3031: Improve "Docker image not found" error message.

[arvados.git] / services / api / app / models / job.rb

diff --git a/services/api/app/models/job.rb b/services/api/app/models/job.rb
index dc3539891f30ad325ddb99db524b62f513538eb6..8bd308d14b8682e6d56af32bae0b4c71d1c53b19 100644 (file)
--- a/services/api/app/models/job.rb
+++ b/services/api/app/models/job.rb
@@ -2,9 +2,11 @@ class Job < ArvadosModel
   include HasUuid
   include KindAndEtag
   include CommonApiTemplate
+  attr_protected :docker_image_locator
   serialize :script_parameters, Hash
   serialize :runtime_constraints, Hash
   serialize :tasks_summary, Hash
+  before_validation :find_docker_image_locator
   before_create :ensure_unique_submit_id
   before_create :ensure_script_version_is_commit
   before_update :ensure_script_version_is_commit
@@ -35,11 +37,10 @@ class Job < ArvadosModel
     t.add :runtime_constraints
     t.add :tasks_summary
     t.add :dependencies
-    t.add :log_stream_href
-    t.add :log_buffer
     t.add :nondeterministic
     t.add :repository
     t.add :supplied_script_version
+    t.add :docker_image_locator
   end
 
   def assert_finished
@@ -48,12 +49,6 @@ class Job < ArvadosModel
                       running: false)
   end
 
-  def log_stream_href
-    unless self.finished_at
-      "#{current_api_base}/#{self.class.to_s.pluralize.underscore}/#{self.uuid}/log_tail_follow"
-    end
-  end
-
   def self.queue
     self.where('started_at is ? and is_locked_by_uuid is ? and cancelled_at is ? and success is ?',
                nil, nil, nil, nil).
@@ -106,6 +101,21 @@ class Job < ArvadosModel
     true
   end
 
+  def find_docker_image_locator
+    # Find the Collection that holds the Docker image specified in the
+    # runtime constraints, and store its locator in docker_image_locator.
+    image_search = runtime_constraints['docker_image']
+    image_tag = runtime_constraints['docker_image_tag']
+    if image_search.nil?
+      self.docker_image_locator = nil
+    elsif coll = Collection.for_latest_docker_image(image_search, image_tag)
+      self.docker_image_locator = coll.uuid
+    else
+      errors.add(:docker_image_locator, "not found for #{image_search}")
+      false
+    end
+  end
+
   def dependencies
     deps = {}
     queue = self.script_parameters.values
@@ -189,15 +199,4 @@ class Job < ArvadosModel
       end
     end
   end
-
-  def log_buffer
-    begin
-      @@redis ||= Redis.new(:timeout => 0)
-      if @@redis.exists uuid
-        @@redis.getrange(uuid, 0 - 2**10, -1)
-      end
-    rescue Redis::CannotConnectError
-      return '(not available)'
-    end
-  end
 end