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SDC_TTG_Liverpool_DIVAnd.html
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Online DIVAnd</title>
<meta name="description" content="Spatial data interpolation">
<meta name="author" content="Charles Troupin">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui">
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<style type="text/css">
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box-shadow: 0 0 15px rgba(0,0,0,0.4); border-radius: 7px; }
.info h4 { margin: 0 0 5px; color: #777; font: 20px/22px Arial, Helvetica, sans-serif;}
.legend { text-align: left; line-height: 18px; color: #555; font: 20px/22px Arial, Helvetica, sans-serif;}
.legend i { width: 18px; height: 18px; float: left; margin-right: 8px; opacity: 0.7; }
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width: 10px;
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color: red
}
</style>
<!-- Printing and PDF exports -->
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</head>
<body>
<div class="reveal">
<div class="slides">
<section>
<section class="center">
<h1>Online DIVAnd</h1>
<h2>Recent progress & hurdles</h2>
<p>
<img src="images/logo_gher.png" height="75px"/>
<img src="images/logo_uliege.jpeg" height="75px"/>
<img src="images/logo_emodnet.png" height="75px"/>
<img src="images/logo_seadatacloud.png" height="75px"/></p>
</section>
<section class="center" style="text-align: left;">
<h2>A work by</h2>
<p>Alexander <font style="font-variant: small-caps">Barth</font> (code development and data interpolation)</p>
<p>Jean-Marie <font style="font-variant: small-caps">Beckers</font> (code development)</p>
<p>Charles <font style="font-variant: small-caps">Troupin</font> (data interpolation and visualisation) and</p>
<p>the VRE team</p>
<p>
<img src="images/alexander-barth.jpeg" height="150px"/>
<img src="images/jeanmarie-beckers.jpeg" height="150px"/>
<img src="images/ctroupin.JPG" height="150px"/></p>
</section>
</section>
</section>
<section>
<section class="center">
<h1>1. How do we perform data interpolation?</h1>
</section>
<section data-background-iframe="maps/BalticSalinity.html" data-background-interactive>
</section>
<section>
<video data-autoplay src="images/DIVAnd-REST-VRE-GUI.mp4" width="600px"></video>
</section>
<section>
<h2>Deployment in the VRE</h2>
<ul>
<li><a href="https://jupyter.org/hub">Jupyter-hub</a> to manage multiple users</li>
<li><a href="https://www.docker.com/">Docker</a> container for the deployment</li>
<li>Management/orchestration using <a href="https://kubernetes.io">Kubernetes</a></li>
</ul>
<br>
<img src="images/SDC_TTG/hub_logo.png" height="150px"/>
<img src="images/SDC_TTG/docker_logo.png" height="150px"/>
<img src="images/SDC_TTG/kubernetes_logo.jpg" height="150px"/>
</section>
<section>
<h2>DIVAnd REST API</h2>
<pre class="bash"><code data-trim data-noescape>
docker pull abarth/divand_rest
docker run --detach --name=divand_rest_container -it -p 8002:8002 abarth/divand_rest
</code></pre>
<p style="text-align: left;">
<a href="http://localhost:8002/">http://localhost:8002/</a> in the web browser
</p>
</section>
</section>
</section>
<section>
<section class="center">
<h1>2. VRE developments </h1>
</section>
<section class="center">
<h2>Liège VRE code sprint (February 4-6, 2019)</h2>
<img src="images/SDC_TTG/GCAN9542.JPG" width="80%"/>
</section>
<section style="text-align: left;">
<h2>We are we heading?</h2>
Concentrate Mikael's time<br>
on the integration of the jupyter-notebook interface<br>
for multiple-user
</section>
<section style="text-align: left;">
<h2>Current status of the component?</h2>
<p> <i class="fas fa-battery-full"></i> DIVAnd running in isolation</p>
<p> <i class="fas fa-battery-full"></i> DIVAnd Jupter-hub container</p>
<p> <i class="fas fa-battery-full"></i> DIVAnd API and file selector</p>
<p> <i class="fas fa-battery-quarter"></i> Integration with other VRE components: 20%<br>
(difficult to estimate)</p>
</section>
<section style="text-align: left;">
<h2>Open issues</h2>
<ol>
<li> Passing user-credentials (B2DROP username, password, WebDAV URL) to the container</li>
<li> Single-sign-on approach to access the individual services<br> (now hard-coded)</li>
<li> B2DROP handling ~20 users downloading/uploading a file? <br>
"<i>B2DROP is not for development and testing</i>"</li>
<li> Implementing the WebDAV put and get requests in the container</li>
<li> Updating the file selector for the GUI interface of DIVAnd</li>
<li> Testing that the VRE dashboard can start containers</li>
</ol>
</section>
<section style="text-align: left;">
<h2>Open issues: how to tackle?</h2>
<p> WebDAV put and get requests<br> → Alex </p>
<p>File selector for the GUI interface of DIVAnd <br> → in collaboration with Sebastian</li>
</p>
<p><b>Others:</b> dependent on EUDAT for the integration</p>
</section>
<section>
<h2>DIVAnd API and file selector</h2>
<img src="images/SDC_TTG/divaAPI_fileselector.png" width="60%"/>
</section>
<section>
<h2>File upload/download using WebDAV</h2>
<p style="text-align: left;">Configure WebDAV environment variables</p>
<pre class="julia"><code data-trim data-noescape>
ENV["WEBDAV_USERNAME"] = "app-username"
ENV["WEBDAV_PASSWORD"] = "app-password"
ENV["WEBDAV_URL"] = "https://b2drop.eudat.eu/remote.php/webdav"
</code></pre>
<p style="text-align: left;">Download the file to the selected folder</p>
<pre class="julia"><code data-trim data-noescape>
get("Adriatic/AdriaticSea_SDC.txt", "Adriatic/AdriaticSea_SDC.txt")
</code></pre>
 
<p style="text-align: left;"> WEBDAV_USERNAME<br> WEBDAV_PASSWORD<br> WEBDAV_URL should be set by kubernetes (not by the user)</p>
</section>
<section>
<h2>Demo</h2>
<a href="https://diva.seadatacloud.ml/1234/tree">https://diva.seadatacloud.ml/1234/tree</a>
</section>
</section>
<section>
<section class="center" data-background="EMODnet-Bio/Lisboa2015_9054.jpg">
<h1> Thanks for your attention </h1>
</section>
</section>
</div>
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