hastatic

hastatic is a very small web server for serving static files from a Docker container.

Features

• A lightweight web server, just 5 MB in size.
• Statically compiled binary with no dependencies.
• Built for Docker.
• Supports HTTPS.
• Supports custom 404 file.
• Supports custom index files for URLs ending with "/".
• Takes care to not serve hidden files.
• Adds caching headers automatically.
• Adds security headers automatically.
• Caches file descriptors and info for better performance.

Usage

Create a Dockerfile for your website, deriving from abhin4v/hastatic:

FROM abhin4v/hastatic:latest

COPY mywebsite /opt/mywebsite
WORKDIR /opt/mywebsite
CMD ["/usr/bin/hastatic"]

Build and run:

$ docker build -t mywebsite .
$ # run with default configs
$ docker run -p 8080:3000 mywebsite
$ # run with custom configs
$ docker run -e PORT=2000 -e NF_FILE=404.html -e IDX_FILE=index.html -p 8080:2000 mywebsite
$ # run with HTTPS support
$ docker run -e TLS_CERT_FILE=certificate.pem -e TLS_KEY_FILE=key.pem -p 443:3000 mywebsite

Configuration

The Docker image supports these environment variable for configuration:

• PORT: the port to run the web server on, default: 3000
• NF_FILE: name of the custom 404 file, default: 404.html
• IDX_FILE: name of the custom index files, default: index.html
• TLS_CERT_FILE: TLS certification file, optional, required for HTTPS support
• TLS_KEY_FILE: TLS key file, optional, required for HTTPS support

Internals

hastatic is written in Haskell, just 60 lines of it. It uses the excellent Warp server underneath with the warp-tls package for HTTPS support.