use ping for connectivity checkers

image/overlay/etc/init.d/auth-server

@@ -6,6 +6,22 @@ output_log="/data/auth-server.log"
 
 pidfile="/run/${RC_SVCNAME}.pid"
 
+start_pre() {
+    ebegin "Waiting for network"
+
+    timeout=30
+
+    while [ $timeout -gt 0 ]; do
+        ip route | grep -q default && break
+        sleep 1
+        timeout=$((timeout-1))
+    done
+
+    ip route | grep -q default || return 1
+
+    eend 0
+}
+
 depend() {
     need net
 }

image/overlay/etc/init.d/tsdns

@@ -4,6 +4,22 @@ depend() {
   need docker net
 }
 
+start_pre() {
+    ebegin "Waiting for network"
+
+    timeout=30
+
+    while [ $timeout -gt 0 ]; do
+        ip route | grep -q default && break
+        sleep 1
+        timeout=$((timeout-1))
+    done
+
+    ip route | grep -q default || return 1
+
+    eend 0
+}
+
 command="/usr/bin/tsdns"
 command_background=true 
 pidfile="/run/${RC_SVCNAME}.pid"