[R-sig-Geo] terra/GDAL error reading file from http inside docker container

[Mathias Moser]

Could be a certificate issue, have you tried replacing https with http in your
link? Or, alternatively set,

> library(terra)
> setGDALconfig("GDAL_HTTP_UNSAFESSL", "YES")

If that does not help, you could start debugging by enabling verbose curl
logging,

> setGDALconfig("CPL_CURL_VERBOSE", "YES")


A list of other possible options is here [1]. setGDALconfig is however not
available in the 1.5.21 version you are using, you need to install dev version
first,

> devtools::install_github("rspatial/terra")

Best wishes,

Mathias

[1] https://trac.osgeo.org/gdal/wiki/ConfigOptions


On Mon, 2022-05-30 at 16:50 +1000, Roozbeh Valavi wrote:
> Hi all,
> 
> I try to read raster files using a URL from within a docker container.
> I can easily read the same file with terra package from my system (both
> Windows and Ubuntu), but when try reading the same file within a docker
> container it runs to an error.
> 
> *The  R code for reading the raster file hosted on a public AWS S3 bucket.*
> 
> terra::rast("
> https://s3-ap-southeast-2.amazonaws.com/silo-open-data/daily/max_temp/2018/20180103.max_temp.tif
> ")
> 
> *Error:*
> Error: [rast] cannot open file:
> https://s3-ap-southeast-2.amazonaws.com/silo-open-data/daily/max_temp/2018/20180103.max_temp.tif
> In addition: Warning message:
> An error occurred while creating a virtual connection to the DAP
> server:Error while reading the URL:
> https://s3-ap-southeast-2.amazonaws.com/silo-open-data/daily/max_temp/2018/20180103.max_temp.tif.ver
> .
> The OPeNDAP server returned the following message:
> Not Found: The data source or server could not be found.
>         Often this means that the OPeNDAP server is missing or needs
> attention.
>         Please contact the server administrator. (GDAL error 1)
> 
> 
> *System info of docker container:*
> R version 4.2.0
> GDAL 3.0.4
> terra 1.5.21
> DISTRIB_ID=Ubuntu
> DISTRIB_RELEASE=20.04
> DISTRIB_CODENAME=focal
> DISTRIB_DESCRIPTION="Ubuntu 20.04.4 LTS"
> 
> * libgdal-dev* is installed in the docker container.
> 
> *System info of my local system:*
> R version 4.2.0
> GDAL 3.3.2
> terra 1.5.21
> DISTRIB_ID=Ubuntu
> DISTRIB_RELEASE=20.04
> DISTRIB_CODENAME=focal
> DISTRIB_DESCRIPTION="Ubuntu 20.04.4 LTS"
> 
> I appreciate any help.
> 
> Kind regards,
> Roozbeh
> 
> Roozbeh Valavi
> The Quantitative & Applied Ecology Group <http://qaeco.com/>
> School of Ecosystem and Forest Sciences,
> The University of Melbourne, VIC 3010, Australia
> *Mobile*: +61 423 283 238 | *Twitter*: @ValaviRoozbeh |
> *Researchgate <https://www.researchgate.net/profile/Roozbeh_Valavi>*
> 
>         [[alternative HTML version deleted]]
> 
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