opentofu/internal/tofu/node_resource_plan_destroy.go

133 lines
4.5 KiB
Go
Raw Normal View History

// Copyright (c) The OpenTofu Authors
// SPDX-License-Identifier: MPL-2.0
// Copyright (c) 2023 HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
2023-09-20 07:16:53 -05:00
package tofu
terraform: ugly huge change to weave in new HCL2-oriented types Due to how deeply the configuration types go into Terraform Core, there isn't a great way to switch out to HCL2 gradually. As a consequence, this huge commit gets us from the old state to a _compilable_ new state, but does not yet attempt to fix any tests and has a number of known missing parts and bugs. We will continue to iterate on this in forthcoming commits, heading back towards passing tests and making Terraform fully-functional again. The three main goals here are: - Use the configuration models from the "configs" package instead of the older models in the "config" package, which is now deprecated and preserved only to help us write our migration tool. - Do expression inspection and evaluation using the functionality of the new "lang" package, instead of the Interpolator type and related functionality in the main "terraform" package. - Represent addresses of various objects using types in the addrs package, rather than hand-constructed strings. This is not critical to support the above, but was a big help during the implementation of these other points since it made it much more explicit what kind of address is expected in each context. Since our new packages are built to accommodate some future planned features that are not yet implemented (e.g. the "for_each" argument on resources, "count"/"for_each" on modules), and since there's still a fair amount of functionality still using old-style APIs, there is a moderate amount of shimming here to connect new assumptions with old, hopefully in a way that makes it easier to find and eliminate these shims later. I apologize in advance to the person who inevitably just found this huge commit while spelunking through the commit history.
2018-04-30 12:33:53 -05:00
import (
"fmt"
"github.com/opentofu/opentofu/internal/addrs"
"github.com/opentofu/opentofu/internal/plans"
"github.com/opentofu/opentofu/internal/states"
"github.com/opentofu/opentofu/internal/tfdiags"
"github.com/zclconf/go-cty/cty"
terraform: ugly huge change to weave in new HCL2-oriented types Due to how deeply the configuration types go into Terraform Core, there isn't a great way to switch out to HCL2 gradually. As a consequence, this huge commit gets us from the old state to a _compilable_ new state, but does not yet attempt to fix any tests and has a number of known missing parts and bugs. We will continue to iterate on this in forthcoming commits, heading back towards passing tests and making Terraform fully-functional again. The three main goals here are: - Use the configuration models from the "configs" package instead of the older models in the "config" package, which is now deprecated and preserved only to help us write our migration tool. - Do expression inspection and evaluation using the functionality of the new "lang" package, instead of the Interpolator type and related functionality in the main "terraform" package. - Represent addresses of various objects using types in the addrs package, rather than hand-constructed strings. This is not critical to support the above, but was a big help during the implementation of these other points since it made it much more explicit what kind of address is expected in each context. Since our new packages are built to accommodate some future planned features that are not yet implemented (e.g. the "for_each" argument on resources, "count"/"for_each" on modules), and since there's still a fair amount of functionality still using old-style APIs, there is a moderate amount of shimming here to connect new assumptions with old, hopefully in a way that makes it easier to find and eliminate these shims later. I apologize in advance to the person who inevitably just found this huge commit while spelunking through the commit history.
2018-04-30 12:33:53 -05:00
)
// NodePlanDestroyableResourceInstance represents a resource that is ready
// to be planned for destruction.
