DockerBasics

DockerCommands.txt

Docker  Basic 

Sudo Docker run --ImageName 

Sudo Docker Ps (shows all current running docker containers) 
 	`		Also Gets Container Id. 

Docker ps --all 

docker create fileName 
-creates container 
to start container must run 
docker start -a (containerId) 
-a makes docker watch for output and print to machine terminal 


docker system prune
WARNING! This will remove:
        - all stopped containers
        - all networks not used by at least one container
        - all dangling images
        - all build cache

docker logs - Give records from containers 

docker- stop ( stops container on own time) 
docker-kill (kills it ASAP no questions asked


sudo docker redis-server ( will Start Running Server, but how will we issue commands 
if that terminal is already running? 

We Will Run Command 
Docker ps to get ID of redis server running in docker 
We will then run 

~$ docker exec -it 80ad76b6ab42 redis-cli


-it Flag Very Important in the world of docker 

is two flags -i -t 

-i attaches terminal to standard Inn Redis CLI 
-t Flag Makes sure all the text entered is formatted and a little more behind the scenes 

How to Open Shell in Running Container 

sudo run docker ps 
get id oc container u want 
docker exec -it (id) sh 
sometimes you can use bash as well 


Docker run -it sh 
Empty Shell to poke around 

 sudo docker run -it (imageName)  sh

downside- Can not run anyother process 

may want to have running process and attach shell to that process with exec command* 
See above* 


If you run two containers of the same instance such as busybox ETC 
they are separate unless connected. each instance has different files.