mirror of
https://github.com/opentofu/opentofu.git
synced 2025-02-03 12:20:28 -06:00
14cea95e86
This set of changes addresses two bug scenarios: (1) When an ignored change canceled a resource replacement, any downstream resources referencing computer attributes on that resource would get "diffs didn't match" errors. This happened because the `EvalDiff` implementation was calling `state.MergeDiff(diff)` on the unfiltered diff. Generally this is what you want, so that downstream references catch the "incoming" values. When there's a potential for the diff to change, thought, this results in problems w/ references. Here we solve this by doing away with the separate `EvalNode` for `ignore_changes` processing and integrating it into `EvalDiff`. This allows us to only call `MergeDiff` with the final, filtered diff. (2) When a resource had an ignored change but was still being replaced anyways, the diff was being improperly filtered. This would cause problems during apply when not all attributes were available to perform the replacement. We solve that by deferring actual attribute removal until after we've decided that we do not have to replace the resource.
951 lines
22 KiB
Go
951 lines
22 KiB
Go
package terraform
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import (
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"fmt"
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"strings"
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"github.com/hashicorp/terraform/config"
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"github.com/hashicorp/terraform/dag"
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)
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// ResourceCountTransformer is a GraphTransformer that expands the count
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// out for a specific resource.
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type ResourceCountTransformer struct {
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Resource *config.Resource
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Destroy bool
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Targets []ResourceAddress
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}
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func (t *ResourceCountTransformer) Transform(g *Graph) error {
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// Expand the resource count
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count, err := t.Resource.Count()
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if err != nil {
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return err
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}
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// Don't allow the count to be negative
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if count < 0 {
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return fmt.Errorf("negative count: %d", count)
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}
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// For each count, build and add the node
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nodes := make([]dag.Vertex, 0, count)
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for i := 0; i < count; i++ {
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// Set the index. If our count is 1 we special case it so that
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// we handle the "resource.0" and "resource" boundary properly.
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index := i
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if count == 1 {
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index = -1
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}
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// Save the node for later so we can do connections. Make the
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// proper node depending on if we're just a destroy node or if
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// were a regular node.
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var node dag.Vertex = &graphNodeExpandedResource{
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Index: index,
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Resource: t.Resource,
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Path: g.Path,
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}
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if t.Destroy {
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node = &graphNodeExpandedResourceDestroy{
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graphNodeExpandedResource: node.(*graphNodeExpandedResource),
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}
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}
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// Skip nodes if targeting excludes them
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if !t.nodeIsTargeted(node) {
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continue
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}
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// Add the node now
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nodes = append(nodes, node)
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g.Add(node)
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}
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// Make the dependency connections
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for _, n := range nodes {
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// Connect the dependents. We ignore the return value for missing
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// dependents since that should've been caught at a higher level.
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g.ConnectDependent(n)
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}
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return nil
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}
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func (t *ResourceCountTransformer) nodeIsTargeted(node dag.Vertex) bool {
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// no targets specified, everything stays in the graph
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if len(t.Targets) == 0 {
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return true
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}
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addressable, ok := node.(GraphNodeAddressable)
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if !ok {
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return false
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}
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addr := addressable.ResourceAddress()
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for _, targetAddr := range t.Targets {
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if targetAddr.Equals(addr) {
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return true
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}
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}
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return false
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}
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type graphNodeExpandedResource struct {
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Index int
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Resource *config.Resource
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Path []string
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}
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func (n *graphNodeExpandedResource) Name() string {
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if n.Index == -1 {
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return n.Resource.Id()
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}
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return fmt.Sprintf("%s #%d", n.Resource.Id(), n.Index)
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}
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// GraphNodeAddressable impl.
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func (n *graphNodeExpandedResource) ResourceAddress() *ResourceAddress {
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// We want this to report the logical index properly, so we must undo the
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// special case from the expand
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index := n.Index
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if index == -1 {
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index = 0
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}
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return &ResourceAddress{
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Path: n.Path[1:],
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Index: index,
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InstanceType: TypePrimary,
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Name: n.Resource.Name,
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Type: n.Resource.Type,
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Mode: n.Resource.Mode,
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}
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}
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// graphNodeConfig impl.
