Antes tarde do que nunca:)
O primeiro argumento em ProgramArguments
(aqui: docker-machine
) precisa ser um caminho absoluto para docker-machine
executável. Para mim, deveria ser assim:
<?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>com.docker.machine.default</string>
<key>EnvironmentVariables</key>
<dict>
<key>PATH</key>
<string>/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin</string>
</dict>
<key>ProgramArguments</key>
<array>
<string>/usr/local/bin/docker-machine</string>
<string>start</string>
<string>default</string>
</array>
<key>RunAtLoad</key>
<true/>
</dict>
</plist>
Determine o seu executando which docker-machine
.