Simple HTTP Server

Intended to provide a light docker image embedding a tomcat serving a folder.

Configuration

Configuration is done through image parameters. First one is the port (default to 8080) and second one is the docbase (where static website is located - default to /opt/yupiik/www).

Port can be overridden with PORT environment variable and doc base with DOC_BASE one.

By default the server will cache any static resource in memory, if you want to control the cache, tune the following environment variables:

• CACHE_TTL: how long to keep in memory the cached data,

• CACHE_MAX_SIZE: max size in kb of the cache,

• CACHE_MAX_OBJECT_SIZE: max size in kb of each entry in the cache (/20 compared to CACHE_MAX_SIZE is recommended).

For performances, you can also tune the Tomcat protocol configuration:

• TOMCAT_ACCEPT_COUNT backlog size,

• TOMCAT_PROCESSOR_CACHE process cache size (recommended to be ~ the thread count),

• TOMCAT_MAX_THREADS number of processor threads.

Sample usages

Docker

docker run --rm -p 8080:8080 -v /my/www:/my/www  ossyupiik/simple-http-server:$IMAGE_VERSION 8080 /my/www

Then hit http://localhost:8080.

Tip	depending your docker version you can need to set --security-opt seccomp=unconfined option.

Release

The java release is a standard maven release (mvn release:prepare release:perform).

Note	since the project uses Java 17, you must close/release the staging repository on OSS repository manually (we don’t use the sonatype plugin).

Then you can create and push the docker image following this process:

1. Clone the tag you created (or keep the build folder if you still have it),

2. Run mvn package arthur:native-image arthur:image -Dimage.registry=docker.io/ (note: you can change registry if needed).