Just an example

python_resource.md

1. Create new cookbook example

    knife cookbook create example
   

2. Create file name foo.py, Open Editor for examples/files/default/foo.py

    #!/usr/bin/python
    # Author: Sanjay Lokhande <[email protected]>
    import os
    
    print "I am %s, running a python script" % os.getlogin()
   

3. Open file example/recipes/default.rb

    #
    # Cookbook Name:: example
    # Recipe:: default
    #
    # Copyright 2014, OpexSoftware
    #
    # All rights reserved - Do Not Redistribute
    #
    #
    filename = "foo.py"
    cmdline = "import os; print "I am %s, running on cmd " % os.getlogin()"
    
    # Copy foo.py
    cookbook_file "/tmp/foo.py" do
      source "foo.py"
      mode "0755"
    end
    
    # Execute sample python one liner
    # cmd: python -c "import os; print "I am %s, running on cmd " % os.getlogin()"
    execute 'who_am_i' do
     cwd '/tmp'
     command "python -c #{cmdline}"
    end
    
    # Execute python script
    execute 'run_my_python_script' do
     cwd '/tmp'
     command "python #{filename}"
    end
   

4. Now upload it to chef server

    knife cookbook upload example
   

5. Add run list to node1

    knife node run_list add node1 "recipe[example]"
   

6. Run chef-client

7. Open file example/recipes/default.rb again and update with following...

    python "#{filename}" do
      cwd "/tmp" # can be list from https://docs.getchef.com/resource_python.html#Attributes
      action :run # see actions section below
    end
   

8. upload your cookbook again

    knife cookbook upload example
   

9. Run chef-client again

10. Every good!