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func (n *graphNodeExpandedResource) ConfigType() GraphNodeConfigType {
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return GraphNodeConfigTypeResource
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}
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// GraphNodeDependable impl.
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func (n *graphNodeExpandedResource) DependableName() []string {
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return []string{
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n.Resource.Id(),
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n.stateId(),
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}
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}
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// GraphNodeDependent impl.
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func (n *graphNodeExpandedResource) DependentOn() []string {
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configNode := &GraphNodeConfigResource{Resource: n.Resource}
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result := configNode.DependentOn()
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// Walk the variables to find any count-specific variables we depend on.
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configNode.VarWalk(func(v config.InterpolatedVariable) {
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rv, ok := v.(*config.ResourceVariable)
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if !ok {
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return
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}
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// We only want ourselves
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if rv.ResourceId() != n.Resource.Id() {
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return
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}
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// If this isn't a multi-access (which shouldn't be allowed but
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// is verified elsewhere), then we depend on the specific count
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// of this resource, ignoring ourself (which again should be
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// validated elsewhere).
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if rv.Index > -1 {
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id := fmt.Sprintf("%s.%d", rv.ResourceId(), rv.Index)
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if id != n.stateId() && id != n.stateId()+".0" {
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result = append(result, id)
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}
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}
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})
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return result
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}
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// GraphNodeProviderConsumer
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func (n *graphNodeExpandedResource) ProvidedBy() []string {
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return []string{resourceProvider(n.Resource.Type, n.Resource.Provider)}
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}
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func (n *graphNodeExpandedResource) StateDependencies() []string {
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depsRaw := n.DependentOn()
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deps := make([]string, 0, len(depsRaw))
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for _, d := range depsRaw {
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// Ignore any variable dependencies
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if strings.HasPrefix(d, "var.") {
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continue
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}
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// This is sad. The dependencies are currently in the format of
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// "module.foo.bar" (the full field). This strips the field off.
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if strings.HasPrefix(d, "module.") {
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parts := strings.SplitN(d, ".", 3)
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d = strings.Join(parts[0:2], ".")
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}
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deps = append(deps, d)
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}
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return deps
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}
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// GraphNodeEvalable impl.
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func (n *graphNodeExpandedResource) EvalTree() EvalNode {
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var provider ResourceProvider
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var resourceConfig *ResourceConfig
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// Build the resource. If we aren't part of a multi-resource, then
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// we still consider ourselves as count index zero.
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index := n.Index
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if index < 0 {
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index = 0
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}
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resource := &Resource{
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Name: n.Resource.Name,
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Type: n.Resource.Type,
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CountIndex: index,
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}
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seq := &EvalSequence{Nodes: make([]EvalNode, 0, 5)}
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// Validate the resource
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vseq := &EvalSequence{Nodes: make([]EvalNode, 0, 5)}
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vseq.Nodes = append(vseq.Nodes, &EvalGetProvider{
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Name: n.ProvidedBy()[0],
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Output: &provider,
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})
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vseq.Nodes = append(vseq.Nodes, &EvalInterpolate{
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Config: n.Resource.RawConfig.Copy(),
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Resource: resource,
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Output: &resourceConfig,
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})
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vseq.Nodes = append(vseq.Nodes, &EvalValidateResource{
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Provider: &provider,
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Config: &resourceConfig,
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ResourceName: n.Resource.Name,
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ResourceType: n.Resource.Type,
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ResourceMode: n.Resource.Mode,
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})
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// Validate all the provisioners
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for _, p := range n.Resource.Provisioners {
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var provisioner ResourceProvisioner
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vseq.Nodes = append(vseq.Nodes, &EvalGetProvisioner{
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Name: p.Type,
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Output: &provisioner,
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}, &EvalInterpolate{
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Config: p.RawConfig.Copy(),
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Resource: resource,
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Output: &resourceConfig,
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}, &EvalValidateProvisioner{
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Provisioner: &provisioner,
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Config: &resourceConfig,
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})
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}
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// Add the validation operations
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seq.Nodes = append(seq.Nodes, &EvalOpFilter{
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Ops: []walkOperation{walkValidate},
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Node: vseq,
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})
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// Build instance info
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info := n.instanceInfo()
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seq.Nodes = append(seq.Nodes, &EvalInstanceInfo{Info: info})
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// Each resource mode has its own lifecycle
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switch n.Resource.Mode {
