delete_container.sh

#!/usr/bin/env bash

set -e

help()
{
    echo "Usage: $0 [[-c | --container]"
    echo "           --]"
    echo ""
    echo "Script Options:"
    echo "  --container, -c  required"
    echo "    the name of container to be deleted"
    echo "  --"
    echo "    A seperator between script options and commands"

    exit 2
}

SHORT=c:,h
LONG=container:,help
OPTS=$(getopt --alternative --name delete_container --options $SHORT --longoptions $LONG -- "$@")

VALID_ARGUMENTS=$# # Returns the count of arguments that are in short or long options

if [ "$VALID_ARGUMENTS" -eq 0 ]; then
  help
fi

eval set -- "$OPTS"

while :
do
  case "$1" in
    -c | --container )
            CONTAINER="$2"
            shift 2
            ;;
    -h | --help)
            help
            ;;
    --)
            shift;
            break
            ;;
    *)
            echo "Unexpected option: $1"
            help
            ;;
    esac
done


container_cnt=$(docker ps -a | grep "$CONTAINER" | wc -l)
echo "Existing $CONTAINER count: $container_cnt"

if [ $container_cnt -gt 0 ];
then
    echo "Delete container($CONTAINER):"
    docker ps -a | \
        tail -n +2 | \
        grep "$CONTAINER" | \
        awk '{print $1}' | \
        xargs docker rm -f

    if [ ! $? -eq 0 ];
    then
        echo "Error in delete container!"
    fi
else
    echo "Container not exist, not need to delete."
fi