UFGD - SECOM - Docker

Primeiros passos

O famoso Hello World

$ docker run hello-world

Baixando uma docker image

$ docker pull alpine

$ docker run alpine ls -l
total 48
drwxr-xr-x    2 root     root          4096 Mar  2 16:20 bin
drwxr-xr-x    5 root     root           360 Mar 18 09:47 dev
drwxr-xr-x   13 root     root          4096 Mar 18 09:47 etc
drwxr-xr-x    2 root     root          4096 Mar  2 16:20 home
drwxr-xr-x    5 root     root          4096 Mar  2 16:20 lib
......
......

Listando containers

$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

$ docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                      PORTS               NAMES
36171a5da744        alpine              "/bin/sh"                5 minutes ago       Exited (0) 2 minutes ago                        fervent_newton
a6a9d46d0b2f        alpine             "echo 'hello from alp"    6 minutes ago       Exited (0) 6 minutes ago                        lonely_kilby
ff0a5c3750b9        alpine             "ls -l"                   8 minutes ago       Exited (0) 8 minutes ago                        elated_ramanujan
c317d0a9e3d2        hello-world         "/hello"                 34 seconds ago      Exited (0) 12 minutes ago                       stupefied_mcclintock

Entrando dentro do container

$ docker run -it alpine /bin/sh
/ # ls
bin      dev      etc      home     lib      linuxrc  media    mnt      proc     root     run      sbin     sys      tmp      usr      var
/ # uname -a
Linux 97916e8cb5dc 4.4.27-moby #1 SMP Wed Oct 26 14:01:48 UTC 2016 x86_64 Linux

Parando um container

$ docker stop nomeOuIdDoContainer

Removendo um container

$ docker rm nomeOuIdDoContainer

Listando docker images

$ docker image ls

Removendo uma docker image

$ docker rmi tagDaImagem

Limpando o sistema

$ docker system prune

WebApp simples

$ docker run -d dockersamples/static-site

$ docker ps
CONTAINER ID        IMAGE                  COMMAND                  CREATED             STATUS              PORTS               NAMES
a7a0e504ca3e        dockersamples/static-site   "/bin/sh -c 'cd /usr/"   28 seconds ago      Up 26 seconds       80/tcp, 443/tcp     stupefied_mahavira