F #5155: Support more objects in provision Terraform (#398)

install.sh

@@ -295,6 +295,8 @@ LIB_DIRS="$LIB_LOCATION/ruby \
           $LIB_LOCATION/oneprovision/lib/terraform \
           $LIB_LOCATION/oneprovision/lib/terraform/providers \
           $LIB_LOCATION/oneprovision/lib/terraform/providers/templates \
+          $LIB_LOCATION/oneprovision/lib/terraform/providers/templates/aws \
+          $LIB_LOCATION/oneprovision/lib/terraform/providers/templates/packet \
           $LIB_LOCATION/oneprovision/lib/provision \
           $LIB_LOCATION/oneprovision/lib/provision_template \
           $LIB_LOCATION/oneprovision/lib/provider \
@@ -726,7 +728,8 @@ INSTALL_ONEPROVISION_FILES=(
     ONEPROVISION_LIB_FILES:$LIB_LOCATION/oneprovision/lib
     ONEPROVISION_LIB_TF_FILES:$LIB_LOCATION/oneprovision/lib/terraform
     ONEPROVISION_LIB_PROVIDERS_FILES:$LIB_LOCATION/oneprovision/lib/terraform/providers
-    ONEPROVISION_LIB_PROVIDERS_ERB_FILES:$LIB_LOCATION/oneprovision/lib/terraform/providers/templates
+    ONEPROVISION_LIB_AWS_ERB_FILES:$LIB_LOCATION/oneprovision/lib/terraform/providers/templates/aws
+    ONEPROVISION_LIB_PACKET_ERB_FILES:$LIB_LOCATION/oneprovision/lib/terraform/providers/templates/packet
     ONEPROVISION_LIB_PROVISION_FILES:$LIB_LOCATION/oneprovision/lib/provision
     ONEPROVISION_LIB_RESOURCES_FILES:$LIB_LOCATION/oneprovision/lib/provision/resources
     ONEPROVISION_LIB_PHYSICAL_R_FILES:$LIB_LOCATION/oneprovision/lib/provision/resources/physical
@@ -2394,10 +2397,17 @@ ONEPROVISION_LIB_PROVIDERS_FILES="src/oneprovision/lib/terraform/providers/aws.r
                                   src/oneprovision/lib/terraform/providers/dummy.rb \
                                   src/oneprovision/lib/terraform/providers/packet.rb"
 
-ONEPROVISION_LIB_PROVIDERS_ERB_FILES="src/oneprovision/lib/terraform/providers/templates/aws.erb \
-                                      src/oneprovision/lib/terraform/providers/templates/aws_device.erb \
-                                      src/oneprovision/lib/terraform/providers/templates/packet.erb \
-                                      src/oneprovision/lib/terraform/providers/templates/packet_device.erb"
+ONEPROVISION_LIB_AWS_ERB_FILES="src/oneprovision/lib/terraform/providers/templates/aws/cluster.erb \
+                                src/oneprovision/lib/terraform/providers/templates/aws/datastore.erb \
+                                src/oneprovision/lib/terraform/providers/templates/aws/host.erb \
+                                src/oneprovision/lib/terraform/providers/templates/aws/network.erb \
+                                src/oneprovision/lib/terraform/providers/templates/aws/provider.erb"
+
+ONEPROVISION_LIB_PACKET_ERB_FILES="src/oneprovision/lib/terraform/providers/templates/packet/cluster.erb \
+                                   src/oneprovision/lib/terraform/providers/templates/packet/datastore.erb \
+                                   src/oneprovision/lib/terraform/providers/templates/packet/host.erb \
+                                   src/oneprovision/lib/terraform/providers/templates/packet/network.erb \
+                                   src/oneprovision/lib/terraform/providers/templates/packet/provider.erb"
 
