72 lines
2.2 KiB
Go
72 lines
2.2 KiB
Go
package terraform
|
|
|
|
import (
|
|
"log"
|
|
|
|
"github.com/hashicorp/terraform/addrs"
|
|
"github.com/hashicorp/terraform/dag"
|
|
"github.com/hashicorp/terraform/lang"
|
|
)
|
|
|
|
// NodeApplyableResource represents a resource that is "applyable":
|
|
// it may need to have its record in the state adjusted to match configuration.
|
|
//
|
|
// Unlike in the plan walk, this resource node does not DynamicExpand. Instead,
|
|
// it should be inserted into the same graph as any instances of the nodes
|
|
// with dependency edges ensuring that the resource is evaluated before any
|
|
// of its instances, which will turn ensure that the whole-resource record
|
|
// in the state is suitably prepared to receive any updates to instances.
|
|
type NodeApplyableResource struct {
|
|
*NodeAbstractResource
|
|
}
|
|
|
|
var (
|
|
_ GraphNodeResource = (*NodeApplyableResource)(nil)
|
|
_ GraphNodeEvalable = (*NodeApplyableResource)(nil)
|
|
_ GraphNodeProviderConsumer = (*NodeApplyableResource)(nil)
|
|
_ GraphNodeAttachResourceConfig = (*NodeApplyableResource)(nil)
|
|
_ GraphNodeReferencer = (*NodeApplyableResource)(nil)
|
|
)
|
|
|
|
func (n *NodeApplyableResource) Name() string {
|
|
return n.NodeAbstractResource.Name() + " (prepare state)"
|
|
}
|
|
|
|
func (n *NodeApplyableResource) References() []*addrs.Reference {
|
|
if n.Config == nil {
|
|
log.Printf("[WARN] NodeApplyableResource %q: no configuration, so can't determine References", dag.VertexName(n))
|
|
return nil
|
|
}
|
|
|
|
var result []*addrs.Reference
|
|
|
|
// Since this node type only updates resource-level metadata, we only
|
|
// need to worry about the parts of the configuration that affect
|
|
// our "each mode": the count and for_each meta-arguments.
|
|
refs, _ := lang.ReferencesInExpr(n.Config.Count)
|
|
result = append(result, refs...)
|
|
refs, _ = lang.ReferencesInExpr(n.Config.ForEach)
|
|
result = append(result, refs...)
|
|
|
|
return result
|
|
}
|
|
|
|
// GraphNodeEvalable
|
|
func (n *NodeApplyableResource) EvalTree() EvalNode {
|
|
addr := n.ResourceAddr()
|
|
config := n.Config
|
|
providerAddr := n.ResolvedProvider
|
|
|
|
if config == nil {
|
|
// Nothing to do, then.
|
|
log.Printf("[TRACE] NodeApplyableResource: no configuration present for %s", addr)
|
|
return &EvalNoop{}
|
|
}
|
|
|
|
return &EvalWriteResourceState{
|
|
Addr: addr.Resource,
|
|
Config: config,
|
|
ProviderAddr: providerAddr,
|
|
}
|
|
}
|