3 files changed, 47 insertions, 0 deletions
diff --git a/app/workers/cluster_provision_worker.rb b/app/workers/cluster_provision_worker.rb
new file mode 100644
index 00000000000..63300b58a25
--- /dev/null
+++ b/app/workers/cluster_provision_worker.rb
@@ -0,0 +1,10 @@
+class ClusterProvisionWorker
+  include Sidekiq::Worker
+  include ClusterQueue
+
+  def perform(cluster_id)
+    Gcp::Cluster.find_by_id(cluster_id).try do |cluster|
+      Ci::ProvisionClusterService.new.execute(cluster)
+    end
+  end
+end
diff --git a/app/workers/concerns/cluster_queue.rb b/app/workers/concerns/cluster_queue.rb
new file mode 100644
index 00000000000..a5074d13220
--- /dev/null
+++ b/app/workers/concerns/cluster_queue.rb
@@ -0,0 +1,10 @@
+##
+# Concern for setting Sidekiq settings for the various Gcp clusters workers.
+#
+module ClusterQueue
+  extend ActiveSupport::Concern
+
+  included do
+    sidekiq_options queue: :gcp_cluster
+  end
+end
diff --git a/app/workers/wait_for_cluster_creation_worker.rb b/app/workers/wait_for_cluster_creation_worker.rb
new file mode 100644
index 00000000000..5aa3bbdaa9d
--- /dev/null
+++ b/app/workers/wait_for_cluster_creation_worker.rb
@@ -0,0 +1,27 @@
+class WaitForClusterCreationWorker
+  include Sidekiq::Worker
+  include ClusterQueue
+
+  INITIAL_INTERVAL = 2.minutes
+  EAGER_INTERVAL = 10.seconds
+  TIMEOUT = 20.minutes
+
+  def perform(cluster_id)
+    Gcp::Cluster.find_by_id(cluster_id).try do |cluster|
+      Ci::FetchGcpOperationService.new.execute(cluster) do |operation|
+        case operation.status
+        when 'RUNNING'
+          if TIMEOUT < Time.now.utc - operation.start_time.to_time.utc
+            return cluster.make_errored!("Cluster creation time exceeds timeout; #{TIMEOUT}")
+          end
+
+          WaitForClusterCreationWorker.perform_in(EAGER_INTERVAL, cluster.id)
+        when 'DONE'
+          Ci::FinalizeClusterCreationService.new.execute(cluster)
+        else
+          return cluster.make_errored!("Unexpected operation status; #{operation.status} #{operation.status_message}")
+        end
+      end
+    end
+  end
+end