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github.com/tiredofit/docker-loki

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About

This will build a docker image for loki a log aggregation system..

  • Sane defaults to have a working solution by just running the image
  • Automatically generates configuration files on startup, or option to use your own
  • Choice of Logging (Console, File, Syslog)

Maintainer

Table of Contents

Prerequisites and Assumptions

  • Assumes you are using some sort of SSL terminating reverse proxy such as:

Installation

Build from Source

Clone this repository and build the image with docker build -t (imagename) .

Prebuilt Images

Builds of the image are available on Docker Hub

docker pull docker.io/tiredofit/loki:(imagetag)

Builds of the image are also available on the Github Container Registry

docker pull ghcr.io/tiredofit/docker-loki:(imagetag)

The following image tags are available along with their tagged release based on what's written in the Changelog:

Version Container OS Tag
latest Alpine :latest

Configuration

Quick Start

  • The quickest way to get started is using docker-compose. See the examples folder for a working docker-compose.yml that can be modified for development or production use.

Persistent Storage

The following directories should be mapped for persistent storage in order to utilize the container effectively.

Folder Description

Environment Variables

Base Images used

This image relies on an Alpine Linux base image that relies on an init system for added capabilities. Outgoing SMTP capabilities are handlded via msmtp. Individual container performance monitoring is performed by zabbix-agent. Additional tools include: bash,curl,less,logrotate, nano.

Be sure to view the following repositories to understand all the customizable options:

Image Description
OS Base Customized Image based on Alpine Linux
Nginx Nginx webserver

There are a huge amount of configuration variables and it is recommended that you get comfortable for a few hours with the loki::NG Documentation

You will eventually based on your usage case switch over to SETUP_TYPE=MANUAL and edit your own loki-ng.ini. While I've tried to make this as easy to use as possible, once in production you'll find much better success with large implementations with this approach.

By Default this image is ready to run out of the box, without having to alter any of the settings with the exception of the _HOSTNAME vars. You can also change the majority of these settings from within the Manager. There are instances where these variables would want to be set if you are running multiple handlers or need to enforce a Global Setting for one specific installation.

Parameter Description Default
SETUP_TYPE AUTO to auto generate loki-ng.ini on bootup, otherwise let admin control configuration. AUTO

Networking

The following ports are exposed.

Port Description

Maintenance

Shell Access

For debugging and maintenance purposes you may want access the containers shell.

bash docker exec -it (whatever your container name is) bash

Support

These images were built to serve a specific need in a production environment and gradually have had more functionality added based on requests from the community.

Usage

  • The Discussions board is a great place for working with the community on tips and tricks of using this image.
  • Sponsor me for personalized support

Bugfixes

  • Please, submit a Bug Report if something isn't working as expected. I'll do my best to issue a fix in short order.

Feature Requests

  • Feel free to submit a feature request, however there is no guarantee that it will be added, or at what timeline.
  • Sponsor me regarding development of features.

Updates

  • Best effort to track upstream changes, More priority if I am actively using the image in a production environment.
  • Sponsor me for up to date releases.

License

MIT. See LICENSE for more details.

References