This library cookbook adds the class Chef::IPFinder. It allows you to find IP addresses in a specific node, given an IP scope or a network interface. It also has some utility methods to discover all the IP addresses in a node, or to guess the scope of a given ip address.
You must include the recipe ip_finder::default in the node's run list before using Chef::IPFinder.
Chef::IPFinder supports finding IP addresses by a list of properties called scope. Properties can be IP protocol version (ie. ipv4, ipv6), network addressing private, global, multicast, unicast, etc.
For instance, you can build queries like these:
Find all IPv4 addresses belonging to a private network:
IPFinder.find(node, :private_ipv4)
#=> ['10.2.123.14', '192.168.1.14']Find a public IPv6 address:
IPFinder.find_one(node, :public_ipv6)
#=> '2600:3c00::f03c:91ff:fedf:f63c'Find a multicast IPv4 address:
IPFinder.find_one(node, :multicast_ipv4)
#=> '239.12.11.123'Find all IPv4 addresses in node separated by scope:
IPFinder.find_all(node)
#=> { "node" => ["127.0.0.1"], "private" => ["10.20.112.32"], "public" => ["200.23.142.11"] }Find all IPv6 addresses in node separated by scope:
IPFinder.find_all(node, :ipv6)
#=> { "public" => "2600:3c00::f03c:91ff:fedf:f63c" }You can find IP addresses attached to a certain network interface like so:
Find a private IPv4 address attached to eth1:
IPFinder.find_by_interface(node, 'eth1', :private_ipv4)
#=> '192.168.1.14'Find an IPv6 address attached to eth0:
IPFinder.find_by_interface(node, 'eth0', :ipv6)
#=> '2600:3c00::f03c:91ff:fedf:f63c'Find an IPv4 address attached to the loopback interface lo:
IPFinder.find_by_interface(node, 'lo')
#=> '127.0.0.1'Copyright (c) 2013 Restorando
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