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remove scoped ipv6 resolvers

This commit is contained in:
Joe Polny 2021-02-05 19:56:56 +00:00
parent c8a6785898
commit 2bde43c6e9

View File

@ -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