Add support for setting redis port and password

This commit adds options for setting redis port and password. Without this change it is not possible to specify the redis port or password.

lib/vmpooler.rb

@@ -86,8 +86,8 @@ module Vmpooler
     parsed_config
   end
 
-  def self.new_redis(host = 'localhost')
+  def self.new_redis(host = 'localhost', port = nil, password = nil)
-    Redis.new(host: host)
+    Redis.new(host: host, port: port, password: password)
   end
 
   def self.new_logger(logfile)

vmpooler

@@ -7,13 +7,15 @@ require 'lib/vmpooler'
 
 config = Vmpooler.config
 redis_host = config[:redis]['server']
+redis_port = config[:redis]['port']
+redis_password = config[:redis]['password']
 logger_file = config[:config]['logfile']
 
 metrics = Vmpooler.new_metrics(config)
 
 api = Thread.new do
   thr = Vmpooler::API.new
-  thr.helpers.configure(config, Vmpooler.new_redis(redis_host), metrics)
+  thr.helpers.configure(config, Vmpooler.new_redis(redis_host, redis_port, redis_password), metrics)
   thr.helpers.execute!
 end
 
@@ -21,7 +23,7 @@ manager = Thread.new do
   Vmpooler::PoolManager.new(
     config,
     Vmpooler.new_logger(logger_file),
-    Vmpooler.new_redis(redis_host),
+    Vmpooler.new_redis(redis_host, redis_port, redis_password),
     metrics
   ).execute!
 end