Ubuntu 14.04快速入门

Question

我正在为一些内置的OpsWorks烹饪书编写Chef包装器。我正在使用Berkshelf从他们的github repo克隆OpsWorks烹饪书。

这是我的Berksfile：

source 'https://supermarket.getchef.com'

metadata

def opsworks_cookbook(name)
  cookbook name, github: 'aws/opsworks-cookbooks', branch: 'release-chef-11.10', rel: name
end

%w(dependencies scm_helper mod_php5_apache2 ssh_users opsworks_agent_monit
   opsworks_java gem_support opsworks_commons opsworks_initial_setup
   opsworks_nodejs opsworks_aws_flow_ruby
   deploy mysql memcached).each do |cb|
  opsworks_cookbook cb
end

我的metadata.rb：

depends 'deploy'
depends 'mysql'
depends 'memcached'

问题是，当我尝试覆盖依赖于opsworks哈希中的node键的属性时，我得到了：

NoMethodError
-------------
undefined method `[]=' for nil:NilClass

OpsWorks有一大堆预配方依赖项，可以创建这些键并进行大量设置。我想找到一种方法来拉入这些服务并在我的Kitchen实例上运行它们或者以我实际可以测试我的食谱的方式模拟它们。

有办法做到这一点吗？

Answer 1

我强烈建议您查看Mike Greiling的博客文章Simplify OpsWorks Development With Packer和他的github repo opsworks-vm ，它们可以帮助您模拟整个opsworks堆栈，包括安装opsworks代理，以便您可以还可以同时测试应用部署配方，多个层，多个实例等。这真是令人印象深刻。

Ubuntu 14.04快速入门

注意：这不能从ubuntu虚拟机完成，因为virtualbox不支持64位计算机的嵌套虚拟化。

安装ChefDK
1. mkdir /tmp/packages && cd /tmp/packages
2. wget https://opscode-omnibus-packages.s3.amazonaws.com/ubuntu/12.04/x86_64/chefdk_0.8.1-1_amd64.deb
3. sudo dpkg -i chefdk_0.8.0-1_amd64.deb
4. cd /opt/chefdk/
5. chef verify
6. which ruby
7. echo 'eval "$(chef shell-init bash)"' >> ~/.bash_profile && source ~/.bash_profile
安装VirtualBox
1. echo 'deb http://download.virtualbox.org/virtualbox/debian vivid contrib' > /etc/apt/sources.list.d/virtualbox.list
2. wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -
3. sudo apt-get update -qqy
4. sudo apt-get install virtualbox-5.0 dkms
安装Vagrant
1. cd /tmp/packages
2. wget https://dl.bintray.com/mitchellh/vagrant/vagrant_1.7.4_x86_64.deb
3. sudo dpkg -i vagrant_1.7.4_x86_64.deb
4. vagrant plugin install vagrant-berkshelf
5. vagrant plugin install vagrant-omnibus
6. vagrant plugin list
安装Packer
1. mkdir /opt/packer && cd /opt/packer
2. wget https://dl.bintray.com/mitchellh/packer/packer_0.8.6_linux_amd64.zip
3. unzip packer_0.8.6_linux_amd64.zip
4. echo 'PATH=$PATH:/opt/packer' >> ~/.bash_profile && source ~/.bash_profile
使用Packer构建Mike Greiling的opsworks-vm虚拟框图像
1. mkdir ~/packer && cd ~/packer
2. git clone https://github.com/pixelcog/opsworks-vm.git
3. cd opsworks-vm
4. rake build install
5. 这会将新的虚拟机vm安装到〜/ .vagrant.d / boxes / ubuntu1404-opsworks /

要模拟单个opsworks实例，请创建一个新的Vagrantfile，如下所示：

Vagrant.configure("2") do |config|
  config.vm.box = "ubuntu1404-opsworks"
  config.vm.provision :opsworks, type: 'shell', args: 'path/to/dna.json'
end

dna.json文件路径是相对于Vagrantfile设置的，应包含您希望发送给OpsWorks Chef的任何JSON数据。

例如：

{
  "deploy": {
    "my-app": {
      "application_type": "php",
      "scm": {
        "scm_type": "git",
        "repository": "path/to/my-app"
      }
    }
  },
  "opsworks_custom_cookbooks": {
    "enabled": true,
    "scm": {
      "repository": "path/to/my-cookbooks"
    },
    "recipes": [
      "recipe[opsworks_initial_setup]",
      "recipe[dependencies]",
      "recipe[mod_php5_apache2]",
      "recipe[deploy::default]",
      "recipe[deploy::php]",
      "recipe[my_custom_cookbook::configure]"
    ]
  }
}

要模拟多个opsworks实例并包含图层，请参阅下面包含AWS OpsWorks "Getting Started" Example的stack.json。

Vagrantfile（适用于多个实例）

Vagrant.configure("2") do |config|

  config.vm.box = "ubuntu1404-opsworks"

  # Create the php-app layer
  config.vm.define "app" do |layer|

    layer.vm.provision "opsworks", type:"shell", args:[
      'ops/dna/stack.json',
      'ops/dna/php-app.json'
    ]

    # Forward port 80 so we can see our work
    layer.vm.network "forwarded_port", guest: 80, host: 8080
    layer.vm.network "private_network", ip: "10.10.10.10"
  end

  # Create the db-master layer
  config.vm.define "db" do |layer|

    layer.vm.provision "opsworks", type:"shell", args:[
      'ops/dna/stack.json',
      'ops/dna/db-master.json'
    ]

    layer.vm.network "private_network", ip: "10.10.10.20"
  end
end

stack.json

{
  "opsworks": {
    "layers": {
      "php-app": {
        "instances": {
          "php-app1": {"private-ip": "10.10.10.10"}
        }
      },
      "db-master": {
        "instances": {
          "db-master1": {"private-ip": "10.10.10.20"}
        }
      }
    }
  },
  "deploy": {
    "simple-php": {
      "application_type": "php",
      "document_root": "web",
      "scm": {
        "scm_type": "git",
        "repository": "dev/simple-php"
      },
      "memcached": {},
      "database": {
        "host": "10.10.10.20",
        "database": "simple-php",
        "username": "root",
        "password": "correcthorsebatterystaple",
        "reconnect": true
      }
    }
  },
  "mysql": {
    "server_root_password": "correcthorsebatterystaple",
    "tunable": {"innodb_buffer_pool_size": "256M"}
  },
  "opsworks_custom_cookbooks": {
    "enabled": true,
    "scm": {
      "repository": "ops/cookbooks"
    }
  }
}

对于那些不熟悉流浪汉的人，你只需要vagrant up来启动实例。然后，您可以在本地修改您的食谱，并通过使用vagrant provision.对现有实例重新运行厨师来应用任何更改您可以执行vagrant destroy和vagrant up从头开始

Answer 2

您必须手动执行此操作。您可以向.kitchen.yml添加任意属性，只需使用OpsWorks计算机并记录您需要的值，直接使用它们或将其调整为可用的测试数据。

在使用Kitchen和Chef进行本地开发时，如何模拟OpsWorks特定服务/依赖项？

2 个答案:

Ubuntu 14.04快速入门