fix test of Node

core/interface/Node.coffee

@@ -2,6 +2,8 @@
 {config, logger} = app
 {available_plugins} = config.plugin
 
+id_key = fs.readFileSync config.ssh.id_key
+
 module.exports = class Node
   name: ''
   master: false
@@ -117,7 +119,7 @@ module.exports = class Node
     connection.connect
       host: @info.host
       username: 'rpadmin'
-      privateKey: fs.readFileSync '/home/rpadmin/.ssh/id_rsa'
+      privateKey: id_key
 
   runCommandRemote: (command, callback) ->
     @execRemote command, {}, callback

sample/core.config.coffee

@@ -49,6 +49,9 @@ module.exports =
 
       billing: {}
 
+  ssh:
+    id_key: '/home/rpadmin/.ssh/id_rsa'
+
   nodes:
     master:
       host: 'localhost'

sample/rpvhost.config.coffee

@@ -58,6 +58,9 @@ module.exports =
           price: 10 / 30
           prepaid: true
 
+  ssh:
+    id_key: '/home/rpadmin/.ssh/id_rsa'
+
   nodes:
     master:
       host: 'localhost'

sample/shadowsocks.config.coffee

@@ -46,6 +46,9 @@ module.exports =
           bucket: 100 * 1000 * 1000
           price: 0.06
 
+  ssh:
+    id_key: '/home/rpadmin/.ssh/id_rsa'
+
   nodes:
     master:
       host: 'localhost'

test/env.coffee

@@ -40,8 +40,8 @@ config.web.listen = 12558
 if process.env.TRAVIS == 'true'
   config.mongodb.user = undefined
   config.mongodb.password = undefined
-
   config.redis.password = undefined
+  config.ssh.id_key = '/home/travis-ci/.ssh/id_rsa'
 
 global.isPluginEnable = (name) ->
   return name in config.plugin.available_plugins