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nginx-proxy/docker-entrypoint.sh

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#!/bin/bash
set -e
# Warn if the DOCKER_HOST socket does not exist
if [[ $DOCKER_HOST = unix://* ]]; then
socket_file=${DOCKER_HOST#unix://}
if ! [ -S $socket_file ]; then
cat >&2 <<-EOT
ERROR: you need to share your Docker host socket with a volume at $socket_file
Typically you should run your jwilder/nginx-proxy with: \`-v /var/run/docker.sock:$socket_file:ro\`
See the documentation at http://git.io/vZaGJ
EOT
socketMissing=1
fi
fi
# Generate dhparam file if required
# Note: if $DHPARAM_BITS is not defined, generate-dhparam.sh will use 2048 as a default
/app/generate-dhparam.sh $DHPARAM_BITS
# Compute the DNS resolvers for use in the templates - if the IP contains ":", it's IPv6 and must be enclosed in []
export RESOLVERS=$(awk '$1 == "nameserver" {print ($2 ~ ":")? "["$2"]": $2}' ORS=' ' /etc/resolv.conf | sed 's/ *$//g')
if [ "x$RESOLVERS" = "x" ]; then
echo "Warning: unable to determine DNS resolvers for nginx" >&2
unset RESOLVERS
fi
# If the user has run the default command and the socket doesn't exist, fail
if [ "$socketMissing" = 1 -a "$1" = forego -a "$2" = start -a "$3" = '-r' ]; then
exit 1
fi
exec "$@"