mjackson

#!/bin/sh

# This script should be saved in a git repo as a hook file, e.g. .git/hooks/pre-receive.
# It looks for scripts in the .git/hooks/pre-receive.d directory and executes them in order,
# passing along stdin. If any script exits with a non-zero status, this script exits.

script_dir=$(dirname $0)
hook_name=$(basename $0)

hook_dir="$script_dir/$hook_name.d"

nfarrar

#!/usr/bin/env python

import argparse
import logging
import logging.handlers

parser = argparse.ArgumentParser(__file__,
                                 description="A syslog message generator")

parser.add_argument("--address",

pydevops

HTTP tunnel

• https://en.wikipedia.org/wiki/HTTP_tunnel

On prem k8s cluster set up with bastion vm

1. Create a bastion vm in your data center or in cloud with connectivity set up (usually vpn) to the on prem data center.
2. Install tinyproxy on the bastion vm and pick a random port as it would be too easy for spam bot with default 8888, set up as systemd service according to https://nxnjz.net/2019/10/how-to-setup-a-simple-proxy-server-with-tinyproxy-debian-10-buster/. Make sure it works by validating with curl --proxy http://127.0.0.1:<tinyproxy-port> https://httpbin.org/ip. And I don't use any user authentication for proxy, so I locked down the firewall rules with my laptop IP/32.
3. Download the kubeconfig file for the k8s cluster to your laptop
4. From your laptop, run

HTTPS_PROXY=<bastion-external-ip>:<tinyproxy-port> KUBECONFIG=my-kubeconfig kubectl get nodes

pkieltyka

## 
## HTTP Router benchmarks -- Nov 29, 2020 with Go 1.15.5 on Linux AMD 3950x
##
## This benchmark suite is based on https://github.com/julienschmidt/go-http-routing-benchmark
## using the most up-to-date version of each pkg as of today. Each router has their own
## pros and cons, so consider the designs of each router to suit your application.
##
## *NOTE*: the memory reports below by the go benchmark tool look quite wrong, as there must
## be a bug somewhere in the go bench tool with the Go version I'm running. I will re-run
## with future versions and report back. However, in general you'll want to look at the "ns/op"

s3rj1k

# For recent versions of Ubuntu:
 - https://www.pugetsystems.com/labs/hpc/ubuntu-22-04-server-autoinstall-iso/

# Docs:
 - https://wiki.ubuntu.com/FoundationsTeam/AutomatedServerInstalls
 - https://wiki.ubuntu.com/FoundationsTeam/AutomatedServerInstalls/ConfigReference
 - https://cloudinit.readthedocs.io/en/latest/topics/datasources/nocloud.html
 - https://discourse.ubuntu.com/t/please-test-autoinstalls-for-20-04/15250/53

# Download ISO Installer:

rothgar

# Idempotent way to build a /etc/hosts file with Ansible using your Ansible hosts inventory for a source.
# Will include all hosts the playbook is run on.
# Inspired from http://xmeblog.blogspot.com/2013/06/ansible-dynamicaly-update-etchosts.html

- name: "Build hosts file"
  lineinfile: dest=/etc/hosts regexp='.*{{ item }}$' line="{{ hostvars[item].ansible_default_ipv4.address }} {{item}}" state=present
  when: hostvars[item].ansible_default_ipv4.address is defined
  with_items: groups['all']

dbkinghorn

#cloud-config
autoinstall:
  version: 1
  refresh-installer:  # start with an up-to-date installer
  update: yes
  interactive-sections:  # Install groups listed here will wait for user input
    - storage
  storage:  # should set the interactive default but doesn't seem to work??
    layout:
      name: direct

StevenACoffman

Fluent-bit rocks

A short survey of log collection options and why you picked the wrong one. 😜

Who am I? Where am I from?

I'm Steve Coffman and I work at Ithaka. We do JStor (academic journals) and other stuff. How big is it?

Number	what it means
101,332,633	unique visitors in 2017

cimmanon

I use PostgreSQL via the psql client. If you use a different client (eg. pgAdmin, etc.), I don't know how much will translate over.

One nice difference between psql and mysql (cli) is that if you press CTRL+C, it won't exit the client.

User administration

Login as superuser (via shell)

psql -U postgres

rmondello

Exporting (iCloud) Keychain and Safari credentials to a CSV file

Update (October 2021)

Exporting password + one-time code data from iCloud Keychain is now officially supported in macOS Monterey and Safari 15 (for Monterey, Big Sur, and Catalina). You can access it in the Password Manager’s “gear” icon (System Preferences > Passwords on Monterey, and Safari > Passwords everywhere else), or via the File > Export > Passwords... menu item). You shouldn't need to hack up your own exporter anymore.

Original, Obsolete Content (2014)

After my dad died, I wanted to be able to have access any of his online accounts going forward. My dad was a Safari user and used iCloud Keychain to sync his credentials across his devices. I don’t want to have to keep an OS X user account around just to access his accounts, so I wanted to export his credentials to a portable file.