commandd

Daemon exposing the output of any arbitrary command over HTTP.

Requirements

• Go 1.13

Configuration

The commandd daemon allows basic configuration through flags. Comes with reasonable defaults.

$ ./commandd -help
Usage of ./commandd:
  -addr string
    	Address to listen on (default ":8080")
  -pattern string
    	Pattern to serve to (default "/run")
  -timeout duration
    	Timeout for command (default 10s)

Anything after the flags is the command to execute on requesting pattern. A typical invocation looks like this:

$ ./commandd -addr=":8080" -timeout="2s" echo -n foo bar baz

$ curl http://localhost:8080/run
foo bar baz

Docker

Running in Docker is easy. First, build an image.

docker build -t some-tag .

To run a container from the freshly built image:

docker run -p 8080:8080 --rm -t some-tag

The -p flag publishes the container's port to the host.