Using OpenIG as a regular ReverseProxy similar to NGINX or Apache

[Fehmi M’Barek]

Hi @ all,

is there a possibilty to use OpenIG as a Reverse Proxy similar to NGINX or Apache in order to manage different WebSite on different Hosts? (On NGINX they call it “Server Blocks”)

It would be very helpful if you would help me out with the router configuration (config.json) and also the different routes.

Thanks in advanced.

[Guillaume Sauthier]

Yes you can handle request targeting different hosts with OpenIG.

Part of the configuration depends on your DNS settings (that maps openig.example.com, www.acme.com, to the IP where your web container hosting OpenIG runs).

The other part depends on your routes configuration, you have to check in the condition that the incoming request has the hostname you want:

{
  "condition": "${request.uri.host == 'www.acme.com' and ...}"
}

You don’t need any config.json to make that work, just provide a route JSON configuration in your ${openig.base}/config/routes/ directory.

[Fehmi M’Barek]

Hi Guillaume,

first of all, thank you for the prompt reply.

Do this listing look like a wright Route?

{
    "heap": {
        "objects": [
            {
                "name": "myHandler",
                "type": "ClientHandler",
                "config": {
			"baseURI": "http://1.1.1.1:8080"
		}
            }
        ]
    },
    "handler": "myHandler",
    "condition": "${request.uri.host, == 'www.acme.com')}"
}

Thanks in advanced

[Guillaume Sauthier]

baseURI should be a top level attribute, next to condition
Otherwise, that LGTM

[Laurent Vaills]

By the way, be careful : there is also typo in your condition : a comma after the host.

So here is the configuration, with the Guillaume’s advice (baseURI is a decorator, not a raw config of ClientHandler) :

{
    "heap": {
        "objects": [
            {
                "name": "myHandler",
                "type": "ClientHandler",
                "baseURI": "http://1.1.1.1:8080"
            }
        ]
    },
    "handler": "myHandler",
    "condition": "${request.uri.host == 'www.acme.com')}"
}

• This reply was modified 5 years, 9 months ago by Laurent Vaills.
• This reply was modified 5 years, 9 months ago by Laurent Vaills.

[Fehmi M’Barek]

thanks a lot Laurent

[Kabi Patt]

Hi
I am new to OpenIG. Few questions on the configuration mentioned above.

(1) “baseURI”: “http://1.1.1.1:8080” :- Is this the IP where the target app “www.acme.com” is hosted ?
(2) When to use config.json file vs “../routes/xxx.json” . Can the config.json file be empty ?

Thanks,
Kabi

• This reply was modified 5 years, 8 months ago by Kabi Patt.

[Fehmi M’Barek]

Hi Kabi,

(1) yes.
(2) It is not necessary to have a config.json in /home/user/.openig/config. If you don’t create one, the a default configuration will be load. In my environment I am not using a config.json. I have only routes in /home/user/.openig/config/routes

best regards,
Fehmi

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