In which case: 1. The man pages, to me, imply that I should be able to get everything that ‘status' shows using ‘show' because it says:
"This function is intended to generate human-readable output. If you are looking for computer-parsable output, use show instead.” (and vice versa) This sentence may need a revision. 2. So how do I get at the IP address of the container in a way that is easily parseable? Cheers, Johannes. > On Jun 17, 2015, at 1:42, Lennart Poettering <lenn...@poettering.net> wrote: > > On Wed, 17.06.15 10:13, David Herrmann (dh.herrm...@gmail.com > <mailto:dh.herrm...@gmail.com>) wrote: > >> Hi >> >> On Wed, Jun 17, 2015 at 5:53 AM, Johannes Ernst >> <johannes.er...@gmail.com> wrote: >>> Are those supposed to produce the same information, just formatted >>> differently (man vs machine per man page)? >>> >>> I’m failing to convince ‘show’ to give me the container’s IP address, while >>> ‘status’ has all of them. >> >> As with almost all *ctl tools in systemd, 'show' is used to print DBus >> properties of the object in question. 'status' on the other hand >> prints a human-readable, pre-selected set of attributes of an object. >> >> With machinectl, the 'show' command must be used with a parameter. So >> `machinectl --all show $machine` should contain the same information >> as `machinectl status $machine`, and even more. If that's not the >> case, please post an example. > > Well, "machinectl status" also shows the cgroup tree, which > "machinectl show" currently does not. > > The IP addresses are not exposed as property, they are exposed > as method, since acquiring them is relatively complex due to > transitioning into the containers... That means they show up in > "machinectl status", because that code explicitly calls that method, > but not in "machinectl show" which shows the plain props, and nothing > else. > > Note that "systemctl show" and "systemctl status" have a similar > relationship as "machinectl show" and "machinectl status". > > Lennart > > -- > Lennart Poettering, Red Hat
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