fix: force IPv4 outgoing connections in Squid proxy to fix proxy tests

mridang · claude · mridang · commit bc8fd3df01a1 · 2026-04-13T13:21:11.000+07:00
Squid 5.x resolves host.docker.internal to an IPv6 address on Docker
Desktop, but IPv6 connectivity to host-mapped ports is unreachable.
The obsolete dns_v4_first directive is ignored in Squid 5+, so use
tcp_outgoing_address 0.0.0.0 to force IPv4 outgoing connections.

Co-Authored-By: Claude Opus 4.6 &lt;noreply@anthropic.com&gt;
diff --git a/src/main/resources/fixtures/proxy/squid.conf b/src/main/resources/fixtures/proxy/squid.conf
@@ -1,3 +1,4 @@
 http_port 3128
 acl all src all
 http_access allow all
+tcp_outgoing_address 0.0.0.0
diff --git a/src/spec/resources/generated/csharp/proxy/squid.conf b/src/spec/resources/generated/csharp/proxy/squid.conf
@@ -1,3 +1,4 @@
 http_port 3128
 acl all src all
 http_access allow all
+tcp_outgoing_address 0.0.0.0
diff --git a/src/spec/resources/generated/java/proxy/squid.conf b/src/spec/resources/generated/java/proxy/squid.conf
@@ -1,3 +1,4 @@
 http_port 3128
 acl all src all
 http_access allow all
+tcp_outgoing_address 0.0.0.0
diff --git a/src/spec/resources/generated/node/proxy/squid.conf b/src/spec/resources/generated/node/proxy/squid.conf
@@ -1,3 +1,4 @@
 http_port 3128
 acl all src all
 http_access allow all
+tcp_outgoing_address 0.0.0.0
diff --git a/src/spec/resources/generated/php/proxy/squid.conf b/src/spec/resources/generated/php/proxy/squid.conf
@@ -1,3 +1,4 @@
 http_port 3128
 acl all src all
 http_access allow all
+tcp_outgoing_address 0.0.0.0
diff --git a/src/spec/resources/generated/python/proxy/squid.conf b/src/spec/resources/generated/python/proxy/squid.conf
@@ -1,3 +1,4 @@
 http_port 3128
 acl all src all
 http_access allow all
+tcp_outgoing_address 0.0.0.0
diff --git a/src/spec/resources/generated/ruby/proxy/squid.conf b/src/spec/resources/generated/ruby/proxy/squid.conf
@@ -1,3 +1,4 @@
 http_port 3128
 acl all src all
 http_access allow all
+tcp_outgoing_address 0.0.0.0
