Erro ao executar comando no Linux - no such file or directory, open '/var/www/package.json'

Os fontes do projeto foram adicionados na seguinte pasta : /tmp/docker

Segue abaixo o erro exibido no console ao executar o comando

/$ docker run -p 8080:3000 -v /tmp/docker:/var/www -w /var/www node npm start npm ERR! path /var/www/package.json npm ERR! code ENOENT npm ERR! errno -2 npm ERR! syscall open npm ERR! enoent ENOENT: no such file or directory, open '/var/www/package.json' npm ERR! enoent This is related to npm not being able to find a file. npm ERR! enoent

npm ERR! A complete log of this run can be found in: npm ERR! /root/.npm/logs/2018-08-03T1327_29_794Z-debug.log

Ao executar o comando *docker inspect *

"Mounts": [ { "Type": "bind", "Source": "/tmp/docker", "Destination": "/var/www", "Mode": "", "RW": true, "Propagation": "rprivate" } ],