M. J. Fromberger 95426b79a9
logtail: avoid racing eventbus subscriptions with shutdown (#17695)
In #17639 we moved the subscription into NewLogger to ensure we would not race
subscribing with shutdown of the eventbus client. Doing so fixed that problem,
but exposed another: As we were only servicing events occasionally when waiting
for the network to come up, we could leave the eventbus to stall in cases where
a number of network deltas arrived later and weren't processed.

To address that, let's separate the concerns: As before, we'll Subscribe early
to avoid conflicts with shutdown; but instead of using the subscriber directly
to determine readiness, we'll keep track of the last-known network state in a
selectable condition that the subscriber updates for us.  When we want to wait,
we'll wait on that condition (or until our context ends), ensuring all the
events get processed in a timely manner.

Updates #17638
Updates #15160

Change-Id: I28339a372be4ab24be46e2834a218874c33a0d2d
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
2025-10-30 08:18:32 -07:00
..

Caution

Development of tsidp has been moved to https://github.com/tailscale/tsidp and it is no longer maintained here. Please visit the new repository to see the latest updates, file an issue, or contribute.

tsidp - Tailscale OpenID Connect (OIDC) Identity Provider

status: community project

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:

  1. In Proxmox, navigate to Datacenter > Realms > Add OpenID Connect Server

  2. 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
  3. 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 the tsidp server (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.