38 lines
1.0 KiB
Bash
Executable File
38 lines
1.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# Tilt cannot differentiate between the listen and web address, so we need to jerry-rig the
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# external IP onto the external interface and undo the DNAT.
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if [[ "$EUID" -eq 0 ]]; then
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echo "Do not run as root"
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exit 1
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fi
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EXT_IP=$(curl -s -H "Metadata-Flavor: Google" \
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"http://metadata/computeMetadata/v1/instance/network-interfaces/0/access-configs/0/external-ip")
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IFACE=$(ip route | awk '/default/ { print $5 }')
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if [[ -z "${IFACE}" ]]; then
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echo "Could not find interface"
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exit 1
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fi
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if [[ -z "${EXT_IP}" ]]; then
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echo "Could not find external IP"
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exit 1
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fi
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if ! ip addr show dev $IFACE | grep -q "inet $EXT_IP"; then
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echo "Adding IP $EXT_IP to $IFACE"
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sudo ip addr add "$EXT_IP/32" dev $IFACE
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fi
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RULE="-i $IFACE -p tcp ! --dport 22 -j DNAT --to-destination $EXT_IP"
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if ! sudo iptables -t nat -C PREROUTING $RULE; then
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echo "Adding iptables rule $RULE"
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sudo iptables -t nat -I PREROUTING $RULE
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fi
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tilt up --host=$EXT_IP --port=8080 -- "--webHost=$EXT_IP" ${@}
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