Ubicloud

Ubicloud is an open source cloud that can run anywhere. Think of it as an open alternative
to cloud providers, like what Linux is to proprietary operating systems.

Ubicloud provides IaaS cloud features on bare metal providers, such as Hetzner, Leaseweb,
and AWS Bare Metal. You can set it up yourself on these providers or you can use our
managed service. We’re currently in public beta.

Quick start

Managed platform

You can use Ubicloud without installing anything. When you do this, we pass along the
underlying provider’s benefits to you, such as price or location.

https://console.ubicloud.com

Build your own cloud

You can also build your own cloud. To do this, start up Ubicloud’s control plane and
connect to its cloud console.

git clone [email protected]:ubicloud/ubicloud.git

# Generate secrets for demo
./demo/generate_env

# Run containers: db-migrator, app (web & respirate), postgresql
docker-compose -f demo/docker-compose.yml up

# Visit localhost:3000

The control plane is responsible for cloudifying bare metal Linux machines.
The easiest way to build your own cloud is to lease instances from one of those
providers. For example: https://www.hetzner.com/sb

Once you lease instance(s), run the following script for each instance to cloudify
the instance. By default, the script cloudifies bare metal instances leased from
Hetzner. After you cloudify your instances, you can provision and manage cloud
resources on these machines.

# Enter hostname/IP and provider, and install SSH key as instructed by script
docker exec -it ubicloud-app ./demo/cloudify_server

Later when you create VMs, Ubicloud will assign them IPv6 addresses. If your ISP
doesn’t support IPv6, please use a VPN or tunnel broker such as Mullvad or Hurricane
Electric’s https://tunnelbroker.net/ to connect. Alternatively, you could lease
IPv4 addresses from your provider and add them to your control plane.

Why use it

Public cloud providers like AWS, Azure, and Google Cloud have made life easier for
start-ups and enterprises. But they are closed source, have you rent computers
at a huge premium, and lock you in. Ubicloud offers an open source alternative,
reduces your costs, and returns control of your infrastructure back to you. All
without sacrificing the cloud’s convenience.

Today, AWS offers about two hundred cloud services. Ultimately, we will implement
10% of the cloud services that make up 80% of that consumption.

Example workloads and reasons to use Ubicloud today include:

• You have an ephemeral workload like a CI/CD pipeline (we’re integrating with
  GitHub Actions), or you’d like to run compute/memory heavy tests. Our managed
  cloud is ~3x cheaper than AWS, so you save on costs.

• You want a portable and simple app deployment service like
  Kamal. We’re moving Ubicloud’s control plane
  from Heroku to Kamal; and we want to provide open and portable services for
  Kamal’s dependencies in the process.

• You have bare metal machines sitting somewhere. You’d like to build your own
  cloud for portability, security, or compliance reasons.

Status

Ubicloud is in public beta. You can provide us your feedback, get help, or ask
us to support your network environment in the
Community Forum.

We follow an established architectural pattern in building public cloud services.
A control plane manages a data plane, where the data plane leverages open source
software. You can find our current cloud components / services below.

• Elastic Compute: Our control plane communicates with Linux bare metal servers
  using SSH. We use Cloud
  Hypervisor as our virtual
  machine monitor (VMM); and each instance of the VMM is contained within Linux
  namespaces for further isolation / security.

• Networking: We use IPsec tunneling to
  establish an encrypted and private network environment. We support IPv4 and IPv6 in
  a dual-stack setup and provide both public and private networking. For security,
  each customer’s VMs operate in their own networking namespace. For
  firewalls
  and load balancers,
  we use Linux nftables.

• Block Storage, non replicated: We use Storage Performance Development Toolkit
  (SPDK) to provide virtualized block storage to VMs. SPDK enables
  us to add enterprise features such as snapshot and replication in the future. We
  follow security best practices and encrypt the data encryption key itself.

• Attribute-Based Access Control (ABAC): With ABAC, you can define attributes,
  roles, and permissions for users and give them fine-grained access to resources. You
  can read more about our ABAC design here.

• What’s Next?: We’re planning to work on a managed K8s or metrics/monitoring
  service next. If you have a workload that would benefit from a specific cloud
  service, please get in touch with us through our Community
  Forum.

• Control plane: Manages data plane services and resources. This is a Ruby program
  that stores its data in Postgres. We use the Roda
  framework to serve HTTP requests and Sequel to
  access the database. We manage web authentication with
  Rodauth. We communicate with data plane servers
  using SSH, via the library net-ssh. For our
  tests, we use RSpec.

• Cloud console: Server-side web app served by the Roda framework. For the visual
  design, we use Tailwind CSS with components from
  Tailwind UI. We also use jQuery for interactivity.

If you’d like to start hacking with Ubicloud, any method of obtaining Ruby and Postgres
versions is acceptable. If you have no opinion on this, our development team uses asdf-vm
as documented here in detail.

Greptile provides an AI/LLM that indexes
Ubicloud’s source code can answer questions about
it.

FAQ

Do you have any experience with building this sort of thing?

Our founding team comes from Azure; and worked at Amazon and Heroku before that.
We also have start-up experience. We were co-founders and founding team members
at Citus Data, which got acquired by
Microsoft.

How is this different than OpenStack?

We see three differences. First, Ubicloud is available as a managed service (vs boxed
software). This way, you can get started in minutes rather than weeks. Since Ubicloud
is designed for multi-tenancy, it comes with built-in features such as encryption
at rest and in transit, virtual networking, secrets rotation, etc.

Second, we’re initially targeting developers. This -we hope- will give us fast feedback
cycles and enable us to have 6 key services in GA form in the next two years. OpenStack
is still primarily used for 3 cloud services.

Last, we’re designing for simplicity. With OpenStack, you pick between 10 hypervisors,
10 S3 implementations, and 5 block storage implementations. The software needs to work
in a way where all of these implementations are compatible with each other. That leads
to consultant-ware. We’ll take a more opinionated approach with Ubicloud.