execute only after TS is up

tailscale/rootfs/etc/s6-overlay/s6-rc.d/post-tailscaled/run

@@ -13,21 +13,6 @@ declare login_server
 declare tags
 declare keyexpiry
 
-# Linux optimizations for subnet routers and exit nodes
-# Based on: https://tailscale.com/kb/1320/performance-best-practices#linux-optimizations-for-subnet-routers-and-exit-nodes
-# Note: Changes made via ethtool are not persistent and will be lost after the machine shuts down
-# Note: Executing it before "tailscale up" to avoid warning messages
-# Note: Everything fails silently, we do a best effort only.
-if interface=$( \
-  curl -sf --unix-socket /var/run/tailscale/tailscaled.sock http://local-tailscaled.sock/localapi/v0/check-udp-gro-forwarding \
-  | jq -rc '.Warning' \
-  | sed -nr 's/^UDP GRO forwarding is suboptimally configured on (\S+),.*$/\1/p') \
-  && bashio::var.has_value "${interface}";
-then
-  bashio::log.info "Allow UDP GRO for forwarding on ${interface}"
-  ethtool -K "${interface}" rx-udp-gro-forwarding on rx-gro-list off &> /dev/null || true
-fi
-
 # Default options
 options+=(--hostname "$(bashio::info.hostname)")
 
@@ -125,6 +110,20 @@ done
 
 bashio::log.info "Tailscale is running"
 
+# Linux optimizations for subnet routers and exit nodes
+# Based on: https://tailscale.com/kb/1320/performance-best-practices#linux-optimizations-for-subnet-routers-and-exit-nodes
+# Note: Changes made via ethtool are not persistent and will be lost after the machine shuts down
+# Note: Everything fails silently, we do a best effort only.
+if interface=$( \
+  curl -sf --unix-socket /var/run/tailscale/tailscaled.sock http://local-tailscaled.sock/localapi/v0/check-udp-gro-forwarding \
+  | jq -rc '.Warning' \
+  | sed -nr 's/^UDP GRO forwarding is suboptimally configured on (\S+),.*$/\1/p') \
+  && bashio::var.has_value "${interface}";
+then
+  bashio::log.info "Allow UDP GRO for forwarding on ${interface}"
+  ethtool -K "${interface}" rx-udp-gro-forwarding on rx-gro-list off &> /dev/null || true
+fi
+
 # Delete previously created persistent tailscale serve configuration ONCE
 # After add-on's serve (proxy and funnel) service is a longrun service, we do not modify the serve state permanently
 # This step can be removed in a later version with the file in the data folder also