Merge branch '21666-provision-test-improvement'

[arvados.git] / lib / cloud / interfaces.go

diff --git a/lib/cloud/interfaces.go b/lib/cloud/interfaces.go
index 7c532fda4a9e6beaa1811ae3205dc592f186c315..a2aa9e143296f9251bf629c41863b6f985fac258 100644 (file)
--- a/lib/cloud/interfaces.go
+++ b/lib/cloud/interfaces.go
@@ -37,6 +37,20 @@ type QuotaError interface {
        error
 }
 
+// A CapacityError should be returned by an InstanceSet's Create
+// method when the cloud service indicates it has insufficient
+// capacity to create new instances -- i.e., we shouldn't retry right
+// away.
+type CapacityError interface {
+       // If true, wait before trying to create more instances.
+       IsCapacityError() bool
+       // If true, the condition is specific to the requested
+       // instance types.  Wait before trying to create more
+       // instances of that same type.
+       IsInstanceTypeSpecific() bool
+       error
+}
+
 type SharedResourceTags map[string]string
 type InstanceSetID string
 type InstanceTags map[string]string