IanVaughan

iex> self()
#PID<0.111.0>

iex> Runner.run
Elixir.MySupervisor.init, pid: #PID<0.115.0>
Elixir.ProcessThatCrashesInInit.init returing :ok, pid: #PID<0.116.0>
sup_pid: #PID<0.115.0>
child_pid: #PID<0.116.0>
Killing 1
Killing 2

IanVaughan

defmodule SigstrKafkaMonitor do
  use GenServer
  require Logger

  @restart_wait_seconds 60
  @retry_produce_seconds 1

  def start_link(opts \\ []) do
    GenServer.start_link(__MODULE__, opts, name: SigstrKafka)
  end

IanVaughan

# Usage
# api-console staging

ENV=$1
echo "* Finding POD on: $ENV"
POD=$(kubectl --context $ENV get pods | grep core-api-app | tail -n 1 | cut -d " " -f 1)
echo "* Execing into: $POD"
kubectl --context $ENV exec -it $POD rails c

IanVaughan

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

IanVaughan

#!/usr/bin/env ruby
# Usage :
# In slack `/todo list`
# Copy output into a file, eg branches.txt
# Run this against branches.txt
# ./rebuild branches.txt
# 
# Output
# git reset origin/master --hard
# git merge --no-edit --no-ff origin/fix1

IanVaughan

#!/usr/local/bin/ruby -w

# Usage:
#   ./rancher_status.rb service_name

SERVICE = ARGV[0]

def notify(text)
  title = "Rancher"
  %x(osascript -e 'display notification "#{SERVICE} is #{text}" with title "#{title}"')

IanVaughan

E, [2017-02-17T14:12:18.860398 #16633] ERROR -- #<Bunny::Session:0x4cf46b8 user@server.com:5672, vhost=core, addresses=[server.com:5672]>: Exception in the reader loop: AMQ::Protocol::EmptyResponseError: Empty response received from the server.
E, [2017-02-17T14:12:18.860486 #16633] ERROR -- #<Bunny::Session:0x4cf46b8 user@server.com:5672, vhost=core, addresses=[server.com:5672]>: Backtrace:
E, [2017-02-17T14:12:18.860537 #16633] ERROR -- #<Bunny::Session:0x4cf46b8 user@server.com:5672, vhost=core, addresses=[server.com:5672]>:         /srv/www/quiqup_api/shared/bundle/ruby/2.3.0/gems/amq-protocol-2.1.0/lib/amq/protocol/frame.rb:60:in `decode_header'
E, [2017-02-17T14:12:18.860580 #16633] ERROR -- #<Bunny::Session:0x4cf46b8 user@server.com:5672, vhost=core, addresses=[server.com:5672]>:         /srv/www/quiqup_api/shared/bundle/ruby/2.3.0/gems/bunny-2.6.3/lib/bunny/transport.rb:245:in `read_next_frame'
E, [2017-02-17T14:12:18.860609 #16633] ERROR -- #<Bunny::Session:0x4cf46b8 user@server.com:5672, vhost=core,

IanVaughan

#!/usr/bin/env ruby
require 'net/https'
https = Net::HTTP.new('encrypted.google.com', 443)
https.use_ssl = true
https.verify_mode = OpenSSL::SSL::VERIFY_PEER
puts https.request_get('/')

IanVaughan

### Keybase proof

I hereby claim:

  * I am ianvaughan on github.
  * I am ianvaughan (https://keybase.io/ianvaughan) on keybase.
  * I have a public key whose fingerprint is 5830 FAC2 8E3B 08B5 6184  CC12 5433 14A1 C247 EC45

To claim this, I am signing this object:

IanVaughan

Welcome to the Phusion Passenger Nginx module installer, v5.0.24.

This installer will guide you through the entire installation process. It
shouldn't take more than 5 minutes in total.

Here's what you can expect from the installation process:

 1. This installer will compile and install Nginx with Passenger support.
 2. You'll learn how to configure Passenger in Nginx.
 3. You'll learn how to deploy a Ruby on Rails application.