■Dockerコマンド
"/bin/sh -c "echo '<html> <head> <title>Amazon ECS App</title> <style>body {margin-top: 40px; background-color: #333;} </style> </head><body> <div style=color:white;text-align:center> <h1>Amazon ECS App</h1> <h2>Congratulations!</h2> </div></body></html>' > /usr/local/apache2/htdocs/index.html && httpd-foreground""