akshaykarle

Keybase proof

I hereby claim:

• I am akshaykarle on github.
• I am akshaykarle (https://keybase.io/akshaykarle) on keybase.
• I have a public key ASBBYE_Ho0KJ9XLCUkWWiKL4a2yNh-b6RgutyoqzMSYW2wo

To claim this, I am signing this object:

akshaykarle

What will we do?

Dockerize a simple java app that connects to a postgresql db

Agenda

• Download the java app- https://github.com/ronualdo/javakihon
• Understand how it works
• DockerHub- http://hub.docker.com/
• Pull and run postgres image
• Run the java app
• Create and understand Dockerfile- https://docs.docker.com/engine/reference/builder/

akshaykarle

 vagrant@vagrant-ubuntu-trusty-64  /vagrant   master  r test
/home/vagrant/.rbenv/versions/2.1.5/bin/ruby -I"lib:test" -I"/home/vagrant/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/rake-10.4.2/lib" "/home/vagrant/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/rake-10.4.2/lib/rake/rake_test_loader.rb" "test/test_helpers.rb" "test/test_lxc_class_methods.rb" "test/test_lxc_create_asynchronous.rb" "test/test_lxc_created.rb" "test/test_lxc_long_running.rb" "test/test_lxc_running.rb" "test/test_lxc_undefined.rb"
/vagrant/lib/lxc.rb:2:in `require': cannot load such file -- lxc/lxc (LoadError)
	from /vagrant/lib/lxc.rb:2:in `<top (required)>'
	from /vagrant/test/test_helpers.rb:1:in `require'
	from /vagrant/test/test_helpers.rb:1:in `<top (required)>'
	from /home/vagrant/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/rake-10.4.2/lib/rake/rake_test_loader.rb:15:in `require'
	from /home/vagrant/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/gems/rake-10.4.2/lib/rake/rake_test_loader.rb:15:in `block in <main>'
	from /h

akshaykarle

Agenda

Basics

• What is Docker and why do you need it? - https://www.youtube.com/watch?v=jB-Ddfph7EI https://docs.docker.com/introduction/understanding-docker/
• Try it - https://www.docker.com/tryit/
• Install it - https://docs.docker.com/installation/mac/
• Run it - https://docs.docker.com/userguide/

Advanced

akshaykarle

lib = File.expand_path('../lib', __FILE__)
$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
require 'bash/session.rb'

sh = Bash::Session.new
@exit_status = sh.execute("buffer_file=/tmp/last_heroku_run; heroku run --app 'railsideas' 'rake db:migrate --trace; echo $?' | tee $buffer_file; (exit `tail -1 $buffer_file`) # foo") { |output| print output }

puts "*"*80
puts @exit_status

akshaykarle

## Install libxml2, libxslt and libiconv

$ brew install libxml2 libxslt libiconv

## List the locations of these packages

$ brew list libxml2

``
/opt/boxen/homebrew/Cellar/libxml2/2.9.1/bin/xml2-config

akshaykarle

Keybase proof

I hereby claim:

• I am akshaykarle on github.
• I am akshaykarle (https://keybase.io/akshaykarle) on keybase.
• I have a public key whose fingerprint is C6A0 AF98 5931 B20A 2CBD 353E 5861 E99A AD1B 3C4A

To claim this, I am signing this object:

akshaykarle

VERSION=2.0.0
PATCH=p353

curl https://raw.githubusercontent.com/skaes/rvm-patchsets/master/patchsets/ruby/${VERSION}/${PATCH}/railsexpress | xargs -I% curl https://raw.githubusercontent.com/skaes/rvm-patchsets/master/patches/ruby/${VERSION}/${PATCH}/% | SKIP_PRECOMPILED_RUBIES=true rbenv install -vf --patch ${VERSION}-${PATCH}

akshaykarle

source 'https://rubygems.org'

group :development do
  gem 'spring'
  gem 'rb-readline'
  gem 'rack-mini-profiler'
  gem 'better_errors'
  gem 'binding_of_caller'
  gem 'flamegraph'
  gem 'meta_request'

akshaykarle

require 'irb'

module IRB # :nodoc:
  def self.start_session(binding)
    unless @__initialized
      args = ARGV
      ARGV.replace(ARGV.dup)
      IRB.setup(nil)
      ARGV.replace(args)
      @__initialized = true