f5d3c59a92
DERP writes go via TCP and the host OS will have plenty of buffer space. We've observed in the wild with a backed up TCP socket kernel side buffers of >2.4MB. The DERP internal queue being larger causes an increase in the probability that the contents of the backbuffer are "dead letters" - packets that were assumed to be lost. A first step to improvement is to size this queue only large enough to avoid some of the initial connect stall problem, but not large enough that it is contributing in a substantial way to buffer bloat / dead-letter retention. Updates tailscale/corp#31762 Signed-off-by: James Tucker <james@tailscale.com>
tsidp - Tailscale OpenID Connect (OIDC) Identity Provider
tsidp is an OIDC Identity Provider (IdP) server that integrates with your Tailscale network. It allows you to use Tailscale identities for authentication in applications that support OpenID Connect, enabling single sign-on (SSO) capabilities within your tailnet.
Prerequisites
- A Tailscale network (tailnet) with magicDNS and HTTPS enabled
- A Tailscale authentication key from your tailnet
- Docker installed on your system
Installation using Docker
Pre-built image
A pre-built tsidp image exists at tailscale/tsidp:unstable.
Building from Source
# Clone the Tailscale repository
git clone https://github.com/tailscale/tailscale.git
cd tailscale
# Build and publish to your own registry
make publishdevtsidp REPO=ghcr.io/yourusername/tsidp TAGS=v0.0.1 PUSH=true
Running the Container
Replace YOUR_TAILSCALE_AUTHKEY with your Tailscale authentication key:
docker run -d \
--name tsidp \
-p 443:443 \
-e TS_AUTHKEY=YOUR_TAILSCALE_AUTHKEY \
-e TAILSCALE_USE_WIP_CODE=1 \
-v tsidp-data:/var/lib/tsidp \
ghcr.io/yourusername/tsidp:v0.0.1 \
tsidp --hostname=idp --dir=/var/lib/tsidp
Verify Installation
docker logs tsidp
Visit https://idp.tailnet.ts.net to confirm the service is running.
Usage Example: Proxmox Integration
Here's how to configure Proxmox to use tsidp for authentication:
-
In Proxmox, navigate to Datacenter > Realms > Add OpenID Connect Server
-
Configure the following settings:
- Issuer URL:
https://idp.velociraptor.ts.net - Realm:
tailscale(or your preferred name) - Client ID:
unused - Client Key:
unused - Default:
true - Autocreate users:
true - Username claim:
email
- Issuer URL:
-
Set up user permissions:
- Go to Datacenter > Permissions > Groups
- Create a new group (e.g., "tsadmins")
- Click Permissions in the sidebar
- Add Group Permission
- Set Path to
/for full admin access or scope as needed - Set the group and role
- Add Tailscale-authenticated users to the group
Configuration Options
The tsidp server supports several command-line flags:
--verbose: Enable verbose logging--port: Port to listen on (default: 443)--local-port: Allow requests from localhost--use-local-tailscaled: Use local tailscaled instead of tsnet--hostname: tsnet hostname--dir: tsnet state directory
Environment Variables
TS_AUTHKEY: Your Tailscale authentication key (required)TS_HOSTNAME: Hostname for thetsidpserver (default: "idp", Docker only)TS_STATE_DIR: State directory (default: "/var/lib/tsidp", Docker only)TAILSCALE_USE_WIP_CODE: Enable work-in-progress code (default: "1")
Support
This is an experimental, work in progress, community project. For issues or questions, file issues on the GitHub repository.
License
BSD-3-Clause License. See LICENSE for details.