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@@ -0,0 +1,22 @@
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+#!/bin/bash
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+set -e
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+
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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 $socket_file
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+ Typically you should run your jwilder/nginx-proxy with: \`-v /var/run/docker.sock:$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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+
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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 -a "$1" = forego -a "$2" = start -a "$3" = '-r' ]; then
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+ exit 1
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+fi
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+
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+exec "$@"
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