 #-----------------------------------------------------------------------------
 # Sunstone files

src/cli/one_helper/oneprovision_helper.rb

@@ -452,7 +452,7 @@ class OneProvisionHelper < OpenNebulaHelper::OneHelper
         return rc if OpenNebula.is_error?(rc)
 
         id   = host['ID']
-        host = OneProvision::Host.new(provision.provider)
+        host = OneProvision::Host.new(provision.provider['NAME'])
         host.info(id)
 
         case operation[:operation]

src/oneprovision/lib/provision/ansible.rb

@@ -223,7 +223,6 @@ module OneProvision
                         rescue StandardError => e
                             raise e
                         end
-
                     when /^fatal: \[([^\]]+)\]: .* =>/i
                         host = Regexp.last_match(1)
                     end

src/oneprovision/lib/provision/driver.rb

@@ -185,32 +185,15 @@ module OneProvision
 
             # Execute action with Terraform
             #
-            # @param provider [Provider] Provider to perform actions
-            # @param client   [Client]   OpenNebula client to make calls
-            # @param hosts    [Array]    Hosts to perform action
-            # @param action   [String]   Action to perform
-            # @param tf       [Hash]     Terraform :state and :conf
-            def tf_action(provider, hosts, action, tf = {})
-                hosts = hosts.map do |h|
-                    host = Host.new(provider)
-                    rc   = host.info(h['id'])
-
-                    if OpenNebula.is_error?(rc)
-                        raise OneProvisionLoopException, rc.message
-                    end
-
-                    host.one
-
-                    # Decrypt secrets
-                    host.one.info(true)
-
-                    host.one
-                end
-
+            # @param provision [Provision] Provision information
+            # @param action    [String]    Action to perform
+            # @param tf        [Hash]      Terraform :state and :conf
+            def tf_action(provision, action, tf = {})
+                provider       = provision.provider
                 terraform      = Terraform.singleton(provider, tf)
                 terraform.conn = provider.connection
 
-                terraform.generate_deployment_file(hosts)
+                terraform.generate_deployment_file(provision)
                 terraform.send(action)
             end
 

src/oneprovision/lib/provision/provision.rb

@@ -114,7 +114,7 @@ module OneProvision
 
         # Returns provision provider
         def provider
-            @body['provider']
+            Provider.by_name(@client, @body['provider'])
         end
 
         # Returns infrastructure + resource objects
@@ -139,6 +139,42 @@ module OneProvision
             { :state => tf_state, :conf => tf_conf }
         end
 
+        # Get OpenNebula information for specific objects
+        #
+        # @param object [String] Object to check
+        #
+        # @return [Array] OpenNebula objects
+        def info_objects(object)
+            rc = info(true)
+
+            if OpenNebula.is_error?(rc)
+                raise OneProvisionLoopException, rc.message
+            end
+
+            if FULL_CLUSTER.include?(object)
+                path = 'infrastructure'
+            else
+                path = 'resource'
+            end
+
+            return [] unless @body['provision'][path][object]
+
+            resource = Resource.object(object)
+            ret      = []
+
+            @body['provision'][path][object].each do |o|
+                rc = resource.info(o['id'])
+
+                if OpenNebula.is_error?(rc)
+                    raise OneProvisionLoopException, rc.message
+                end
+
+                ret << resource.one
+            end
+
+            ret
+        end
+
         # Deploys a new provision
         #
         # @param config   [String]   Path to deployment file
@@ -230,8 +266,7 @@ module OneProvision
                     conf  = nil
 
                     Driver.retry_loop 'Failed to deploy hosts' do
-                        ips, ids, state, conf = Driver.tf_action(provider,
-                                                                 hosts,
+                        ips, ids, state, conf = Driver.tf_action(self,
                                                                  'deploy')
                     end
 
@@ -334,16 +369,14 @@ module OneProvision
 
             OneProvisionLogger.info("Deleting provision #{self['ID']}")
 
-            provider = Provider.by_name(@client, provider())
-
             if !hosts.empty? && tf_state && tf_conf
-                Driver.tf_action(provider, hosts, 'destroy', tf)
+                Driver.tf_action(self, 'destroy', tf)
             end
 
             Driver.retry_loop 'Failed to delete hosts' do
                 hosts.each do |host|
                     id   = host['id']
-                    host = Host.new(provider)
+                    host = Host.new(provider['NAME'])
 
                     host.info(id)
                     host.delete
@@ -388,14 +421,12 @@ module OneProvision
             if operation == :append
                 @body['provision'][path][object] << { :id => id, :name => name }
             else
-                provider = Provider.by_name(@client, provider())
-
                 o  = Resource.object(object, provider)
                 rc = o.info(id)
 
                 return rc if OpenNebula.is_error?(rc)
 
