Waits for an http 200.
Usage : docker run runo/wait-for-200 "http://someurl" --timeout=30
This command will issue http requests to the url "http://someurl" until an http 200 is received or 30s elapsed since the beginning of the command. The interval between each attempt is 100ms.
The docker image is available on docker hub : https://hub.docker.com/r/runo/wait-for-200/