type NodePlanDestroyableResourceInstance struct {
*NodeAbstractResourceInstance
// skipRefresh indicates that we should skip refreshing
skipRefresh bool
}
terraform: ugly huge change to weave in new HCL2-oriented types Due to how deeply the configuration types go into Terraform Core, there isn't a great way to switch out to HCL2 gradually. As a consequence, this huge commit gets us from the old state to a _compilable_ new state, but does not yet attempt to fix any tests and has a number of known missing parts and bugs. We will continue to iterate on this in forthcoming commits, heading back towards passing tests and making Terraform fully-functional again. The three main goals here are: - Use the configuration models from the "configs" package instead of the older models in the "config" package, which is now deprecated and preserved only to help us write our migration tool. - Do expression inspection and evaluation using the functionality of the new "lang" package, instead of the Interpolator type and related functionality in the main "terraform" package. - Represent addresses of various objects using types in the addrs package, rather than hand-constructed strings. This is not critical to support the above, but was a big help during the implementation of these other points since it made it much more explicit what kind of address is expected in each context. Since our new packages are built to accommodate some future planned features that are not yet implemented (e.g. the "for_each" argument on resources, "count"/"for_each" on modules), and since there's still a fair amount of functionality still using old-style APIs, there is a moderate amount of shimming here to connect new assumptions with old, hopefully in a way that makes it easier to find and eliminate these shims later. I apologize in advance to the person who inevitably just found this huge commit while spelunking through the commit history.
2018-04-30 12:33:53 -05:00
var (
_ GraphNodeModuleInstance = (*NodePlanDestroyableResourceInstance)(nil)
terraform: ugly huge change to weave in new HCL2-oriented types Due to how deeply the configuration types go into Terraform Core, there isn't a great way to switch out to HCL2 gradually. As a consequence, this huge commit gets us from the old state to a _compilable_ new state, but does not yet attempt to fix any tests and has a number of known missing parts and bugs. We will continue to iterate on this in forthcoming commits, heading back towards passing tests and making Terraform fully-functional again. The three main goals here are: - Use the configuration models from the "configs" package instead of the older models in the "config" package, which is now deprecated and preserved only to help us write our migration tool. - Do expression inspection and evaluation using the functionality of the new "lang" package, instead of the Interpolator type and related functionality in the main "terraform" package. - Represent addresses of various objects using types in the addrs package, rather than hand-constructed strings. This is not critical to support the above, but was a big help during the implementation of these other points since it made it much more explicit what kind of address is expected in each context. Since our new packages are built to accommodate some future planned features that are not yet implemented (e.g. the "for_each" argument on resources, "count"/"for_each" on modules), and since there's still a fair amount of functionality still using old-style APIs, there is a moderate amount of shimming here to connect new assumptions with old, hopefully in a way that makes it easier to find and eliminate these shims later. I apologize in advance to the person who inevitably just found this huge commit while spelunking through the commit history.
2018-04-30 12:33:53 -05:00
_ GraphNodeReferenceable = (*NodePlanDestroyableResourceInstance)(nil)
_ GraphNodeReferencer = (*NodePlanDestroyableResourceInstance)(nil)
_ GraphNodeDestroyer = (*NodePlanDestroyableResourceInstance)(nil)
_ GraphNodeConfigResource = (*NodePlanDestroyableResourceInstance)(nil)
terraform: ugly huge change to weave in new HCL2-oriented types Due to how deeply the configuration types go into Terraform Core, there isn't a great way to switch out to HCL2 gradually. As a consequence, this huge commit gets us from the old state to a _compilable_ new state, but does not yet attempt to fix any tests and has a number of known missing parts and bugs. We will continue to iterate on this in forthcoming commits, heading back towards passing tests and making Terraform fully-functional again. The three main goals here are: - Use the configuration models from the "configs" package instead of the older models in the "config" package, which is now deprecated and preserved only to help us write our migration tool. - Do expression inspection and evaluation using the functionality of the new "lang" package, instead of the Interpolator type and related functionality in the main "terraform" package. - Represent addresses of various objects using types in the addrs package, rather than hand-constructed strings. This is not critical to support the above, but was a big help during the implementation of these other points since it made it much more explicit what kind of address is expected in each context. Since our new packages are built to accommodate some future planned features that are not yet implemented (e.g. the "for_each" argument on resources, "count"/"for_each" on modules), and since there's still a fair amount of functionality still using old-style APIs, there is a moderate amount of shimming here to connect new assumptions with old, hopefully in a way that makes it easier to find and eliminate these shims later. I apologize in advance to the person who inevitably just found this huge commit while spelunking through the commit history.
