Stacktray allow you to manage Amazon AWS cloud from the OSX menubar. You can copy addresses, start, stop or reboot instances. And it is opensource!
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Note: you can create a seperate read-only useraccount using IAM. Not all functionality will work, but at least you'll get an idea how Stacktray works. If you need to, you can give the account some more permissions.
点击按钮跳转至开发者官方下载地址...