From 2bde43c6e94c9f9cb818636b1c84858537830300 Mon Sep 17 00:00:00 2001 From: Joe Polny Date: Fri, 5 Feb 2021 19:56:56 +0000 Subject: [PATCH] remove scoped ipv6 resolvers --- docker-entrypoint.sh | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh index b425dfe..6eeada9 100755 --- a/docker-entrypoint.sh +++ b/docker-entrypoint.sh @@ -21,9 +21,16 @@ fi # Compute the DNS resolvers for use in the templates - if the IP contains ":", it's IPv6 and must be enclosed in [] export RESOLVERS=$(awk '$1 == "nameserver" {print ($2 ~ ":")? "["$2"]": $2}' ORS=' ' /etc/resolv.conf | sed 's/ *$//g') + +SCOPED_IPV6_REGEX="\[fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}\]" + if [ "x$RESOLVERS" = "x" ]; then - echo "Warning: unable to determine DNS resolvers for nginx" >&2 - unset RESOLVERS + echo "Warning: unable to determine DNS resolvers for nginx" >&2 + unset RESOLVERS +elif [[ $RESOLVERS =~ $SCOPED_IPV6_REGEX ]]; then + echo -n "Warning: Scoped IPv6 addresses removed from resolvers: " >&2 + echo $RESOLVERS | grep -Eo $SCOPED_IPV6_REGEX | paste -s -d ' ' >&2 + export RESOLVERS=$(echo $RESOLVERS | sed -r "s/$SCOPED_IPV6_REGEX//g" | xargs echo -n) fi # If the user has run the default command and the socket doesn't exist, fail