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case config.ManagedResourceMode:
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seq.Nodes = append(
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seq.Nodes,
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n.managedResourceEvalNodes(resource, info, resourceConfig)...,
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)
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case config.DataResourceMode:
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seq.Nodes = append(
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seq.Nodes,
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n.dataResourceEvalNodes(resource, info, resourceConfig)...,
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)
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default:
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panic(fmt.Errorf("unsupported resource mode %s", n.Resource.Mode))
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}
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return seq
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}
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func (n *graphNodeExpandedResource) managedResourceEvalNodes(resource *Resource, info *InstanceInfo, resourceConfig *ResourceConfig) []EvalNode {
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var diff *InstanceDiff
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var provider ResourceProvider
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var state *InstanceState
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nodes := make([]EvalNode, 0, 5)
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// Refresh the resource
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nodes = append(nodes, &EvalOpFilter{
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Ops: []walkOperation{walkRefresh},
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Node: &EvalSequence{
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Nodes: []EvalNode{
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&EvalGetProvider{
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Name: n.ProvidedBy()[0],
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Output: &provider,
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},
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&EvalReadState{
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Name: n.stateId(),
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Output: &state,
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},
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&EvalRefresh{
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Info: info,
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Provider: &provider,
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State: &state,
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Output: &state,
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},
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&EvalWriteState{
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Name: n.stateId(),
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ResourceType: n.Resource.Type,
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Provider: n.Resource.Provider,
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Dependencies: n.StateDependencies(),
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State: &state,
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},
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},
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},
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})
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// Diff the resource
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nodes = append(nodes, &EvalOpFilter{
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Ops: []walkOperation{walkPlan},
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Node: &EvalSequence{
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Nodes: []EvalNode{
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&EvalInterpolate{
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Config: n.Resource.RawConfig.Copy(),
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Resource: resource,
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Output: &resourceConfig,
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},
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&EvalGetProvider{
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Name: n.ProvidedBy()[0],
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Output: &provider,
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},
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// Re-run validation to catch any errors we missed, e.g. type
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// mismatches on computed values.
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&EvalValidateResource{
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Provider: &provider,
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Config: &resourceConfig,
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ResourceName: n.Resource.Name,
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ResourceType: n.Resource.Type,
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ResourceMode: n.Resource.Mode,
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IgnoreWarnings: true,
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},
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&EvalReadState{
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Name: n.stateId(),
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Output: &state,
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},
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&EvalDiff{
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Info: info,
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Config: &resourceConfig,
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Resource: n.Resource,
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Provider: &provider,
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State: &state,
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OutputDiff: &diff,
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OutputState: &state,
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},
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&EvalCheckPreventDestroy{
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Resource: n.Resource,
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Diff: &diff,
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},
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&EvalWriteState{
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Name: n.stateId(),
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ResourceType: n.Resource.Type,
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Provider: n.Resource.Provider,
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Dependencies: n.StateDependencies(),
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State: &state,
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},
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&EvalWriteDiff{
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Name: n.stateId(),
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Diff: &diff,
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},
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},
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},
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})
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// Diff the resource for destruction
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nodes = append(nodes, &EvalOpFilter{
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Ops: []walkOperation{walkPlanDestroy},
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Node: &EvalSequence{
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Nodes: []EvalNode{
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&EvalReadState{
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Name: n.stateId(),
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Output: &state,
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},
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&EvalDiffDestroy{
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Info: info,
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State: &state,
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Output: &diff,
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},
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&EvalCheckPreventDestroy{
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Resource: n.Resource,
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Diff: &diff,
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},
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&EvalWriteDiff{
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Name: n.stateId(),
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Diff: &diff,
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},
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},
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},
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})
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// Apply
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var diffApply *InstanceDiff
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var err error
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var createNew bool
