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Diffstat (limited to 'meta/recipes-devtools/go/go-1.20/0010-net-Fix-issue-with-DNS-not-being-updated.patch')
| -rw-r--r-- | meta/recipes-devtools/go/go-1.20/0010-net-Fix-issue-with-DNS-not-being-updated.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/meta/recipes-devtools/go/go-1.20/0010-net-Fix-issue-with-DNS-not-being-updated.patch b/meta/recipes-devtools/go/go-1.20/0010-net-Fix-issue-with-DNS-not-being-updated.patch new file mode 100644 index 0000000000..6ead518843 --- /dev/null +++ b/meta/recipes-devtools/go/go-1.20/0010-net-Fix-issue-with-DNS-not-being-updated.patch @@ -0,0 +1,51 @@ +From 20176b390e28daa86b4552965cb7bd9181983c4d Mon Sep 17 00:00:00 2001 +From: Chaitanya Vadrevu <chaitanya.vadrevu@ni.com> +Date: Mon, 6 Nov 2023 20:11:19 -0600 +Subject: [PATCH] net: Fix issue with DNS not being updated + +When dns requests are made, go's native DNS resolver only reads +/etc/resolv.conf if the previous request is older than 5 seconds. + +On first network call, an initialization code runs that is +supposed to initialize DNS data and set lastChecked time. There is a bug +in this code that causes /etc/resolv.conf to not be read during +initialization and the DNS data from program startup ends up being used +until the next 5 seconds. This means that if /etc/resolv.conf changed +between program startup and the first network call, old DNS data is +still used until the next 5 seconds. + +This causes "docker pull" to fail the first time if docker daemon is +started before networking is up. + +Upstream commit d52883f443e1d564b0300acdd382af1769bf0477 made lot of +improvements to DNS resolver to fix some issues which also fixes this +issue. +This patch picks the relevant changes from it to fix this particular +issue. + +Upstream-Status: Backport [https://github.com/golang/go/commit/d52883f443e1d564b0300acdd382af1769bf0477] + +Signed-off-by: Chaitanya Vadrevu <chaitanya.vadrevu@ni.com> +--- + src/net/dnsclient_unix.go | 5 +---- + 1 file changed, 1 insertion(+), 4 deletions(-) + +diff --git a/src/net/dnsclient_unix.go b/src/net/dnsclient_unix.go +index 6dfd4af..520ffe6 100644 +--- a/src/net/dnsclient_unix.go ++++ b/src/net/dnsclient_unix.go +@@ -337,10 +337,7 @@ var resolvConf resolverConfig + func (conf *resolverConfig) init() { + // Set dnsConfig and lastChecked so we don't parse + // resolv.conf twice the first time. +- conf.dnsConfig = systemConf().resolv +- if conf.dnsConfig == nil { +- conf.dnsConfig = dnsReadConfig("/etc/resolv.conf") +- } ++ conf.dnsConfig = dnsReadConfig("/etc/resolv.conf") + conf.lastChecked = time.Now() + + // Prepare ch so that only one update of resolverConfig may +-- +2.34.1 + |