SPARQL Microservice behind proxy about sparql-micro-service HOT 4 CLOSED

Hi Lavdim,

Thx for your interest in this project.

Could you please let me know whether SPARQL Microservice works behind proxy, and what could be the fix?

I have honestly never tried it behind a proxy, although I don't see any reason why it would not work. The Flickr micro-service will simply issue a https query to Flickr's Web API, nothing more. Can you make sure port 443 is open on your proxy?

Also you may have a look at the log file, as the log directory is mounted on the docker host. See https://github.com/frmichel/sparql-micro-service/blob/master/doc/04-install.md#check-application-logs.

Let me know how it goes and we'll see from there.

In addition, if I would like to create a docker image with SPARQL Microservice installed in it, what is the entry command that should run on docker container initialization apart from starting Apache?

None. The only thing that needs to run is a properly configured Apache server. In addition to the running the Corese and MongoDB containers of course.
If you like, I can share with you the files and procedure I use to build the Docker image.

Franck.

from sparql-micro-service.

Hi Frank,

thank you for your quick response.

Actually, it seems that the proxy information should be given during the service call. So, according to this link: https://stackoverflow.com/questions/1336262/file-get-contents-behind-a-proxy , I added/changed the following code lines into the common/Utils.php file, now your docker container is working fine:

$PROXY_HOST = "proxyAdress"; // Proxy server address
$PROXY_PORT = 8080;// Proxy server port
$PROXY_USER = "username"; // Username
$PROXY_PASS = "pass"; // Password
// Username and Password are required only if your proxy server needs basic authentication

$auth = base64_encode("$PROXY_USER:$PROXY_PASS");

    // Build the list of HTTP headers
    $headers = array();
    $headers[] = "Accept: application/json; q=0.9, */*; q=0.1";
    $headers[] = "User-Agent: SPARQL-Micro-Service";
    $headers[] = "Proxy-Authorization: Basic $auth";

    if ($headers != null) {
        foreach ($additionalHeaders as $hName => $hVal)
            $headers[] = $hName . ": " . $hVal;
    }



    $streamContextOptions = array(
        'method' => 'GET',
        'header' => $headers,
         'proxy' => "tcp://$PROXY_HOST:$PROXY_PORT",
        'timeout' => Processor::REMOTE_TIMEOUT,
        'ssl' => [
            'verify_peer' => true,
            'verify_peer_name' => true,
    'allow_self_signed' => false
        ]
    )

The only thing that needs to run is a properly configured Apache server.

Is there anything else which is done for configuring Apache, since I see that in your docker there are a number of environment variables which are set and there exist a number of scripts into /usr/local/bin, such as docker-php-entrypoint, etc. Also, I see that docker-php-entrypoint is run on the initialization of the docker container.

If you like, I can share with you the files and procedure I use to build the Docker image.

Would be great if you can share the Docker build file.

Lavdim

from sparql-micro-service.

Indeed you are right! I had not thought about that use case but indeed, the proxy configuration has to be made explicit at some point. Thx for the code, I'll put this into the code asap and make it part of the main configuration file.

If you like, I can share with you the files and procedure I use to build the Docker image.
Would be great if you can share the Docker build file.

Ok sure. It's not public yet, can you send me your email address?
When would you like to have that, like asap or that can wait a few days? (I'm in the middle of a conference right now... quite dense! ;)).

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Implemented in 0.4.2_RC.

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