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var createBeforeDestroyEnabled bool
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nodes = append(nodes, &EvalOpFilter{
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Ops: []walkOperation{walkApply, walkDestroy},
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Node: &EvalSequence{
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Nodes: []EvalNode{
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// Get the saved diff for apply
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&EvalReadDiff{
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Name: n.stateId(),
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Diff: &diffApply,
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},
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// We don't want to do any destroys
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&EvalIf{
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If: func(ctx EvalContext) (bool, error) {
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if diffApply == nil {
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return true, EvalEarlyExitError{}
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}
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if diffApply.Destroy && len(diffApply.Attributes) == 0 {
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return true, EvalEarlyExitError{}
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}
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diffApply.Destroy = false
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return true, nil
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},
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Then: EvalNoop{},
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},
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&EvalIf{
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If: func(ctx EvalContext) (bool, error) {
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destroy := false
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if diffApply != nil {
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destroy = diffApply.Destroy || diffApply.RequiresNew()
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}
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createBeforeDestroyEnabled =
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n.Resource.Lifecycle.CreateBeforeDestroy &&
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destroy
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return createBeforeDestroyEnabled, nil
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},
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Then: &EvalDeposeState{
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Name: n.stateId(),
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},
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},
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&EvalInterpolate{
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Config: n.Resource.RawConfig.Copy(),
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Resource: resource,
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Output: &resourceConfig,
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},
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&EvalGetProvider{
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Name: n.ProvidedBy()[0],
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Output: &provider,
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},
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&EvalReadState{
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Name: n.stateId(),
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Output: &state,
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},
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// Re-run validation to catch any errors we missed, e.g. type
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// mismatches on computed values.
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&EvalValidateResource{
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Provider: &provider,
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Config: &resourceConfig,
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ResourceName: n.Resource.Name,
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ResourceType: n.Resource.Type,
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ResourceMode: n.Resource.Mode,
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IgnoreWarnings: true,
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},
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&EvalDiff{
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Info: info,
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Config: &resourceConfig,
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Resource: n.Resource,
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Provider: &provider,
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Diff: &diffApply,
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State: &state,
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OutputDiff: &diffApply,
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},
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// Get the saved diff
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&EvalReadDiff{
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Name: n.stateId(),
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Diff: &diff,
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},
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// Compare the diffs
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&EvalCompareDiff{
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Info: info,
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One: &diff,
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Two: &diffApply,
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},
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&EvalGetProvider{
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Name: n.ProvidedBy()[0],
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Output: &provider,
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},
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&EvalReadState{
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Name: n.stateId(),
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Output: &state,
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},
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&EvalApply{
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Info: info,
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State: &state,
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Diff: &diffApply,
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Provider: &provider,
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Output: &state,
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Error: &err,
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CreateNew: &createNew,
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},
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&EvalWriteState{
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Name: n.stateId(),
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ResourceType: n.Resource.Type,
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Provider: n.Resource.Provider,
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Dependencies: n.StateDependencies(),
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State: &state,
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},
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&EvalApplyProvisioners{
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Info: info,
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State: &state,
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Resource: n.Resource,
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InterpResource: resource,
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CreateNew: &createNew,
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Error: &err,
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},
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&EvalIf{
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If: func(ctx EvalContext) (bool, error) {
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return createBeforeDestroyEnabled && err != nil, nil
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},
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Then: &EvalUndeposeState{
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Name: n.stateId(),
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State: &state,
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},
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Else: &EvalWriteState{
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Name: n.stateId(),
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ResourceType: n.Resource.Type,
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Provider: n.Resource.Provider,
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Dependencies: n.StateDependencies(),
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State: &state,
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},
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},
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// We clear the diff out here so that future nodes
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// don't see a diff that is already complete. There
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// is no longer a diff!
