Latest Contributions by MatthewLevey

Hi Nils, My post is a bit dated and we have since moved on to an open-source solution. Both steps 1 and 2 are both fully explained in the Esri online documentation for ArcGIS Pro and ArcGIS Enterprise for Linux. To summarize though: on your desktop you will clone the default arcgispro-py3 environment using that option under the Python menu in ArcGIS Pro. Install your needed Python libraries to that newly cloned environment. Then on your Linux machine, you will create a new Python virtual environment using whatever method you wish. I used Conda. Add the Esri channel (similar to how one adds conda-forge - see the docs) and then install arcgis-server-py3. Perhaps obvious, but you must have ArcGIS Server or Enterprise installed and licensed on that Linux machine. Then add the Python libraries you need to that environment and point that environment in your scripts as above. I hope this helps but again, the Esri documentation should get you through those two steps. I wish you good success, Matt ... View more

I fully agree and feel that technical support parity could be taken even a step further. Far too often when requesting technical support for an issue with our ArcGIS Enterprise deployment on Linux, the analyst says something like, "I am not a Linux person but I will try to help you". I too often feel that Linux is not truly supported but rather offered as a courtesy to those who can't or won't run Windows. ... View more

Hi Jon, Thank you for your reply. I really don't understand the logic of not supporting Python 3 geoprocessing on Server for Linux while at the same time pushing us toward using ArcGIS Pro, which uses Python 3. ArcMap is not being updated and Python 2.7 development was discontinued over a year ago and the libraries we need have moved on. This leaves those of us using Linux without a solution and from the number of views for this post, there are many of us. I am aware of using Python 3 from the command line. That is a solution for a different problem. If I am going to have to ask my users to utilize the command line I will just create a Flask app and bypass Server altogether. Perhaps we don't even need ArcGIS Enterprise at all? This situation has left me very disgruntled. Despite the phrase in your signature I can't keep on keeping on, I am dead in the water! ... View more

To answer my own question, this is how we resolved the problem of hosting web pages and running web adaptor on the same Linux machine, in our case Red Hat Enterprise Linux 7.6:     It turns out that Tomcat can be configured as a reverse-proxy server using a servlet. I installed HTTPProxyServlet from http://www.servletsuite.com/servlets/httpproxy.htm and configured it to forward requests with '/apps' in the URL to Apache httpd. There are other more up-to-date servlets out there but this one was simple to configure and use.  The Servlet (described above) matches a url path string (e.g. /apps), deletes it and everything after it, and forwards it to the web-server (httpd aka Apache) at http://yourserver.domain:port. Note it is not using SSL and in this case is listening to port 8080 (via a Virtual Host/Server). Port 8080 is blocked from external IP addresses for security. A ReWriteRule was added to httpd's Directives file (/etc/httpd/conf/httpd.conf) that adds the removed paths and whatever string was in the original url after them. So the final url looks like: '_/path1/path2/SomeStringHere' to follow the file system path to the web app content. Removing and replacing strings is necessary because the proxy is not dynamic; it only forwards to one endpoint. This workflow makes the requests dynamic. Currently it is necessary to have the trailing slash at the end of the string. If this '/' is missing any relative paths in the web app will be broken and the app will not load completely. IIS seems to do this automatically but I haven't figured out how to get httpd see the current directory as a root directory and load other content. Any suggestions on how to fix this would be appreciated. Hopefully this helps others who have a similar situation. Good luck! ... View more

Robert, Understood. Since your widget is so useful I will try to add the map services and hide them in the map, which WAB 2.1 layer list allows. Thank you for your time and your assistance, and of course for your widget. regards, Matt ... View more

I can confirm that both versions of the WAB and Identify widget are the same (2.1). This is an obvious oversight on my part but because I could not add Image Services to the Identify widget I tried using their matching Map Service url when configuring the Identify widget. Clearly the layers must be in the map to use them, rather than just be accessible through the REST endpoint. I changed the underlying Map to one with the map services and the Identify widget works. I apologize for not thinking of that sooner. So, I guess my issue now is whether the Identify widget works with Image Services, which according to the REST Services Directory shows that they do support Identify. I am unable to add the url (copied directly from the browser address bar) of an Image Service to the Identify widget configuration. Thank you. ... View more

I have tried adding the widget to a new app with no success. Previously I had deleted the entire WAB folder and unzipped it again fresh. I unzipped the updated Identify widget to the client folder. I then updated the app using the node.js commands. I get the same non-working results with Firefox as well - no request is sent when clicking on the map. thank you, Matt ... View more

Hi Robert, I upgraded WAB from 1.4 and the Identify widget from 1.3.0.1. There are no errors reported in the Chrome (vers. 52.0.2743.116 m) Dev Tools  console and no indication in the Network tab that a REST request is sent when clicking on the map with any combination of settings. Only the one non-time-enabled layer shows a REST request. This occurs running locally with Node.js as I have not tried to publish the new app yet. thank you, Matt ... View more