#
# MACROS
# these are methods available when eval'ing a value in the .json configuration
#
# This module is included in Config::Object
#
module LeapCli; module Config
module Macros
##
## NODES
##
#
# the list of all the nodes
#
def nodes
global.nodes
end
#
# returns a list of nodes that match the same environment
#
# if @node.environment is not set, we return other nodes
# where environment is not set.
#
def nodes_like_me
nodes[:environment => @node.environment]
end
##
## FILES
##
class FileMissing < Exception
attr_accessor :path, :options
def initialize(path, options={})
@path = path
@options = options
end
def to_s
@path
end
end
#
# inserts the contents of a file
#
def file(filename, options={})
if filename.is_a? Symbol
filename = [filename, @node.name]
end
filepath = Path.find_file(filename)
if filepath
if filepath =~ /\.erb$/
ERB.new(File.read(filepath), nil, '%<>').result(binding)
else
File.read(filepath)
end
else
raise FileMissing.new(Path.named_path(filename), options)
""
end
end
#
# like #file, but allow missing files
#
def try_file(filename)
return file(filename)
rescue FileMissing
return nil
end
#
# returns what the file path will be, once the file is rsynced to the server.
# an internal list of discovered file paths is saved, in order to rsync these files when needed.
#
# notes:
#
# * argument 'path' is relative to Path.provider/files or Path.provider_base/files
# * the path returned by this method is absolute
# * the path stored for use later by rsync is relative to Path.provider
# * if the path does not exist locally, but exists in provider_base, then the default file from
# provider_base is copied locally. this is required for rsync to work correctly.
#
def file_path(path)
if path.is_a? Symbol
path = [path, @node.name]
end
actual_path = Path.find_file(path)
if actual_path.nil?
Util::log 2, :skipping, "file_path(\"#{path}\") because there is no such file."
nil
else
if actual_path =~ /^#{Regexp.escape(Path.provider_base)}/
# if file is under Path.provider_base, we must copy the default file to
# to Path.provider in order for rsync to be able to sync the file.
local_provider_path = actual_path.sub(/^#{Regexp.escape(Path.provider_base)}/, Path.provider)
FileUtils.mkdir_p File.dirname(local_provider_path)
FileUtils.cp_r actual_path, local_provider_path
Util.log :created, Path.relative_path(local_provider_path)
actual_path = local_provider_path
end
if File.directory?(actual_path) && actual_path !~ /\/$/
actual_path += '/' # ensure directories end with /, important for building rsync command
end
relative_path = Path.relative_path(actual_path)
@node.file_paths << relative_path
@node.manager.provider.hiera_sync_destination + '/' + relative_path
end
end
#
# inserts a named secret, generating it if needed.
#
# manager.export_secrets should be called later to capture any newly generated secrets.
#
def secret(name, length=32)
@manager.secrets.set(name, Util::Secret.generate(length))
end
#
# return a fingerprint for a x509 certificate
#
def fingerprint(filename)
"SHA256: " + X509.fingerprint("SHA256", Path.named_path(filename))
end
##
## HOSTS
##
#
# records the list of hosts that are encountered for this node
#
def hostnames(nodes)
@referenced_nodes ||= ObjectList.new
if nodes.is_a? Config::Object
nodes = ObjectList.new nodes
end
nodes.each_node do |node|
@referenced_nodes[node.name] = node
end
nodes.values.collect {|node| node.domain.name}
end
#
# generates entries needed for updating /etc/hosts on a node, but only including the IPs of the
# other nodes we have encountered.
#
def hosts_file
return nil unless @referenced_nodes
entries = []
@referenced_nodes.each_node do |node|
entries << "#{node.ip_address} #{node.name} #{node.domain.internal} #{node.domain.full}"
end
entries.join("\n")
end
def known_hosts_file
return nil unless @referenced_nodes
entries = []
@referenced_nodes.each_node do |node|
hostnames = [node.name, node.domain.internal, node.domain.full, node.ip_address].join(',')
pub_key = Util::read_file([:node_ssh_pub_key,node.name])
if pub_key
entries << [hostnames, pub_key].join(' ')
end
end
entries.join("\n")
end
##
## STUNNEL
##
#
# stunnel configuration for the client side.
#
# +node_list+ is a ObjectList of nodes running stunnel servers.
#
# +port+ is the real port of the ultimate service running on the servers
# that the client wants to connect to.
#
# About ths stunnel puppet names:
#
# * accept_port is the port on localhost to which local clients
# can connect. it is auto generated serially.
# * connect_port is the port on the stunnel server to connect to.
# it is auto generated from the +port+ argument.
#
# The network looks like this:
#
# |------ stunnel client ---------------| |--------- stunnel server -----------------------|
# consumer app -> localhost:accept_port -> server:connect_port -> server:port -> service app
#
# generates an entry appropriate to be passed directly to
# create_resources(stunnel::service, hiera('..'), defaults)
#
def stunnel_client(node_list, port, options={})
@next_stunnel_port ||= 4000
hostnames(node_list) # record the hosts
node_list.values.inject(Config::ObjectList.new) do |hsh, node|
if node.name != self.name || options[:include_self]
hsh["#{node.name}#{port}"] = Config::Object[
'accept_port', @next_stunnel_port,
'connect', node.domain.internal,
'connect_port', stunnel_port(port)
]
@next_stunnel_port += 1
end
hsh
end
end
#
# generates a stunnel server entry.
#
# +port+ is the real port targeted service.
#
def stunnel_server(port)
{"accept" => stunnel_port(port), "connect" => "127.0.0.1:#{port}"}
end
#
# maps a real port to a stunnel port (used as the connect_port in the client config
# and the accept_port in the server config)
#
def stunnel_port(port)
port = port.to_i
if port < 50000
return port + 10000
else
return port - 10000
end
end
end
end; end