Class: Knifecosmic::CosmicStackCreate

Inherits:
Chef::Knife show all
Includes:
Chef::Knife::KnifecosmicBase, Chef::Knife::KnifecosmicBaseList
Defined in:
lib/chef/knife/cosmic_stack_create.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Chef::Knife::KnifecosmicBaseList

included, #list_object, #list_object_fields, #output_format

Methods included from Chef::Knife::KnifecosmicBase

included

Instance Attribute Details

#current_stack ⇒ Object

Returns the value of attribute current_stack.



25
26
27
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 25

def current_stack
  @current_stack
end

Instance Method Details

#create_server(server) ⇒ Object 



108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 108

def create_server(server)

  cmd = Knifecosmic::CosmicServerCreate.new([server[:name]])
  # configure and run command
  # TODO: validate parameters
  cmd.config[:cosmic_url] = config[:cosmic_url]
  cmd.config[:cosmic_api_key] = config[:cosmic_api_key]
  cmd.config[:cosmic_secret_key] = config[:cosmic_secret_key]
  cmd.config[:cosmic_proxy] = config[:cosmic_proxy]
  cmd.config[:cosmic_no_ssl_verify] = config[:cosmic_no_ssl_verify]
  cmd.config[:cosmic_project] = config[:cosmic_project]
  cmd.config[:ssh_user] = config[:ssh_user]
  cmd.config[:ssh_password] = config[:ssh_password]
  cmd.config[:ssh_port] = server[:ssh_port] || locate_config_value(:ssh_port) || "22"
  cmd.config[:identity_file] = config[:identity_file]
  cmd.config[:keypair] = server[:keypair]
  cmd.config[:cosmic_template] = server[:template] if server[:template]
  cmd.config[:cosmic_service] = server[:service] if server[:service]
  cmd.config[:cosmic_zone] = server[:zone] if server[:zone]
  server.has_key?(:public_ip) ? cmd.config[:public_ip] = server[:public_ip] : cmd.config[:no_public_ip] = true
  cmd.config[:ik_private_ip] = server[:private_ip] if server[:private_ip]
  cmd.config[:bootstrap] = server[:bootstrap] if server.has_key?(:bootstrap)
  cmd.config[:bootstrap_protocol] = server[:bootstrap_protocol] || "ssh"
  cmd.config[:distro] = server[:distro] || "chef-full"
  cmd.config[:template_file] = server[:template_file] if server.has_key?(:template_file)
  cmd.config[:no_host_key_verify] = server[:no_host_key_verify] if server.has_key?(:no_host_key_verify)
  cmd.config[:cosmic_networks] = server[:networks].split(/[\s,]+/) if server[:networks]
  cmd.config[:run_list] = server[:run_list].split(/[\s,]+/) if server[:run_list]
  cmd.config[:port_rules] = server[:port_rules].split(/[\s,]+/) if server[:port_rules]
  if current_stack[:environment]
    cmd.config[:environment] = current_stack[:environment]
    Chef::Config[:environment] = current_stack[:environment]
  end

  cmd.run_with_pretty_exceptions
end

#create_stack(stack) ⇒ Object 



83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 83

def create_stack(stack)
  @current_stack = Mash.new(stack)
  current_stack[:servers].each do |server|
    if server[:name]
      # create server(s)
      names = server[:name].split(/[\s,]+/)
      names.each do |n|
        if (config[:skip_existing] && connection.get_server(n))
          ui.msg(ui.color("\nServer #{n} already exists; skipping create...", :yellow))
        else
          s = Mash.new(server)
          s[:name] = n
          create_server(s)
        end
      end

    end

    # execute actions
    run_actions server[:actions]
  end

  print_local_hosts
end

#find_public_ips(query) ⇒ Object 



253
254
255
256
257
258
259
260
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 253

def find_public_ips(query)
  hostnames = search_nodes(query, 'hostname')
  puts "Found hostnames: #{hostnames.inspect}"
  ips = hostnames.map { |h|
    public_ip_for_host h
  }
  ips.compact.uniq
end

#get_environment ⇒ Object 



277
278
279
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 277

def get_environment
  current_stack[:environment]
end

#http_request(url) ⇒ Object 



231
232
233
234
235
236
237
238
239
240
241
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 231

def http_request(url)
  match_data = /\$\{([a-zA-Z0-9-]+)\}/.match url
  if match_data
    server_name = match_data[1]
    ip = public_ip_for_host(server_name)
    url = url.sub(/\$\{#{server_name}\}/, ip)
  end

  puts "HTTP Request: #{url}"
  puts `curl -s -m 5 #{url}`
end

#knife_ssh(host_list, command) ⇒ Object 



195
196
197
198
199
200
201
202
203
204
205
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 195

def knife_ssh(host_list, command)
  ssh = Chef::Knife::Ssh.new
  ssh.name_args = [host_list, command]
  ssh.config[:ssh_user] = config[:ssh_user]
  ssh.config[:ssh_password] = config[:ssh_password]
  ssh.config[:ssh_port] = Chef::Config[:knife][:ssh_port] || config[:ssh_port]
  ssh.config[:identity_file] = config[:identity_file]
  ssh.config[:manual] = true
  ssh.config[:no_host_key_verify] = config[:no_host_key_verify]
  ssh
end

