purpleidea

Dear #mgmtconfig hackers

I have a small prototype of a simple container scheduler built entirely with mcl. It's not 100% polished yet, so I'd like some early design feedback before I publish it.
(Note it schedules "containers" but that resource could be "vm" or something different.)

Please let me know:

(1) If you are using or have used a container scheduler, preferably with not overly complicated needs.
(2) Would be interested in trying a basic container scheduler built with mgmt+mcl.
(3) Preferably have some knowledge of "scheduling" in this context, since I have a few pointed scheduling/work-distribution type questions that I'd love to learn a bit from you on.

purpleidea

# ssh-keygen overwrites the .pub portion without asking
# i guess this is fine, but it surprised me

[root@fedora ~]# /usr/bin/ssh-keygen -t rsa -f /root/.ssh/id_rsa -N ''
Generating public/private rsa key pair.
/root/.ssh/id_rsa already exists.
Overwrite (y/n)? y
Your identification has been saved in /root/.ssh/id_rsa
Your public key has been saved in /root/.ssh/id_rsa.pub
The key fingerprint is:

purpleidea

// Thanks purpleidea for putting this together!
// Why isn't this the default example in the golang docs?
package main

import (
	"compress/gzip"
	"fmt"
	"io"
	"os"
)

purpleidea

# All my gist code is licensed under the terms of the MIT license.

# Video demo: https://www.youtube.com/shorts/0zx4uSBUt_k

# Add this somewhere in your ~/.bashrc

# Use bash-preexec.sh (https://github.com/rcaloras/bash-preexec) to:
# - disable the Ctrl-Z keybinding before printing the prompt
# - enable the Ctrl-Z keybinding before executing a command
#

purpleidea

#!/bin/bash

gdb -p "$1" -batch -ex 'set {short}$rip = 0x050f' -ex 'set $rax=231' -ex 'set $rdi=0' -ex 'cont'

purpleidea

# Firefox 33 was the last version to support SSLv3 (https://blog.mozilla.org/security/2014/10/14/the-poodle-attack-and-the-end-of-ssl-3-0/)
#firefox_version=33.0
# Firefox 51 was the last version to support NPAPI plugins (e.g. Java) (https://support.mozilla.org/en-US/kb/npapi-plugins)
#firefox_version=51.0
# Firefox 56 was the last version to support XPCOM- and XUL-based add-ons (https://blog.mozilla.org/addons/2016/11/23/add-ons-in-2017/)
#firefox_version=56.0

wget https://ftp.mozilla.org/pub/firefox/releases/$firefox_version/linux-x86_64/en-US/firefox-$firefox_version.tar.bz2
tar -xvf firefox-$firefox_version.tar.bz2
mv firefox firefox-$firefox_version

purpleidea

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

• There are always 24 hours in a day.
• February is always 28 days long.
• Any 24-hour period will always begin and end in the same day (or week, or month).

purpleidea

% git clone --depth 1 https://github.com/home-assistant/core

Find "climate" support, then look for components with iot_class matching "local"

% grep -l climate */const.py | awk -F/ '{print $1}' | xargs -n1 sh -c 'jq .iot_class $1/manifest.json | grep -q local && echo "* https://www.home-assistant.io/integrations/$1"' -

purpleidea

#!/bin/bash

unifi_username=USERNAME
unifi_password='PASSWORD'
unifi_controller=https://EXAMPLE.COM:8443
wifi_id=YOUR_WIFI_ID
cookie=/tmp/cookie

curl_cmd="curl -s -S --cookie ${cookie} --cookie-jar ${cookie} --insecure "

purpleidea

Finally reproduced a horrible GNOME shell regression that's been plaguing me and a bunch of friends for a while now.

Step 1)
Open up gedit. Put it on workspace 1 (for example, doesn't matter)

Step 2)
Open up firefox or some other app and put it on workspace 2. Also open up calculator on the same workspace.

Step 3)
Hit some shortcut to open up a new gedit window.