Class: Environment
- Inherits:
-
Object
- Object
- Environment
- Includes:
- Validations
- Defined in:
- lib/dew/models/environment.rb
Instance Attribute Summary collapse
-
#database ⇒ Object
readonly
Returns the value of attribute database.
-
#name ⇒ Object
readonly
Returns the value of attribute name.
-
#servers ⇒ Object
readonly
Returns the value of attribute servers.
Class Method Summary collapse
Instance Method Summary collapse
- #add_database(size, storage_size, password) ⇒ Object
- #add_elb(listener_ports = []) ⇒ Object
- #add_server(username, create_options) ⇒ Object
- #add_server_to_elb(server) ⇒ Object
- #configure_servers_for_database(password) ⇒ Object
- #destroy ⇒ Object
- #elb ⇒ Object
- #has_elb? ⇒ Boolean
-
#initialize(name, servers = [], database = nil) ⇒ Environment
constructor
A new instance of Environment.
- #remove_server_from_elb(server) ⇒ Object
- #resize_disks ⇒ Object
- #show(options = {}) ⇒ Object
- #show_json ⇒ Object
- #valid? ⇒ Boolean
- #wait_until_ready ⇒ Object
Constructor Details
#initialize(name, servers = [], database = nil) ⇒ Environment
Returns a new instance of Environment.
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# File 'lib/dew/models/environment.rb', line 8 def initialize(name, servers=[], database=nil) @name = name @servers = servers @database = database valid? end |
Instance Attribute Details
#database ⇒ Object (readonly)
Returns the value of attribute database.
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# File 'lib/dew/models/environment.rb', line 6 def database @database end |
#name ⇒ Object (readonly)
Returns the value of attribute name.
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# File 'lib/dew/models/environment.rb', line 6 def name @name end |
#servers ⇒ Object (readonly)
Returns the value of attribute servers.
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# File 'lib/dew/models/environment.rb', line 6 def servers @servers end |
Class Method Details
.create(name, profile) ⇒ Object
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# File 'lib/dew/models/environment.rb', line 25 def self.create(name, profile) raise "Keypair '#{profile.keypair}' is not available in AWS #{Cloud.region}." unless Cloud.keypair_exists?(profile.keypair) raise "AMI for '#{Cloud.region}' is not setup in the '#{profile.profile_name}' profile." unless profile.ami environment = new(name) Inform.info "Creating new environment %{name}", :name => name # Creating the database is the longest running task, so do that first. password = Password.random if profile.has_rds? environment.add_database(profile.rds_size, profile.rds_storage_size, password) if profile.has_rds? (1..profile.count).each do environment.add_server( profile.username, :ami => profile.ami, :size => profile.size, :keypair => profile.keypair, :groups => profile.security_groups, :disk_size => profile.instance_disk_size ) end environment.add_elb(profile.elb_listener_ports) if profile.has_elb? environment.wait_until_ready environment.resize_disks if profile.instance_disk_size? environment.configure_servers_for_database password if profile.has_rds? Inform.info "Environment %{name} ready!", :name => name environment end |
.get(name) ⇒ Object
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# File 'lib/dew/models/environment.rb', line 19 def self.get name servers = Server.find('Environment', name) database = Database.get(name) servers.length > 0 || database ? new(name, servers, database) : nil end |
.index ⇒ Object
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# File 'lib/dew/models/environment.rb', line 62 def self.index #environments = rows.inject({}) { |h, (name, owner)| h[name] = Environment.get(name); h } #items = rows.collect { |name, owner| [name, owner, environments[name].servers.size, environments[name].database] } #table(%w(name owner instance_count database), *rows).to_s.indent Inform.info View.new('Environments', owners, %w(name owner)).index end |
.owners ⇒ Object
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# File 'lib/dew/models/environment.rb', line 58 def self.owners Cloud.valid_servers.collect(&:tags).collect { |h| {:name => h['Environment'], :owner => h['Creator']} if h['Environment'] }.uniq.compact end |
Instance Method Details
#add_database(size, storage_size, password) ⇒ Object
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# File 'lib/dew/models/environment.rb', line 161 def add_database(size, storage_size, password) Inform.info "Adding Database %{name} of size %{size} (storage = #{storage_size}Gb) with master password %{password}", :name => name, :size => size, :password => password do @database = Database.create!(name, size, storage_size, password) end end |
#add_elb(listener_ports = []) ⇒ Object
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# File 'lib/dew/models/environment.rb', line 152 def add_elb listener_ports=[] zones = servers.map {|s| s.availability_zone}.uniq Inform.info "Adding Load Balancer for availability zone(s) %{zones}", :zones => zones.join(', ') do Cloud.elb.create_load_balancer(zones, name, listeners_from_ports(listener_ports)) Inform.debug("ELB created, adding instances...") Cloud.elb.register_instances_with_load_balancer(servers.map {|s| s.id}, name) end end |
