ownCloud on OpenShift <http://blog.iandexter.net/2013/08/owncloud-on-openshift.html>

autoconfig.php

<?php
    define("DIRECTORY",$_SERVER['OPENSHIFT_DATA_DIR'] );
    define("DBNAME",$_SERVER['OPENSHIFT_APP_NAME'] );
    define("DBUSER",$_SERVER['OPENSHIFT_MYSQL_DB_USERNAME'] );
    define("DBPASS",$_SERVER['OPENSHIFT_MYSQL_DB_PASSWORD'] );
    define("DBHOST",$_SERVER['OPENSHIFT_MYSQL_DB_HOST'] . ':' . $_SERVER['OPENSHIFT_MYSQL_DB_PORT'] );
    $AUTOCONFIG = array(
        'installed' => false,
        'dbtype' => 'mysql',
        'dbtableprefix' => 'oc_',
        'adminlogin' => 'admin',
        'adminpass' => 'OpenShiftAdmin',
        'directory' => DIRECTORY,
        'dbname' => DBNAME,
        'dbuser' => DBUSER,
        'dbpass' => DBPASS,
        'dbhost' => DBHOST
    );
?>

owncloud.sh

#!/bin/bash

if [[ -f  $OPENSHIFT_REPO_DIR/php/cron.php ]] ; then
    if [[ $(( $(date +%M) % 15 )) -eq 0 ]] ; then
        printf "{\"app\":\"Cron\",\"message\":\"%s\",\"level\":1,\"time\":%s}\n" "Running cron job" $(date +%s) >> $OPENSHIFT_DATA_DIR/owncloud.log
        pushd $OPENSHIFT_REPO_DIR/php &> /dev/null
        php -f cron.php
        if [[ $? -ne 0 ]] ; then
            printf "{\"app\":\"Cron\",\"message\":\"%s\",\"level\":2,\"time\":%s}\n" "Error running cron job" $(date +%s) >> $OPENSHIFT_DATA_DIR/owncloud.log
        fi
        popd &> /dev/null
    fi
fi