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+# SPIRE Tailscale Plugin
+
+This repository contains agent and server plugins for [SPIRE](https://github.com/spiffe/spire) to allow [Tailscale](https://tailscale.com) node attestation.
+
+## Quick Start
+
+Before starting, create a running SPIRE deployment and add the following configuration to the agent and server.
+Both server and agents should be running on a Tailscale node.
+
+### Agent Configuration
+
+```hcl
+NodeAttestor "tailscale" {
+	plugin_cmd = "/path/to/plugin_cmd"
+	plugin_checksum = "sha256 of the plugin binary"
+	plugin_data {
+	}
+}
+```
+
+### Server Configuration
+
+```hcl
+NodeAttestor "tailscale" {
+	plugin_cmd = "/path/to/plugin_cmd"
+	plugin_checksum = "sha256 of the plugin binary"
+	plugin_data {
+	}
+}
+```
+
+## How it Works
+
+The plugin uses the Tailscale Node public keys as the method of attestation and is inspired on the [client verification](https://tailscale.com/kb/1118/custom-derp-servers/?q=derp#optional-restricting-client-access-to-your-derp-node) in custom DERP servers.
+The plugin operates as follows:
+
+1. Agent fetches the Tailscale Node key from the local `tailscaled` agent
+1. Agent sends the key to the server
+1. Server inspects the key and checks if it is a valid key in its Tailscale network.
+1. Server creates a SPIFFE ID in the form of `spiffe://<trust_domain>/spire/agent/ts/<hostname>`
+1. All done!
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