Host Inventory
You can get host inventory information.
host_inventory['memory']['total']
This is one of the features of Specinfra precisely, not Serverspec. But you can use this feature from Serverspec.
From Itamae, you can use this feature like this.
node['memory']['total']
Supported inventory types
cpu
host_inventory['cpu']['total'] # => 1
host_inventory['cpu']['0']['vendor_id'] # => GenuineIntel
host_inventory['cpu']['0']['cpu_family'] # => 6
host_inventory['cpu']['0']['model'] # => 58
host_inventory['cpu']['0']['model_name'] # => Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz
host_inventory['cpu']['0']['stepping'] # => 9
host_inventory['cpu']['0']['microcode'] # => 0x19
host_inventory['cpu']['0']['cpu_mhz'] # => 2395.601
host_inventory['cpu']['0']['cache_size'] # => 6144KB
host_inventory['cpu']['0']['physical_id'] # => 0
host_inventory['cpu']['0']['siblings'] # => 1
host_inventory['cpu']['0']['core_id'] # => 0
host_inventory['cpu']['0']['cpu_cores'] # => 1
host_inventory['cpu']['0']['apicid'] # => 0
host_inventory['cpu']['0']['initial_apicid'] # => 0
host_inventory['cpu']['0']['fpu'] # => yes
host_inventory['cpu']['0']['fpu_exception'] # => yes
host_inventory['cpu']['0']['cpuid_level'] # => 13
host_inventory['cpu']['0']['wp'] # => yes
host_inventory['cpu']['0']['flags'] # => ["fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", "cx8", "apic", "sep", "mtrr", "pge", "mca", "cmov", "pat", "pse36", "clflush", "mmx", "fxsr", "sse", "sse2", "syscall", "nx", "rdtscp", "lm", "constant_tsc", "rep_good", "nopl", "xtopology", "nonstop_tsc", "pni", "pclmulqdq", "monitor", "ssse3", "cx16", "sse4_1", "sse4_2", "popcnt", "aes", "xsave", "avx", "rdrand", "lahf_lm"]
host_inventory['cpu']['0']['bogomips'] # => 4791.20
host_inventory['cpu']['0']['clflush_size'] # => 64
host_inventory['cpu']['0']['cache_alignment'] # => 64
host_inventory['cpu']['0']['address_sizes'] # => 36 bits physical, 48 bits virtual
host_inventory['cpu']['0']['power_management'] # =>
domain
You can get domain name like this.
host_inventory['domain'] # => localdomain
ec2
You can get ec2 metadata which can be taken from http://169.254.169.254/latest/meta-data/.
host_inventory['ec2']['ami-id'] # => ami-35072834
host_inventory[:ec2] is a hash which has keys and values like this.
{"ami-id"=>"ami-35072834",
"ami-launch-index"=>"0",
"ami-manifest-path"=>"(unknown)",
"block-device-mapping"=>{"ami"=>"/dev/xvda", "root"=>"/dev/xvda"},
"hostname"=>"ip-172-30-1-119.ap-northeast-1.compute.internal",
"instance-action"=>"none",
"instance-id"=>"i-0d307c14",
"instance-type"=>"t2.micro",
"local-hostname"=>"ip-172-30-1-119.ap-northeast-1.compute.internal",
"local-ipv4"=>"172.30.1.119",
"mac"=>"06:7f:7c:cb:8e:d0",
"metrics"=>{"vhostmd"=>"<?xml version=\"1.0\" encoding=\"UTF-8\"?>"},
"network"=>
{"interfaces"=>
{"macs"=>
{"06:7f:7c:cb:8e:d0"=>
{"device-number"=>"0",
"interface-id"=>"eni-d98d1dae",
"ipv4-associations"=>{"54.64.165.234"=>"172.30.1.119"},
"local-hostname"=>"ip-172-30-1-119.ap-northeast-1.compute.internal",
"local-ipv4s"=>"172.30.1.119",
"mac"=>"06:7f:7c:cb:8e:d0",
"owner-id"=>"853708250916",
"public-hostname"=>"",
"public-ipv4s"=>"54.64.165.234",
"security-group-ids"=>"sg-00478965",
"security-groups"=>"launch-wizard-4",
"subnet-id"=>"subnet-6654bd11",
"subnet-ipv4-cidr-block"=>"172.30.1.0/24",
"vpc-id"=>"vpc-3108e254",
"vpc-ipv4-cidr-block"=>"172.30.0.0/16"}}}},
"placement"=>{"availability-zone"=>"ap-northeast-1b"},
"profile"=>"default-hvm",
"public-hostname"=>"",
"public-ipv4"=>"54.64.165.234",
"public-keys"=>
{"0"=>
{"openssh-key"=>
"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCBgoqZg320DAgdessGJXTadkkQ9HHd552na9nERPiOU36WU1DE83CHDrCi7rToPLji0M+l1Vi8yXUrqPkTeC2AY7HpbG2aY+7ReLtsZin+gB2+oEMk3UGQP29foG3AB6syy7n9lm71qz9q91tItaBMszVNH7oRC1a7ZB8eJx6hNAid8uD8zsvmldOLZ+rCWTRBJLbjEm3AYTFfduL/1wptA+/7u7CJ8rRCxg4Dfwja0APTZeyjL31w3AraGTlQL0IxxTjogVb1AoGbpWC8RjUfV/IAGJGntpIJF1J+tayDSCIpvic9oi9DqGmijZpnwisdVCn88o9yL9vJ7Wpj4iDt miya\n"}},
"reservation-id"=>"r-53e9b055",
"security-groups"=>"launch-wizard-4",
"services"=>{"domain"=>"amazonaws.com"}}
facter
If Facter is installed on the system, you can get information from it like this.
