mirror of https://github.com/OpenVidu/openvidu.git
37 lines
966 B
Bash
37 lines
966 B
Bash
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#!/usr/bin/env sh
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# shellcheck shell=dash
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#/ Return the IP address of 'host.docker.internal'.
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#/
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#/ Docker injects 'host.docker.internal' into /etc/hosts when the container
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#/ is started with --add-host=host.docker.internal:host-gateway, which maps
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#/ it to the host machine's gateway IP as seen from inside the container.
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# Shell setup
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# ===========
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# Shell options for strict error checking.
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for OPTION in errexit errtrace pipefail nounset; do
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set -o | grep -wq "$OPTION" && set -o "$OPTION"
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done
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# Trace all commands (to stderr).
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#set -o xtrace
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# Discover host.docker.internal IP
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# =================================
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IP="$(grep -m1 -E '^[0-9][^#]*[[:space:]]host\.docker\.internal([[:space:]]|$)' /etc/hosts | awk '{print $1}')"
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if [ -z "$IP" ]; then
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echo "[$0] 'host.docker.internal' not found in /etc/hosts" >&2
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echo "[$0] Make sure the container is started with --add-host=host.docker.internal:host-gateway" >&2
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exit 1
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fi
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echo "$IP"
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