#knife_ssh_action(query, command) ⇒ Object 



214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 214

def knife_ssh_action(query, command)
  public_ips = find_public_ips(query)
  return if public_ips.nil? || public_ips.empty?
  host_list = public_ips.join(' ')

  ssh = knife_ssh(host_list, command)
  begin
    ssh.run
  rescue Net::SSH::AuthenticationFailed
    unless config[:ssh_password]
      puts "Failed to authenticate #{config[:ssh_user]} - trying password auth"
      ssh = knife_ssh_with_password_auth(host_list, command)
      ssh.run
    end
  end
end

#knife_ssh_with_password_auth(host_list, command) ⇒ Object 



207
208
209
210
211
212
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 207

def knife_ssh_with_password_auth(host_list, command)
  ssh = knife_ssh(host_list, command)
  ssh.config[:identity_file] = nil
  ssh.config[:ssh_password] = ssh.get_password
  ssh
end

#print_local_hosts ⇒ Object 



281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 281

def print_local_hosts
  hosts = []
  current_stack[:servers].each do |server|
    next unless server[:local_hosts]
    name = server[:name].split(' ').first
    ip = public_ip_for_host(name)
    server[:local_hosts].each { |host|
      hostname = host.sub(/\$\{environment\}/, get_environment)
      hosts << "#{ip}    #{hostname}"
    }
  end
  unless hosts.empty?
    puts "\nAdd this to your /etc/hosts file:"
    puts hosts.join("\n")
  end
end

#public_ip_for_host(name) ⇒ Object 



262
263
264
265
266
267
268
269
270
271
272
273
274
275
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 262

def public_ip_for_host(name)
  return nil unless name
  @public_ip_cache ||= {}

  if !@public_ip_cache[name] then
    server = connection.get_server(name)
    return nil unless server

    ip = connection.get_server_public_ip(server)
    @public_ip_cache[name] = ip if ip
  end

  @public_ip_cache[name]
end

#run ⇒ Object 



66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 66

def run
  validate_base_options
  if @name_args.first.nil?
    ui.error "Please specify json file eg: knife cosmic stack create JSON_FILE"
    exit 1
  end
  file_path = File.expand_path(@name_args.first)
  unless File.exist?(file_path) then
    ui.error "Stack file '#{file_path}' not found. Please check the path."
    exit 1
  end

  data = File.read file_path
  stack = Chef::JSONCompat.from_json data
  create_stack stack
end

#run_actions(actions) ⇒ Object 



145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 145

def run_actions(actions)
  return if actions.nil? || actions.empty?
  puts "\n"
  ui.msg("Processing actions...")
  sleep 1 # pause for e.g. chef solr indexing
  actions ||= []
  actions.each do |cmd|
    cmd ||= {}
    cmd.each do |name, args|
      case name
        when 'knife_ssh'
          knife_ssh_action(*args)
        when 'http_request'
          http_request(args)
        when 'run_list_remove'
          run_list_remove(*args)
        when 'sleep'
          dur = args || 5
          sleep dur
      end
    end
  end

end

#run_list_remove(query, entry) ⇒ Object 



243
244
245
246
247
248
249
250
251
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 243

def run_list_remove(query, entry)
  nodes = search_nodes(query)
  return unless nodes

  nodes.each do |n|
    cmd = Chef::Knife::NodeRunListRemove.new([n.name, entry])
    cmd.run_with_pretty_exceptions
  end
end

#search_nodes(query, attribute = nil) ⇒ Object 



170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
 
# File 'lib/chef/knife/cosmic_stack_create.rb', line 170

def search_nodes(query, attribute=nil)
  if get_environment
    query = "(#{query})" + " AND chef_environment:#{get_environment}"
  end

  Chef::Log.debug("Searching for nodes: #{query}")

  q = Chef::Search::Query.new
  nodes = Array(q.search(:node, query))

  # the array of nodes is the first item in the array returned by the search
  if nodes.length > 1
    nodes = nodes.first || []
  end

  # return attribute values instead of nodes
  if attribute
    nodes.map do |node|
      node[attribute.to_s]
    end
  else
    nodes
  end
end