JunilJacob

Table of Contents

• set -e, -u, -x, -o pipefail
• set -e
• set -x
• set -u
• set -o pipefail
• Setting IFS
• Original Reference

set -e, -u, -x, -o pipefail

JunilJacob

##Working configuration to accomplish 0-downtime deploy with unicorn 5.x and systemd on centos 7

The scope is to accomplish a 0-downtime reload of a unicorn service managed by Systemd on a Centos 7 distro.

The examples and assumptions that i found on the bogomips's unicorn repo seems not working for centos 7.

Below a working configuration tested on Centos 7 and unicorn 5.1

Any advice/remark will be appreciated

JunilJacob

module Retriable
  # This will catch any exception and retry twice (three tries total):
  #   with_retries { ... }
  #
  # This will catch any exception and retry four times (five tries total):
  #   with_retries(:limit => 5) { ... }
  #
  # This will catch a specific exception and retry once (two tries total):
  #   with_retries(Some::Error, :limit => 2) { ... }
  #

JunilJacob

# unicorn_rails -c /data/github/current/config/unicorn.rb -E production -D

rails_env = ENV['RAILS_ENV'] || 'production'

# 16 workers and 1 master
worker_processes (rails_env == 'production' ? 16 : 4)

# Load rails+github.git into the master before forking workers
# for super-fast worker spawn times
preload_app true

JunilJacob

module OneTimePassword
  # Concern containing logic and methods for OTP authentication.
  # Is used Time-based One-time Password Algorithm(TOTP)
  # https://tools.ietf.org/html/rfc6238
  extend ActiveSupport::Concern

  OTP_DIGITS = 6
  OTP_NUMBER_OF_BACKUP_CODES = 10
  OTP_BACKUP_CODE_LENGTH = 12

JunilJacob

#!/bin/bash
for i in $( git tag -l | grep staging ); do
    echo Tag: $i
    #git tag -d $i
    #git push origin :refs/tags/$i
done