docker-entrypoint.sh 1.1 KB

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