start new:
tmux
start new with session name:
tmux new -s myname
A lot of people land when trying to find out how to calculate CPU usage metric correctly in prometheus, myself included! So I'll post what I eventually ended up using as I think it's still a little difficult trying to tie together all the snippets of info here and elsewhere.
This is specific to k8s and containers that have CPU limits set.
To show CPU usage as a percentage of the limit given to the container, this is the Prometheus query we used to create nice graphs in Grafana:
sum(rate(container_cpu_usage_seconds_total{name!~".*prometheus.*", image!="", container_name!="POD"}[5m])) by (pod_name, container_name) /
In this document I am using Sass's SCSS syntax. You can choose to use the indented syntax in sass, if you prefer it, it has no functional differences from the SCSS syntax.
For Less, I'm using the JavaScript version because this is what they suggest on the website. The ruby version may be different.
This list is based on aliases_spec.rb.
You can see also Module: RSpec::Matchers API.
matcher | aliased to | description |
---|---|---|
a_truthy_value | be_truthy | a truthy value |
a_falsey_value | be_falsey | a falsey value |
be_falsy | be_falsey | be falsy |
a_falsy_value | be_falsey | a falsy value |
Kinesis Freestyle (Terrible key switches. Mushy and un-lovable)
Kinesis Freestyle Edge (Traditional layout with too many keys, mech switches, proably too big to be tented easily/properly)
Matias Ergo Pro (Looks pretty great. Have not tried.)
ErgoDox Kit (Currently, my everyday keyboard. Can buy pre-assembled on eBay.)
ErgoDox EZ (Prolly the best option for most people.)
#! /usr/bin/env stack | |
-- stack --resolver lts-18.8 script | |
{-# LANGUAGE OverloadedStrings #-} | |
{- | |
This is a handy illustration of converting between five of the commonly-used | |
string types in Haskell (String, ByteString, lazy ByteString, Text and lazy | |
Text). |
Save these files as ~/.config/systemd/user/some-service-name.*
Run this now and after any modifications: systemctl --user daemon-reload
Try out the service (oneshot): systemctl --user start some-service-name
Check logs if something is wrong: journalctl -u --user-unit some-service-name
Start the timer after this user logs in: systemctl --user enable --now some-service-name.timer
This is a story about how I tried to use Go for scripting. In this story, I’ll discuss the need for a Go script, how we would expect it to behave and the possible implementations; During the discussion I’ll deep dive to scripts, shells, and shebangs. Finally, we’ll discuss solutions that will make Go scripts work.
While python and bash are popular scripting languages, C, C++ and Java are not used for scripts at all, and some languages are somewhere in between.
QUESTION 1 | |
Which SysV init configuration file should be modified to disable the ctrl-alt-delete key combination? | |
A. /etc/keys | |
B. /proc/keys | |
C. /etc/inittab | |
D. /proc/inittab | |
E. /etc/reboot | |
QUESTION 2 | |
Which of the following information is stored within the BIOS? (Choose TWO correct answers.) |
Out of the box, the MicroK8s distribution of ingress-nginx installed as the MicroK8s addon ingress binds to ports 80+443 on the node's IP address using a hostPort, as we can see here:
microk8s kubectl -n ingress describe daemonset.apps/nginx-ingress-microk8s-controller
Name: nginx-ingress-microk8s-controller
Selector: name=nginx-ingress-microk8s