<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Right, thanks Even.</div>
<div> </div>
<div>I was generally aware of the issue and had added SYS_PTRACE capability to my docker service. That made the HDF5 driver work with /vsicurl/ in the container, but not the NetCDF driver, which did confuse me.</div>
<div> </div>
<div>Now, instead of running a container with --security_opt=seccomp:unconfined, i whitelisted userfaultfd in the seccomp profile for the docker deamon. That way I can use the netcdf driver in docker swarm services (where I was not able to make the security_opt work) and do not have to remove the secure computing mode entirely (I hope).</div>
<div> </div>
<div>Thanks again for your steady and swift replies!</div>
<div> </div>
<div>Cheers</div>
<div>Stefan</div>
<div> </div>
<div>
<div>
<div name="quote" style="margin:10px 5px 5px 10px; padding: 10px 0 10px 10px; border-left:2px solid #C3D9E5; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="margin:0 0 10px 0;"><b>Gesendet:</b> Donnerstag, 12. Oktober 2023 um 14:22 Uhr<br/>
<b>Von:</b> "Even Rouault" <even.rouault@spatialys.com><br/>
<b>An:</b> "Stefan Blumentrath" <Stefan.Blumentrath@gmx.de>, "gdal-dev" <gdal-dev@lists.osgeo.org><br/>
<b>Betreff:</b> Re: [gdal-dev] Cannot choose netCDF driver instead of HDF5 for nc files</div>
<div name="quoted-content">
<p>Works for me with GDAL 3.6, 3.7 and master on Ubuntu 20.04</p>
<p>$ gdalinfo /vsicurl/<a class="moz-txt-link-freetext" href="https://nbstds.met.no/thredds/fileServer/NBS/S2B/2022/07/03/S2B_MSIL1C_20220703T112119_N0400_R037_T32VLN_20220703T121203.nc" target="_blank">https://nbstds.met.no/thredds/fileServer/NBS/S2B/2022/07/03/S2B_MSIL1C_20220703T112119_N0400_R037_T32VLN_20220703T121203.nc</a><br/>
Driver: netCDF/Network Common Data Format<br/>
[...]</p>
<p>/vsicurl/ functionality for the netCDF driver requires using a specific system call of Linux. See <a class="moz-txt-link-freetext" href="https://gdal.org/drivers/raster/netcdf.html#vsi-virtual-file-system-api-support" target="_blank">https://gdal.org/drivers/raster/netcdf.html#vsi-virtual-file-system-api-support</a></p>
<div class="moz-cite-prefix">Le 12/10/2023 à 14:01, Stefan Blumentrath via gdal-dev a écrit :</div>
<blockquote>
<div style="font-family: Verdana;font-size: 12.0px;">
<div>Hi,</div>
<div> </div>
<div>I am wondering if the behavior of the NetCDF driver changed in recent GDAL version(s)?</div>
<div> </div>
<div>I do have the netCDF driver installed and also HDF5, which has been shaddowing the netCDF driver. So I used to do the following:</div>
<div>export GDAL_SKIP=HDF5</div>
<div>gdalinfo /vsicurl/<a class="moz-txt-link-freetext" href="https://nbstds.met.no/thredds/fileServer/NBS/S2B/2022/07/03/S2B_MSIL1C_20220703T112119_N0400_R037_T32VLN_20220703T121203.nc" target="_blank">https://nbstds.met.no/thredds/fileServer/NBS/S2B/2022/07/03/S2B_MSIL1C_20220703T112119_N0400_R037_T32VLN_20220703T121203.nc</a></div>
<div>But this gives me now:</div>
<div>ERROR 4: `/vsicurl/<a class="moz-txt-link-freetext" href="https://nbstds.met.no/thredds/fileServer/NBS/S2B/2022/07/03/S2B_MSIL1C_20220703T112119_N0400_R037_T32VLN_20220703T121203.nc" target="_blank">https://nbstds.met.no/thredds/fileServer/NBS/S2B/2022/07/03/S2B_MSIL1C_20220703T112119_N0400_R037_T32VLN_20220703T121203.nc</a>' not recognized as a supported file format.</div>
<div> </div>
<div>(or in Python syntax:</div>
<div>from osgeo import gdal</div>
<div>gdal.GetDriverByName("HDF5").Deregister()</div>
<div>ds = gdal.Open("/vsicurl/<a class="moz-txt-link-freetext" href="https://nbstds.met.no/thredds/fileServer/NBS/S2B/2022/07/03/S2B_MSIL1C_20220703T112119_N0400_R037_T32VLN_20220703T121203.nc" target="_blank">https://nbstds.met.no/thredds/fileServer/NBS/S2B/2022/07/03/S2B_MSIL1C_20220703T112119_N0400_R037_T32VLN_20220703T121203.nc</a>")</div>
<div>)</div>
<div> </div>
<div>If I do not deregister the HDF5 driver the dataset is opened, but with the HDF5 driver, and I want to use the netCDF driver for those CF-convention files...</div>
<div> </div>
<div>I am on Ubuntu 22.04, GDAL 3.6.4, released 2023/04/17...</div>
<div> </div>
<div>Any idea how that can be solved? Is it a bug or a feature?</div>
<div>Thanks for helping in advance!</div>
<div> </div>
<div>Cheers</div>
<div>Stefan</div>
</div>
<fieldset class="moz-mime-attachment-header"> </fieldset>
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My software is free, but my time generally not.</pre>
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