-                rc = o.delete(object == 'hosts' ? tf : nil)
+                rc = o.delete(FULL_CLUSTER.include?(object) ? tf : nil)
 
                 return rc if OpenNebula.is_error?(rc)
 

src/oneprovision/lib/provision/resources/physical/cluster.rb

@@ -22,11 +22,14 @@ module OneProvision
     class Cluster < Resource
 
         # Class constructor
-        def initialize
-            super
+        #
+        # @param provider [provider] Cluster provider
+        def initialize(provider = nil)
+            super()
 
-            @pool = OpenNebula::ClusterPool.new(@client)
-            @type = 'cluster'
+            @pool     = OpenNebula::ClusterPool.new(@client)
+            @type     = 'cluster'
+            @provider = provider
         end
 
         # Creates a new cluster in OpenNebula
@@ -52,7 +55,29 @@ module OneProvision
         # @param id [Integer] Object ID
         def info(id)
             @one = OpenNebula::Cluster.new_with_id(id, @client)
-            @one.info
+            @one.info(true)
+        end
+
+        # Deletes the cluster
+        #
+        # @param tf [Hash] Terraform :conf and :state
+        #
+        # @return [Array]
+        #   - Terraform state in base64
+        #   - Terraform config in base64
+        def delete(tf = nil)
+            if tf && !tf.empty?
+                terraform   = Terraform.singleton(@provider, tf)
+                state, conf = terraform.destroy_cluster(@one.id)
+            end
+
+            Utils.exception(@one.delete)
+
+            if state && conf
+                [state, conf]
+            else
+                0
+            end
         end
 
         private

src/oneprovision/lib/provision/resources/physical/datastore.rb

@@ -22,7 +22,9 @@ module OneProvision
     class Datastore < PhysicalResource
 
         # Class constructor
-        def initialize
+        #
+        # @param provider [Provider] Datastore provider
+        def initialize(provider = nil)
             super
 
             @pool = OpenNebula::DatastorePool.new(@client)
@@ -34,7 +36,15 @@ module OneProvision
         # @param id [String] Object ID
         def info(id)
             @one = OpenNebula::Datastore.new_with_id(id, @client)
-            @one.info
+            @one.info(true)
+        end
+
+        # Destroy datastore in provider
+        #
+        # @param tf [Hash] Terraform configuration
+        def destroy(tf)
+            terraform = Terraform.singleton(@provider, tf)
+            terraform.destroy_datastore(@one.id)
         end
 
         private

src/oneprovision/lib/provision/resources/physical/host.rb

@@ -163,7 +163,7 @@ module OneProvision
         # @param id [String] Object ID
         def info(id)
             @one = OpenNebula::Host.new_with_id(id, @client)
-            @one.info
+            @one.info(true)
         end
 
         private

src/oneprovision/lib/provision/resources/physical/network.rb

@@ -22,7 +22,9 @@ module OneProvision
     class Network < PhysicalResource
 
         # Class constructor
-        def initialize
+        #
+        # @param provider [provider] Network provider
+        def initialize(provider = nil)
             super
 
             @pool = OpenNebula::VirtualNetworkPool.new(@client)
@@ -34,7 +36,15 @@ module OneProvision
         # @param id [String] Object ID
         def info(id)
             @one = OpenNebula::VirtualNetwork.new_with_id(id, @client)
-            @one.info
+            @one.info(true)
+        end
+
+        # Destroy network in provider
+        #
+        # @param tf [Hash] Terraform configuration
+        def destroy(tf)
+            terraform = Terraform.singleton(@provider, tf)
+            terraform.destroy_network(@one.id)
         end
 
         private

src/oneprovision/lib/provision/resources/physical/physical_resource.rb

@@ -21,6 +21,15 @@ module OneProvision
     # Represents a physical resource for the provision
     class PhysicalResource < Resource
 