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&EvalWriteDiff{
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Name: n.stateId(),
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Diff: nil,
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},
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&EvalApplyPost{
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Info: info,
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State: &state,
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Error: &err,
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},
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&EvalUpdateStateHook{},
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},
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},
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})
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return nodes
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}
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|
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func (n *graphNodeExpandedResource) dataResourceEvalNodes(resource *Resource, info *InstanceInfo, resourceConfig *ResourceConfig) []EvalNode {
|
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//var diff *InstanceDiff
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var provider ResourceProvider
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var config *ResourceConfig
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var diff *InstanceDiff
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var state *InstanceState
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|
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nodes := make([]EvalNode, 0, 5)
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|
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// Refresh the resource
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nodes = append(nodes, &EvalOpFilter{
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Ops: []walkOperation{walkRefresh},
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Node: &EvalSequence{
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Nodes: []EvalNode{
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// Always destroy the existing state first, since we must
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// make sure that values from a previous read will not
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// get interpolated if we end up needing to defer our
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// loading until apply time.
|
|
&EvalWriteState{
|
|
Name: n.stateId(),
|
|
ResourceType: n.Resource.Type,
|
|
Provider: n.Resource.Provider,
|
|
Dependencies: n.StateDependencies(),
|
|
State: &state, // state is nil here
|
|
},
|
|
|
|
&EvalInterpolate{
|
|
Config: n.Resource.RawConfig.Copy(),
|
|
Resource: resource,
|
|
Output: &config,
|
|
},
|
|
|
|
// The rest of this pass can proceed only if there are no
|
|
// computed values in our config.
|
|
// (If there are, we'll deal with this during the plan and
|
|
// apply phases.)
|
|
&EvalIf{
|
|
If: func(ctx EvalContext) (bool, error) {
|
|
if config.ComputedKeys != nil && len(config.ComputedKeys) > 0 {
|
|
return true, EvalEarlyExitError{}
|
|
}
|
|
|
|
return true, nil
|
|
},
|
|
Then: EvalNoop{},
|
|
},
|
|
|
|
// The remainder of this pass is the same as running
|
|
// a "plan" pass immediately followed by an "apply" pass,
|
|
// populating the state early so it'll be available to
|
|
// provider configurations that need this data during
|
|
// refresh/plan.
|
|
|
|
&EvalGetProvider{
|
|
Name: n.ProvidedBy()[0],
|
|
Output: &provider,
|
|
},
|
|
|
|
&EvalReadDataDiff{
|
|
Info: info,
|
|
Config: &config,
|
|
Provider: &provider,
|
|
Output: &diff,
|
|
OutputState: &state,
|
|
},
|
|
|
|
&EvalReadDataApply{
|
|
Info: info,
|
|
Diff: &diff,
|
|
Provider: &provider,
|
|
Output: &state,
|
|
},
|
|
|
|
&EvalWriteState{
|
|
Name: n.stateId(),
|
|
ResourceType: n.Resource.Type,
|
|
Provider: n.Resource.Provider,
|
|
Dependencies: n.StateDependencies(),
|
|
State: &state,
|
|
},
|
|
|
|
&EvalUpdateStateHook{},
|
|
},
|
|
},
|
|
})
|
|
|
|
// Diff the resource
|
|
nodes = append(nodes, &EvalOpFilter{
|
|
Ops: []walkOperation{walkPlan},
|
|
Node: &EvalSequence{
|
|
Nodes: []EvalNode{
|
|
|
|
&EvalReadState{
|
|
Name: n.stateId(),
|
|
Output: &state,
|
|
},
|
|
|
|
// We need to re-interpolate the config here because some
|
|
// of the attributes may have become computed during
|
|
// earlier planning, due to other resources having
|
|
// "requires new resource" diffs.
|
|
&EvalInterpolate{
|
|
Config: n.Resource.RawConfig.Copy(),
|
|
Resource: resource,
|
|
Output: &config,
|
|
},
|
|
|
|
&EvalIf{
|
|
If: func(ctx EvalContext) (bool, error) {
|
|
computed := config.ComputedKeys != nil && len(config.ComputedKeys) > 0
|
|
|
|
// If the configuration is complete and we
|
|
// already have a state then we don't need to
|
|
// do any further work during apply, because we
|
|
// already populated the state during refresh.
