Tailscale - Deploying with Docker and Portainer

README.md

Just thought I'd put together some detail on deploying Tailscale using Docker and Portainer. These bits-and-pieces are available elsewhere, but not together, so hopefully this will save someone a bit of time if you'd like to add Tailscale to an existing Docker install:

Here's my annotated recommended docker-compose, to use with Portainer-Stacks. Note that I'm not using a pre-made Auth Key. I started that way, but realized it was very easy to simply check the Portainer log for the tailscaled container once the stack is running. In that log you'll see the standard Auth link that you can use to authorize the container. This way you don't need to create a key in advance, or create a reusable key that introduces a security risk:

version: '3.9'
services:
  tailscale:
    image: tailscale/tailscale
    container_name: tailscaled
    cap_add:
      - NET_ADMIN
      - NET_RAW
    environment:
#      - TS_HOSTNAME=${TS_HOSTNAME} # Usually not necessary for your hostname to be the same name on the tailscale network
#      - TS_AUTHKEY=${TS_AUTHKEY} # Generate auth keys here: https://login.tailscale.com/admin/settings/keys
#      - TS_ROUTES=${TS_ROUTES} # Creates a subnet router for Tailscale. Use your subnet's CIDR in the form: 192.168.1.0/24
#      - TS_ACCEPT_DNS=${TS_ACCEPT_DNS} # Set to false for Pi-hole Docker setups
      - TS_SOCKET=${TS_SOCKET} # Specifying the /var/lib/tailscale/tailscaled.sock location allows use of standard Tailscale commands 
      - TS_EXTRA_ARGS=${TS_EXTRA_ARGS} # Add any other supported arguments in the docker commandline style: e.g. --advertise-exit-node
      - TS_STATE_DIR=${TS_STATE_DIR} # Required to create a persistent container state that will survive reboots
    volumes:
      - /data:/var/lib # Creates a tailscale directory under /data for persistence
      - /dev/net/tun:/dev/net/tun
    network_mode: host
    restart: unless-stopped

These are the minimum environment variables you'll want to define in the Portainer-Environment section:

TS_SOCKET=/var/run/tailscale/tailscaled.sock
TS_EXTRA_ARGS=--accept-routes
TS_STATE_DIR=/var/lib/tailscale

With these variables, you'll be able to exec into the container to run commands like "tailscale version" and "tailscale status". Your container will accept routes advertised by a designated node, and your setup (including authorization) will persist across reboots.

Heads up... Recent updates to containerd require moving the TUN mapping over to devices...

Thank you. This was the missing piece I needed to get the tailscale container running again after updating debian (and containerd).

Hi, how can I use this compose file to have access to the host instead of a particular container. I mean I want to install tailscale in my server with docker and be able to ssh to and from it. Is this even possible?

Yes.

Tailscale Docker uses userspace networking by default. In this situation "tailscale ping" (eg. docker exec -it tailscaled tailscale ping 100.X.X.X) to other tailscale hosts will work but normal ping to tailscale hosts will fail.

TS_USERSPACE: Enable userspace networking, instead of kernel networking enabled by default.

To fix it, you can disable userspace networking by setting env variable TS_USERSPACE to false.

- TS_USERSPACE=false

Source: https://old.reddit.com/r/Tailscale/comments/15f8cbc/tailscale_docker_not_able_to_ping_other_hosts/kaozlvy/

Hi, thanks for this guide!

I am using Portainer in which I have my Tailscale Stack as well as other stacks/containers that offer services on different ports. I turned on Tailscale HTTPS, and created the certificates as per https://tailscale.com/kb/1153/enabling-https

I can access the sites via http://tailscaleIP:port but not https://tailscaleIP:port

Any suggestions?

Hi, thanks for this guide!

I am using Portainer in which I have my Tailscale Stack as well as other stacks/containers that offer services on different ports. I turned on Tailscale HTTPS, and created the certificates as per https://tailscale.com/kb/1153/enabling-https

I can access the sites via http://tailscaleIP:port but not https://tailscaleIP:port

Any suggestions?

Replying to this for anyone else that has trouble with this. It seems right now that you are not able to do HTTPS for the whole host and all the open ports. I was able to get this functionality working with Tailscale Serve.

docker exec tailscaled tailscale serve --bg --https=[PORT1] http://localhost:[PORT2]
docker exec tailscaled tailscale serve status

• PORT1 does not have to equal PORT2
• --bg = run in background
• your serve settings should be consistent via reboots

To access on another tailscale computer you use your .ts.net domain: https://machine-abcd.ts.net:PORT1