helios-solo: skydns workaround to allow DNS responses up to 32768 bytes

TL;DR; skydns does not handle TCP well. We already worked around this in #900. See thar PR for more context. However, that change only fixed the problem to an extent as we still have the same issue once the responses are >4096 bytes. This change extends that workaround to allow us to survive responses up to 32768 bytes in size. This change does not fix the issue, but should make it more rare.
spotify · Jan 24, 2017 · 5573fd2 · 5573fd2
1 parent b74b938
commit 5573fd2
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Showing 3 changed files with 4 additions and 2 deletions.
diff --git a/solo/base/unbound-skydns.conf b/solo/base/unbound-skydns.conf
@@ -8,6 +8,8 @@ server:
     outgoing-num-tcp: 256
     access-control: 0.0.0.0/0 allow
     do-not-query-localhost: no
+    max-udp-size: 32768
+    edns-buffer-size: 32768
 
 forward-zone:
     name: "."

diff --git a/solo/base/version.txt b/solo/base/version.txt
@@ -1 +1 @@
-0.6
+0.7
diff --git a/solo/docker/Dockerfile b/solo/docker/Dockerfile
@@ -1,4 +1,4 @@
-FROM spotify/helios-solo-base:0.6
+FROM spotify/helios-solo-base:0.7
 
 EXPOSE 5801