|
|
if !computed && state != nil {
|
|
return true, EvalEarlyExitError{}
|
|
}
|
|
|
|
return true, nil
|
|
},
|
|
Then: EvalNoop{},
|
|
},
|
|
|
|
&EvalGetProvider{
|
|
Name: n.ProvidedBy()[0],
|
|
Output: &provider,
|
|
},
|
|
|
|
&EvalReadDataDiff{
|
|
Info: info,
|
|
Config: &config,
|
|
Provider: &provider,
|
|
Output: &diff,
|
|
OutputState: &state,
|
|
},
|
|
|
|
&EvalWriteState{
|
|
Name: n.stateId(),
|
|
ResourceType: n.Resource.Type,
|
|
Provider: n.Resource.Provider,
|
|
Dependencies: n.StateDependencies(),
|
|
State: &state,
|
|
},
|
|
|
|
&EvalWriteDiff{
|
|
Name: n.stateId(),
|
|
Diff: &diff,
|
|
},
|
|
},
|
|
},
|
|
})
|
|
|
|
// Diff the resource for destruction
|
|
nodes = append(nodes, &EvalOpFilter{
|
|
Ops: []walkOperation{walkPlanDestroy},
|
|
Node: &EvalSequence{
|
|
Nodes: []EvalNode{
|
|
|
|
&EvalReadState{
|
|
Name: n.stateId(),
|
|
Output: &state,
|
|
},
|
|
|
|
// Since EvalDiffDestroy doesn't interact with the
|
|
// provider at all, we can safely share the same
|
|
// implementation for data vs. managed resources.
|
|
&EvalDiffDestroy{
|
|
Info: info,
|
|
State: &state,
|
|
Output: &diff,
|
|
},
|
|
|
|
&EvalWriteDiff{
|
|
Name: n.stateId(),
|
|
Diff: &diff,
|
|
},
|
|
},
|
|
},
|
|
})
|
|
|
|
// Apply
|
|
nodes = append(nodes, &EvalOpFilter{
|
|
Ops: []walkOperation{walkApply, walkDestroy},
|
|
Node: &EvalSequence{
|
|
Nodes: []EvalNode{
|
|
// Get the saved diff for apply
|
|
&EvalReadDiff{
|
|
Name: n.stateId(),
|
|
Diff: &diff,
|
|
},
|
|
|
|
// Stop here if we don't actually have a diff
|
|
&EvalIf{
|
|
If: func(ctx EvalContext) (bool, error) {
|
|
if diff == nil {
|
|
return true, EvalEarlyExitError{}
|
|
}
|
|
|
|
if len(diff.Attributes) == 0 {
|
|
return true, EvalEarlyExitError{}
|
|
}
|
|
|
|
return true, nil
|
|
},
|
|
Then: EvalNoop{},
|
|
},
|
|
|
|
// We need to re-interpolate the config here, rather than
|
|
// just using the diff's values directly, because we've
|
|
// potentially learned more variable values during the
|
|
// apply pass that weren't known when the diff was produced.
|
|
&EvalInterpolate{
|
|
Config: n.Resource.RawConfig.Copy(),
|
|
Resource: resource,
|
|
Output: &config,
|
|
},
|
|
|
|
&EvalGetProvider{
|
|
Name: n.ProvidedBy()[0],
|
|
Output: &provider,
|
|
},
|
|
|
|
// Make a new diff with our newly-interpolated config.
|
|
&EvalReadDataDiff{
|
|
Info: info,
|
|
Config: &config,
|
|
Previous: &diff,
|
|
Provider: &provider,
|
|
Output: &diff,
|
|
},
|
|
|
|
&EvalReadDataApply{
|
|
Info: info,
|
|
Diff: &diff,
|
|
Provider: &provider,
|
|
Output: &state,
|
|
},
|
|
|
|
&EvalWriteState{
|
|
Name: n.stateId(),
|
|
ResourceType: n.Resource.Type,
|
|
Provider: n.Resource.Provider,
|
|
Dependencies: n.StateDependencies(),
|
|
State: &state,
|
|
},
|
|
|
|
// Clear the diff now that we've applied it, so
|
|
// later nodes won't see a diff that's now a no-op.
|
|
&EvalWriteDiff{
|
|
Name: n.stateId(),
|
|
Diff: nil,
|
|
},
|
|
|
|
&EvalUpdateStateHook{},
|
|
},
|
|
},
|
|
})
|
|
|
|
return nodes
|
|
}
|
|
|
|
// instanceInfo is used for EvalTree.
