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`zrok` is a next-generation, peer-to-peer sharing platform built on top of [OpenZiti](https://docs.openziti.io/docs/learn/introduction/), a programmable zero-trust network overlay. `zrok` is a _Ziti Native Application_.
`zrok` facilitates sharing resources both publicly and privately, exposing them to an audience you can easily control. Public sharing allows you to share `zrok` resources with non-`zrok` users over the public internet. Private sharing allows you to directly share peer-to-peer with other `zrok` users without changing your security or firewall settings.
`zrok` facilitates sharing resources both publicly and privately. Public sharing allows you to share `zrok` resources with non-`zrok` users over the public internet. Private sharing allows you to directly share your resources peer-to-peer with other `zrok` users without changing your security or firewall settings.
Like other offerings in this space, `zrok` allows users to create ephemeral reverse proxies ("tunnels") for HTTP, TCP and UDP resources. Additionally:
Like other offerings in this space, `zrok` allows users to share tunnels for HTTP, TCP and UDP network resources.
* `zrok` allows users to _privately_ share resources with other `zrok` users; in _private_ usage scenarios, your private resources are not exposed to any public endpoints; all communication is securely and privately transported between `zrok` environments
* `zrok` allows sharing other types of resources; rather than just proxying `http` endpoints, `zrok` allows users to easily and rapidly share files and web content
* `zrok` is ready to be extended to easily support many kinds of decentralized resource sharing; `zrok` provides a framework that makes this kind of peer-to-peer resource sharing simple and secure
![zrok Web Console](/home/michael/Repos/nf/zrok/docs/images/zrok_web_console.png)
![zrok](docs/images/zrok_deployment.png)
## Extensible
`zrok` allows sharing other types of resources; rather than just proxying HTTP or other network resources, `zrok` allows users to easily and rapidly share files, web content, and custom resources in a peer-to-peer manner.
`zrok` is an extensible platform for sharing.
## Frictionless
You can be up and sharing using the `zrok.io` service in minutes. Here is a synopsis of what's involved.
You can be up and sharing using the `zrok.io` service in minutes. Here is a synopsis of what's involved:
### First-time Setup
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See the [Concepts and Getting Started Guide](docs/getting-started.md) for a full overview.
## The `zrok` SDK
`zrok` includes an SDK that allows you to embed `zrok` sharing capabilities into your own applications. If you're familiar with a golang `net.Conn` and `net.Listener`, you'll be right at home with our SDK.
### A Simple `zrok` Sharing Service
```go
// load enabled zrok environment
root, err := environment.LoadRoot()
// request a share for your resource
shr, err := sdk.CreateShare(root, &sdk.ShareRequest{
BackendMode: sdk.TcpTunnelBackendMode,
ShareMode: sdk.PrivateShareMode,
// ...
})
// accept requests for your resource
listener, err := sdk.NewListener(shr.Token, root)
```
### A Simple `zrok` Client
```go
// load enabled zrok environment
root, err := environment.LoadRoot()
// request access to a shared zrok resource
acc, err := sdk.CreateAccess(root, &sdk.AccessRequest{ShareToken: shrToken})
// establish a connection to the resource directly
conn, err := sdk.NewDialer(shrToken, root)
```
## Self-Hosting
`zrok` is designed to scale up to support extremely large service instances. `zrok.io` is a public service instance operated by NetFoundry using the same code base that is available to self-hosted environments.