[GH-ISSUE #2072] S3FS | Unable to Mount S3 using IAM Assume Role #1048

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opened 2026-03-04 01:50:57 +03:00 by kerem · 1 comment

kerem commented

2026-03-04 01:50:57 +03:00

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Originally created by @subba5678 on GitHub (Dec 1, 2022).
Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/2072

Hi Team,

We created a Trust relationship and Assume IAM Role for a User, With Assume rule we are unable to mount S3 as a local filesystem, however with Assume role we are able to perform API actions (aws ls , aws scp,aws sync)

Used below Command to mount

s3fs S3Bucket Name /newmount/ -o passwd_file=PATH -o dbglevel=info -f -o curldbg

s3fs S3Bucket Name /newmount/ -o passwd_file=PATH aws_role=ABC -o dbglevel=info -f -o curldbg

s3fs S3Bucket Name /newmount/ -o passwd_file=PATH aws_role=ABC,url=https://s3-us-west-2.amazonaws.com/S3Bucket Name/ -o dbglevel=info -f -o curldbg

s3fs S3Bucket Name /newmount/ -o profile=NAME -o dbglevel=info -f -o curldbg

s3fs S3Bucket Name /newmount/ -o profile=NAME iam_role=arn:aws:iam::AAAAA:role/ABC -o dbglevel=info -f -o curldbg

s3fs S3Bucket Name /newmount/ -o passwd_file=PATH aws_role=ABC,url=https://s3-us-west-2.amazonaws.com/S3Bucket Name/ -o use_path_request_style -o endpoint=us-west-2 -o dbglevel=info -f -o curldbg

S3FS Version : 1.91

ERRORS

[CRT] s3fs.cpp:s3fs_check_service(3587): invalid credentials(host=https://s3-us-west-2.amazonaws.com/ACV) - result of checking service.
2022-12-01T18:57:00.667Z [ERR] s3fs.cpp:s3fs_exit_fuseloop(3383): Exiting FUSE event loop due to errors

2022-12-01T18:57:00.676Z [INF] s3fs.cpp:s3fs_destroy(3437): destro

Originally created by @subba5678 on GitHub (Dec 1, 2022). Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/2072 Hi Team, We created a Trust relationship and Assume IAM Role for a User, With Assume rule we are unable to mount S3 as a local filesystem, however with Assume role we are able to perform API actions (aws ls , aws scp,aws sync) **Used below Command to mount** s3fs S3Bucket Name /newmount/ -o passwd_file=PATH -o dbglevel=info -f -o curldbg s3fs S3Bucket Name /newmount/ -o passwd_file=PATH aws_role=ABC -o dbglevel=info -f -o curldbg s3fs S3Bucket Name /newmount/ -o passwd_file=PATH aws_role=ABC,url=https://s3-us-west-2.amazonaws.com/S3Bucket Name/ -o dbglevel=info -f -o curldbg s3fs S3Bucket Name /newmount/ -o profile=NAME -o dbglevel=info -f -o curldbg s3fs S3Bucket Name /newmount/ -o profile=NAME iam_role=arn:aws:iam::AAAAA:role/ABC -o dbglevel=info -f -o curldbg s3fs S3Bucket Name /newmount/ -o passwd_file=PATH aws_role=ABC,url=https://s3-us-west-2.amazonaws.com/S3Bucket Name/ -o use_path_request_style -o endpoint=us-west-2 -o dbglevel=info -f -o curldbg S3FS Version : 1.91 ERRORS [CRT] s3fs.cpp:s3fs_check_service(3587): invalid credentials(host=https://s3-us-west-2.amazonaws.com/ACV) - result of checking service. 2022-12-01T18:57:00.667Z [ERR] s3fs.cpp:s3fs_exit_fuseloop(3383): Exiting FUSE event loop due to errors 2022-12-01T18:57:00.676Z [INF] s3fs.cpp:s3fs_destroy(3437): destro

kerem commented

2026-03-04 01:50:58 +03:00

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@ggtakec commented on GitHub (Jan 15, 2023):

@subba5678
Please let me know what version of s3fs you are using.
Also, run it with dbglevel=info or curldbg as a startup option and let us know the log.
If you can, try it with the latest code on the master branch as well.
Thanks in advance for your help.

@ggtakec commented on GitHub (Jan 15, 2023): @subba5678 Please let me know what version of s3fs you are using. Also, run it with `dbglevel=info` or `curldbg` as a startup option and let us know the log. If you can, try it with the latest code on the master branch as well. Thanks in advance for your help.