SRV

srv is a small Go application to use as a container or as a base Docker image in other projects to serve static files over HTTP

Features

• Compatible with amd64, 386, arm64, arm32v7, arm32v6, ppc64le, s390x and riscv64 CPU architectures
• Runs without root as user ID 1000
• Based on the scratch docker image for a tiny size of 9.11MB (uncompressed amd64 image)
• Docker image tags and sizes
• Prometheus metrics available on :9091

Setup

As a container

We assume your static files are at /yourpath on your host.

1. Ensure the ownership of your static files matches the ones from the container:

   chown -R 1000 /yourpath

2. Run the container, bind mounting /yourpath to /srv as ready only:

   docker run -d -p 8000:8000/tcp -v /yourpath:/srv:ro qmcgaw/srv

   You can also use docker-compose.yml with:

   docker-compose up -d

3. You can update the image with docker pull qmcgaw/srv or use one of the tags available

As a base image

You can use it in your own project with:

FROM qmcgaw/srv
COPY --chown=1000 srv /srv

Or with a multi stage Dockerfile:

FROM someimage AS staticbuilder
COPY . .
RUN somecompiler --output-to=/tmp/build

FROM qmcgaw/srv
COPY --from=staticbuilder --chown=1000 /tmp/build /srv

Environment variables

Environment variable	Default	Possible values	Description
HTTP_SERVER_ADDRESS	:8000	Valid address	HTTP server listening address
HTTP_SERVER_ROOT_URL	/	URL path	HTTP server root URL
HTTP_SERVER_LOG_REQUESTS	on	on or off	Log requests and responses information
FILEPATH_SRV	/srv	Valid file path	File path to your static files directory
METRICS_SERVER_ADDRESS	:9090	Valid address	Prometheus HTTP server listening address
LOG_LEVEL	info	debug, info, warning, error	Logging level
HEALTH_SERVER_ADDRESS	127.0.0.1:9999	Valid address	Health server listening address
TZ	America/Montreal	string	Timezone

Development

1. Setup your environment

   Using VSCode and Docker (easier)

   1. Install Docker
      • On Windows, share a drive with Docker Desktop and have the project on that partition
      • On OSX, share your project directory with Docker Desktop
   2. With Visual Studio Code, install the remote containers extension
   3. In Visual Studio Code, press on F1 and select Remote-Containers: Open Folder in Container...
   4. Your dev environment is ready to go!... and it's running in a container 👍 So you can discard it and update it easily!

   Locally

   1. Install Go, Docker and Git

   2. Install Go dependencies with

      go mod download

   3. Install golangci-lint

   4. You might want to use an editor such as Visual Studio Code with the Go extension. Working settings are already in .vscode/settings.json.

2. Commands available:

   # Build the binary
   go build cmd/app/main.go
   # Test the code
   go test ./...
   # Lint the code
   golangci-lint run
   # Build the Docker image
   docker build -t qmcgaw/srv .

3. See Contributing for more information on how to contribute to this repository.

License

This repository is under an MIT license unless otherwise indicated