+        # Class constructor
+        #
+        # @param provider [Provider] Resource provider
+        def initialize(provider)
+            super()
+
+            @provider = provider
+        end
+
         # Creates the object in OpenNebula
         #
         # @param template   [Hash]    Object attributes
@@ -43,6 +52,25 @@ module OneProvision
             Integer(@one.id)
         end
 
+        # Deletes the resource
+        #
+        # @param tf [Hash] Terraform :conf and :state
+        #
+        # @return [Array]
+        #   - Terraform state in base64
+        #   - Terraform config in base64
+        def delete(tf = nil)
+            state, conf = destroy(tf) if tf && !tf.empty?
+
+            Utils.exception(@one.delete)
+
+            if state && conf
+                [state, conf]
+            else
+                0
+            end
+        end
+
     end
 
 end

src/oneprovision/lib/provision/resources/resource.rb

@@ -45,15 +45,15 @@ module OneProvision
 
             case type
             when :cluster
-                Cluster.new
+                Cluster.new(provider)
             when :datastore
                 Datastore.new
             when :host
                 Host.new(provider)
             when :image
-                Image.new
+                Image.new(provider)
             when :network
-                Network.new
+                Network.new(provider)
             when :template
                 Template.new
             when :vntemplate

src/oneprovision/lib/provision/resources/virtual/flowtemplate.rb

@@ -37,7 +37,7 @@ module OneProvision
         # @param id [String] Object ID
         def info(id)
             @one = OpenNebula::ServiceTemplate.new_with_id(id, @client)
-            @one.info
+            @one.info(true)
         end
 
         # Get template in json format

src/oneprovision/lib/provision/resources/virtual/image.rb

@@ -68,7 +68,7 @@ module OneProvision
         # @param id [String] Object ID
         def info(id)
             @one = OpenNebula::Image.new_with_id(id, @client)
-            @one.info
+            @one.info(true)
         end
 
         private

src/oneprovision/lib/provision/resources/virtual/template.rb

@@ -34,7 +34,7 @@ module OneProvision
         # @param id [String] Object ID
         def info(id)
             @one = OpenNebula::Template.new_with_id(id, @client)
-            @one.info
+            @one.info(true)
         end
 
         private

src/oneprovision/lib/provision/resources/virtual/vntemplate.rb

@@ -34,7 +34,7 @@ module OneProvision
         # @param id [String] Object ID
         def info(id)
             @one = OpenNebula::VNTemplate.new_with_id(id, @client)
-            @one.info
+            @one.info(true)
         end
 
         private

src/oneprovision/lib/terraform/providers/aws.rb

@@ -22,14 +22,20 @@ module OneProvision
     # AWS Terraform Provider
     class AWS < Terraform
 
+        # OpenNebula - Terraform equivalence
+        TYPES = {
+            :cluster   => 'aws_vpc',
+            :datastore => 'aws_ebs_volume',
+            :host      => 'aws_instance',
+            :network   => 'aws_subnet'
+        }
+
         # Class constructor
         #
         # @param state  [String] Terraform state in base64
         # @param conf   [String] Terraform config state in base64
         def initialize(state, conf)
-            @device_erb = "#{PROVIDERS_LOCATION}/templates/aws_device.erb"
-            @erb        = "#{PROVIDERS_LOCATION}/templates/aws.erb"
-            @host_type  = 'aws_instance'
+            @dir = "#{PROVIDERS_LOCATION}/templates/aws"
 
             # User data should be encoded in base64
             @base64 = true

src/oneprovision/lib/terraform/providers/packet.rb

@@ -22,14 +22,19 @@ module OneProvision
     # Packet Terraform Provider
     class Packet < Terraform
 
+        # OpenNebula - Terraform equivalence
+        TYPES = {
+            :datastore => 'packet_volume',
+            :host      => 'packet_device',
+            :network   => 'packet_reserved_ip_block'
+        }
+
         # Class constructor
         #
         # @param state [String] Terraform state in base64
         # @param conf  [String] Terraform config state in base64
         def initialize(state, conf)
-            @device_erb = "#{PROVIDERS_LOCATION}/templates/packet_device.erb"
-            @erb        = "#{PROVIDERS_LOCATION}/templates/packet.erb"
-            @host_type  = 'packet_device'
+            @dir = "#{PROVIDERS_LOCATION}/templates/packet"
 