#add_server(username, create_options) ⇒ Object
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# File 'lib/dew/models/environment.rb', line 129 def add_server(username, ) server_name = "#{name} #{servers.count + 1}" server = Server.create!() server.add_tag('Environment', name) server.add_tag('Creator', ENV['USER']) server.add_tag('Name', server_name) server.add_tag('Username', username) # Needed for SSH Inform.debug("%{name} ID: %{id} AZ: %{az}", :name => server_name, :id =>server.id, :az => server.availability_zone) servers << server end |
#add_server_to_elb(server) ⇒ Object
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# File 'lib/dew/models/environment.rb', line 142 def add_server_to_elb server Inform.debug("Adding %{id} to ELB", :id => server.id) Cloud.elb.register_instances_with_load_balancer([server.id], name) end |
#configure_servers_for_database(password) ⇒ Object
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# File 'lib/dew/models/environment.rb', line 187 def configure_servers_for_database password Inform.info "Configuring servers for database" do servers.each do |server| Inform.debug "%{id}", :id => server.id server.configure_for_database(database, password) end end end |
#destroy ⇒ Object
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# File 'lib/dew/models/environment.rb', line 111 def destroy servers.each do |server| Inform.info("Destroying server %{serverid}", :serverid => server.id) do server.destroy end end if database Inform.info("Destroying database") do database.destroy(nil) end end if has_elb? Inform.info("Destroying load balancer") do Cloud.elb.delete_load_balancer(name) end end end |
#elb ⇒ Object
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# File 'lib/dew/models/environment.rb', line 202 def elb @elb ||= Cloud.elb.load_balancers.detect { |elb| elb.id == name } # XXX - need to refactor end |
#has_elb? ⇒ Boolean
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# File 'lib/dew/models/environment.rb', line 206 def has_elb? elb_descriptions.select { |elb| elb['LoadBalancerName'] == name }.length > 0 end |
#remove_server_from_elb(server) ⇒ Object
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# File 'lib/dew/models/environment.rb', line 147 def remove_server_from_elb server Inform.debug("Removing %{id} from ELB", :id => server.id) Cloud.elb.deregister_instances_from_load_balancer([server.id], name) end |
#resize_disks ⇒ Object
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# File 'lib/dew/models/environment.rb', line 196 def resize_disks Inform.info "Resizing disks on servers" do servers.each { |s| s.resize_disk } end end |
#show(options = {}) ⇒ Object
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# File 'lib/dew/models/environment.rb', line 69 def show( = {}) return show_json if [:json] result = "" result << "ENVIRONMENT:\n" result << "NAME: #{name}\n" result << "REGION: #{Cloud.region}\n" result << "ACCOUNT: #{Cloud.account.aws_user_id}\n" unless servers.empty? #keys = %w(id flavor_id public_ip_address state created_at key_name tags) keys = %w(id flavor_id public_ip_address state created_at groups key_name availability_zone creator) servers_view = View.new('SERVERS', servers, keys) result << servers_view.index end if elb elbs_view = View.new('ELB', [elb], %w(created_at dns_name instances availability_zones)) result << elbs_view.show(0) end if database databases_view = View.new('DATABASE', [database], %w(flavor_id state created_at availability_zone db_security_groups)) result << databases_view.show(0) end Inform.info result end |
#show_json ⇒ Object
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# File 'lib/dew/models/environment.rb', line 100 def show_json json = servers.map do |s| { 'public_dns' => s.dns_name, 'public_ip' => s.public_ip_address } end puts JSON.pretty_generate(json) end |
#valid? ⇒ Boolean
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# File 'lib/dew/models/environment.rb', line 15 def valid? Validation::validates_format_of @name, /^[a-zA-Z0-9-]+$/ end |
#wait_until_ready ⇒ Object
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# File 'lib/dew/models/environment.rb', line 168 def wait_until_ready Inform.info "Waiting for servers to become ready" do servers.each do |server| = server.groups.map { |group_name| Cloud.security_groups[group_name] }.compact.collect(&:ip_permissions) if .flatten.empty? Inform.warning "Server %{id} has no ip_permissions in its security groups %{security_group_names}", :id => server.id, :security_group_names => server.groups.inspect else Inform.debug "Trying to connect to %{id}", :id => server.id server.wait_until_ready end end end if database Inform.info "Waiting for database to become ready" do database.wait_until_ready if database end end end |