On Feb 21, 2020, at 7:14 PM, Brooke Storm
<bstorm(a)wikimedia.org> wrote:
I get what you mean now. This is a container launched by Kubernetes with the webservice
wrapper on a daemon in the cluster, so I don't consider it likely that passing that
through to the docker daemon would be possible. Configuring docker to work differently
across the fleet is more likely (which we could consider if you open a Phabricator task
for it). I've never used the key combo to detach from a container, so I'd not
encountered that issue. Overall, I'm getting that this is a clash with tmux
keybindings, right?
On a task, we can poke at the issue a bit, and maybe record a solution, either local to
your tool account or in general.
On 2/21/20 3:19 PM, Roy Smith wrote:
Hmmm, yeah, I get the desire to keep production
containers as minimal as possible. I had asked a while ago if it was possible to get
Python 3.7 on the bastion hosts, but was told that's not feasible because of the way
the distros are packaged. So, I seem to be stuck with having to flip back and forth
between two hosts, which is a really awkward way to work.
As for the control-p issue, I believe the behavior I'm seeing is described in this
stack overflow article
<https://stackoverflow.com/questions/41820108/ctrl-p-and-ctrl-n-behaving-unexpectedly-under-docker>.
But that describes a fix using docker commands, and I haven't figured out how to map
that to the webservice wrapper. To answer your question, though, my connection stack is:
Terminal window on MacOS
ssh -t
dev.tools.wmflabs.org <http://dev.tools.wmflabs.org/> tmux new -As
spi-tools-dev
become spi-tools-dev
webservice --backend=kubernetes python3.7 shell
On Feb 21, 2020, at 12:35 PM, Brooke Storm
<bstorm(a)wikimedia.org <mailto:bstorm@wikimedia.org>> wrote:
Hello Roy,
The container environment for webservice shell is the same image as the runtime
containers for a service, so I'd rather not support ssh in the containers because they
need to be light-weight, limited and including that would raise some interesting security
issues in the cluster otherwise. The workflow does need some work, though, and we are
experimenting with ways to make it more sensible.
On the CTRL-P issue, I'm not entirely sure what you mean and might need more
information about your setup. That usually is dictated by the shell you are using rather
than anything to do with Kubernetes. In some shells, I know you need to use SHIFT-CTRL-P.
I have no issues on my Mac. What client are you using the connect via SSH? I might be able
to recreate the issue and figure out a fix.
--
Brooke Storm
SRE
Wikimedia Cloud Services
bstorm(a)wikimedia.org <mailto:bstorm@wikimedia.org>
IRC: bstorm_
On 2/21/20 7:40 AM, Roy Smith wrote:
The bastion hosts don't have python3.7, and
the k8s hosts don't have ssh, so "git pull" and "git push"
don't work. Which means I need to keep flipping back and forth between the two during
development. Is there some way to get ssh working on the k8s hosts, so I can do
everything in one place?
The other annoyance is that when you connect with "webservice --backend=kubernetes
python3.7 shell", the connection eats control-p's Is there some way to turn that
off, or at least reconfigure it to use a different command character?
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Brooke Storm
SRE
Wikimedia Cloud Services
bstorm(a)wikimedia.org <mailto:bstorm@wikimedia.org>
IRC: bstorm_
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