优化Dockerfile使用

docker_entrypoint.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+var1=$1
+
+#set -x
+
+case $var1 in
+"bash" | "sh")
+  echo $var1
+  exec "$@"
+  ;;
+
+"tool")
+  /app/anylink "$@"
+  ;;
+
+*)
+  sysctl -w net.ipv4.ip_forward=1
+  iptables -t nat -A POSTROUTING -s "${IPV4_CIDR}" -o eth0+ -j MASQUERADE
+  #  iptables -nL -t nat
+
+  /app/anylink "$@"
+  ;;
+esac