|
|
func (n *graphNodeExpandedResource) instanceInfo() *InstanceInfo {
|
|
return &InstanceInfo{Id: n.stateId(), Type: n.Resource.Type}
|
|
}
|
|
|
|
// stateId is the name used for the state key
|
|
func (n *graphNodeExpandedResource) stateId() string {
|
|
if n.Index == -1 {
|
|
return n.Resource.Id()
|
|
}
|
|
|
|
return fmt.Sprintf("%s.%d", n.Resource.Id(), n.Index)
|
|
}
|
|
|
|
// GraphNodeStateRepresentative impl.
|
|
func (n *graphNodeExpandedResource) StateId() []string {
|
|
return []string{n.stateId()}
|
|
}
|
|
|
|
// graphNodeExpandedResourceDestroy represents an expanded resource that
|
|
// is to be destroyed.
|
|
type graphNodeExpandedResourceDestroy struct {
|
|
*graphNodeExpandedResource
|
|
}
|
|
|
|
func (n *graphNodeExpandedResourceDestroy) Name() string {
|
|
return fmt.Sprintf("%s (destroy)", n.graphNodeExpandedResource.Name())
|
|
}
|
|
|
|
// graphNodeConfig impl.
|
|
func (n *graphNodeExpandedResourceDestroy) ConfigType() GraphNodeConfigType {
|
|
return GraphNodeConfigTypeResource
|
|
}
|
|
|
|
// GraphNodeEvalable impl.
|
|
func (n *graphNodeExpandedResourceDestroy) EvalTree() EvalNode {
|
|
info := n.instanceInfo()
|
|
|
|
var diffApply *InstanceDiff
|
|
var provider ResourceProvider
|
|
var state *InstanceState
|
|
var err error
|
|
return &EvalOpFilter{
|
|
Ops: []walkOperation{walkApply, walkDestroy},
|
|
Node: &EvalSequence{
|
|
Nodes: []EvalNode{
|
|
// Get the saved diff for apply
|
|
&EvalReadDiff{
|
|
Name: n.stateId(),
|
|
Diff: &diffApply,
|
|
},
|
|
|
|
// Filter the diff so we only get the destroy
|
|
&EvalFilterDiff{
|
|
Diff: &diffApply,
|
|
Output: &diffApply,
|
|
Destroy: true,
|
|
},
|
|
|
|
// If we're not destroying, then compare diffs
|
|
&EvalIf{
|
|
If: func(ctx EvalContext) (bool, error) {
|
|
if diffApply != nil && diffApply.Destroy {
|
|
return true, nil
|
|
}
|
|
|
|
return true, EvalEarlyExitError{}
|
|
},
|
|
Then: EvalNoop{},
|
|
},
|
|
|
|
&EvalGetProvider{
|
|
Name: n.ProvidedBy()[0],
|
|
Output: &provider,
|
|
},
|
|
&EvalReadState{
|
|
Name: n.stateId(),
|
|
Output: &state,
|
|
},
|
|
&EvalRequireState{
|
|
State: &state,
|
|
},
|
|
// Make sure we handle data sources properly.
|
|
&EvalIf{
|
|
If: func(ctx EvalContext) (bool, error) {
|
|
if n.Resource.Mode == config.DataResourceMode {
|
|
return true, nil
|
|
}
|
|
|
|
return false, nil
|
|
},
|
|
|
|
Then: &EvalReadDataApply{
|
|
Info: info,
|
|
Diff: &diffApply,
|
|
Provider: &provider,
|
|
Output: &state,
|
|
},
|
|
Else: &EvalApply{
|
|
Info: info,
|
|
State: &state,
|
|
Diff: &diffApply,
|
|
Provider: &provider,
|
|
Output: &state,
|
|
Error: &err,
|
|
},
|
|
},
|
|
&EvalWriteState{
|
|
Name: n.stateId(),
|
|
ResourceType: n.Resource.Type,
|
|
Provider: n.Resource.Provider,
|
|
Dependencies: n.StateDependencies(),
|
|
State: &state,
|
|
},
|
|
&EvalApplyPost{
|
|
Info: info,
|
|
State: &state,
|
|
Error: &err,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
}
|