             # User data is in plain text
             @base64 = false

src/oneprovision/lib/terraform/providers/templates/aws/cluster.erb

@@ -0,0 +1,22 @@
+resource "aws_vpc" "device_<%= obj['ID'] %>" {
+    cidr_block = "<%= provision['CIDR'] %>"
+
+    tags = {
+        Name = "<%= obj['NAME'] %>_vpc"
+    }
+}
+
+resource "aws_internet_gateway" "device_<%= obj['ID'] %>" {
+    vpc_id = aws_vpc.device_<%= obj['ID'] %>.id
+
+    tags = {
+        Name = "<%= obj['NAME'] %>_gateway"
+    }
+}
+
+resource "aws_route" "device_<%= obj['ID'] %>" {
+    route_table_id         = aws_vpc.device_<%= obj['ID'] %>.main_route_table_id
+    destination_cidr_block = "<%= provision['DEST_CIDR'] %>"
+    gateway_id             = aws_internet_gateway.device_<%= obj['ID'] %>.id
+}
+

src/oneprovision/lib/terraform/providers/templates/aws/datastore.erb

@@ -0,0 +1,9 @@
+resource "aws_ebs_volume" "device_<%= obj['ID'] %>" {
+    availability_zone = "<%= provision['AWS_REGION'] %>"
+    size              = "<%= obj['TOTAL_MB'] %>"
+
+    tags = {
+        Name = "<%= obj['NAME'] %>"
+    }
+}
+

src/oneprovision/lib/terraform/providers/templates/aws/host.erb

@@ -1,4 +1,4 @@
-resource "aws_instance" "device_<%= host['ID'] %>" {
+resource "aws_instance" "device_<%= obj['ID'] %>" {
     ami                    = "<%= provision['AMI'] %>"
     instance_type          = "<%= provision['INSTANCETYPE'] %>"
 
@@ -10,17 +10,17 @@ resource "aws_instance" "device_<%= host['ID'] %>" {
     vpc_security_group_ids = ["<%= provision['SECURITYGROUPSIDS'] %>"]
     <% end %>
 
-    user_data              = "<%= user_data %>"
+    user_data              = "<%= obj['user_data'] %>"
     tags                   = {
         Name = "<%= provision['HOSTNAME'] %>"
     }
 }
 
-output "ip_<%= host['ID'] %>" {
-  value = aws_instance.device_<%= host['ID'] %>.public_ip
+output "ip_<%= obj['ID'] %>" {
+  value = aws_instance.device_<%= obj['ID'] %>.public_ip
 }
 
-output "device_id_<%= host['ID'] %>" {
-  value = aws_instance.device_<%= host['ID'] %>.id
+output "device_id_<%= obj['ID'] %>" {
+  value = aws_instance.device_<%= obj['ID'] %>.id
 }
 

src/oneprovision/lib/terraform/providers/templates/aws/network.erb

@@ -0,0 +1,10 @@
+resource "aws_subnet" "device_<%= obj['ID'] %>" {
+    vpc_id                  = aws_vpc.device_<%= c['ID'] %>.id
+    cidr_block              = "<%= provision['SUB_CIDR'] %>"
+    map_public_ip_on_launch = true
+
+    tags = {
+        Name = "<%= obj['NAME'] %>_subnet"
+    }
+}
+

src/oneprovision/lib/terraform/providers/templates/packet/datastore.erb

@@ -0,0 +1,9 @@
+resource "packet_volume" "device_<%= obj['ID'] %>" {
+    description   = "<%= obj['ID'] %>_volume"
+    facility      = "<%= provision['FACILITY'] %>"
+    project_id    = "<%= provision['PACKET_PROJECT'] %>"
+    plan          = "<%= provision['PLAN'] %>"
+    size          = "<%= obj['TOTAL_MB'] %>"
+    billing_cycle = "hourly"
+}
+

