socat daemon on OSX for Docker

socat-config.sh

#!/bin/bash

#brew install socat
# socat TCP-LISTEN:2377,reuseaddr,fork UNIX-CONNECT:/var/run/docker.sock

#file: docker.socat_listener
# <?xml version="1.0" encoding="UTF-8"?>
# <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
# <plist version="1.0">
#     <dict>
#         <key>Label</key>
#         <string>docker.socat_listener</string>
#         <key>Disabled</key>
#         <false/>
#         <key>RunAtLoad</key>
#         <true/>
#         <key>KeepAlive</key>
#         <true/>
#         <key>ProgramArguments</key>
#         <array>
#             <string>/usr/local/bin/socat</string>
#             <string>-d</string>
#             <string>TCP-LISTEN:2377,reuseaddr,fork</string>
#             <string>UNIX:/var/run/docker.sock</string>
#         </array>
#         <key>StandardErrorPath</key>
#     	<string>/Library/Logs/socat_docker.log</string>
#     	<key>StandardOutPath</key>
#     	<string>/Library/Logs/socat_docker.log</string>
#         <key>StartInterval</key>
#        <integer>30</integer>
#     </dict>
# </plist>

# copy plist file to LaunchDaemons folder
#cd /Library/LaunchDaemons
#sudo chown root:wheel docker.socat_listener.plist
#sudo launchctl load se.ivankrizsan.socat_launcher.plist
# verify service with url:  http://127.0.0.1:2377/version

Solved the problem: I added the range-parameter to my socat arguments in launch daemon script. This leads to an error! Don't use the range-parameter in TCP-LISTEN on Mac OS!