diff --git a/README.md b/README.md index b3ebdc8..42eb330 100644 --- a/README.md +++ b/README.md @@ -145,7 +145,9 @@ There doesn't seem to be a way to use docker directly to import files into a con ### Entering a Docker Container -The "official" way to enter a docker container while it's running is to use `nsenter`, which uses [libcontainer under the hood](http://jpetazzo.github.io/2014/03/23/lxc-attach-nsinit-nsenter-docker-0-9/). Using an `sshd` daemon is [considered evil](http://jpetazzo.github.io/2014/06/23/docker-ssh-considered-evil/). +From Docker v.1.3 it is possible to inject a new processes to a running container using [docker-exec](https://docs.docker.com/reference/commandline/cli/#exec). To enter a running container just attach a new shell process to a running container called foo, use: `docker exec -it foo /bin/bash`. + +Prior to v.1.3 this the "official" way to enter a docker container while it's running is to use `nsenter`, which uses [libcontainer under the hood](http://jpetazzo.github.io/2014/03/23/lxc-attach-nsinit-nsenter-docker-0-9/). Using an `sshd` daemon is [considered evil](http://jpetazzo.github.io/2014/06/23/docker-ssh-considered-evil/). Unfortunately, nsenter requires some configuration and installation. If your operating system does not include nsenter (usually in a package named util-linux or similar, although it has to be quite a recent version), the easiest way is probably to install it through docker, as described in the first of the following links: