class Specinfra::Command::Base::Host

Public Class Methods

check_is_reachable(host, port, proto, timeout) click to toggle source
# File lib/specinfra/command/base/host.rb, line 13
def check_is_reachable(host, port, proto, timeout)
  if port.nil?
    "ping -w #{escape(timeout)} -c 2 -n #{escape(host)}"
  else
    "nc -w #{escape(timeout)} -vvvvz#{escape(proto[0].chr)} #{escape(host)} #{escape(port)}"
  end
end
check_is_resolvable(name, type) click to toggle source
# File lib/specinfra/command/base/host.rb, line 3
def check_is_resolvable(name, type)
  if type == "dns"
    %Q[lookup=$(nslookup -timeout=1 #{escape(name)} | grep -A1 'Name:' | grep Address | awk -F': ' '{print $2}'); if [ "$lookup" ]; then $(exit 0); else $(exit 1); fi]
  elsif type == "hosts"
    "sed 's/#.*$//' /etc/hosts | grep -w -- #{escape(name)} /etc/hosts"
  else
    "getent hosts #{escape(name)}"
  end
end
get_ipaddress(name) click to toggle source

getent hosts on a dualstack machine will most likely return the ipv6 address to ensure one can more cleary define the outcome the ipv{4,6}_address are used.

# File lib/specinfra/command/base/host.rb, line 24
def get_ipaddress(name)
  "getent hosts #{escape(name)} | awk '{print $1}'"
end
get_ipv4_address(name) click to toggle source
# File lib/specinfra/command/base/host.rb, line 27
def get_ipv4_address(name)
  # Will return multiple values pick the first and exit
  "getent ahostsv4 #{escape(name)} | awk '{print $1; exit}'"
end
get_ipv6_address(name) click to toggle source
# File lib/specinfra/command/base/host.rb, line 31
def get_ipv6_address(name)
  # Will return multiple values pick the first and exit
  "getent ahostsv6 #{escape(name)} | awk '{print $1; exit}'"
end