Chef attributes, roles and environment

gistfile1.json

### cookbooks/nova/attributes/default.rb:
# you should override controller_ip for a multi-node setup
default['nova']['controller_ip']      = "127.0.0.1"
default['nova']['db_ipaddress']       = node['mysql']['bind_address']
default['nova']['rabbitmq_ipaddress'] = node['nova']['controller_ip']
default['nova_api']['ipaddress']      = node['nova']['controller_ip']


[philwo@philwo ca-openstack]$ knife environment show stackcluster1 -fj
{
  "name": "stackcluster1",
  "description": "Playground cluster #1 (stacktest1, stacktest2, stacktest3)",
  "cookbook_versions": {
  },
  "json_class": "Chef::Environment",
  "chef_type": "environment",
  "default_attributes": {
  },
  "override_attributes": {
    "nova": {
      "controller_ip": "10.5.28.22"
    },
    "mysql": {
      "server_root_password": "ahFvF91JEsz8",
      "bind_address": "10.5.28.22"
    }
  }
}



[philwo@philwo ca-openstack]$ knife role show openstack_compute -fj
{
  "name": "openstack_compute",
  "description": "OpenStack compute node",
  "json_class": "Chef::Role",
  "default_attributes": {
    "nova": {
      "controller_ip": "10.5.28.22"
    },
    "mysql": {
      "server_root_password": "ahFvF91JEsz8",
      "bind_address": "10.5.28.22"
    }
  },
  "override_attributes": {
    "nova": {
      "controller_ip": "10.5.28.22"
    },
    "mysql": {
      "server_root_password": "ahFvF91JEsz8",
      "bind_address": "10.5.28.22"
    }
  },
  "chef_type": "role",
  "run_list": [
    "recipe[apt]",
    "role[ntp_client]",
    "recipe[mysql::client]",
    "recipe[nova::common]",
    "recipe[nova::compute]"
  ],
  "env_run_lists": {
  }
}



[philwo@philwo ca-openstack]$ knife node show stacktest2 -fj
{
  "name": "stacktest2",
  "chef_environment": "stackcluster1",
  "run_list": [
    "role[openstack_compute]"
  ],
  "normal": {
    "postgresql": {
      "dir": "/etc/postgresql/9.1/main"
    },
    "include_attributes": "nova",
    "mysql": {
      "old_passwords": 0,
      "socket": "/var/run/mysqld/mysqld.sock",
      "pid_file": "/var/run/mysqld/mysqld.pid",
      "conf_dir": "/etc/mysql",
      "grants_path": "/etc/mysql/grants.sql"
    },
    "tags": [

    ]
  }
}