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grafana.rb
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grafana.rb
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# Copyright 2015 Mirantis, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
require 'cgi'
require 'json'
require 'net/http'
class Puppet::Provider::Grafana < Puppet::Provider
# Helper methods
def grafana_host
unless @grafana_host
@grafana_host = URI.parse(resource[:grafana_url]).host
end
@grafana_host
end
def grafana_port
unless @grafana_port
@grafana_port = URI.parse(resource[:grafana_url]).port
end
@grafana_port
end
def grafana_scheme
unless @grafana_scheme
@grafana_scheme = URI.parse(resource[:grafana_url]).scheme
end
@grafana_scheme
end
# Return a Net::HTTP::Response object
def send_request(operation="GET", path="", data=nil, search_path={})
request = nil
encoded_search = ""
if URI.respond_to?(:encode_www_form)
encoded_search = URI.encode_www_form(search_path)
else
# Ideally we would have use URI.encode_www_form but it isn't
# available with Ruby 1.8.x that ships with CentOS 6.5.
encoded_search = search_path.to_a.map do |x|
x.map{|y| CGI.escape(y.to_s)}.join('=')
end
encoded_search = encoded_search.join('&')
end
uri = URI.parse("%s://%s:%d%s?%s" % [
self.grafana_scheme, self.grafana_host, self.grafana_port,
path, encoded_search])
case operation.upcase
when 'POST'
request = Net::HTTP::Post.new(uri.request_uri)
request.body = data.to_json()
when 'PUT'
request = Net::HTTP::Put.new(uri.request_uri)
request.body = data.to_json()
when 'GET'
request = Net::HTTP::Get.new(uri.request_uri)
when 'DELETE'
request = Net::HTTP::Delete.new(uri.request_uri)
else
raise Puppet::Error, "Unsupported HTTP operation '%s'" % operation
end
request.content_type = 'application/json'
if resource[:grafana_user] and resource[:grafana_user]
request.basic_auth resource[:grafana_user], resource[:grafana_password]
end
return Net::HTTP.start(self.grafana_host, self.grafana_port) do |http|
http.request(request)
end
end
end

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