diff options
| -rw-r--r-- | provider_base/lib/macros.rb | 14 | ||||
| -rw-r--r-- | provider_base/lib/macros/core.rb | 86 | ||||
| -rw-r--r-- | provider_base/lib/macros/files.rb | 79 | ||||
| -rw-r--r-- | provider_base/lib/macros/haproxy.rb | 68 | ||||
| -rw-r--r-- | provider_base/lib/macros/hosts.rb | 63 | ||||
| -rw-r--r-- | provider_base/lib/macros/nodes.rb | 88 | ||||
| -rw-r--r-- | provider_base/lib/macros/secrets.rb | 39 | ||||
| -rw-r--r-- | provider_base/lib/macros/stunnel.rb | 95 |
8 files changed, 532 insertions, 0 deletions
diff --git a/provider_base/lib/macros.rb b/provider_base/lib/macros.rb new file mode 100644 index 00000000..854b92b5 --- /dev/null +++ b/provider_base/lib/macros.rb @@ -0,0 +1,14 @@ +# +# MACROS +# +# The methods in these files are available in the context of a .json configuration file. +# (The module LeapCli::Macro is included in Config::Object) +# + +require_relative 'macros/core' +require_relative 'macros/files' +require_relative 'macros/haproxy' +require_relative 'macros/hosts' +require_relative 'macros/nodes' +require_relative 'macros/secrets' +require_relative 'macros/stunnel' diff --git a/provider_base/lib/macros/core.rb b/provider_base/lib/macros/core.rb new file mode 100644 index 00000000..d4d9171f --- /dev/null +++ b/provider_base/lib/macros/core.rb @@ -0,0 +1,86 @@ +# encoding: utf-8 + +module LeapCli + module Macro + + # + # return a fingerprint for a x509 certificate + # + def fingerprint(filename) + "SHA256: " + X509.fingerprint("SHA256", Path.named_path(filename)) + end + + # + # Creates a hash from the ssh key info in users directory, for use in + # updating authorized_keys file. Additionally, the 'monitor' public key is + # included, which is used by the monitor nodes to run particular commands + # remotely. + # + def authorized_keys + hash = {} + keys = Dir.glob(Path.named_path([:user_ssh, '*'])) + keys.sort.each do |keyfile| + ssh_type, ssh_key = File.read(keyfile, :encoding => 'UTF-8').strip.split(" ") + name = File.basename(File.dirname(keyfile)) + hash[name] = { + "type" => ssh_type, + "key" => ssh_key + } + end + ssh_type, ssh_key = File.read(Path.named_path(:monitor_pub_key), :encoding => 'UTF-8').strip.split(" ") + hash[Leap::Platform.monitor_username] = { + "type" => ssh_type, + "key" => ssh_key + } + hash + end + + def assert(assertion) + if instance_eval(assertion) + true + else + raise AssertionFailed.new(assertion) + end + end + + # + # applies a JSON partial to this node + # + def apply_partial(partial_path) + manager.partials(partial_path).each do |partial_data| + self.deep_merge!(partial_data) + end + end + + # + # If at first you don't succeed, then it is time to give up. + # + # try{} returns nil if anything in the block throws an exception. + # + # You can wrap something that might fail in `try`, like so. + # + # "= try{ nodes[:services => 'tor'].first.ip_address } " + # + def try(&block) + yield + rescue NoMethodError + nil + end + + protected + + # + # returns a node list, if argument is not already one + # + def listify(node_list) + if node_list.is_a? Config::ObjectList + node_list + elsif node_list.is_a? Config::Object + Config::ObjectList.new(node_list) + else + raise ArgumentError, 'argument must be a node or node list, not a `%s`' % node_list.class, caller + end + end + + end +end diff --git a/provider_base/lib/macros/files.rb b/provider_base/lib/macros/files.rb new file mode 100644 index 00000000..0a491325 --- /dev/null +++ b/provider_base/lib/macros/files.rb @@ -0,0 +1,79 @@ +# encoding: utf-8 + +## +## FILES +## + +module LeapCli + module Macro + + # + # 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$/ + ERB.new(File.read(filepath, :encoding => 'UTF-8'), nil, '%<>').result(binding) + else + File.read(filepath, :encoding => 'UTF-8') + end + else + raise FileMissing.new(Path.named_path(filename), options) + "" + end + end + + # + # like #file, but allow missing files + # + def try_file(filename) + return file(filename) + rescue FileMissing + return nil + end + + # + # returns what the file path will be, once the file is rsynced to the server. + # an internal list of discovered file paths is saved, in order to rsync these files when needed. + # + # notes: + # + # * argument 'path' is relative to Path.provider/files or Path.provider_base/files + # * the path returned by this method is absolute + # * the path stored for use later by rsync is relative to Path.provider + # * if the path does not exist locally, but exists in provider_base, then the default file from + # provider_base is copied locally. this is required for rsync to work correctly. + # + def file_path(path) + if path.is_a? Symbol + path = [path, @node.name] + end + actual_path = Path.find_file(path) + if actual_path.nil? + Util::log 2, :skipping, "file_path(\"#{path}\") because there is no such file." + nil + else + if actual_path =~ /^#{Regexp.escape(Path.provider_base)}/ + # if file is under Path.provider_base, we must copy the default file to + # to Path.provider in order for rsync to be able to sync the file. + local_provider_path = actual_path.sub(/^#{Regexp.escape(Path.provider_base)}/, Path.provider) + FileUtils.mkdir_p File.dirname(local_provider_path), :mode => 0700 + FileUtils.install actual_path, local_provider_path, :mode => 0600 + Util.log :created, Path.relative_path(local_provider_path) + actual_path = local_provider_path + end + if File.directory?(actual_path) && actual_path !~ /\/$/ + 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 + + end +end
\ No newline at end of file diff --git a/provider_base/lib/macros/haproxy.rb b/provider_base/lib/macros/haproxy.rb new file mode 100644 index 00000000..db0d4db8 --- /dev/null +++ b/provider_base/lib/macros/haproxy.rb @@ -0,0 +1,68 @@ +# encoding: utf-8 + +## +## HAPROXY +## + +module LeapCli + module Macro + + # + # creates a hash suitable for configuring haproxy. the key is the node name of the server we are proxying to. + # + # * node_list - a hash of nodes for the haproxy servers + # * stunnel_client - contains the mappings to local ports for each server node. + # * non_stunnel_port - in case self is included in node_list, the port to connect to. + # + # 1000 weight is used for nodes in the same location. + # 100 otherwise. + # + def haproxy_servers(node_list, stunnel_clients, non_stunnel_port=nil) + default_weight = 10 + local_weight = 100 + + # record the hosts_file + hostnames(node_list) + + # create a simple map for node name -> local stunnel accept port + accept_ports = stunnel_clients.inject({}) do |hsh, stunnel_entry| + name = stunnel_entry.first.sub /_[0-9]+$/, '' + hsh[name] = stunnel_entry.last['accept_port'] + hsh + end + + # if one the nodes in the node list is ourself, then there will not be a stunnel to it, + # but we need to include it anyway in the haproxy config. + if node_list[self.name] && non_stunnel_port + accept_ports[self.name] = non_stunnel_port + end + + # create the first pass of the servers hash + servers = node_list.values.inject(Config::ObjectList.new) do |hsh, node| + weight = default_weight + if self['location'] && node['location'] + if self.location['name'] == node.location['name'] + weight = local_weight + end + end + hsh[node.name] = Config::Object[ + 'backup', false, + 'host', 'localhost', + 'port', accept_ports[node.name] || 0, + 'weight', weight + ] + hsh + end + + # if there are some local servers, make the others backup + if servers.detect{|k,v| v.weight == local_weight} + servers.each do |k,server| + server['backup'] = server['weight'] == default_weight + end + end + + return servers + end + + end +end
