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Diffstat (limited to 'lib/leap_cli/macros/stunnel.rb')
| -rw-r--r-- | lib/leap_cli/macros/stunnel.rb | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/lib/leap_cli/macros/stunnel.rb b/lib/leap_cli/macros/stunnel.rb new file mode 100644 index 00000000..f16308c7 --- /dev/null +++ b/lib/leap_cli/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
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