IanVaughan

# gem install tty-prompt
# gem install tty-command

require 'tty-prompt'
require 'tty-command'
require 'thor'
require 'pry'

class MyCLI < Thor
  class_option :env, type: :string, default: ENV['K8S_ENV']

IanVaughan

#!/usr/bin/env ruby
# Usage :
# In slack `/todo list`
# Copy output, pipe into this script

file = ARGV[0]
data = File.read(file)

# sed -e 's/.*`\(.*\)`.*/git merge --no-edit --no-ff origin\/\1/'
FIND = /.*`(.*)`.*/

IanVaughan

defmodule CallsProcess do
  use GenServer

  def start_link(state) do
    GenServer.start_link(__MODULE__, state, name: __MODULE__)
  end

  def init(state), do: {:ok, state}

  def handle_call(:test, _from, %{call_timeout: call_timeout} = state) do

IanVaughan

defmodule CallsProcessOnTimeout do
  use GenServer

  def start_link(opts) do
    self() |> IO.inspect(label: "#{__MODULE__}.start_link")
    GenServer.start_link(__MODULE__, opts, name: __MODULE__)
  end

  def init(opts) do
    self() |> IO.inspect(label: "#{__MODULE__}.init returing :ok, pid")

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}"')