问题描述
求教如何在如下数据中取PublicPort或Image
[#<Docker::Container:0x00000005195578 @id='8aba2f87cdf5e5d340f30fef8e5df8f58d990eab1c70583d4fef3a8fa83de3f2', @info={'Command'=>'/bin/bash', 'Created'=>1427722904, 'Image'=>'ddddd:latest', 'Names'=>['/clever_pike'], 'Ports'=>[{'IP'=>'0.0.0.0', 'PrivatePort'=>80, 'PublicPort'=>10280, 'Type'=>'tcp'}], 'Status'=>'Up 10 days', 'id'=>'8aba2f87cdf5e5d340f30fef8e5df8f58d990eab1c70583d4fef3a8fa83de3f2'}, @connection=#<Docker::Connection:0x00000004aaadf8 @url='unix:///', @options={:socket=>'/var/run/docker.sock'}>>, #<Docker::Container:0x00000005195488 @id='c95642d254f1b716debbc8f5381b1234aff69c92db87a43e9b6f64216d1471b3', @info={'Command'=>'/bin/bash', 'Created'=>1427722902, 'Image'=>'bbbbbbb:latest', 'Names'=>['/serene_heisenberg'], 'Ports'=>[{'IP'=>'0.0.0.0', 'PrivatePort'=>80, 'PublicPort'=>10180, 'Type'=>'tcp'}], 'Status'=>'Up 10 days', 'id'=>'c95642d254f1b716debbc8f5381b1234aff69c92db87a43e9b6f64216d1471b3'}, @connection=#<Docker::Connection:0x00000004aaadf8 @url='unix:///', @options={:socket=>'/var/run/docker.sock'}>>]
以上直接调用docker-api，d=Docker::Container.all获得，相应源代码如下。
rubydef self.all(opts = {}, conn = Docker.connection) hashes = Docker::Util.parse_json(conn.get(’/containers/json’, opts)) || [] hashes.map { |hash| new(conn, hash) }end
问题解答
回答1：不是很明白你想说什么，不过hash的取值很简单：
for example
a = {}b = {}b['name'] = 'bla'b['age'] = '12'a{'buddy'} = ba['buddy']['name'] # => 'bla'
