From 9626fd835ce403fb20262967e16699599f65de5d Mon Sep 17 00:00:00 2001
From: Ian Neubert <ian@ianneubert.com>
Date: Tue, 4 Apr 2023 10:28:36 -0400
Subject: [PATCH] Set optional tailscaled flags with TAILSCALE_OPT (#6)

* Allow user to set additional Tailscaled options

* Added example use of TAILSCALE_OPT
---
 docker-compose/simple-example/docker-compose.yml | 2 ++
 images/tailscale/start.sh                        | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/docker-compose/simple-example/docker-compose.yml b/docker-compose/simple-example/docker-compose.yml
index 8693cae..333299c 100644
--- a/docker-compose/simple-example/docker-compose.yml
+++ b/docker-compose/simple-example/docker-compose.yml
@@ -7,6 +7,8 @@ services:
       TAILSCALE_AUTH_KEY: ${TAILSCALE_AUTH_KEY:?err}
       TAILSCALE_HOSTNAME: ${TAILSCALE_HOSTNAME:-tailscale-docker-simple-example}
       TAILSCALE_STATE_ARG: "mem:"
+      # (optional) set additional flags on tailscaled
+      # TAILSCALE_OPT: --outbound-http-proxy-listen=localhost:1055
   some-service-1:
     image: nginxdemos/hello
     network_mode: "service:tailscale"
diff --git a/images/tailscale/start.sh b/images/tailscale/start.sh
index 73aaaed..92e4e06 100644
--- a/images/tailscale/start.sh
+++ b/images/tailscale/start.sh
@@ -2,11 +2,11 @@
 trap 'kill -TERM $PID' TERM INT
 echo "Starting Tailscale daemon"
 # -state=mem: will logout and remove ephemeral node from network immediately after ending.
-tailscaled --tun=userspace-networking --state=${TAILSCALE_STATE_ARG} &
+tailscaled --tun=userspace-networking --state=${TAILSCALE_STATE_ARG} ${TAILSCALE_OPT} &
 PID=$!
 until tailscale up --authkey="${TAILSCALE_AUTH_KEY}" --hostname="${TAILSCALE_HOSTNAME}"; do
     sleep 0.1
 done
 tailscale status
 wait ${PID}
-wait ${PID}
\ No newline at end of file
+wait ${PID}