mjf

# Telegraf configuration to collect per-CPU cycles and instructions
# using perf(1).  You can then calculate CPI / IPC from the metrics.

# If Telegraf is not running as UID 0 (aka "root") you can either use
# sudo(1) with the perf(1) command, raise Telegraf capability, or set
# kernel.perf_event_paranoid = 0.  But be warned: "Hic sunt dracones".

[[inputs.exec]]

  name_prefix = "cpu_"

mjf

# Telegraf configuration to collect Pressure Stall Information (PSI)

[[inputs.file]]
  name_override = "pressure_cpu"
  # interval = "5s"
  files = ["/proc/pressure/cpu"]
  data_format = "grok"
  grok_patterns = [
    "%{NOTSPACE:type:tag} avg10=%{NUMBER:avg10:float} avg60=%{NUMBER:avg60:float} avg300=%{NUMBER:avg300:float} total=%{NUMBER:total:int}"
  ]

mjf

#! /bin/sh

# Encode and decode Crockford's BASE32
# Copyright (C) 2022 Matous Jan Fialka, <https://mjf.cz/>
# Released under the terms of the "MIT" license

# DO NOT USE FOR ANY REASON! This was just for some quick testing.

use() {
	printf -- '%s -d <enc> | <dec>\n' "${0##*/}"

mjf

with
  /* first generate random metric serie for past 1 day, 360 per hour */
  series as
  (
    select
      cast(
        now() - '1 day'::interval + n*'10 seconds'::interval
        as timestamp with time zone
      ),
      n*random()::double precision

mjf

Postgres blogs

(Persons are alphabeticaly sorted by family name, the rest is sorted by name.)

Personal

• Mark Andruth
• Lætitia Avrot
• Haki Benita
• Josh Berkus

mjf

set background=dark

hi clear
if exists('syntax_on')
 syntax reset
endif

let g:colors_name = 'mjf'

hi Normal ctermfg=250

mjf

set cmd:prompt '\U \S\n$ '
set ftp:port-range 21000-21999
set ftp:sync-mode off
set ssl:verify-certificate off

debug 4

alias ledit 'local edit'
alias lls 'local ls'
alias nocertverify 'set ssl:verify-certificate off'

mjf

#! /bin/sh
# DIP - Docker IP (petite tool to list container IP addresses)
# Copyright (C) 2021 Matous Jan Fialka, <https://mjf.cz>
# Released under the terms of the "MIT License"

printf -- '%-12s  %-47s  %-15s\n' 'CONTAINER ID' 'NAME' 'IP ADDRESS'
printf -- '------------  '
printf -- '-----------------------------------------------  '
printf -- '---------------\n'

mjf

-- Create login role, schema and security definer function for PgBouncer
-- Copyright (C) 2021 Matous Jan Fialka, <https://mjf.cz/>
-- Released under the terms of the "MIT License"

-- PER CLUSTER

CREATE ROLE
   pgbouncer
WITH
   LOGIN

mjf

cp [email protected] /etc/systemd/system
systemctl daemon-reload
systemctl enable [email protected]
cp rclone@restic /etc/sysconfig
vi /etc/sysconfig/rclone@restic
systemctl start rclone@restic
journalctl -xefurclone@restic