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left4me: wire LOG_LISTENER_{ADDR,BIND} into web.env

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Derives LOG_LISTENER_ADDR from the node's external IPv4 (stripping the
CIDR suffix). The destination MUST be non-loopback — Source silently
drops logaddress UDP destinations in 127.0.0.0/8 (registration
succeeds but no sendto ever happens). LOG_LISTENER_BIND is pinned
to 0.0.0.0:28000 so the listener accepts on every interface,
including the lo-routed packets the kernel uses for same-host
destinations.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
CroneKorkN 2026-05-20 10:13:38 +02:00
parent 14e055a5e0
commit 19d33b56a6
Signed by: cronekorkn
SSH key fingerprint: SHA256:v0410ZKfuO1QHdgKBsdQNF64xmTxOF8osF1LIqwTcVw
1 changed files with 6 additions and 0 deletions
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6
bundles/left4me/files/etc/left4me/web.env.mako
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@ -6,3 +6,9 @@ SESSION_COOKIE_SECURE=true
LEFT4ME_PORT_RANGE_START=${node.metadata.get('left4me/port_range_start')} LEFT4ME_PORT_RANGE_START=${node.metadata.get('left4me/port_range_start')}
LEFT4ME_PORT_RANGE_END=${node.metadata.get('left4me/port_range_end')} LEFT4ME_PORT_RANGE_END=${node.metadata.get('left4me/port_range_end')}
STEAM_WEB_API_KEY=${node.metadata.get('left4me/steam_web_api_key')} STEAM_WEB_API_KEY=${node.metadata.get('left4me/steam_web_api_key')}
# Log listener destination — MUST be non-loopback because Source silently
# drops logaddress destinations in 127.0.0.0/8. Derived from the node's
# external IPv4; kernel routes same-host traffic via lo internally but the
# destination IP in the packet header must not literally be 127.x.
LOG_LISTENER_ADDR=${node.metadata.get('network/external/ipv4').split('/')[0]}:28000
LOG_LISTENER_BIND=0.0.0.0:28000