ERPNext Amazon S3 Backup settings

Integration
1

We are trying to configure amazon_S3_backup settings to take periodic backup of ERPNext instance. We have followed the below steps to install amazon_s3_backup…

Install boto and filechunkio packages
a) source ./frappe-bench/env/bin/activate
b) pip install boto
c) pip install filechunkio

bench get-app s3_backup https://github.com/ccfiel/s3_backup.git

bench --site install-app s3_backup

After installation new link available under Setup > Integrations > Amazon S3 Backup
But while trying the save the configuration settings its giving the below error…can someone please advise or suggest a solution to this issue…really appreciate an early response.

Traceback (most recent call last):
File “/home/frappe/frappe-bench/apps/frappe/frappe/desk/form/save.py”, line 22, in savedocs
doc.save()
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 259, in save
return self.save(*args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 293, in save
self.run_before_save_methods()
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 861, in run_before_save_methods
self.run_method(“validate”)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 757, in run_method
out = Document.hook(fn)(self, *args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 1026, in composer
return composed(self, method, *args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 1009, in runner
add_to_return_value(self, fn(self, *args, **kwargs))
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 751, in
fn = lambda self, *args, **kwargs: getattr(self, method)(*args, **kwargs)
File “/home/frappe/frappe-bench/apps/s3_backup/s3_backup/amazon_s3_backup/doctype/amazon_s3_settings/amazon_s3_settings.py”, line 29, in validate
frappe.throw(("Unable to create bucket {0}. Change it to a more unique ").format(bucket_lower))
NameError: global name ‘_’ is not defined

2

try with this edit
bench --site erpnext install-app s3_backup

3

Thanks for your reply…
it worked after I change the AWS User permission policy…
earlier I was using a custom policy…

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:ListAllMyBuckets",
                "s3:PutObject",
                "s3:GetObject"
            ],
            "Resource": [
                "arn:aws:s3:::*"
            ]
        }
    ]
}

changed it to amazon standard permission of AmazonS3FullAccess

its having following permission…

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "s3:*",
            "Resource": "*"
        }
    ]
}
2 Likes
4

thanks… will keep it for my team as well.

6
  1. do you mean the “Bucket Policy” in the “Permissions” tab inside of the bucket?
  2. it’s the 2nd code example in your post which is the one that works for you?

I am getting a …

Missing required field Principal

… error when pasting this 1:1 into the “Bucket Policy” field

8

while trying to figure out the s3 bucket policy, all of a sudden (without having changed or added to the policy yet) I see a backup showing in my bucket. So it is solved for me without me knowing why. I’m curious if this continous to work

P.S. I am on v11 where s3 backup is built in