From 99a3bb8df08ff2a4bcd4a6d93d32cc42d5d19422 Mon Sep 17 00:00:00 2001
From: Kristoffer Dalby <kristoffer@dalby.cc>
Date: Thu, 9 Apr 2026 16:09:01 +0000
Subject: [PATCH] Dockerfile: bump tailscale DERPer builder to Go 1.26.2

Tailscale main now requires go >= 1.26.2, so building the HEAD derper
image against golang:1.26.1-alpine fails with:

    go: go.mod requires go >= 1.26.2 (running go 1.26.1; GOTOOLCHAIN=local)

Bump Dockerfile.derper to match the earlier fix for Dockerfile.tailscale-HEAD
in 6390fcee so TestDERPVerifyEndpoint can build the derper container
again. This test is the only consumer of Dockerfile.derper, which is why
the failure was scoped to that single integration job.
---
 Dockerfile.derper | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Dockerfile.derper b/Dockerfile.derper
index 3281f365..96b69ce2 100644
--- a/Dockerfile.derper
+++ b/Dockerfile.derper
@@ -1,6 +1,6 @@
 # For testing purposes only
 
-FROM golang:1.26.1-alpine AS build-env
+FROM golang:1.26.2-alpine AS build-env
 
 WORKDIR /go/src