use spot instances for compute nodes

[arvados.git] / app / models / node.rb

diff --git a/app/models/node.rb b/app/models/node.rb
index e8daca6f7e328284558d7a00395f3c3bde8dab1b..853b2712c7ac2c2d54d3fbc9e879c65ddf97015b 100644 (file)
--- a/app/models/node.rb
+++ b/app/models/node.rb
@@ -1,4 +1,4 @@
-class Node < ActiveRecord::Base
+class Node < OrvosModel
   include AssignUuid
   include KindAndEtag
   include CommonApiTemplate
@@ -61,6 +61,8 @@ class Node < ActiveRecord::Base
     end
     self.last_ping_at = Time.now
 
+    @bypass_orvos_authorization = true
+
     # Record IP address
     if self.ip_address.nil?
       logger.info "#{self.uuid} ip_address= #{o[:ip]}"
@@ -69,7 +71,10 @@ class Node < ActiveRecord::Base
     end
 
     # Record instance ID if not already known
-    self.info[:ec2_instance_id] ||= o[:ec2_instance_id]
+    if !self.info[:ec2_instance_id] and o[:ec2_instance_id]
+      self.info[:ec2_instance_id] = o[:ec2_instance_id]
+      `ec2-create-tags #{self.info[:ec2_instance_id]} --tag 'Name=#{self.uuid}'`
+    end
 
     # Assign hostname
     if self.slot_number.nil?
@@ -85,25 +90,44 @@ class Node < ActiveRecord::Base
         raise "No available node slots" if try_slot == MAX_SLOTS
       end while true
       self.hostname = self.class.hostname_for_slot(self.slot_number)
+      if info[:ec2_instance_id]
+        `ec2-create-tags #{self.info[:ec2_instance_id]} --tag 'hostname=#{self.hostname}'`
+      end
     end
 
     save
   end
 
   def start!(ping_url_method)
+    ensure_permission_to_update
     ping_url = ping_url_method.call({ uuid: self.uuid, ping_secret: self.info[:ping_secret] })
-    cmd = ["ec2-run-instances",
-           "--user-data '#{ping_url}'",
-           "-t c1.xlarge -n 1 -g orvos-compute",
-           "ami-68ca6901"
-          ].join(' ')
-    self.info[:ec2_start_command] = cmd
-    logger.info "#{self.uuid} ec2_start_command= #{cmd.inspect}"
-    result = `#{cmd} 2>&1`
+    ec2_args = ["--user-data '#{ping_url}'",
+                "-t c1.xlarge -n 1",
+                "-g", Rails.configuration.compute_node_security_group,
+                Rails.configuration.compute_node_ami
+               ]
+    ec2run_cmd = ["ec2-run-instances",
+                  "--client-token", self.uuid,
+                  ec2_args].flatten.join(' ')
+    ec2spot_cmd = ["ec2-request-spot-instances",
+                   "-p #{Rails.configuration.compute_node_spot_bid} --type one-time",
+                   ec2_args].flatten.join(' ')
+    self.info[:ec2_run_command] = ec2run_cmd
+    self.info[:ec2_spot_command] = ec2spot_cmd
+    self.info[:ec2_start_command] = ec2spot_cmd
+    logger.info "#{self.uuid} ec2_start_command= #{ec2spot_cmd.inspect}"
+    result = `#{ec2spot_cmd} 2>&1`
     self.info[:ec2_start_result] = result
     logger.info "#{self.uuid} ec2_start_result= #{result.inspect}"
     result.match(/INSTANCE\s*(i-[0-9a-f]+)/) do |m|
-      self.info[:ec2_instance_id] = m[1]
+      instance_id = m[1]
+      self.info[:ec2_instance_id] = instance_id
+      `ec2-create-tags #{instance_id} --tag 'Name=#{self.uuid}'`
+    end
+    result.match(/SPOTINSTANCEREQUEST\s*(sir-[0-9a-f]+)/) do |m|
+      sir_id = m[1]
+      self.info[:ec2_sir_id] = sir_id
+      `ec2-create-tags #{sir_id} --tag 'Name=#{self.uuid}'`
     end
     self.save!
   end
@@ -153,4 +177,12 @@ class Node < ActiveRecord::Base
       end
     end
   end
+
+  def permission_to_update
+    @bypass_orvos_authorization or super
+  end
+
+  def permission_to_create
+    current_user and current_user.is_admin
+  end
 end