From 08c077d0817ff1669dec4a3afa560ddbac7260dd Mon Sep 17 00:00:00 2001
From: Frank Edwards <frank.edwards@fluentnetworks.com.au>
Date: Sat, 6 Jan 2024 10:39:50 +1000
Subject: [PATCH] 0.1.26

Add UPDATE_TAILSCALE option.
---
 README.md    | 2 ++
 build.sh     | 3 ++-
 tailscale.sh | 5 +++++
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index e6fe782..92d072b 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,7 @@ This section follows the Mikrotik Container documentation with additional steps
 | ADVERTISE_ROUTES  | Comma-separated list of routes to advertise   |                                              |
 | CONTAINER_GATEWAY | The container bridge (veth1) IP address on the router |                                              |
 | LOGIN_SERVER      | Headscale login server                        | Only required for Headscale control server. Do not set if using Tailscale       |
+| UPDATE_TAILSCALE      | Update tailscale on container startup                         |       |
 | TAILSCALE_ARGS    | Additional arguments passed to tailscale      | Optional                                     |
 | TAILSCALED_ARGS   | Additional arguments passed to tailscaled     | Optional                                     |
 
@@ -83,6 +84,7 @@ add name="tailscale" key="PASSWORD" value="xxxxxxxxxxxxxx"
 add name="tailscale" key="AUTH_KEY" value="tskey-xxxxxxxxxxxxxxxxxxxxxxxx"
 add name="tailscale" key="ADVERTISE_ROUTES" value="192.168.88.0/24"
 add name="tailscale" key="CONTAINER_GATEWAY" value="172.17.0.1"
+add name="tailscale" key="UPDATE_TAILSCALE"
 add name="tailscale" key="TAILSCALE_ARGS" value="--accept-routes --advertise-exit-node"
 ```
 Example Headscale control server configuration:
diff --git a/build.sh b/build.sh
index 070367f..8eee4b6 100755
--- a/build.sh
+++ b/build.sh
@@ -26,7 +26,7 @@
 #
 PLATFORM="linux/arm/v7"
 TAILSCALE_VERSION=1.52.1
-VERSION=0.1.25
+VERSION=0.1.26
 
 set -eu
 
@@ -41,6 +41,7 @@ cd tailscale && eval $(./build_dist.sh shellvars) && cd ..
 
 docker buildx build \
   --no-cache \
+  --build-arg TAILSCALE_VERSION=$TAILSCALE_VERSION \
   --build-arg VERSION_LONG=$VERSION_LONG \
   --build-arg VERSION_SHORT=$VERSION_SHORT \
   --build-arg VERSION_GIT_HASH=$VERSION_GIT_HASH \
diff --git a/tailscale.sh b/tailscale.sh
index ba324f4..389c8f9 100755
--- a/tailscale.sh
+++ b/tailscale.sh
@@ -21,6 +21,11 @@ for s in "${SUBNETS[@]}"; do
   ip route add "$s" via "${CONTAINER_GATEWAY}"
 done
 
+# Perform an update if set
+if [[ ! -z "${UPDATE_TAILSCALE+x}" ]]; then
+  /usr/local/bin/tailscale update --yes
+fi
+
 # Set login server for tailscale
 if [[ -z "$LOGIN_SERVER" ]]; then
 	LOGIN_SERVER=https://controlplane.tailscale.com