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Local

Install and run Loki locally

In order to log events with Loki, you must download and install both Promtail and Loki.

  • Loki is the logging engine.
  • Promtail sends logs to Loki.

Install and run

  1. Navigate to the release page.
  2. Scroll down to the Assets section under the version that you want to install.
  3. Download the Loki and Promtail .zip files that correspond to your system. Note: Do not download LogCLI or Loki Canary at this time. LogCLI allows you to run Loki queries in a command line interface. Loki Canary is a tool to audit Loki performance.
  4. Unzip the package contents into the same directory. This is where the two programs will run.
  5. In the command line, change directory (cd on most systems) to the directory with Loki and Promtail. Copy and paste the commands below into your command line to download generic configuration files:
wget https://raw.githubusercontent.com/grafana/loki/master/cmd/loki/loki-local-config.yaml
wget https://raw.githubusercontent.com/grafana/loki/master/cmd/promtail/promtail-local-config.yaml
  1. Enter the following command to start Loki:

Windows

.\loki-windows-amd64.exe --config.file=loki-local-config.yaml

Linux

./loki-linux-amd64 -config.file=loki-local-config.yaml

Loki runs and displays Loki logs in your command line and on http://localhost:3100/metrics.

Congratulations, Loki is installed and running! Next, you might want edit the Promtail config file to get logs into Loki.

Release binaries - openSUSE Linux only

Every release includes binaries for Loki which can be found on the Releases page.

Community openSUSE Linux packages

The community provides packages of Loki for openSUSE Linux. To install:

  1. Add the repository https://download.opensuse.org/repositories/security:/logging/ to your system. For example, if you are using Leap 15.1, run sudo zypper ar https://download.opensuse.org/repositories/security:/logging/openSUSE_Leap_15.1/security:logging.repo ; sudo zypper ref
  2. Install the Loki package with zypper in loki
  3. Enable the Loki and Promtail services:
  • systemd start loki && systemd enable loki
  • systemd start promtail && systemd enable promtail
  1. Modify the configuration files as needed: /etc/loki/promtail.yaml and /etc/loki/loki.yaml.