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check for RESOLVERS env variable before computing dns to make the variable work as intended

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Constantin Wildförster 2018-12-19 17:19:53 +01:00
parent c33dedf10b
commit 2afe9ca853
1 changed files with 10 additions and 5 deletions
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15
docker-entrypoint.sh
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@ -18,11 +18,16 @@ fi
# Note: if $DHPARAM_BITS is not defined, generate-dhparam.sh will use 2048 as a default # Note: if $DHPARAM_BITS is not defined, generate-dhparam.sh will use 2048 as a default
/app/generate-dhparam.sh $DHPARAM_BITS /app/generate-dhparam.sh $DHPARAM_BITS
# Compute the DNS resolvers for use in the templates - if the IP contains ":", it's IPv6 and must be enclosed in [] # Check if the RESOLVERS environment variable has been set
export RESOLVERS=$(awk '$1 == "nameserver" {print ($2 ~ ":")? "["$2"]": $2}' ORS=' ' /etc/resolv.conf | sed 's/ *$//g') if [ "x$RESOLVERS" != "x" ]; then
if [ "x$RESOLVERS" = "x" ]; then echo "RESOLVERS environment variable set to '$RESOLVERS', skipping dns compute from resolv.conf" >&2
echo "Warning: unable to determine DNS resolvers for nginx" >&2 else
unset RESOLVERS # Compute the DNS resolvers for use in the templates - if the IP contains ":", it's IPv6 and must be enclosed in []
export RESOLVERS=$(awk '$1 == "nameserver" {print ($2 ~ ":")? "["$2"]": $2}' ORS=' ' /etc/resolv.conf | sed 's/ *$//g')
if [ "x$RESOLVERS" = "x" ]; then
echo "Warning: unable to determine DNS resolvers for nginx" >&2
unset RESOLVERS
fi
fi fi
# If the user has run the default command and the socket doesn't exist, fail # If the user has run the default command and the socket doesn't exist, fail