23 lines
707 B
Bash
23 lines
707 B
Bash
 
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#!/bin/sh
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# Runs on a1/a2/a3 before FRR starts:
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# - creates the dummy0 anycast interface (zebra only configures IPs on
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# interfaces that already exist, it doesn't create them)
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# - starts a tiny HTTP responder bound to the anycast IP, returning this
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# node's hostname, so traffic-test.sh can show which A-node answered
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set -e
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ip link add dummy0 type dummy
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ip link set dummy0 up
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mkdir -p /anycast-web
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hostname > /anycast-web/index.html
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(
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# wait until zebra (per frr.conf) assigns 10.200.200.1 to dummy0
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while ! ip -4 addr show dummy0 | grep -q 10.200.200.1; do
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sleep 1
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done
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exec python3 -m http.server 80 --bind 10.200.200.1 --directory /anycast-web
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) &
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exec /usr/lib/frr/docker-start
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