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simplay / docker-cleanup-resources.md
Created September 14, 2018 13:21 — forked from bastman/docker-cleanup-resources.md
docker cleanup guide: containers, images, volumes, networks

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

@simplay
simplay / enable-mobx-annotation-es6.md
Last active May 24, 2018 16:27

Enable mobx' annotations in es6

  1. Install plugins:

yarn add mobx mobx-react react-app-rewire-mobx

yarn add --dev react-app-rewired

  1. Define config-overrides:
@simplay
simplay / digital_ocean_setup.md
Created October 17, 2017 21:56 — forked from ChuckJHardy/digital_ocean_setup.md
DigitalOcean Ubuntu 14.04 x64 + Rails 4 + Nginx + Unicorn + PostgreSQL + Capistrano 3 Setup Instructions

DigitalOcean Ubuntu 14.04 x64 + Rails 4 + Nginx + Unicorn + PostgreSQL + Capistrano 3

Create a Droplet

SSH into Root

$ ssh root@123.123.123.123

Change Root Password

@simplay
simplay / require_gems.md
Created October 13, 2017 07:56
Require all gems specified in a Gemfile in a non Rails app.

Inside Gemfile:

source "https://rubygems.org"
gem 'hashtel'

The app.rb code:




  


  




    


          
    

      

        
        

          

              @simplay
          

          

            
                simplay
                / gist:b5c5e84009048a238eea430b55968c1c
            
            

              Created
              October 2, 2017 10:52
            

              
                Install Vim 8 with Python, Python 3, Ruby and Lua support on Ubuntu 16.04
              
          

        

      

        

  

    
    


        



  


  

        

          
          sudo apt-get remove --purge vim vim-runtime vim-gnome vim-tiny vim-gui-common
        

        

          
           
        

        

          
          sudo apt-get install liblua5.1-dev luajit libluajit-5.1 python-dev ruby-dev libperl-dev libncurses5-dev libatk1.0-dev libx11-dev libxpm-dev libxt-dev
        

        

          
          

        

        

          
          #Optional: so vim can be uninstalled again via `dpkg -r vim`
        

        

          
          sudo apt-get install checkinstall
        

        

          
          

        

        

          
          sudo rm -rf /usr/local/share/vim /usr/bin/vim
        

        

          
          

        

        

          
          cd ~
        

  





    


  




    


          
    

      

        
        

          

              @simplay
          

          

            
                simplay
                / psql_good2know.md
            
            

              Last active
              September 21, 2017 10:51
            

          

        

      

        

  

      

    
PSQL Cheat-Sheet


Some Facts


    

  • NULLis never equal to anything.
    • 

  • 7 = NULLand 7 <> NULL always yield NULL
    • 

  • 7 IS DISTINCT FROM NULL is TRUE
    • 

  • 7 IS NOT DISTINCT FROM NULL is FALSE
    • 

  • Match UNKNOWN via IS (NOT) UNKNOWN
    • 

  • Only records with a true conditional in a WHERE statement are matched (and hence fetched).
    • 




  


  




    


          
    

      

        
        

          

              @simplay
          

          

            
                simplay
                / yardoc_cheatsheet.md
            
            

              Created
              July 21, 2017 13:36
                — forked from chetan/yardoc_cheatsheet.md
            

              
                YARD cheatsheet
              
          

        

      

        

  

      

    
YARD CHEATSHEET http://yardoc.org


cribbed from http://pastebin.com/xgzeAmBn


Templates to remind you of the options and formatting for the different types of objects you might
want to document using YARD.


Modules


Namespace for classes and modules that handle serving documentation over HTTP



  


  




    


          
    

      

        
        

          

              @simplay
          

          

            
                simplay
                / gist:96f41262c2c9413c99517494c0805933
            
            

              Created
              July 8, 2017 15:13
            

              
                keepassx2 on ubuntu 16.04
              
          

        

      

        

  

    
    


        



  


  

        

          
          http://ubuntuhandbook.org/index.php/2017/04/install-the-latest-keepass2-2-35-in-ubuntu-16-04-16-10-14-04/
        

  





    


  




    


          
    

      

        
        

          

              @simplay
          

          

            
                simplay
                / debugging_in_jruby.md
            
            

              Created
              February 20, 2017 08:42
                — forked from klappradla/debugging_in_jruby.md
            

              
                Debugging in JRuby
              
          

        

      

        

  

      

    
Debugging in JRuby


Step-by-step debugging and stack navigation for JRuby code.


Problem: the common tools byebug and pry-byebug are MRI-only.


Prerequisites


Force JRuby to run in fully interpreted mode:

(otherwise next would behave like step)



  


  




    


          
    

      

        
        

          

              @simplay
          

          

            
                simplay
                / tmux-cheatsheet.markdown
            
            

              Created
              February 13, 2017 13:21
                — forked from MohamedAlaa/tmux-cheatsheet.markdown
            

              
                tmux shortcuts & cheatsheet
              
          

        

      

        

  

      

    
tmux shortcuts & cheatsheet


start new:


tmux



start new with session name:


tmux new -s myname