DevOps

Question 1: What is docker container with image?

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Inside a container all the necessary files/libraries/code to execute a program will be present.

  • Running instance of image is called container
    • Created a container
    • started a container
    • stopped a container

docker create --name rajuc httpd
548886386f8b3e430db0957ee104b53f004fd67f55044252d6566c5d3f25f926

docker ps | grep rajuc
548886386f8b   httpd     "httpd-foreground"   4 minutes ago        Up 14 seconds            80/tcp    rajuc

root@ip-172-31-28-155:/home/ubuntu# docker stop rajuc
rajuc
root@ip-172-31-28-155:/home/ubuntu# docker ps | grep rajuc
root@ip-172-31-28-155:/home/ubuntu# docker ps -a | grep rajuc
548886386f8b   httpd          "httpd-foreground"       12 minutes ago       Exited (0) 22 seconds ago                   rajuc