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Reserve Port Range for per-instance PG Bouncer #35

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Merged
furkansahin merged 1 commit into from
Jun 8, 2026
Merged

Reserve Port Range for per-instance PG Bouncer #35

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10 changes: 10 additions & 0 deletions common/setup_base.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -96,6 +96,16 @@ popd > /dev/null
echo "[setup_base.sh] Package cache contents:"
ls -la "$PACKAGE_CACHE"/*

echo "=== [setup_base.sh] Reserving inbound service ports (50001-50032) ==="

cat > /etc/sysctl.d/91-pgbouncer-per-instance-reserved-ports.conf <<'EOF'
# Reserve inbound pgbouncer ports from ephemeral allocation, so outbound connections can't grab one
# Allocating 4x current used for future use
# This sysctl is a single scalar: writing replaces the whole list, never appends.
# Keep this file the sole owner; add future ports to the line below, not a new drop-in.
net.ipv4.ip_local_reserved_ports = 50001-50032
EOF

echo "=== [setup_base.sh] Setting up users and groups ==="

# Create users
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