opentofu/terraform/node_resource_apply.go
James Bardin 98b323d815 ignore module indices in pre-expansion targeting
The TargetsTransformer ignored resource indices before expansion could
happen, but was not handling module indices. Ensure that we collapse all
pre-expansion addresses to "configuration" addresses, with no module or
resource keys.
2020-06-10 15:39:29 -04:00

117 lines
3.9 KiB
Go

package terraform
import (
"log"
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/dag"
"github.com/hashicorp/terraform/lang"
)
// nodeExpandApplyableResource handles the first layer of resource
// expansion during apply. Even though the resource instances themselves are
// already expanded from the plan, we still need to expand the
// NodeApplyableResource nodes into their respective modules.
type nodeExpandApplyableResource struct {
*NodeAbstractResource
}
var (
_ GraphNodeDynamicExpandable = (*nodeExpandApplyableResource)(nil)
_ GraphNodeReferenceable = (*nodeExpandApplyableResource)(nil)
_ GraphNodeReferencer = (*nodeExpandApplyableResource)(nil)
_ GraphNodeConfigResource = (*nodeExpandApplyableResource)(nil)
_ GraphNodeAttachResourceConfig = (*nodeExpandApplyableResource)(nil)
_ graphNodeExpandsInstances = (*nodeExpandApplyableResource)(nil)
_ GraphNodeTargetable = (*nodeExpandApplyableResource)(nil)
)
func (n *nodeExpandApplyableResource) expandsInstances() {}
func (n *nodeExpandApplyableResource) References() []*addrs.Reference {
return (&NodeApplyableResource{NodeAbstractResource: n.NodeAbstractResource}).References()
}
func (n *nodeExpandApplyableResource) Name() string {
return n.NodeAbstractResource.Name() + " (expand)"
}
func (n *nodeExpandApplyableResource) DynamicExpand(ctx EvalContext) (*Graph, error) {
var g Graph
expander := ctx.InstanceExpander()
moduleInstances := expander.ExpandModule(n.Addr.Module)
var resources []addrs.AbsResource
for _, module := range moduleInstances {
resAddr := n.Addr.Resource.Absolute(module)
resources = append(resources, resAddr)
g.Add(&NodeApplyableResource{
NodeAbstractResource: n.NodeAbstractResource,
Addr: n.Addr.Resource.Absolute(module),
})
}
return &g, nil
}
// 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
Addr addrs.AbsResource
}
var (
_ GraphNodeModuleInstance = (*NodeApplyableResource)(nil)
_ GraphNodeConfigResource = (*NodeApplyableResource)(nil)
_ GraphNodeEvalable = (*NodeApplyableResource)(nil)
_ GraphNodeProviderConsumer = (*NodeApplyableResource)(nil)
_ GraphNodeAttachResourceConfig = (*NodeApplyableResource)(nil)
_ GraphNodeReferencer = (*NodeApplyableResource)(nil)
)
func (n *NodeApplyableResource) Path() addrs.ModuleInstance {
return n.Addr.Module
}
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 {
if n.Config == nil {
// Nothing to do, then.
log.Printf("[TRACE] NodeApplyableResource: no configuration present for %s", n.Name())
return &EvalNoop{}
}
return &EvalWriteResourceState{
Addr: n.Addr,
Config: n.Config,
ProviderAddr: n.ResolvedProvider,
}
}