Executando a aplicação

O container possui isolamento de processo.

$ ps -ef

$ cd /home
$ ls
marcelo

root@4a7b24d0fc57:/# ps -aux
USER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root           1  0.0  0.0   4588  3872 pts/0    Ss   17:27   0:00 /bin/bash
root        3916  0.0  0.0   7888  4060 pts/0    R+   17:56   0:00 ps -aux

root@4a7b24d0fc57:/# cd /home
root@4a7b24d0fc57:/home# ls
ubuntu

Copiar o projeto do ambiente local para o container:

$ pwd
/tmp/devops-conversao-temperatura/src

$ docker container ls
CONTAINER ID   IMAGE      COMMAND                  CREATED             STATUS             PORTS                                                  NAMES
4a7b24d0fc57   ubuntu     "/bin/bash"              31 minutes ago      Up 31 minutes      0.0.0.0:8080->8080/tcp, :::8080->8080/tcp              musing_hypatia

$ docker container cp . 4a7b24d0fc57:/app
Successfully copied 20.9MB to 4a7b24d0fc57:/app

root@4a7b24d0fc57:/# pwd
/app
root@4a7b24d0fc57:/# ls
Dockerfile  config  convert.js  node_modules  package-lock.json  package.json  server.js  test  views

root@4a7b24d0fc57:/# npm install
root@4a7b24d0fc57:/# node server.js
Servidor rodando na porta 8080