96 lines
2.9 KiB
Ruby
96 lines
2.9 KiB
Ruby
module RubyQA
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class Resource
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# This is responsible for data gathering & parsing to provide the test-writers direct access to
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# resource information without needing to manually specify them in their code.
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attr_reader :name, :data
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# REQUIREMENTS
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# This is a Hash that is meant to serve as a way of determining if a resource needs to be
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# added to a host. If a key is defined here it will be checked against the information
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# configured on the host. If it does not find matching keys it will not be added
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#
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# If empty it will just be assumed that this resource can be added to the host.
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#
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# This MUST be defined in each Resourced subclass, as otherwise manager will error when
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# adding this resource to host.
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REQUIREMENTS = {}
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def initialize (host)
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@host = host
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@data = Hash.new
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@gather_command = ""
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end
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# TODO: Create validate_host method to replace REQUIREMENTS for a bit more flexiblity on
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# determining if a host is valid for this resource to be added to it.
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# TODO: Add a discovery method for the resource to find out if the necessary utilities or
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# otherwise are on the host
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def gather
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# Handles gathering the information from the host. Provided the developer has provided a
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# @gather_command it will run that command on the remote host & provide the output to the
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# user/dev implemented parse command. This can be overwritten by the sublcass to make it all in one in cases
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# where something needs to be done differently
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if not @gather_command.empty?
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output = @host.exec(@gather_command)
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parse(output)
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else
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raise "@gather_command was not defined on Resource[#{@name}]"
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end
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end
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def parse(output)
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# Subclass Implemented method that is supposed to handle parsing the gathered data on the remote node.
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raise "parse not yet implemented on Resource[#{@name}]"
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end
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def self.all_resources
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## This will allow me to iterate through all subclasses without
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## having to manually define them elsewhere
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ObjectSpace.each_object(Class).select{|klass| klass < self}
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end
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end
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## Gathers the facts from the remote machine via the facter utility
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class Facts < Resource
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require 'json'
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REQUIREMENTS = {}
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def initialize (host)
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super host
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@name = 'facts'
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@gather_command = "facter -j"
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end
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def parse (output)
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@data = JSON.load(output)
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end
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end
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class DRDB < Resource
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# Handles gathering DRBD related information from the drbdadm utility.
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REQUIREMENTS = {
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:cluster => true
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}
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def initialize (host)
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super host
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@name = 'facts'
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@gather_command = "sudo drbdadm"
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end
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# TODO: Add a XML parser to requires & have the parse method load the config from the `sudo drbdadm dump-xml`
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# command
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def parse (output)
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@data = output
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end
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end
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end
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