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better port conflict handling

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shocknet-justin 2025-09-25 12:58:30 -04:00
parent 104d77724a
commit 345da9ea6c
1 changed files with 15 additions and 15 deletions
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28
scripts/install_lnd.sh
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@ -100,21 +100,21 @@ install_lnd() {
chmod 600 $USER_HOME/.lnd/lnd.conf
# Port conflict resolution for fresh installs
if [ $lnd_status -eq 0 ]; then
local lnd_port=9735
if ! is_port_available $lnd_port; then
if ! systemctl --user -q is-active lnd.service >/dev/null 2>&1; then
log "Port $lnd_port is in use by another process. Finding an alternative port."
lnd_port_new=$(find_available_port $lnd_port)
log "Configuring LND to use port $lnd_port_new."
# Port conflict resolution.
local lnd_port=9735
if ! is_port_available $lnd_port; then
# The port is occupied. We should intervene if our service is either in a failed state
# or not active at all (which covers fresh installs and failure loops).
if systemctl --user -q is-failed lnd.service 2>/dev/null || ! systemctl --user -q is-active lnd.service 2>/dev/null; then
log "Port $lnd_port is occupied and LND service is not healthy. Attempting to resolve by finding a new port."
lnd_port_new=$(find_available_port $lnd_port)
log "Configuring LND to use new port $lnd_port_new."
# Remove any existing listen entry and add the new one.
sed -i '/^listen=/d' $USER_HOME/.lnd/lnd.conf
echo "listen=:$lnd_port_new" >> $USER_HOME/.lnd/lnd.conf
else
log "Port $lnd_port is in use, but it seems to be by our own lnd service. No changes made."
fi
sed -i '/^listen=/d' $USER_HOME/.lnd/lnd.conf
echo "listen=:$lnd_port_new" >> $USER_HOME/.lnd/lnd.conf
log "LND configuration updated. The service will be restarted by the installer."
else
log "Port $lnd_port is in use by a healthy LND service (assumed to be our own). No changes will be made."
fi
fi