felixhummel

>>> def iter_stuff():
...     yield 1
...     yield 2
...     yield 4
... 
>>> next(iter_stuff())
1
>>> next(iter_stuff())
1
>>> next(iter_stuff())

felixhummel

postgres=# CREATE TABLE x AS SELECT '{"foo": 1, "bar": 2}'::jsonb AS payload;
SELECT 1

postgres=# SELECT * FROM x;
       payload
----------------------
 {"bar": 2, "foo": 1}
(1 row)

postgres=# SELECT ARRAY[payload->'foo', payload->'bar']::float[]::vector FROM x;

felixhummel

/dev/disk/by-id/ata-TOSHIBA_MG08ACA16TE_14W0A05NFWTG:

ATA device, with non-removable media
	Model Number:       TOSHIBA MG08ACA16TE                     
	Serial Number:      14W0A05NFWTG
	Firmware Revision:  4305    
	Transport:          Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Standards:
	Used: unknown (minor revision code 0x006d) 
	Supported: 10 9 8 7 6 5 

felixhummel

The MIT License (MIT)

Copyright (c) 2015 Felix Hummel

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:

felixhummel

# first, allow user services to be started on boot
# you only need to do this once
sudo loginctl enable-linger $USER

# this must be set to "no" (the default)
grep KillUserProcesses /etc/systemd/logind.conf

# create your user service file
mkdir -p ~/.config/systemd/user

felixhummel

#!/bin/bash
set -euo pipefail

[[ $UID == 0 ]]

export BORG_REPO=/media/backup/borg/foo
export BORG_PASSPHRASE="TODO change this to a secret passphrase"

borg create \
  --filter AME \

felixhummel

server {
    listen       80 default_server;

    location / {
        default_type text/plain;
        return 418 "418 I'm a teapot\n";
    }
}

felixhummel

Problem

ConfigMap changes do not result in deployment changes (which makes sense generally)

Solution

If you change the configuration of your app, then you want the Deployment to restart your pods.

• use configMapRef and secretRef to keep things clean: https://gist.github.com/troyharvey/4506472732157221e04c6b15e3b3f094#file-deployment-yml-L26-L29
• make configmap and secret immutable, update deployment.yml accordingly https://stackoverflow.com/a/40624029/241240
• alternatively use kubectl rollout restart (if you catch your configmap / secrets changing)

felixhummel

#!/bin/bash
# License: WTFPL
set -euo pipefail

# "--diff-filter d" excludes deleted files from this list
files=$(git diff --cached --diff-filter d --name-only -- "*.tf")

for f in $files; do
  terraform fmt "$f"
  git add "$f"

felixhummel

LULZ=/tmp/compose-lulz
foolulz=$LULZ/foo/lulz
barlulz=$LULZ/bar/lulz
mkdir -p $foolulz $barlulz

cat <<'EOF' > $foolulz/docker-compose.yml
version: '3.7'

services:
  app: