jmatsushita

###
### [2023-06-19] UPDATE: Just tried to use my instructions again on a fresh install and it failed in a number of places. 
###.   Not sure if I'll update this gist (though I realise it seems to still have some traffic), but here's a list of 
###.   things to watch out for:
###      - Check out the `nix-darwin` instructions, as they have changed.
###      - There's a home manager gotcha https://github.com/nix-community/home-manager/issues/4026
###

# I found some good resources but they seem to do a bit too much (maybe from a time when there were more bugs).
# So here's a minimal Gist which worked for me as an install on a new M1 Pro.

lblackstone

1. Install dlv - https://github.com/go-delve/delve/tree/master/Documentation/installation
2. Compile and link k8s provider with optimizations off - https://github.com/pulumi/pulumi-kubernetes/commit/3681117730a6440d89e697bc6ae46141fb965d8d (make build && make install && yarn link "@pulumi/kubernetes")
3. Compile pulumi/pulumi with dlv WIP - https://github.com/pulumi/pulumi/commit/50414ca053981af7560b17df72a0251b9ac2ec03 (make build && make install)
4. Run the dlv WIP pulumi binary (~/go/bin/pulumi up --logtostderr -v4 --logflow)
5. Connect GoLand remote debugger to localhost:2345

Current Limitations:

• Only works for k8s provider
• Attaches to first launched process of the k8s provider

gboudreau

Generating Authy passwords on other authenticators

---

*update: TBC, but this new might affect how easy it is to use this technique past August 2024: Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August

---

This gist, based in part on a gist by Brian Hartvigsen, allows you to export from Authy your TOTP tokens you have stored there.
Those can be "standard" 6-digits / 30 secs tokens, or Authy's own version, the 7-digits / 10 secs tokens.

briansmith

How to Generate & Use Private Keys using OpenSSL's Command Line Tool

These commands generate and use private keys in unencrypted binary (not Base64 “PEM”) PKCS#8 format. The PKCS#8 format is used here because it is the most interoperable format when dealing with software that isn't based on OpenSSL.

OpenSSL has a variety of commands that can be used to operate on private key files, some of which are specific to RSA (e.g. openssl rsa and openssl genrsa) or which have other limitations. Here we always use

aaronjensen

# ATTENTION: This is now supported in plug_cowboy as of 2.1.0:
# https://hexdocs.pm/plug_cowboy/Plug.Cowboy.Drainer.html

defmodule DrainStop do
  @moduledoc """
  DrainStop Attempts to gracefully shutdown an endpoint when a normal shutdown
  occurs. It first shuts down the acceptor, ensuring that no new requests can be
  made. It then waits for all pending requests to complete. If the timeout
  expires before this happens, it stops waiting, allowing the supervision tree
  to continue its shutdown order.

pnc

Using OTP's observer (appmon replacement) remotely

$ ssh remote-host "epmd -names"
epmd: up and running on port 4369 with data:
name some_node at port 58769

Note the running on port for epmd itself and the port of the node you're interested in debugging. Reconnect to the remote host with these ports forwarded:

$ ssh -L 4369:localhost:4369 -L 58769:localhost:58769 remote-host

rcoh

import os
import subprocess
import boto.ec2
import itertools

AWS_KEY = os.getenv('AWS_ACCESS_KEY')
AWS_SECRET = os.getenv('AWS_SECRET_KEY')

# Tweak as necessary for your infrastructure
regions = ['us-east-1', 'us-west-1', 'eu-west-1']

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

hartym

stashgrep() {
  for i in `git stash list | awk -F ':' '{print $1}'`; do
    git stash show -p $i | grep -H --label="$i" "$1"
  done
}