2018-04-30 12:33:53 -05:00
_ GraphNodeResourceInstance = (*NodePlanDestroyableResourceInstance)(nil)
_ GraphNodeAttachResourceConfig = (*NodePlanDestroyableResourceInstance)(nil)
_ GraphNodeAttachResourceState = (*NodePlanDestroyableResourceInstance)(nil)
2020-09-29 13:31:20 -05:00
_ GraphNodeExecutable = (*NodePlanDestroyableResourceInstance)(nil)
_ GraphNodeProviderConsumer = (*NodePlanDestroyableResourceInstance)(nil)
terraform: ugly huge change to weave in new HCL2-oriented types Due to how deeply the configuration types go into Terraform Core, there isn't a great way to switch out to HCL2 gradually. As a consequence, this huge commit gets us from the old state to a _compilable_ new state, but does not yet attempt to fix any tests and has a number of known missing parts and bugs. We will continue to iterate on this in forthcoming commits, heading back towards passing tests and making Terraform fully-functional again. The three main goals here are: - Use the configuration models from the "configs" package instead of the older models in the "config" package, which is now deprecated and preserved only to help us write our migration tool. - Do expression inspection and evaluation using the functionality of the new "lang" package, instead of the Interpolator type and related functionality in the main "terraform" package. - Represent addresses of various objects using types in the addrs package, rather than hand-constructed strings. This is not critical to support the above, but was a big help during the implementation of these other points since it made it much more explicit what kind of address is expected in each context. Since our new packages are built to accommodate some future planned features that are not yet implemented (e.g. the "for_each" argument on resources, "count"/"for_each" on modules), and since there's still a fair amount of functionality still using old-style APIs, there is a moderate amount of shimming here to connect new assumptions with old, hopefully in a way that makes it easier to find and eliminate these shims later. I apologize in advance to the person who inevitably just found this huge commit while spelunking through the commit history.
2018-04-30 12:33:53 -05:00
)
// GraphNodeDestroyer
terraform: ugly huge change to weave in new HCL2-oriented types Due to how deeply the configuration types go into Terraform Core, there isn't a great way to switch out to HCL2 gradually. As a consequence, this huge commit gets us from the old state to a _compilable_ new state, but does not yet attempt to fix any tests and has a number of known missing parts and bugs. We will continue to iterate on this in forthcoming commits, heading back towards passing tests and making Terraform fully-functional again. The three main goals here are: - Use the configuration models from the "configs" package instead of the older models in the "config" package, which is now deprecated and preserved only to help us write our migration tool. - Do expression inspection and evaluation using the functionality of the new "lang" package, instead of the Interpolator type and related functionality in the main "terraform" package. - Represent addresses of various objects using types in the addrs package, rather than hand-constructed strings. This is not critical to support the above, but was a big help during the implementation of these other points since it made it much more explicit what kind of address is expected in each context. Since our new packages are built to accommodate some future planned features that are not yet implemented (e.g. the "for_each" argument on resources, "count"/"for_each" on modules), and since there's still a fair amount of functionality still using old-style APIs, there is a moderate amount of shimming here to connect new assumptions with old, hopefully in a way that makes it easier to find and eliminate these shims later. I apologize in advance to the person who inevitably just found this huge commit while spelunking through the commit history.
