stevenharman

# log the default values:
echo "speed_limit_max: `cat /proc/sys/dev/raid/speed_limit_max`" #=> 200000
echo "speed_limit_min: `cat /proc/sys/dev/raid/speed_limit_min`" #=> 10000
echo "stripe_cache_size: `/sys/block/md2/md/stripe_cache_size`"  #=> 256

# update to use more RAM (Stripe Cache Size) and higher lower bound (speed_limit_min)
echo 100000 > /proc/sys/dev/raid/speed_limit_min
# This will result in more memory usage. bumping to 32768 resulted in ~512MB RAM increase.
echo 32768 > /sys/block/md2/md/stripe_cache_size

stevenharman

#!/usr/bin/env bash

if grep 'pam_tid.so' /etc/pam.d/sudo --silent; then
  echo "TouchID is already enabled ✅"
else
  echo "Enabling TouchID for sudo 🪪";
  sudo sed -i -e '1s;^;auth       sufficient     pam_tid.so\n;' /etc/pam.d/sudo
fi

stevenharman

module Example
  class Config
    def initialize(host_env: ENV, rails_env: Rails.env)
      @host_env = host_env.to_hash
      @rails_env = rails_env
    end

    def admin_qa_tooling_enabled?
      coerce_boolean(host_env.fetch("ADMIN_QA_TOOLING", "false"))
    end

stevenharman

#!/usr/bin/env sh

echo "Creating a self-signed certificate..."
openssl req -new -newkey rsa:2048 -sha1 -days 3650 -nodes -x509 -subj "/C=US/ST=Georgia/L=Atlanta/O=BNR/CN=localhost.ssl" -keyout config/server.key -out config/server.crt

if ! grep -q "\blocalhost\.ssl\b" /private/etc/hosts; then
  echo "Adding localhost.ssl to your hosts file..."
  echo "127.0.0.1 localhost.ssl" | sudo tee -a /private/etc/hosts
fi

stevenharman

# frozen_string_literal: true

require 'active_support'
require 'active_support/core_ext/object/blank'
require 'active_support/core_ext/time'

class DateRange
  attr_reader :start, :stop

  def initialize(start: nil, stop: nil)

stevenharman

# So… uuuh… what had happend was - I'd changed our `.rspec` config so that we
# could have isolated specs. The only real change was to not auto-require
# `rails_helper` in the `.rspec` config. Instead we auto-require `spec_helper`,
# and then files that need `rails_helper` (to boot rails) will have to add
# `require 'rails_helper'`.
#
# I didn’t think much of it b/c I’d noted that the specs I’d been looking at
# were already doing `require 'rails_helper'`, so it should be a no-op for
# them. It turns out, 700 or so other spec files ARE NOT already requiring
# `rails_helper`. So… what does one do when confronted with needing to in-place

stevenharman

module Root
  FOO = 'Ayyyy!'
end

module Root::NotNested
  def self.speak
    puts FOO
  end
end

stevenharman

Telemetry.configure do |c|
  c.component = ENV.fetch("COMPONENT_NAME")
  c.environment = ENV.fetch("APP_ENV")
  c.deployment_environment = ENV.fetch("DEPLOYMENT_ENVIRONMENT")

  c.honeycomb_api_key = ENV.fetch("HONEYCOMB_API_KEY", nil)
  c.honeycomb_dataset = ENV.fetch("HONEYCOMB_DATASET", nil)

  # This is delegating through to `OpenTelemetry::SDK::Configurator#use_all`
  c.use_all("OpenTelemetry::Instrumentation::Sidekiq" => {span_naming: :job_class})

stevenharman

# Observability
gem "opentelemetry-sdk"
gem "opentelemetry-exporter-otlp"
gem "opentelemetry-instrumentation-all"

stevenharman

select fund_sums.total, fund_products.name
from (
  select sum(allocation_amount) total, fund_product_id
    from transactions 
    where transactions.investor_id = 490
    group by fund_product_id
) fund_sums
left join fund_products on fund_sums.fund_product_id = fund_products.id