src/oneprovision/lib/terraform/providers/templates/packet/host.erb

@@ -0,0 +1,19 @@
+resource "packet_device" "device_<%= obj['ID'] %>" {
+    hostname         = "<%= provision['HOSTNAME'] %>"
+    plan             = "<%= provision['PLAN'] %>"
+    facilities       = ["<%= provision['FACILITY'] %>"]
+    operating_system = "<%= provision['OS'] %>"
+    project_id       = "<%= provision['PACKET_PROJECT']%>"
+    billing_cycle    = "hourly"
+    user_data        = "<%= obj['user_data'] %>"
+    tags             = ["OpenNebula", "ONE_ID=<%= obj['ID'] %>"]
+}
+
+output "ip_<%= obj['ID'] %>" {
+  value = packet_device.device_<%= obj['ID'] %>.network[0].address
+}
+
+output "device_id_<%= obj['ID'] %>" {
+  value = packet_device.device_<%= obj['ID'] %>.id
+}
+

src/oneprovision/lib/terraform/providers/templates/packet/network.erb

@@ -0,0 +1,6 @@
+resource "packet_reserved_ip_block" "device_<%= obj['ID'] %>" {
+  project_id = "<%= provision['PACKET_PROJECT'] %>"
+  facility   = "<%= provision['FACILITY'] %>"
+  quantity   = "<%= provision['SIZE'] %>"
+}
+

src/oneprovision/lib/terraform/providers/templates/packet_device.erb

@@ -1,19 +0,0 @@
-resource "packet_device" "device_<%= host['ID'] %>" {
-    hostname         = "<%= provision['HOSTNAME'] %>"
-    plan             = "<%= provision['PLAN'] %>"
-    facilities       = ["<%= provision['FACILITY'] %>"]
-    operating_system = "<%= provision['OS'] %>"
-    project_id       = "<%= provision['PACKET_PROJECT']%>"
-    billing_cycle    = "hourly"
-    user_data        = "<%= user_data %>"
-    tags             = ["OpenNebula", "ONE_ID=<%= host['ID'] %>"]
-}
-
-output "ip_<%= host['ID'] %>" {
-  value = packet_device.device_<%= host['ID'] %>.network[0].address
-}
-
-output "device_id_<%= host['ID'] %>" {
-  value = packet_device.device_<%= host['ID'] %>.id
-}
-

src/oneprovision/lib/terraform/terraform.rb

@@ -73,48 +73,28 @@ module OneProvision
 
         # Generate Terraform deployment file
         #
-        # @param hosts [Array] Hosts to deploy in Packet
-        def generate_deployment_file(hosts)
+        # @param provision [Provision] Provision information
+        def generate_deployment_file(provision)
             return if @conf
 
             @conf = ''
 
-            c = File.read(@erb)
+            c = File.read("#{@dir}/provider.erb")
             c = ERBVal.render_from_hash(c, :conn => @conn)
 
             @conf << c
 
-            hosts.each do |host|
-                host      = host.to_hash['HOST']
-                provision = host['TEMPLATE']['PROVISION']
-                ssh_key   = host['TEMPLATE']['CONTEXT']['SSH_PUBLIC_KEY']
+            # Generate clusters Terraform configuration
+            cluster_info(provision)
 
-                # Add clod unit information into user_data
-                # This only applies for a set of spported providers
-                user_data = "#cloud-config\n"
+            # Generate hosts Terraform configuration
+            host_info(provision)
 
-                if ssh_key
-                    user_data << "ssh_authorized_keys:\n"
+            # Generate datastores Terraform configuration
+            ds_info(provision)
 
-                    ssh_key.split("\n").each do |key|
-                        user_data << "- #{key}\n"
-                    end
-                end
-
-                if @base64
-                    user_data = Base64.strict_encode64(user_data)
-                else
-                    # Escape \n to avoid multilines in Terraform deploy file
-                    user_data = user_data.gsub("\n", '\\n')
-                end
-
-                c = File.read(@device_erb)
-                c = ERBVal.render_from_hash(c,
-                                            :host      => host,
-                                            :provision => provision,
-                                            :user_data => user_data)
-                @conf << c
-            end
+            # Generate networks Terraform configuration
+            network_info(provision)
         end
 
