docker.py

import os
import platform

def dockerMenu():

    if platform.system() == 'Windows':
        print("Current OS is Windows. This Code Block is compatible only with Red Hat Enterprise Linux.")
        input("Press Enter to return to menu...")
        return
        
    print("\t\t\tWhat do you want to do? \n")
    print("\t\t1 : Install docker")
    print("\t\t2 : Start docker service")
    print("\t\t3 : Stop docker service")
    print("\t\t4 : View docker info")
    print("\t\t5 : View active containers")
    print("\t\t6 : View all containers")
    print("\t\t7 : View downloaded images")
    print("\t\t8 : Pull an image")
    print("\t\t9 : Launch a container")
    print("\t\t10 : Stop a container")
    print("\t\t11 : Start a container")
    print("\t\t12 : Remove an image")
    print("\t\t13 : Remove a container")
    print("\t\t0 : Exit")
    print()
    while(True):
        option=int(input("\n\tEnter your choice : "))

        if (option==1):
            if not os.system("{} rpm -q docker-ce"):
                print("\tDocker is already installed. Exiting installation...")
            else:
                print("\tInstalling Docker...")
                file=open("/etc/yum.repos.d/docker-ce_install.repo","a")
                dockrepo = "[docker]\nbaseurl=https://download.docker.com/linux/centos/7/x86_64/stable/\ngpgcheck=0\n"
                file.write(dockrepo)
                file.close()
                os.system("yum install docker-ce --nobest")
                    
        elif (option==2):
            os.system("systemctl start docker")

        elif (option==3):
            os.system("systemctl stop docker")

        elif (option==4):
            os.system("docker info")

        elif (option==5):
            os.system("docker ps")
            
        elif (option==6):
            os.system("docker ps -a")

        elif (option==7):
            os.system("docker images")

        elif (option==8):
            image=input("\tEnter image name: ")
            version=input("\tEnter image version (optional): ")
            if image:
                if version != "" :
                    os.system("docker pull {}:{}".format(image,version))
                else :
                    os.system("docker pull {}".format(image))
            else:
                print("\n\tNo image name entered!")

        elif (option==9):
            img = input("\tEnter image name: ")
            ver = input("\tEnter image version (optional): ")
            name = input("\tEnter container name: ")
            if image:
                if version != "" :
                    os.system("docker run -it --name {} {}:{}".format(name,image,version))
                else :
                    os.system("docker run -it --name {} {}".format(name,image))
            else:
                print("\n\tNo image name entered!")
            
        elif (option==10):
            name_id = input("\tEnter container name or id: ")
            if name_id :
                os.system("docker stop {}".format(name_id))
            else :
                print("\tPlease enter a container name/ID!")

        elif (option==11):
            name_id = input("\tEnter container name or ID: ")
            if name_id :
                os.system("docker start {}".format(name_id))
            else :
                print("\tPlease enter a container name/ID!")

        elif(option==12):
            img = input("\tEnter image name: ")
            ver = input("\tEnter image version (optional): ")
            if img:
                if ver != "" :
                    os.system("docker rmi {}:{} --force".format(img,ver))
                else:
                    os.system("docker rmi {} --force".format(img))
            else:
                print("\tPlease enter an image name!")

        elif (option==13):
            name_id = input("\tEnter container name or ID: ")
            if name_id :
                os.system("docker rm {}".format(name_id)) 
            else :
                print("\tPlease enter a container name/ID!")

        elif (option==0):
            break
        else:
            print("\tInvalid choice!\n")
    return