Docker - Pull Image then start or stop

• List image

isaac@isaac-KVM:~$ docker image ls

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

• Pull ubuntu:latest

isaac@isaac-KVM:~$ docker pull ubuntu:latest

latest: Pulling from library/ubuntu

6abc03819f3e: Pull complete

05731e63f211: Pull complete

0bd67c50d6be: Pull complete

Digest: sha256:f08638ec7ddc90065187e7eabdfac3c96e5ff0f6b2f1762cf31a4f49b53000a5

Status: Downloaded newer image for ubuntu:latest

isaac@isaac-KVM:~$ docker image list

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

ubuntu              latest              7698f282e524        4 weeks ago         69.9MB

• Pull nginx:latest

isaac@isaac-KVM:~$ docker pull nginx:latest

latest: Pulling from library/nginx

fc7181108d40: Pull complete

c4277fc40ec2: Pull complete

780053e98559: Pull complete

Digest: sha256:bdbf36b7f1f77ffe7bd2a32e59235dff6ecf131e3b6b5b96061c652f30685f3a

Status: Downloaded newer image for nginx:latest

isaac@isaac-KVM:~$

isaac@isaac-KVM:~$ docker image ls

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

nginx               latest              719cd2e3ed04        4 days ago          109MB

ubuntu              latest              7698f282e524        4 weeks ago         69.9MB

• Access image by ssh. Ex. ubuntu
  Run a container and attache ssh to it
  "-it" flag switch shell into the terminal of the container

isaac@isaac-KVM:~$ docker container run -it ubuntu:latest /bin/bash

root@81977c50304b:/# ll

total 72

drwxr-xr-x   1 root root 4096 Jun 15 14:35 ./

drwxr-xr-x   1 root root 4096 Jun 15 14:35 ../

-rwxr-xr-x   1 root root    0 Jun 15 14:35 .dockerenv*

drwxr-xr-x   2 root root 4096 May 15 14:07 bin/

drwxr-xr-x   2 root root 4096 Apr 24  2018 boot/

drwxr-xr-x   5 root root  360 Jun 15 14:35 dev/

drwxr-xr-x   1 root root 4096 Jun 15 14:35 etc/

drwxr-xr-x   2 root root 4096 Apr 24  2018 home/

drwxr-xr-x   8 root root 4096 May 23  2017 lib/

drwxr-xr-x   2 root root 4096 May 15 14:06 lib64/

drwxr-xr-x   2 root root 4096 May 15 14:06 media/

drwxr-xr-x   2 root root 4096 May 15 14:06 mnt/

drwxr-xr-x   2 root root 4096 May 15 14:06 opt/

dr-xr-xr-x 245 root root    0 Jun 15 14:35 proc/

drwx------   2 root root 4096 May 15 14:07 root/

drwxr-xr-x   1 root root 4096 May 15 21:20 run/

drwxr-xr-x   1 root root 4096 May 15 21:20 sbin/

drwxr-xr-x   2 root root 4096 May 15 14:06 srv/

dr-xr-xr-x  13 root root    0 Jun 15 14:35 sys/

drwxrwxrwt   2 root root 4096 May 15 14:07 tmp/

drwxr-xr-x   1 root root 4096 May 15 14:06 usr/

drwxr-xr-x   1 root root 4096 May 15 14:07 var/

root@81977c50304b:/#

• Press Control+PQ to exit container without terminating it
• List all container by ls

isaac@isaac-KVM:~$ docker container ls

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

4df4b2d4c69e        ubuntu:latest       "/bin/bash"         16 minutes ago      Up 16 minutes                           gracious_jones

81977c50304b        ubuntu:latest       "/bin/bash"         22 minutes ago      Up 22 minutes                           cocky_poincare

isaac@isaac-KVM:~$ docker image ls

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

nginx               latest              719cd2e3ed04        4 days ago          109MB

ubuntu              latest              7698f282e524        4 weeks ago         69.9MB