         # Deploy infra via Terraform
@@ -134,7 +114,7 @@ module OneProvision
                 )
 
                 unless s && s.success?
-                    STDERR.puts '[ERROR] Hosts provision failed!!!' \
+                    STDERR.puts '[ERROR] Hosts provision failed!!! ' \
                                 'Please log in to your console to delete ' \
                                 'left resources'
 
@@ -209,15 +189,124 @@ module OneProvision
             FileUtils.rm_r(tempdir) if File.exist?(tempdir)
         end
 
+        # Destroys a cluster
+        #
+        # @param id [String] Host ID
+        def destroy_cluster(id)
+            destroy_resource(self.class::TYPES[:cluster], id)
+        end
+
         # Destroys a host
         #
-        # @param host [String] Host ID
+        # @param id [String] Host ID
         def destroy_host(id)
-            destroy_resource(@host_type, id)
+            destroy_resource(self.class::TYPES[:host], id)
+        end
+
+        # Destroys a datastore
+        #
+        # @param id [String] Datastore ID
+        def destroy_datastore(id)
+            destroy_resource(self.class::TYPES[:datastore], id)
+        end
+
+        # Destriys a network
+        #
+        # @param id [String] Network ID
+        def destroy_network(id)
+            destroy_resource(self.class::TYPES[:network], id)
         end
 
         private
 
+        ########################################################################
+        # Configuration file generation
+        ########################################################################
+
+        # Add clusters information to configuration
+        #
+        # @param provision [Provision] Provision information
+        def cluster_info(provision)
+            object_info(provision, 'clusters', 'CLUSTER', 'cluster.erb')
+        end
+
+        # Add hosts information to configuration
+        #
+        # @param provision [Provision] Provision information
+        def host_info(provision)
+            object_info(provision, 'hosts', 'HOST', 'host.erb') do |obj|
+                ssh_key = obj['TEMPLATE']['CONTEXT']['SSH_PUBLIC_KEY']
+
+                return if !ssh_key || ssh_key.empty?
+
+                # Add clod unit information into user_data
+                # This only applies for a set of spported providers
+                user_data = "#cloud-config\n"
+
+                user_data << "ssh_authorized_keys:\n"
+
+                ssh_key.split("\n").each {|key| user_data << "- #{key}\n" }
+
+                if @base64
+                    user_data = Base64.strict_encode64(user_data)
+                else
+                    # Escape \n to avoid multilines in Terraform deploy file
+                    user_data = user_data.gsub("\n", '\\n')
+                end
+
+                obj['user_data'] = user_data
+            end
+        end
+
+        # Add datastores information to configuration
+        #
+        # @param provision [Provision] Provision information
+        def ds_info(provision)
+            object_info(provision, 'datastores', 'DATASTORE', 'datastore.erb')
+        end
+
+        # Add networks information to configuration
+        #
+        # @param provision [Provision] Provision information
+        def network_info(provision)
+            object_info(provision, 'networks', 'VNET', 'network.erb')
+        end
+
+        # Generate object Terraform configuration
+        #
+        # @param provision [Provision] Provision information
+        # @param objects   [String]    Objects to get
+        # @param object    [String]    Object name
+        # @param erb       [String]    ERB file
+        def object_info(provision, objects, object, erb)
+            cluster = provision.info_objects('clusters')[0]
+            cluster = cluster.to_hash['CLUSTER']
+
+            provision.info_objects(objects).each do |obj|
+                obj = obj.to_hash[object]
+                p   = obj['TEMPLATE']['PROVISION']
+
+                next if !p || p.empty?
+
+                yield(obj) if block_given?
+
+                c = File.read("#{@dir}/#{erb}")
+
+                next if c.empty?
+
+                c = ERBVal.render_from_hash(c,
+                                            :c         => cluster,
+                                            :obj       => obj,
+                                            :provision => p)
+
+                @conf << c
+            end
+        end
+
+        ########################################################################
+        # Helper functions
+        ########################################################################
+
         # Initialize Terraform directory content
         #
         # @param state   [Boolean] True to copy state, false otherwise