1. apt-get install util-linux

1. cat /home/shell/docker-enter

1. #!/bin/sh
2. if [ -e $(dirname "$0")/nsenter ]; then
3. # with boot2docker, nsenter is not in the PATH but it is in the same folder
4. NSENTER=$(dirname "$0")/nsenter
5. else
6. NSENTER=nsenter
7. fi
8. if [ -z "$1" ]; then
9. echo "Usage: `basename "$0"` CONTAINER [COMMAND [ARG]...]"
10. echo ""
11. echo "Enters the Docker CONTAINER and executes the specified COMMAND."
12. echo "If COMMAND is not specified, runs an interactive shell in CONTAINER."
13. else
14. PID=$(docker inspect --format "{{.State.Pid}}" "$1")
15. if [ -z "$PID" ]; then
16. exit 1
17. fi
18. shift
19. OPTS="--target $PID --mount --uts --ipc --net --pid --"
20. if [ -z "$1" ]; then
21. # No command given.
22. # Use su to clear all host environment variables except for TERM,
23. # initialize the environment variables HOME, SHELL, USER, LOGNAME, PATH,
24. # and start a login shell.
25. "$NSENTER" $OPTS su - root
26. else
27. # Use env to clear all host environment variables.
28. "$NSENTER" $OPTS env --ignore-environment -- "$@"
29. fi
30. fi

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
b281316df403 percona/pmm-server "/opt/entrypoint.sh" 16 hours ago Up 16 hours 0.0.0.0:2233->22/tcp, 0.0.0.0:8077->80/tcp, 0.0.0.0:8443->443/tcp pmm-server
5af9de62d711 percona/pmm-server "/bin/true" 16 hours ago Created pmm-data

1. sh /home/shell/docker-enter (CONTAINER ID) or (NAMES)
2. OR
3. chown +x /home/shell/docker-enter
4. /home/shell/docker-enter (CONTAINER ID) or (NAMES)

1. /home/shell/docker-enter b281316df403
2. OR
3. /home/shell/docker-enter pmm-server