\ No newline at end of file diff --git a/provider_base/lib/macros/hosts.rb b/provider_base/lib/macros/hosts.rb new file mode 100644 index 00000000..8a4058a5 --- /dev/null +++ b/provider_base/lib/macros/hosts.rb @@ -0,0 +1,63 @@ +# encoding: utf-8 + +module LeapCli + module Macro + + ## + ## HOSTS + ## + + # + # records the list of hosts that are encountered for this node + # + def hostnames(nodes) + @referenced_nodes ||= Config::ObjectList.new + nodes = listify(nodes) + nodes.each_node do |node| + @referenced_nodes[node.name] ||= node + end + return nodes.values.collect {|node| node.domain.name} + end + + # + # Generates entries needed for updating /etc/hosts on a node (as a hash). + # + # Argument `nodes` can be nil or a list of nodes. If nil, only include the + # IPs of the other nodes this @node as has encountered (plus all mx nodes). + # + # Also, for virtual machines, we use the local address if this @node is in + # the same location as the node in question. + # + # We include the ssh public key for each host, so that the hash can also + # be used to generate the /etc/ssh/known_hosts + # + def hosts_file(nodes=nil) + if nodes.nil? + if @referenced_nodes && @referenced_nodes.any? + nodes = @referenced_nodes + nodes = nodes.merge(nodes_like_me[:services => 'mx']) # all nodes always need to communicate with mx nodes. + end + end + return {} unless nodes + hosts = {} + my_location = @node['location'] ? @node['location']['name'] : nil + nodes.each_node do |node| + hosts[node.name] = {'ip_address' => node.ip_address, 'domain_internal' => node.domain.internal, 'domain_full' => node.domain.full} + node_location = node['location'] ? node['location']['name'] : nil + if my_location == node_location + if facts = @node.manager.facts[node.name] + if facts['ec2_public_ipv4'] + hosts[node.name]['ip_address'] = facts['ec2_public_ipv4'] + end + end + end + host_pub_key = Util::read_file([:node_ssh_pub_key,node.name]) + if host_pub_key + hosts[node.name]['host_pub_key'] = host_pub_key + end + end + hosts + end + + end +end
\ No newline at end of file diff --git a/provider_base/lib/macros/nodes.rb b/provider_base/lib/macros/nodes.rb new file mode 100644 index 00000000..0c6668a0 --- /dev/null +++ b/provider_base/lib/macros/nodes.rb @@ -0,0 +1,88 @@ +# encoding: utf-8 + +## +## node related macros +## + +module LeapCli + module Macro + + # + # the list of all the nodes + # + def nodes + global.nodes + end + + # + # grab an environment appropriate provider + # + def provider + global.env(@node.environment).provider + 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 + + # + # returns a list of nodes that match the location name + # and environment of @node. + # + def nodes_near_me + if @node['location'] && @node['location']['name'] + nodes_like_me['location.name' => @node.location.name] + else + nodes_like_me['location' => nil] + end + end + + # + # + # picks a node out from the node list in such a way that: + # + # (1) which nodes picked which nodes is saved in secrets.json + # (2) when other nodes call this macro with the same node list, they are guaranteed to get a different node + # (3) if all the nodes in the pick_node list have been picked, remaining nodes are distributed randomly. + # + # if the node_list is empty, an exception is raised. + # if node_list size is 1, then that node is returned and nothing is + # memorized via the secrets.json file. + # + # `label` is needed to distinguish between pools of nodes for different purposes. + # + # TODO: more evenly balance after all the nodes have been picked. + # + def pick_node(label, node_list) + if node_list.any? + if node_list.size == 1 + return node_list.values.first + else + secrets_key = "pick_node(:#{label},#{node_list.keys.sort.join(',')})" + secrets_value = @manager.secrets.retrieve(secrets_key, @node.environment) || {} + secrets_value[@node.name] ||= begin + node_to_pick = nil + node_list.each_node do |node| + next if secrets_value.values.include?(node.name) + node_to_pick = node.name + end + node_to_pick ||= secrets_value.values.shuffle.first # all picked already, so pick a random one. + node_to_pick + end + picked_node_name = secrets_value[@node.name] + @manager.secrets.set(secrets_key, secrets_value, @node.environment) + return node_list[picked_node_name] + end + else + raise ArgumentError.new('pick_node(node_list): node_list cannot be empty') + end + end + + end +end
