I would like to try getting some more additional debugging information out of the OpenStack provider. Can I get you to require this patch and then re-execute your code?

content_debug_patch.rb

if Fog::VERSION == "1.19.0"
  
  require 'rubygems'
  require 'fog'
  require 'fog/openstack'
  require 'fog/storage'
 
 Fog::Logger.warning "PATCHING Fog::Storage::OpenStack to added debugging information to JSON decoding"

  module Fog
    module Storage
      class OpenStack < Fog::Service
        class Real

          def request(params, parse_json = true)
            begin
              response = @connection.request(params.merge({
                :headers  => {
                  'Content-Type' => 'application/json',
                  'Accept' => 'application/json',
                  'X-Auth-Token' => @auth_token
                }.merge!(params[:headers] || {}),
                :path     => "#{@path}/#{params[:path]}",
              }))
            rescue Excon::Errors::Unauthorized => error
              if error.response.body != 'Bad username or password' # token expiration
                @openstack_must_reauthenticate = true
                authenticate
                retry
              else # bad credentials
                raise error
              end
            rescue Excon::Errors::HTTPStatusError => error
              raise case error
              when Excon::Errors::NotFound
                Fog::Storage::OpenStack::NotFound.slurp(error)
              else
                error
              end
            end
            puts "[#{@path}/#{params[:path]}] empty? #{!response.body.empty?} parse_json: #{parse_json} type: #{response.get_header('Content-Type') =~ %r{application/json}}"
            puts "[#{@path}/#{params[:path]}] content-type: '#{response.get_header('Content-Type')}'"
            puts "[#{@path}/#{params[:path]}]  %r{application/json} '#{response.get_header('Content-Type') =~ %r{application/json}}'"
            puts "[#{@path}/#{params[:path]}] /application\/json/ '#{response.get_header('Content-Type') =~ /application\/json/}'"
            puts "[#{@path}/#{params[:path]}] /application\/json/i '#{response.get_header('Content-Type') =~ /application\/json/i}'"
            puts "[#{@path}/#{params[:path]}] /json/ '#{response.get_header('Content-Type') =~ /json/}'"
            if !response.body.empty? && parse_json && response.get_header('Content-Type') =~ %r{application/json}
             puts "[#{@path}/#{params[:path]}] DECODING"
              response.body = Fog::JSON.decode(response.body)
            end
            response
          end
        end
      end
    end
  end
else
  Fog::Logger.warning "PATCHING Fog::Storage::OpenStack - does not apply for #{Fog::VERSION}. Please remove it."  
end