docker-enter脚本

#!/bin/sh

if [ -e$(dirname "$0")/nsenter ];then

    # with boot2docker, nsenter is not in the PATH but it is in the same folder

    NSENTER=$(dirname "$0")/nsenter

else

    NSENTER=nsenter

fi

if [ -z"$1" ];then

    echo "Usage: `basename "$0"`CONTAINER [COMMAND [ARG]...]"

    echo ""

    echo "Enters the Docker CONTAINER and executes the specified COMMAND."

    echo "If COMMAND is not specified, runs an interactive shell in CONTAINER."

else

    PID=$(docker inspect --format"{{.State.Pid}}" "$1")

    if [ -z"$PID" ];then

        exit 1

    fi

    shift

    OPTS="--target $PID--mount --uts --ipc --net --pid --"

    if [ -z"$1" ];then

        # No command given.

# Use su to clear all host environment variables except for TERM,

# initialize the environment variables HOME, SHELL, USER, LOGNAME, PATH,

# and start a login shell.

        "$NSENTER" $OPTS su - root

else

        # Use env to clear all host environment variables.

        "$NSENTER" $OPTS env --ignore-environment --"$@"

    fi

fi

非原创，暂时记不起链接