to get an image form docket pull use the (docker pull image name)
and
(docker images) to see the images
to run that image use the command name (docker run -it -d imagename) then only
container is formed.
here=-it means iterative with terminal
and -d means deatched mode i.e run container in background even i close the
terminal or
anything
the ps command to show the active process in our system (docker ps) ----to show the
containers
if there are any stopped containers they can be seen by adding the -a flag then
(docker ps -a)
to enter into a [container] we have the command named (docker exec -it containerid
bash)
and click enter
docker stop containerid and then only we can delete
if we want to delete the running container then (docker rm -f containerid)
docker kill containerid
docker rm containerid (to remove the stopped container )
docker rmi imageid (to remove an images )
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SAVING CHANGES INTO A CONTAINER:-docke
(docker commit containerid newimagename) --> this creates a new image and
then run
the container
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TO REMOVE ALL THE CONTAINERS AT A ONE TIME:
docker rm -f $(docker ps -a -q) ----which remove all containers at one time.
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to check whether our apache2 server is runnning or not use this command
(service apache2 status) (gives either running or not)
if it is not running
(service apache2 start)
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(docker run -it -p 82:80 -d charansai1432/apache)-------------to send it to
docker-
hub
here -p = port mapping apt
82:80 =----- indicates that 82 port of our local system is communicating with
the port number 80 to the container
NOTE:- HERE we taken port as 80 ------ due to apache2 server communicate with port
no. 80
charansai1432/newimagename---------which is used to push into our docker hub
account.
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