Make a bucket name compatible with the aws-s3 naming rule of US region

[mocchira]

To make it easy to replace S3 with LeoFS for users,
I think we need to adopt a more relax naming rule.

http://docs.aws.amazon.com/ja_jp/AmazonS3/latest/dev/BucketRestrictions.html

[yosukehara]

We need to write this spec in the manual.

[mocchira]

modify two things as follows.

• Max length is 255
• Able to use _ char in a bucket

[yosukehara]

it's OK.

[firejun]

I confirmed this issue.
So, I have a question.

I don't able to use numeric character only bucket name?
I try to add 255bytes numeric character only bucket.
But it failed as below command.

• LeoFS version is develop. (leo-project/leo_s3_libs@44ff47d used)

[Berow is numeric only(255bytes)]
add-bucket 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 47d0e9061169c47f3ddc
[ERROR] "Invalid bucket format"

[Berow is alphabet only(255bytes)]
add-bucket abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstu 47d0e9061169c47f3ddc
OK

[mocchira]

YES.
This spec will be published at the next stable version release day.

[firejun]

Thank you for your reply.
I understand this issue.

[yosukehara]

Reference: Bucket Restrictions and Limitations(En)

[yosukehara]

I've written "rules for bucket naming" in the manual - https://github.com/leo-project/leofs_docs/commit/d48fc90f28607f773a4ca8719627d6639ecff9f2
It will be published on the website after released LeoFS-v0.16.1 next week.