RClone - Amazon S3

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Amazon S3

Setup

Paths are specified as remote:bucket (or remote: for the lsd command.) You may put subdirectories in too, eg remote:bucket/path/to/dir.

Here is an example of making an s3 configuration. First run: 

rclone config

This will guide you through an interactive setup process: 

No remotes found - make a new one
n) New remote
s) Set configuration password
n/s> n
name> remote
Type of storage to configure.
Choose a number from below, or type in your own value
 1 / Amazon Cloud Drive
   \ "amazon cloud drive"
 2 / Amazon S3 (also Dreamhost, Ceph)
   \ "s3"
 3 / Backblaze B2
   \ "b2"
 4 / Dropbox
   \ "dropbox"
 5 / Google Cloud Storage (this is not Google Drive)
   \ "google cloud storage"
 6 / Google Drive
   \ "drive"
 7 / Hubic
   \ "hubic"
 8 / Local Disk
   \ "local"
 9 / Microsoft OneDrive
   \ "onedrive"
10 / Openstack Swift (Rackspace Cloud Files, Memset Memstore, OVH)
   \ "swift"
11 / Yandex Disk
   \ "yandex"
Storage> 2
Get AWS credentials from runtime (environment variables or EC2 meta data if no env vars). Only applies if access_key_id and secret_access_key is blank.
Choose a number from below, or type in your own value
 1 / Enter AWS credentials in the next step
   \ "false"
 2 / Get AWS credentials from the environment (env vars or IAM)
   \ "true"
env_auth> 1
AWS Access Key ID - leave blank for anonymous access or runtime credentials.
access_key_id> access_key
AWS Secret Access Key (password) - leave blank for anonymous access or runtime credentials.
secret_access_key> secret_key
Region to connect to.
Choose a number from below, or type in your own value
   / The default endpoint - a good choice if you are unsure.
 1 | US Region, Northern Virginia or Pacific Northwest.
   | Leave location constraint empty.
   \ "us-east-1"
   / US West (Oregon) Region
 2 | Needs location constraint us-west-2.
   \ "us-west-2"
   / US West (Northern California) Region
 3 | Needs location constraint us-west-1.
   \ "us-west-1"
   / EU (Ireland) Region Region
 4 | Needs location constraint EU or eu-west-1.
   \ "eu-west-1"
   / EU (Frankfurt) Region
 5 | Needs location constraint eu-central-1.
   \ "eu-central-1"
   / Asia Pacific (Singapore) Region
 6 | Needs location constraint ap-southeast-1.
   \ "ap-southeast-1"
   / Asia Pacific (Sydney) Region
 7 | Needs location constraint ap-southeast-2.
   \ "ap-southeast-2"
   / Asia Pacific (Tokyo) Region
 8 | Needs location constraint ap-northeast-1.
   \ "ap-northeast-1"
   / South America (Sao Paulo) Region
 9 | Needs location constraint sa-east-1.
   \ "sa-east-1"
   / If using an S3 clone that only understands v2 signatures
10 | eg Ceph/Dreamhost
   | set this and make sure you set the endpoint.
   \ "other-v2-signature"
   / If using an S3 clone that understands v4 signatures set this
11 | and make sure you set the endpoint.
   \ "other-v4-signature"
region> 1
Endpoint for S3 API.
Leave blank if using AWS to use the default endpoint for the region.
Specify if using an S3 clone such as Ceph.
endpoint> 
Location constraint - must be set to match the Region. Used when creating buckets only.
Choose a number from below, or type in your own value
 1 / Empty for US Region, Northern Virginia or Pacific Northwest.
   \ ""
 2 / US West (Oregon) Region.
   \ "us-west-2"
 3 / US West (Northern California) Region.
   \ "us-west-1"
 4 / EU (Ireland) Region.
   \ "eu-west-1"
 5 / EU Region.
   \ "EU"
 6 / Asia Pacific (Singapore) Region.
   \ "ap-southeast-1"
 7 / Asia Pacific (Sydney) Region.
   \ "ap-southeast-2"
 8 / Asia Pacific (Tokyo) Region.
   \ "ap-northeast-1"
 9 / South America (Sao Paulo) Region.
   \ "sa-east-1"
location_constraint> 1
Remote config
--------------------
[remote]
env_auth = false
access_key_id = access_key
secret_access_key = secret_key
region = us-east-1
endpoint = 
location_constraint = 
--------------------
y) Yes this is OK
e) Edit this remote
d) Delete this remote
y/e/d> y