• Use "run" command, new container will be started

# List current containers

isaac@isaac-KVM:~$ docker container ls

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

4df4b2d4c69e        ubuntu:latest       "/bin/bash"         2 hours ago         Up 2 hours                              gracious_jones

81977c50304b        ubuntu:latest       "/bin/bash"         3 hours ago         Up 3 hours                              cocky_poincare

# Run container and attach ssh

isaac@isaac-KVM:~$ docker container run -it ubuntu:latest /bin/bash

root@28a62f8da2d0:/# isaac@isaac-KVM:~$ docker container ls

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

28a62f8da2d0        ubuntu:latest       "/bin/bash"         7 seconds ago       Up 5 seconds                            affectionate_curran

4df4b2d4c69e        ubuntu:latest       "/bin/bash"         2 hours ago         Up 2 hours                              gracious_jones

81977c50304b        ubuntu:latest       "/bin/bash"         3 hours ago         Up 3 hours                              cocky_poincare

# Image list won't change

isaac@isaac-KVM:~$ docker image ls

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

nginx               latest              719cd2e3ed04        4 days ago          109MB

ubuntu              latest              7698f282e524        4 weeks ago         69.9MB

# Run container and attach ssh

isaac@isaac-KVM:~$ docker container run -it ubuntu:latest /bin/bash

# New container attached

root@20a69a2f40b0:/docker container ls

CONTAINER ID        IMAGE               COMMAND             CREATED              STATUS              PORTS               NAMES

20a69a2f40b0        ubuntu:latest       "/bin/bash"         14 seconds ago       Up 13 seconds                           sharp_zhukovsky

28a62f8da2d0        ubuntu:latest       "/bin/bash"         About a minute ago   Up About a minute                       affectionate_curran

4df4b2d4c69e        ubuntu:latest       "/bin/bash"         2 hours ago          Up 2 hours                              gracious_jones

81977c50304b        ubuntu:latest       "/bin/bash"         3 hours ago          Up 3 hours                              cocky_poincare

# List image, still 2

isaac@isaac-KVM:~$ docker image ls

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE

nginx               latest              719cd2e3ed04        4 days ago          109MB

ubuntu              latest              7698f282e524        4 weeks ago         69.9MB

• Attach shell to terminal of a running container with the docker container exec command. 

isaac@isaac-KVM:~$ docker container ls

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

20a69a2f40b0        ubuntu:latest       "/bin/bash"         3 minutes ago       Up 3 minutes                            sharp_zhukovsky

28a62f8da2d0        ubuntu:latest       "/bin/bash"         4 minutes ago       Up 4 minutes                            affectionate_curran

4df4b2d4c69e        ubuntu:latest       "/bin/bash"         3 hours ago         Up 3 hours                              gracious_jones

81977c50304b        ubuntu:latest       "/bin/bash"         3 hours ago         Up 3 hours                              cocky_poincare

isaac@isaac-KVM:~$ docker container exec -it 20a69a2f40b0 bash

• Use "stop" to stop container by ID or Name

isaac@isaac-KVM:~$ docker container ls

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

20a69a2f40b0        ubuntu:latest       "/bin/bash"         6 minutes ago       Up 6 minutes                            sharp_zhukovsky

28a62f8da2d0        ubuntu:latest       "/bin/bash"         8 minutes ago       Up 7 minutes                            affectionate_curran

4df4b2d4c69e        ubuntu:latest       "/bin/bash"         3 hours ago         Up 3 hours                              gracious_jones

81977c50304b        ubuntu:latest       "/bin/bash"         3 hours ago         Up 3 hours                              cocky_poincare

isaac@isaac-KVM:~$ docker container stop 20a69a2f40b0

20a69a2f40b0

isaac@isaac-KVM:~$ docker container stop affectionate_curran

affectionate_curran

isaac@isaac-KVM:~$ docker container stop 4df4b2d4c69e

4df4b2d4c69e

isaac@isaac-KVM:~$ docker container stop cocky_poincare

cocky_poincare

isaac@isaac-KVM:~$ docker container ls

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

isaac@isaac-KVM:~$