Nsenter
nsenter
wget https://www.kernel.org/pub/linux/utils/util-linux/v2.32/util-linux-2.32.tar.gz
tar -zxf util-linux-2.32.tar.gz && cd util-linux-2.32
./configure
make
# make && make install,可能影响操作系统底层工具
cp nsenter /usr/local/bin/
docker-enter
#!/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
最后修改 2023-03-11: split into more parts (54b443e)