host resource

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Use the host Chef InSpec audit resource to test the specific host name and its availability. This test includes the internet protocols and ports on which the respective host name must be available.

Availability

Installation

The Chef InSpec distributes this resource.

Version

This resource is available from InSpec version 1.0.

Syntax

A host resource block declares a host name, a port, and a protocol.

describe host('example.com', port: 80, protocol: 'tcp') do
  it { should be_reachable }
  it { should be_resolvable }
  its('ipaddress') { should include '12.34.56.78' }
end

where

• host() must specify a host name. The port number and protocol are optional values.
• example.com is the host name.
• port is the port number.
• protocol is the internet protocol, TCP (protocol: 'tcp'), UDP (protocol: 'udp'), and ICMP (protocol: 'icmp')

Properties

ipaddress

The ipaddress property returns the IP addresses of the host.

its('ipaddress') { should include '93.184.216.34' }

ipv4_address

The ipv4_address property returns the IPv4 address of the host.

its('ipv4_address') { should include '93.184.216.34' }

ipv6_address

The ipv6_address property returns the IPv6 addresses of the host.

its('ipv6_address') { should include '2404:6800:4009:82a::200e' }

connection

The connection property returns the connection string.

its('connection') { should match /connection refused/ }

protocol

The protocol property returns the protocol the specified host uses.

its('protocol') { should eq 'TCP' }

socket property returns the socket value of the specified host

its('socket') { should match /STATUS_OK/ }

Matchers

This Chef InSpec audit resource has the following special matchers. For a full list of available matchers, please visit our matchers page.

be_reachable

The be_reachable matcher tests if the host name is available.

it { should be_reachable }

be_resolvable

The be_resolvable matcher tests for host name resolution. For example, “resolvable to an IP address”.

it { should be_resolvable }

Examples

Verify host name is resolvable to a specific IP address

describe host('example.com') do
  its('ipaddress') { should include '93.184.216.34' }
end

Verify host name is resolvable to a specific IPv4 address

describe host('example.com') do
  its('ipv4_address') { should include '93.184.216.34' }
end

Verify host name is resolvable to a specific IPv6 address

describe host('example.com') do
  its('ipv6_address') { should include '2404:6800:4009:82a::200e' }
end

Verify a specific IP address can be resolved

describe host('example.com') do
  it { should be_resolvable }
  its('ipaddress') { should include '93.184.216.34' }
end

Verify host name is reachable over a specific protocol and port number

describe host('example.com', port: 80, protocol: 'tcp') do
  it { should be_reachable }
end

Review the connection setup and socket contents when checking reachability

describe host('example.com', port: 12345, protocol: 'tcp') do
  it { should be_reachable }
  its('connection') { should_not match /connection refused/ }
  its('socket') { should match /STATUS_OK/ }
end