hadoop/hadoop-hdds/docs/content/S3.md

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---
title: S3
menu:
main:
parent: Client
weight: 1
---
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Ozone provides S3 compatible REST interface to use the object store data with any S3 compatible tools.
## Getting started
S3 Gateway is a separated component which provides the S3 compatible. It should be started additional to the regular Ozone components.
You can start a docker based cluster, including the S3 gateway from the release package.
Go to the `compose/ozones3` directory, and start the server:
```bash
docker-compose up -d
```
You can access the S3 gateway at `http://localhost:9878`
## URL Schema
Ozone S3 gateway supports both the virtual-host-style URL s3 bucket addresses (eg. http://bucketname.host:9878) and the path-style addresses (eg. http://host:9878/bucketname)
By default it uses the path-style addressing. To use virtual host style URLs set your main domain name in your `ozone-site.xml`:
```xml
<property>
<name>ozone.s3g.domain.name</name>
<value>s3g.internal</value>
</property>
```
## Bucket browser
Buckets could be browsed from the browser by adding `?browser=true` to the bucket URL.
For example the content of the 'testbucket' could be checked from the browser using the URL http://localhost:9878/testbucket?browser=true
## Implemented REST endpoints
Operations on S3Gateway service:
Endpoint | Status |
------------|-------------|
GET service | implemented |
Operations on Bucket:
Endpoint | Status | Notes
------------------------------------|-------------|---------------
GET Bucket (List Objects) Version 2 | implemented |
HEAD Bucket | implemented |
DELETE Bucket | implemented |
PUT Bucket (Create bucket) | implemented |
Delete Multiple Objects (POST) | implemented |
Operation on Objects:
Endpoint | Status | Notes
------------------------------------|-----------------|---------------
PUT Object | implemented |
GET Object | implemented | Range headers are not supported
Multipart Uplad | not implemented |
DELETE Object | implemented |
HEAD Object | implemented |
## Security
Security is not yet implemented, you can *use* any AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY
Note: Ozone has a notion for 'volumes' which is missing from the S3 Rest endpoint. Under the hood S3 bucket names are mapped to Ozone 'volume/bucket' locations (depending on the given authentication information).
To show the storage location of a S3 bucket, use the `ozone sh bucket path <bucketname>` command.
```
aws s3api --endpoint-url http://localhost:9878 create-bucket --bucket=bucket1
ozone sh bucket path bucket1
Volume name for S3Bucket is : s3thisisakey
Ozone FileSystem Uri is : o3fs://bucket1.s3thisisakey
```
## Clients
### AWS Cli
`aws` CLI could be used with specifying the custom REST endpoint.
```
aws s3api --endpoint http://localhost:9878 create-bucket --bucket buckettest
```
Or
```
aws s3 ls --endpoint http://localhost:9878 s3://buckettest
```
### S3 Fuse driver (goofys)
Goofys is a S3 FUSE driver. It could be used to mount any Ozone bucket as posix file system:
```
goofys --endpoint http://localhost:9878 bucket1 /mount/bucket1
```