\ No newline at end of file diff --git a/provider_base/lib/macros/secrets.rb b/provider_base/lib/macros/secrets.rb new file mode 100644 index 00000000..51bf3971 --- /dev/null +++ b/provider_base/lib/macros/secrets.rb @@ -0,0 +1,39 @@ +# encoding: utf-8 + +require 'base32' + +module LeapCli + module Macro + + # + # inserts a named secret, generating it if needed. + # + # manager.export_secrets should be called later to capture any newly generated secrets. + # + # +length+ is the character length of the generated password. + # + def secret(name, length=32) + @manager.secrets.set(name, Util::Secret.generate(length), @node[:environment]) + end + + # inserts a base32 encoded secret + def base32_secret(name, length=20) + @manager.secrets.set(name, Base32.encode(Util::Secret.generate(length)), @node[:environment]) + end + + # Picks a random obfsproxy port from given range + def rand_range(name, range) + @manager.secrets.set(name, rand(range), @node[:environment]) + end + + # + # inserts an hexidecimal secret string, generating it if needed. + # + # +bit_length+ is the bits in the secret, (ie length of resulting hex string will be bit_length/4) + # + def hex_secret(name, bit_length=128) + @manager.secrets.set(name, Util::Secret.generate_hex(bit_length), @node[:environment]) + end + + end +end
\ No newline at end of file diff --git a/provider_base/lib/macros/stunnel.rb b/provider_base/lib/macros/stunnel.rb new file mode 100644 index 00000000..f16308c7 --- /dev/null +++ b/provider_base/lib/macros/stunnel.rb @@ -0,0 +1,95 @@ +## +## STUNNEL +## + +# +# About stunnel +# -------------------------- +# +# The network looks like this: +# +# From the client's perspective: +# +# |------- stunnel client --------------| |---------- stunnel server -----------------------| +# consumer app -> localhost:accept_port -> connect:connect_port -> ?? +# +# From the server's perspective: +# +# |------- stunnel client --------------| |---------- stunnel server -----------------------| +# ?? -> *:accept_port -> localhost:connect_port -> service +# + +module LeapCli + module Macro + + # + # 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. + # + # * 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. + # + # generates an entry appropriate to be passed directly to + # create_resources(stunnel::service, hiera('..'), defaults) + # + # local ports are automatically generated, starting at 4000 + # and incrementing in sorted order (by node name). + # + def stunnel_client(node_list, port, options={}) + @next_stunnel_port ||= 4000 + node_list = listify(node_list) + hostnames(node_list) # record the hosts + result = Config::ObjectList.new + node_list.each_node do |node| + if node.name != self.name || options[:include_self] + result["#{node.name}_#{port}"] = Config::Object[ + 'accept_port', @next_stunnel_port, + 'connect', node.domain.internal, + 'connect_port', stunnel_port(port), + 'original_port', port + ] + @next_stunnel_port += 1 + end + end + result + end + + # + # generates a stunnel server entry. + # + # +port+ is the real port targeted service. + # + # * `accept_port` is the publicly bound port + # * `connect_port` is the port that the local service is running on. + # + def stunnel_server(port) + { + "accept_port" => stunnel_port(port), + "connect_port" => port + } + end + + private + + # + # 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
\ No newline at end of file |