opentofu/terraform/node_resource_plan_orphan.go
Martin Atkins 26f76dd222 core: When planning to destroy an orphan instance, nil it in state
While we're planning we must always update the state with the proposed new
data resulting from the plan. In this case, we must record that the
orphan instance doesn't exist at all in the proposed new state by storing
its state as nil.

This in turn allows references to the containing resource to evaluate
properly, using the new updated resource count. This fixes
TestContext2Apply_multiVarCountDec.

This also includes a number of changes to the test output of
TestContext2Apply_multiVarCountDec that make it easier to debug failures.
2018-10-16 18:49:20 -07:00

70 lines
2.1 KiB
Go

package terraform
// NodePlannableResourceInstanceOrphan represents a resource that is "applyable":
// it is ready to be applied and is represented by a diff.
type NodePlannableResourceInstanceOrphan struct {
*NodeAbstractResourceInstance
}
var (
_ GraphNodeSubPath = (*NodePlannableResourceInstanceOrphan)(nil)
_ GraphNodeReferenceable = (*NodePlannableResourceInstanceOrphan)(nil)
_ GraphNodeReferencer = (*NodePlannableResourceInstanceOrphan)(nil)
_ GraphNodeResource = (*NodePlannableResourceInstanceOrphan)(nil)
_ GraphNodeResourceInstance = (*NodePlannableResourceInstanceOrphan)(nil)
_ GraphNodeAttachResourceConfig = (*NodePlannableResourceInstanceOrphan)(nil)
_ GraphNodeAttachResourceState = (*NodePlannableResourceInstanceOrphan)(nil)
_ GraphNodeEvalable = (*NodePlannableResourceInstanceOrphan)(nil)
)
var (
_ GraphNodeEvalable = (*NodePlannableResourceInstanceOrphan)(nil)
)
func (n *NodePlannableResourceInstanceOrphan) Name() string {
return n.ResourceInstanceAddr().String() + " (orphan)"
}
// GraphNodeEvalable
func (n *NodePlannableResourceInstanceOrphan) EvalTree() EvalNode {
addr := n.ResourceInstanceAddr()
// State still uses legacy-style internal ids, so we need to shim to get
// a suitable key to use.
stateId := NewLegacyResourceInstanceAddress(addr).stateId()
// Declare a bunch of variables that are used for state during
// evaluation. Most of this are written to by-address below.
var diff *InstanceDiff
var state *InstanceState
return &EvalSequence{
Nodes: []EvalNode{
&EvalReadState{
Name: stateId,
Output: &state,
},
&EvalDiffDestroy{
Addr: addr.Resource,
State: &state, // Will point to a nil state after this complete, signalling destroyed
Output: &diff,
},
&EvalCheckPreventDestroy{
Addr: addr.Resource,
Config: n.Config,
Diff: &diff,
},
&EvalWriteDiff{
Name: stateId,
Diff: &diff,
},
&EvalWriteState{
Name: stateId,
ResourceType: addr.Resource.Resource.Type,
Provider: n.ResolvedProvider,
State: &state,
},
},
}
}