begin29

Kubectl run

Create an NGINX Pod

kubectl run nginx --image=nginx

Generate POD Manifest YAML file (-o yaml). Don't create it(--dry-run)

kubectl run nginx --image=nginx --dry-run=client -o yaml

begin29

def user_params(user)
  {
    id: user.cio_id,
    first_name: user.first_name,
    last_name: user.last_name,
    email: user.email,
  }
end

cio_client = Customerio::Client.new(ENV['CUSTOMER_IO_SITE_ID'], ENV['CUSTOMER_IO_API_KEY'])

begin29

# === ruby books
# confident ruby
https://www.dropbox.com/sh/t4xu4t3hitqvqjy/AAAncKJ2s_9R-74WHv8zdVdYa?dl=0
# fareless refactoring
https://www.dropbox.com/sh/pobxg0jpz7ndho1/AACS84n6AAFnx1ppl4M2MNjLa?dl=0
# Sandy Metz Practical ruby design
https://www.dropbox.com/s/p8oejgchshk16ki/Sandi%20Metz%20-%20Practical%20Object-Oriented%20Design%20in%20Ruby.epub?dl=0
# Rails as she is spoke 2012
https://www.dropbox.com/s/jqvlcj15jv11hh3/Docfoc.com-Rails%20as%20She%20is%20Spoke.pdf?dl=0
# lean-publishing-growing-rails-applications-in-practice-2014

begin29

mutex = Mutex.new
flags = [false, false, false, false, false, false, false, false, false, false]

threads = 50.times.map do
  Thread.new do
    100000.times do
      puts flags.to_s
      mutex.synchronize do
        flags.map! { |f| !f }
      end

begin29

def match_urls_in_cities(file_names)
  cities_count = {}
  file_names.each do |file_name|
    File.open(file_name, "r") do |f|
      f.each_line do |line|
        city_name = line.match(/(.*)\t/)[0].gsub("\t", "")
        cities_count[city_name] ||= 0
        cities_count[city_name] += 1 if is_url_present?(line)
      end
    end

begin29

func Backspace()
  if col('.') == 1
    if line('.')  != 1
      return  "\<ESC>kA\<Del>"
    else
      return ""
    endif
  else
    return "\<Left>\<Del>"
  endif

begin29

# I am working on new feature
$ git checkout -b some-new-feature

#Changed files, commit and push to source
git add . && git commit -m 'some cool changes' && git push origin some-new-feature

#After comments within pull request I need to fix some code
#After fix it and commit I can see 2 commits within git history
$ git add . && git commit -m 'some fix to cool changes' && git push origin some-new-feature
$ git log 

begin29

#create link
ln -s /path/to/file /path/to/symlink

#see all available memory
df -h

#returns the number of lines, words, and bytes in a file. Can use -l, -w, -c to get just one of these.
wc

# change user password

begin29

["*", "%", "`", "-" ,"\\", "/", "[", "]", "{", "}", "&", "#", "$", "@", "!", "^", "(", ")", "'", '"', ',' ]

begin29

# factory patern in ruby
http://rubyblog.com.ua/2016/04/factory-method-pattern-in-ruby

#ruby recursion
https://www.leighhalliday.com/recursion-in-ruby

# ruby on rails optimisation tips
https://infinum.co/the-capsized-eight/articles/top-8-tools-for-ruby-on-rails-code-optimization-and-cleanup

# write faster ruby app