix: index_
        period: 1m

compactor:
  working_directory: /tmp/loki-compactor
  compaction:
    interval: 1h
    parallelism: 1
    delete_delay: 24h
    expect_drop_in_fileset: false
    reserved:

Prometheus Configuration

The Prometheus configuration section allows you to configure Prometheus-related settings:

server:
  http_listen_port: 3100

prometheus_client:
  config:
    scrape_configs:
      - job_name: loki
        static_configs:
          - targets: ['localhost:3100']

Once you're done editing the configuration file, save it and exit.

Step 4: Start Loki

Finally, you can start the Loki service by running the following command:

$ sudo systemctl start loki

You can also enable Loki to start automatically at system boot by running:

$ sudo systemctl enable loki

Conclusion

You have now installed Loki on Ubuntu Server Latest and configured it to use your desired settings. You can now start using Loki for your operational analytics needs.

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