Introdução ao Docker
Tim Sangster
Software Engineer @ DataCamp
| Comando | Uso |
|---|---|
| nano <file-name> | Abre <file-name> no editor nano |
| touch <file-name> | Cria um arquivo vazio com esse nome |
| echo "<text>" | Imprime <text> no console |
| <command> >> <file> | Anexa a saída de <command> ao final de <file> |
| <command> -y | Responde "sim" automaticamente a todos os prompts de <command> |
docker.
docker run <image-name>
docker run hello-world
Hello from Docker!
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon created a new container from the hello-world image which runs
the executable that produces the output you are currently reading.
3. The Docker daemon streamed that output to the Docker client, which sent it to
your terminal.
docker run <image-name>
docker run ubuntu
repl@host:/# docker run ubuntu
repl@host:/#
Adicionar -it ao docker run dá um shell interativo no contêiner iniciado.
docker run -it <image-name>
docker run -it ubuntu
docker run -it ubuntu
repl@container:/#
repl@container:/# exit
exit
repl@host:/#
Adicionar -d ao docker run executa o contêiner em segundo plano, devolvendo o controle do shell.
docker run -d <image-name>
docker run -d postgres
repl@host:/# docker run -d postgres
4957362b5fb7019b56470a99f52218e698b85775af31da01958bab198a32b072
repl@host:/#
docker ps
repl@host:/# docker ps
CONTAINER ID IMAGE COMMAND CREATED
4957362b5fb7 postgres "docker-entrypoint.s…" About a minute ago
STATUS PORTS NAMES
Up About a minute 5432/tcp awesome_curie
docker stop <container-id>
repl@host:/# docker stop cf91547fd657
cf91547fd657
| Uso | Comando |
|---|---|
| Iniciar um contêiner | docker run <image-name> |
| Iniciar interativo | docker run -it <image-name> |
| Iniciar em segundo plano | docker run -d <image-name> |
| Listar em execução | docker ps |
| Parar um contêiner | docker stop <container-id> |
Introdução ao Docker