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Caution
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Setup Amazon S3¶
Create a bucket¶
Go to Amazon S3 and create a new bucket in a region where Scylla nodes are. If your cluster is deployed in multiple regions create a bucket per region. You may decide to backup only a single datacenter to save on costs, in that case create only one bucket in a region you want to backup.
Grant access¶
This procedure is required so that Scylla Manager can access your bucket.
Choose how you want to configure access to the bucket. You can use an IAM role (recommended) or you can add your credentials to the agent configuration file. The latter method is less secure as you will be propagating each node with this security information and in cases where you need to change the key, you will have to replace it on each node.
IAM role¶
Procedure
Create an IAM role for the S3 bucket which adheres to your company security policy.
Attach the IAM role to each EC2 instance (node) in the cluster.
Sample IAM policy for scylla-manager-backup bucket:
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:GetBucketLocation",
"s3:ListBucket",
"s3:ListBucketMultipartUploads"
],
"Resource": [
"arn:aws:s3:::scylla-manager-backup"
]
},
{
"Effect": "Allow",
"Action": [
"s3:PutObject",
"s3:GetObject",
"s3:DeleteObject",
"s3:AbortMultipartUpload",
"s3:ListMultipartUploadParts"
],
"Resource": [
"arn:aws:s3:::scylla-manager-backup/*"
]
}
]
}
Config file¶
Note that this procedure needs to be repeated for each Scylla node.
Procedure
Edit the /etc/scylla-manager-agent/scylla-manager-agent.yaml
Uncomment the
s3:line, for parameters note the two spaces in front, it’s a yaml file.Uncomment and set
access_key_idandsecret_access_key.If the S3 bucket is not running in the same region as the AWS EC2 instance uncomment and set the
regionto the S3 bucket’s region.Validate that the manager has access to the backup location. If there is no response, the S3 bucket is accessible. If not, you will see an error.
scylla-manager-agent check-location --location s3:<your S3 bucket name>
Restart Scylla Manager Agent service.
sudo systemctl restart scylla-manager-agent
Additional features¶
You can enable additional Amazon S3 features such as server side encryption or transfer acceleration.
Those need to be enabled on per Agent basis in the configuration file.
Check out the s3 section in Scylla Manager Agent Config file.
Troubleshoot connectivity¶
To troubleshoot Scylla node to bucket connectivity issues you can run:
scylla-manager-agent check-location --debug --location s3:<your S3 bucket name>