Usage

This remote is called remote and can now be used like this:

See all buckets 

rclone lsd remote:

Make a new bucket 

rclone mkdir remote:bucket

List the contents of a bucket 

rclone ls remote:bucket

Sync /home/local/directory to the remote bucket, deleting any excess files in the bucket. 

rclone sync /home/local/directory remote:bucket

Modified Time

The modified time is stored as metadata on the object as X-Amz-Meta-Mtime as floating point since the epoch accurate to 1 ns.

Multipart uploads

rclone supports multipart uploads with S3 which means that it can upload files bigger than 5GB. Note that files uploaded with multipart upload don’t have an MD5SUM.

Buckets and Regions

With Amazon S3 you can list buckets (rclone lsd) using any region, but you can only access the content of a bucket from the region it was created in. If you attempt to access a bucket from the wrong region, you will get an error, incorrect region, the bucket is not in 'XXX' region.

Authentication

There are two ways to supply rclone with a set of AWS credentials. In order of precedence:

  • Directly in the rclone configuration file (as configured by rclone config)
    • set access_key_id and secret_access_key
  • Runtime configuration:
    • set env_auth to true in the config file
    • Exporting the following environment variables before running rclone
      • Access Key ID: AWS_ACCESS_KEY_ID or AWS_ACCESS_KEY
      • Secret Access Key: AWS_SECRET_ACCESS_KEY or AWS_SECRET_KEY
    • Running rclone on an EC2 instance with an IAM role

If none of these option actually end up providing rclone with AWS credentials then S3 interaction will be non-authenticated (see below).

Anonymous access to public buckets

If you want to use rclone to access a public bucket, configure with a blank access_key_id and secret_access_key. Eg 

No remotes found - make a new one
n) New remote
q) Quit config
n/q> n
name> anons3
What type of source is it?
Choose a number from below
 1) amazon cloud drive
 2) b2
 3) drive
 4) dropbox
 5) google cloud storage
 6) swift
 7) hubic
 8) local
 9) onedrive
10) s3
11) yandex
type> 10
Get AWS credentials from runtime (environment variables or EC2 meta data if no env vars). Only applies if access_key_id and secret_access_key is blank.
Choose a number from below, or type in your own value
 * Enter AWS credentials in the next step
 1) false
 * Get AWS credentials from the environment (env vars or IAM)
 2) true
env_auth> 1
AWS Access Key ID - leave blank for anonymous access or runtime credentials.
access_key_id>
AWS Secret Access Key (password) - leave blank for anonymous access or runtime credentials.
secret_access_key>
...

Then use it as normal with the name of the public bucket, eg 

rclone lsd anons3:1000genomes

You will be able to list and copy data but not upload it.

Ceph

Ceph is an object storage system which presents an Amazon S3 interface.

To use rclone with ceph, you need to set the following parameters in the config. 

access_key_id = Whatever
secret_access_key = Whatever
endpoint = https://ceph.endpoint.goes.here/
region = other-v2-signature

Note also that Ceph sometimes puts / in the passwords it gives users. If you read the secret access key using the command line tools you will get a JSON blob with the / escaped as \/. Make sure you only write / in the secret access key.

Eg the dump from Ceph looks something like this (irrelevant keys removed). 

{
    "user_id": "xxx",
    "display_name": "xxxx",
    "keys": [
        {
            "user": "xxx",
            "access_key": "xxxxxx",
            "secret_key": "xxxxxx\/xxxx"
        }
    ],
}

Because this is a json dump, it is encoding the / as \/, so if you use the secret key as xxxxxx/xxxx it will work fine.

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