mirror of
https://github.com/nginx-proxy/nginx-proxy
synced 2024-05-29 02:46:18 +02:00
40 lines
1.4 KiB
Bash
Executable File
40 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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set -e
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# Warn if the DOCKER_HOST socket does not exist
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if [[ $DOCKER_HOST = unix://* ]]; then
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socket_file=${DOCKER_HOST#unix://}
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if ! [ -S "$socket_file" ]; then
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cat >&2 <<-EOT
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ERROR: you need to share your Docker host socket with a volume at $socket_file
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Typically you should run your nginxproxy/nginx-proxy with: \`-v /var/run/docker.sock:$socket_file:ro\`
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See the documentation at http://git.io/vZaGJ
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EOT
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socketMissing=1
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fi
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fi
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# Generate dhparam file if required
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/app/generate-dhparam.sh
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# Compute the DNS resolvers for use in the templates - if the IP contains ":", it's IPv6 and must be enclosed in []
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RESOLVERS=$(awk '$1 == "nameserver" {print ($2 ~ ":")? "["$2"]": $2}' ORS=' ' /etc/resolv.conf | sed 's/ *$//g'); export RESOLVERS
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SCOPED_IPV6_REGEX="\[fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}\]"
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if [ "$RESOLVERS" = "" ]; then
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echo "Warning: unable to determine DNS resolvers for nginx" >&2
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unset RESOLVERS
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elif [[ $RESOLVERS =~ $SCOPED_IPV6_REGEX ]]; then
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echo -n "Warning: Scoped IPv6 addresses removed from resolvers: " >&2
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echo "$RESOLVERS" | grep -Eo "$SCOPED_IPV6_REGEX" | paste -s -d ' ' >&2
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RESOLVERS=$(echo "$RESOLVERS" | sed -r "s/$SCOPED_IPV6_REGEX//g" | xargs echo -n); export RESOLVERS
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fi
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# If the user has run the default command and the socket doesn't exist, fail
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if [ "$socketMissing" = 1 ] && [ "$1" = forego ] && [ "$2" = start ] && [ "$3" = '-r' ]; then
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exit 1
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fi
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exec "$@"
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