Using SAS PROC S3 to access a bucket using CEPH

[alisio_meneses]

Hello There!

I'm having trouble connecting to a CEPH object storage service using PROC S3 in SAS Viya 3.5 on Linux. CEPH is an open-source distributed storage system capable of providing S3 compatible buckets. I've tried setting a custom region using the TKS3_CUSTOM_REGION environment variable and a config file with access credentials, but I keep getting an error saying "The AWS access key Id you provided does not exist in our records." Here's my code:

options set=TKS3_CUSTOM_REGION="us-east-1,storage.yada.yada,0,0,TRUE,TRUE";
%let myvar_value = %sysget(TKS3_CUSTOM_REGION);
%put &myvar_value;

PROC S3 
	config="/home/user/tks3.cfg";
	LIST "/";
RUN;

The S3 "/home/user/tks3.cfg" file contains the following:

region=us-east-1
keyID = thisIsAnAwesomeKeyID
secret = whoaThisSecretIsSafe

Output Log:

1    %studio_hide_wrapper;
83   options set=TKS3_CUSTOM_REGION="us-east-1,storage.yada.yada,0,0,TRUE,TRUE";
84   %let myvar_value = %sysget(TKS3_CUSTOM_REGION);
85   %put &myvar_value;
us-east-1,storage.yada.yada,0,0,TRUE,TRUE
86   
87   PROC S3
88   config="/home/user/tks3.cfg";
91   LIST "/";
92   RUN;
ERROR: Could not get user buckets.
ERROR: The AWS access key Id you provided does not exist in our records.
ERROR: The AWS access key Id you provided does not exist in our records.
NOTE: The SAS System stopped processing this step because of errors.
NOTE: PROCEDURE S3 used (Total process time):
      real time           0.58 seconds
      cpu time            0.02 seconds
      
93   
94   %studio_hide_wrapper;
105  
106  

Currently I am able to interact with data from the CEPH bucket using the command-line tool for managing Amazon S3 storage, s3cmd, the same way I use it to interact with AWS S3 buckets. I guess this rules out problems caused by the CEPH service.

Can someone point what might be wrong?  

Thank you.

Environment info:

SAS Viya 3.5 running on Linux