Autarchy of the Private Cave

Tiny bits of bioinformatics, [web-]programming etc

    • Archives

    • Recent comments

    Archive for February 10th, 2016

    How to fix: mod_proxy’s ProxyPass directive does not work

    10th February 2016

    So… You had finally built a nice LXC container for your web-facing application, and even configured Apache (Debian package version 2.14.18-1 in my case) to serve some static/web-only components.
    From your client-side JavaScript UI you talk (in JSON) to the API, which is implemented as a separate node.js/Python/etc server – say, on port 8000 in the same LXC container.

    The simplest solution to forward requests from the web-frontend to your API is by using mod_proxy.
    If you want to forward any requests to /api/* to your custom back-end server on port 8000, you just add the following lines to your VirtualHost configuration:

    ProxyPass “/api” “http://localhost:8000″
    ProxyPassReverse “/api” “http://localhost:8000″

    I’d suggest not wrapping this fragment with the classical IfModule: as your application will not really work without its API back-end, you actually want Apache to fail as soon as possible if mod_proxy is missing.

    That was easy, right? What, it doesn’t work? Can’t be! It’s dead simple! No way you could make a mistake in 2 lines of configuration!!! :mad_rage: :)

    Oh wait… I remember I had this problem before… Read the rest of this entry »

    Share

    Posted in *nix, how-to, Web | No Comments »