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Using Leafcloud Object Storage

Leafcloud Object storage is a flexible service meant for storing 'objects' such as files (images, documents, binaries), logs and many other types of objects. As Leafcloud is a managed service you don't have to worry about maintaining servers in order to benefit from this scalable service.

Object storage has a concept of containers (also called 'buckets'), these define a group of objects. A container can be set to private (the default) and public.

When a container is set to public, the contents of the container can be accessed on a publicly available web address. The address is built up like<container_name>/<path>/<filename>. For example, this cat picture:

There is no limit to how much you can store in a container, and you pay only for the space that you use. See our pricing.

Access Object Storage from the dashboard.

Navigate to Object Store > Containers. From here you can create and browse containers and change the public/private setting.

Accessing Object storage from your computer

Setting up the usage of object storage

In order to use Openstack Object storage you'll need to install and setup the Openstack CLI

Follow the instructions to install and configure the Openstack CLI Using the Openstack CLI - Leafcloud Tutorials

Making an object storage container (bucket)

Objects (files) are organized in so-called containers, or buckets, there is a limit to how many containers you can create, and a bucket is typically created for each project or service.

Containers need to have a name that is unique for all Leafcloud users. In other words, it may be that a name is already taken.

openstack container create <container_name>

Storage containers can also be viewed using the dashboard under Object Store

Up- and downloading files to object storage using the native client

Openstack object storage (also called Swift) uses the default OpenStack authentication and authorization system. If you are authorized for a project you are automatically authorized for its containers and can use the CLI.

List the objects in a container:

openstack object list <container_name>

Copy an item to the container:

openstack object create <container_name>/<path>/ <local_file>

Here, you can specify any path you like, or omit the path to put the object in the container root. There is no need to create a folder first. Under the hood there is no real folder structure. Paths' are just for your convenience.

Creating S3 compatible credentials

As an alternative to the OpenStack native container interface you can also use the de-facto industry standard "Amazon S3 interface". Out of convenience almost all cloud providers support this XML interface.

To use the S3-compatible interface you will need to make an EC2 credential. These credentials have access to your project and the storage containers within.

openstack ec2 credentials create

And example result contains:

access | 67fd5d4526114c97b87ace3981bd75cb
secret | 9da048142f604573bef0fa97sfb3509d                                                                                                         

These 'access' and 'secret' strings are the username and password for the object storage containers. Keep them safe. You cannot retrieve them later. But you can create new ones.

Access you bucket from your local computer using a GUI

There are many different clients available which support "Amazon S3", And Leafcloud object storage is fully compatible with them. One of the best (free) clients is Cyberduck. It's open-source and payment is optional.

  1. Use as the server address.
  2. Use your access key for Access Key ID
  3. Use your secret for Secret Access Key


Access your bucket from your server / using a CLI

Again, there are many different clients available which support S3. One of the best clients that we like is the Minio Client. You don't need to use the Minio server to use the Minio client.

Once you have installed the client you can use the following command to configure Leafcloud object storage:

mc alias set leafcloud [YOUR-ACCESS-KEY] [YOUR-SECRET-KEY]

You can then find the configuation file in ~/.mc/config.json

Test if you can list your buckets with:

$ mc ls leafcloud

You can copy things to the bucket like so:

mc copy <local_file> leafcloud/<bucket_name>/<path>/