Facter 3 and Facter 4 outputs have the fallowing differences: {"ec2_metadata.ami-id"=>{:new_value=>"nil", :old_value=>"\"ami-04b741928ba3831b2\""}, "ec2_metadata.ami-launch-index"=>{:new_value=>"nil", :old_value=>"\"0\""}, "ec2_metadata.ami-manifest-path"=>{:new_value=>"nil", :old_value=>"\"(unknown)\""}, "ec2_metadata.block-device-mapping.ami"=>{:new_value=>"nil", :old_value=>"\"sda1\""}, "ec2_metadata.block-device-mapping.root"=>{:new_value=>"nil", :old_value=>"\"/dev/sda1\""}, "ec2_metadata.events.maintenance.history"=>{:new_value=>"nil", :old_value=>"\"[]\""}, "ec2_metadata.events.maintenance.scheduled"=>{:new_value=>"nil", :old_value=>"\"[]\""}, "ec2_metadata.hostname"=>{:new_value=>"nil", :old_value=>"\"ip-10-227-4-220.amz-dev.puppet.net\""}, "ec2_metadata.identity-credentials.ec2.info"=>{:new_value=>"nil", :old_value=>"\"{\\n \\\"Code\\\" : \\\"Success\\\",\\n \\\"LastUpdated\\\" : \\\"2020-09-18T11:37:07Z\\\",\\n \\\"AccountId\\\" : \\\"469621717811\\\"\\n}\""}, "ec2_metadata.instance-action"=>{:new_value=>"nil", :old_value=>"\"none\""}, "ec2_metadata.instance-id"=>{:new_value=>"nil", :old_value=>"\"i-040d1689360920973\""}, "ec2_metadata.instance-life-cycle"=>{:new_value=>"nil", :old_value=>"\"on-demand\""}, "ec2_metadata.instance-type"=>{:new_value=>"nil", :old_value=>"\"a1.large\""}, "ec2_metadata.local-hostname"=>{:new_value=>"nil", :old_value=>"\"ip-10-227-4-220.amz-dev.puppet.net\""}, "ec2_metadata.local-ipv4"=>{:new_value=>"nil", :old_value=>"\"10.227.4.220\""}, "ec2_metadata.mac"=>{:new_value=>"nil", :old_value=>"\"06:86:3d:7b:4c:4b\""}, "ec2_metadata.metrics.vhostmd"=>{:new_value=>"nil", :old_value=>"\"<?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?>\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.device-number"=>{:new_value=>"nil", :old_value=>"\"0\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.interface-id"=>{:new_value=>"nil", :old_value=>"\"eni-093623fe27a8e4037\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.local-hostname"=>{:new_value=>"nil", :old_value=>"\"ip-10-227-4-220.amz-dev.puppet.net\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.local-ipv4s"=>{:new_value=>"nil", :old_value=>"\"10.227.4.220\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.mac"=>{:new_value=>"nil", :old_value=>"\"06:86:3d:7b:4c:4b\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.owner-id"=>{:new_value=>"nil", :old_value=>"\"469621717811\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.security-group-ids"=>{:new_value=>"nil", :old_value=>"\"sg-697fb015\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.security-groups"=>{:new_value=>"nil", :old_value=>"\"default\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.subnet-id"=>{:new_value=>"nil", :old_value=>"\"subnet-0fe90a688844f6f26\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.subnet-ipv4-cidr-block"=>{:new_value=>"nil", :old_value=>"\"10.227.4.0/22\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.vpc-id"=>{:new_value=>"nil", :old_value=>"\"vpc-db796bbd\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.vpc-ipv4-cidr-block"=>{:new_value=>"nil", :old_value=>"\"10.227.0.0/16\""}, "ec2_metadata.network.interfaces.macs.06:86:3d:7b:4c:4b.vpc-ipv4-cidr-blocks"=>{:new_value=>"nil", :old_value=>"\"10.227.0.0/16\""}, "ec2_metadata.placement.availability-zone"=>{:new_value=>"nil", :old_value=>"\"us-west-2b\""}, "ec2_metadata.placement.availability-zone-id"=>{:new_value=>"nil", :old_value=>"\"usw2-az2\""}, "ec2_metadata.placement.region"=>{:new_value=>"nil", :old_value=>"\"us-west-2\""}, "ec2_metadata.profile"=>{:new_value=>"nil", :old_value=>"\"default-hvm\""}, "ec2_metadata.public-keys.0.openssh-key"=>{:new_value=>"nil", :old_value=>"\"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC/0IJMDxCAwnWbuaBi23jZaTQSpd0RWLzMt5v7/ewZCe6Atv2rWE6YF68CwwOK/utUdCozaNO2knXN6K2S9e68wHd13IiiO6PS90dPVhP4nvNAohw69tDlouq69XEylWKqVKSDX43jtNTSOK6fiC4TOFfDg8PPiucdEgH3NIAVh6Ke1WgOzltXPfK1JN9LNJNBXz2E5G2Qlzf/wZxS7/RpDX3XSh4fKqpDzk12MuMQd1wDrxXC7yeSVEIm3nD2XGhmhqzuO77Q7FhmKrYsD64SLiVVcberYo1f49uJAAIZedlLZOBseH2Z6w1JqXGbKw0g7d/GRaYq8PYr7m3EnvG1 always-be-scheduling\""}, "ec2_metadata.reservation-id"=>{:new_value=>"nil", :old_value=>"\"r-08e6e53b1f546d4a9\""}, "ec2_metadata.security-groups"=>{:new_value=>"nil", :old_value=>"\"default\""}, "ec2_metadata.services.domain"=>{:new_value=>"nil", :old_value=>"\"amazonaws.com\""}, "ec2_metadata.services.partition"=>{:new_value=>"nil", :old_value=>"\"aws\""}}
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