host_inventory['facter']['os']['name'] # => Fedora
host_inventory['facter']['os']['family'] # => RedHat
host_inventory['facter']['os']['release'] # => {"major"=>"24", "full"=>"24"}
filesystem
You can get file system information like this.
host_inventory['filesystem']['/dev/xvda1']['kb_size'] # => 8123812
host_inventory['filesystem']['/dev/xvda1']['kb_used'] # => 1094944
host_inventory['filesystem']['/dev/xvda1']['kb_available'] # => 6928620
host_inventory['filesystem']['/dev/xvda1']['percent_used'] # => 14%
host_inventory['filesystem']['/dev/xvda1']['mount'] # => /
On Solaris there are multiple instances of the file system swap. To provide access to every instance an integer, starting at 0 and incrementing by 1, is appended to the name.
host_inventory['filesystem']['swap0']['mount'] # => /etc/svc/volatile
host_inventory['filesystem']['swap1']['mount'] # => /tmp
fqdn
You can get FQDN like this.
host_inventory['fqdn'] # => localhost.localdomain
group
You can get group information like this.
host_inventory['group']['vagrant']['name'] # => vagrant
host_inventory['group']['vagrant']['gid'] # => 1001
host_inventory['group']['vagrant']['members'] # => []
hostname
You can get host name like this.
host_inventory['hostname'] # => localhost
kernel
You can get kernel information like this.
host_inventory['kernel']['machine'] # => x86_64
host_inventory['kernel']['name'] # => Linux
host_inventory['kernel']['release'] # => 3.13.0-83-generic
host_inventory['kernel']['version'] # => 3.13.0
host_inventory['kernel']['version_major'] # => 3.13
memory
You can get memory information like this.
host_inventory['memory']['swap'] # => {"cached"=>"0kB", "total"=>"0kB", "free"=>"0kB"}
host_inventory['memory']['total'] # => 1020044kB
host_inventory['memory']['free'] # => 506900kB
host_inventory['memory']['buffers'] # => 142640kB
host_inventory['memory']['cached'] # => 298484kB
host_inventory['memory']['active'] # => 402636kB
host_inventory['memory']['inactive'] # => 55024kB
host_inventory['memory']['dirty'] # => 80kB
host_inventory['memory']['writeback'] # => 0kB
host_inventory['memory']['anon_pages'] # => 16564kB
host_inventory['memory']['mapped'] # => 6076kB
host_inventory['memory']['slab'] # => 38688kB
host_inventory['memory']['slab_reclaimable'] # => 30356kB
host_inventory['memory']['slab_unreclaim'] # => 8332kB
host_inventory['memory']['page_tables'] # => 1948kB
host_inventory['memory']['nfs_unstable'] # => 0kB
host_inventory['memory']['bounce'] # => 0kB
host_inventory['memory']['commit_limit'] # => 510020kB
host_inventory['memory']['committed_as'] # => 56248kB
host_inventory['memory']['vmalloc_total'] # => 34359738367kB
host_inventory['memory']['vmalloc_used'] # => 2448kB
host_inventory['memory']['vmalloc_chunk'] # => 34359716791kB
ohai
If Ohai is installed on the system, you can get information from it like this.
host_inventory['ohai']['sessions']['by_session'] # => {"6"=>{"session"=>"6", "uid"=>"1001", "user"=>"vagrant", "seat"=>nil}}
host_inventory['ohai']['sessions']['by_user'] # => {"vagrant"=>[{"session"=>"6", "uid"=>"1001", "user"=>"vagrant", "seat"=>nil}]}
platform
You can get OS type like this.
host_inventory['platform'] # => redhat
platform_version
You can get OS version like this.
host_inventory['platform_version'] # => 6.5
user
You can get user information like this.
host_inventory['user']['vagrant']['name'] # => vagrant
host_inventory['user']['vagrant']['uid'] # => 1001
host_inventory['user']['vagrant']['gid'] # => 1001
host_inventory['user']['vagrant']['gecos'] # => ""
host_inventory['user']['vagrant']['directory'] # => /home/vagrant
host_inventory['user']['vagrant']['shell'] # => /bin/bash
virtualization
To find out if the host is running on a virtualized platform or in a container use the virtualization keyword.
host_inventory['virtualization'][:system] # => "docker"
block_device
You can get block devices.
host_inventory['block_device']['sda']['size'] # => 81920000
host_inventory['block_device'] is a hash which has keys and values like this.
{
"loop0" => {
"rotational" => "1",
"removable" => "0",
"size" => "0"
},
"ram0" => {
"rotational" => "1",
"removable" => "0",
"size" => "32768"
},
"sda" => {
"model" => "VBOX HARDDISK",
"rev" => "1.0",
"state" => "running",
"timeout" => "30",
"vendor" => "ATA",
"rotational" => "1",
"removable" => "0",
"size" => "81920000"
}