From 0fbf70bb03047bb4fa84d0cae652af0ea869d5ee Mon Sep 17 00:00:00 2001
From: Christian Segundo
Date: Tue, 12 Sep 2023 19:06:59 +0200
Subject: add readme

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+![Build status](https://badge.buildkite.com/c80bab981b116bcea5fe132688518a97e3b6aedb755b5ef2c1.svg?branch=master)
+
+# Introduction
+
+LanguageTool is an Open Source proof­reading software for English, French,
+German, Polish, and more than 20 other languages.
+
+You can use LanguageTool with a Firefox extension.
+
+This is a container to get the LanguageTool running on a system without java.
+
+[LanguageTool]: https://www.languagetool.org/
+[Firefox extension]: https://addons.mozilla.org/firefox/addon/languagetool
+
+# Usage
+
+The Server is running on port 8010, this port should exposed.
+
+    docker pull docker.io/chn2guevara/languagetool
+    [...]
+    docker run --rm -p 8010:8010 docker.io/chn2guevara/languagetool
+
+Route information can be found at https://languagetool.org/http-api/swagger-ui/#/default, an easy route to test that it's running is `/v2/languages`.
+
+## Configuration
+
+### Java heap size
+
+You can set any Java related option using the `JAVAOPTIONS` environment variable. 
+
+    docker run --rm -it -p 8010:8010 -e JAVAOPTIONS="-Xmx382M" docker.io/chn2guevara/languagetool
+
+### HTTPServerConfig
+
+Any environment variable prefixed with `LT_` is interpreted as an [HTTPServerConfig] option.
+
+    docker run --rm -it -p 8010:8010 -p 9301:9301 \
+      -e LT_prometheusMonitoring=true \
+      docker.io/chn2guevara/languagetool
+    [...]
+   
+    curl -s localhost:9301 | grep -v '^\s*$\|^\s*\#'                                                                                                            (k8s-pro)
+    languagetool_check_matches_total{language="en",mode="ALL",} 1.0
+    languagetool_threadpool_queue_size{pool="lt-server-thread",} 0.0
+    [...]
+
+### n-gram dataset support
+
+To support [ngrams] you need an additional volume or directory mounted to the `/ngrams` directory.
+
+    docker run ... -v /foo:/ngrams ...
+
+### Automatic download
+
+This image can take care of the initial download of any ngram supported language as well as updates. 
+Mount a directory or volume to `/ngrams` and use the `NGRAM_LANGUAGES` environment variable to pass a comma separated string with languages:
+
+    docker run ... -v /path/to/ngrams:/ngrams -e NGRAM_LANGUAGES="en,es" ...
+
+### Manual download
+
+Download and unzip any language with the commands:
+
+    mkdir ngrams
+    wget https://languagetool.org/download/ngram-data/ngrams-en-YYYYMMDD.zip
+    (cd ngrams && unzip ../ngrams-en-YYYYMMDD.zip)
+    rm -f ngrams-en-YYYYMMDD.zip
+
+It is important that the directory structure ends up looking like:
+
+    ngrams/
+     en/
+      ...
+     es/
+      ...
+
+
+[ngrams]: http://wiki.languagetool.org/finding-errors-using-n-gram-data
+[HTTPServerConfig]: https://languagetool.org/development/api/org/languagetool/server/HTTPServerConfig.html
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