From 571366f71bd1d76934959ba33ce7ef2ee07649a3 Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Tue, 21 May 2019 10:33:19 -0700
Subject: [PATCH] Attempt to enable IPv6 for Linux

---
 .azure-pipelines/steps/run.yml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/.azure-pipelines/steps/run.yml b/.azure-pipelines/steps/run.yml
index e697eb1c064..2d38920da88 100644
--- a/.azure-pipelines/steps/run.yml
+++ b/.azure-pipelines/steps/run.yml
@@ -37,6 +37,15 @@ steps:
 
 - template: install-windows-build-deps.yml
 
+# Looks like docker containers have IPv6 disabled by default, so let's turn it
+# on since libstd tests require it
+- bash: |
+    set -e
+    echo '{"ipv6":true,"fixed-cidr-v6":"fd9a:8454:6789:13f7::/64"}' | sudo tee /etc/docker/daemon.json
+    sudo service docker restart
+  displayName: Enable IPv6
+  condition: and(succeeded(), eq(variables['Agent.OS'], 'Linux'))
+
 # Check out all our submodules, but more quickly than using git by using one of
 # our custom scripts
 - bash: |