terraform/terraform/transform_resource_count.go

37 lines
917 B
Go

package terraform
import (
"log"
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/configs/configschema"
"github.com/hashicorp/terraform/dag"
)
// ResourceCountTransformer is a GraphTransformer that expands the count
// out for a specific resource.
//
// This assumes that the count is already interpolated.
type ResourceCountTransformer struct {
Concrete ConcreteResourceInstanceNodeFunc
Schema *configschema.Block
Addr addrs.ConfigResource
InstanceAddrs []addrs.AbsResourceInstance
}
func (t *ResourceCountTransformer) Transform(g *Graph) error {
for _, addr := range t.InstanceAddrs {
abstract := NewNodeAbstractResourceInstance(addr)
abstract.Schema = t.Schema
var node dag.Vertex = abstract
if f := t.Concrete; f != nil {
node = f(abstract)
}
log.Printf("[TRACE] ResourceCountTransformer: adding %s as %T", addr, node)
g.Add(node)
}
return nil
}