thomasst

"""
Copies all keys from the source Redis host to the destination Redis host.
Useful to migrate Redis instances where commands like SLAVEOF and MIGRATE are
restricted (e.g. on Amazon ElastiCache).

The script scans through the keyspace of the given database number and uses
a pipeline of DUMP and RESTORE commands to migrate the keys.

Requires Redis 2.8.0 or higher.

labrown

---
###
# Elasticsearch Rolling restart using Ansible
###

##
## Why is this needed?
##
#
# Even if you use a serial setting to limit the number of nodes processed at one

tristanfisher

Working with ansible-vault

---

I've been using a lot of Ansible lately and while almost everything has been great, finding a clean way to implement ansible-vault wasn't immediately apparent.

What I decided on was the following: put your secret information into a vars file, reference that vars file from your task, and encrypt the whole vars file using ansible-vault encrypt.

Let's use an example: You're writing an Ansible role and want to encrypt the spoiler for the movie Aliens.

ardianys

class User
  has_attached_file :photo,
                    processors: [:watermark],
                    styles: {
                      medium: {
                        geometry:       "300x300>",
                        watermark_path: "#{Rails.root}/public/images/watermark.png",
                        auto_orient:    false
                      },
                      thumb: "100x100>",

jessieay

namespace :ckeditor do
  desc 'Create nondigest versions of all ckeditor digest assets'
  task :create_nondigest_assets do
    fingerprint = /\-([0-9a-f]{32})\./

    for file in Dir['public/assets/ckeditor/**/*']
      next unless file =~ fingerprint

      nondigest = file.sub(fingerprint, '.')
      filename = nondigest.sub('public/assets/', '').sub(/.gz$/, '')

pjobson

Removal of McAfee from OSX

Note: This was written in 2015, it may be out of date now.

There are a lot of commands here which I use sudo if you don't know what you're doing with sudo, especially where I rm you can severely screw up your system.

There are many reasons which you would want to remove a piece of software such as McAfee, such as not wanting it to hammer your CPU during work hours which seems like primetime for a virus scan.

I intend this to be a living document, I have included suggestions from peoples' replies.

brysgo

CHECKING_OUT_BRANCH=$3
OLD_BRANCH=$1
NEW_BRANCH=$2

if [ $CHECKING_OUT_BRANCH -eq 1 ]
  then
    FILES_CHANGED=`git diff $OLD_BRANCH $NEW_BRANCH --name-status`
    MIGRATIONS_REMOVED=`echo "$FILES_CHANGED" | egrep 'D\tdb/migrate/([0-9]+)' | sort -r`
    MIGRATIONS_ADDED=`echo "$FILES_CHANGED" | egrep 'A\tdb/migrate/([0-9]+)'`
    

taf2

# fireway configured with: http://major.io/2007/07/01/active-ftp-connections-through-iptables/

require 'net/ftp'
require 'stringio'

# allows us to upload files by content instead of writing to disk first
class Net::FTP
  def puttextcontent(content, remotefile, &block)
    f = StringIO.new(content)
    begin

rothgar

# Idempotent way to build a /etc/hosts file with Ansible using your Ansible hosts inventory for a source.
# Will include all hosts the playbook is run on.
# Inspired from http://xmeblog.blogspot.com/2013/06/ansible-dynamicaly-update-etchosts.html

- name: "Build hosts file"
  lineinfile: dest=/etc/hosts regexp='.*{{ item }}$' line="{{ hostvars[item].ansible_default_ipv4.address }} {{item}}" state=present
  when: hostvars[item].ansible_default_ipv4.address is defined
  with_items: groups['all']

zsprackett

##################### ElasticSearch Configuration Example #####################

# This file contains an overview of various configuration settings,
# targeted at operations staff. Application developers should
# consult the guide at <http://elasticsearch.org/guide>.
#
# The installation procedure is covered at
# <http://elasticsearch.org/guide/en/elasticsearch/reference/current/setup.html>.
#
# ElasticSearch comes with reasonable defaults for most settings,