2018-04-30 12:33:53 -05:00
func (n *NodePlanDestroyableResourceInstance) DestroyAddr() *addrs.AbsResourceInstance {
addr := n.ResourceInstanceAddr()
return &addr
}
// GraphNodeEvalable
func (n *NodePlanDestroyableResourceInstance) Execute(ctx EvalContext, op walkOperation) (diags tfdiags.Diagnostics) {
terraform: ugly huge change to weave in new HCL2-oriented types Due to how deeply the configuration types go into Terraform Core, there isn't a great way to switch out to HCL2 gradually. As a consequence, this huge commit gets us from the old state to a _compilable_ new state, but does not yet attempt to fix any tests and has a number of known missing parts and bugs. We will continue to iterate on this in forthcoming commits, heading back towards passing tests and making Terraform fully-functional again. The three main goals here are: - Use the configuration models from the "configs" package instead of the older models in the "config" package, which is now deprecated and preserved only to help us write our migration tool. - Do expression inspection and evaluation using the functionality of the new "lang" package, instead of the Interpolator type and related functionality in the main "terraform" package. - Represent addresses of various objects using types in the addrs package, rather than hand-constructed strings. This is not critical to support the above, but was a big help during the implementation of these other points since it made it much more explicit what kind of address is expected in each context. Since our new packages are built to accommodate some future planned features that are not yet implemented (e.g. the "for_each" argument on resources, "count"/"for_each" on modules), and since there's still a fair amount of functionality still using old-style APIs, there is a moderate amount of shimming here to connect new assumptions with old, hopefully in a way that makes it easier to find and eliminate these shims later. I apologize in advance to the person who inevitably just found this huge commit while spelunking through the commit history.
2018-04-30 12:33:53 -05:00
addr := n.ResourceInstanceAddr()
switch addr.Resource.Resource.Mode {
case addrs.ManagedResourceMode:
return n.managedResourceExecute(ctx, op)
case addrs.DataResourceMode:
return n.dataResourceExecute(ctx, op)
default:
panic(fmt.Errorf("unsupported resource mode %s", n.Config.Mode))
}
}
func (n *NodePlanDestroyableResourceInstance) managedResourceExecute(ctx EvalContext, op walkOperation) (diags tfdiags.Diagnostics) {
addr := n.ResourceInstanceAddr()
diags = diags.Append(n.resolveProvider(ctx, false))
if diags.HasErrors() {
return diags
}
// Declare a bunch of variables that are used for state during
// evaluation. These are written to by address in the EvalNodes we
// declare below.
var change *plans.ResourceInstanceChange
var state *states.ResourceInstanceObject
Eval() Refactor: Plan Edition (#27177) * terraforn: refactor EvalRefresh EvalRefresh.Eval(ctx) is now Refresh(evalRefreshReqest, ctx). While none of the inner logic of the function has changed, it now returns a states.ResourceInstanceObject instead of updating a pointer. This is a human-centric change, meant to make the logic flow (in the calling functions) easier to follow. * terraform: refactor EvalReadDataPlan and Apply This is a very minor refactor that removes the (currently) redundant types EvalReadDataPlan and EvalReadDataApply in favor of using EvalReadData with a Plan and Apply functions. This is in effect an aesthetic change; since there is no longer an Eval() abstraction we can rename functions to make their functionality as obvious as possible. * terraform: refactor EvalCheckPlannedChange EvalCheckPlannedChange was only used by NodeApplyableResourceInstance and has been refactored into a method on that type called checkPlannedChange. * terraform: refactor EvalDiff.Eval EvalDiff.Eval is now a method on NodeResourceAbstracted called Plan which takes as a parameter an EvalPlanRequest. Instead of updating pointers it returns a new plan and state. I removed as many redundant fields from the original EvalDiff struct as possible. * terraform: refactor EvalReduceDiff EvalReduceDiff is now reducePlan, a regular function (without a method) that returns a value. * terraform: refactor EvalDiffDestroy EvalDiffDestroy.Eval is now NodeAbstractResourceInstance.PlanDestroy which takes ctx, state and optional DeposedKey and returns a change. I've removed the state return value since it was only ever returning a nil state. * terraform: refactor EvalWriteDiff EvalWriteDiff.Eval is now NodeAbstractResourceInstance.WriteChange. * rename files to something more logical * terrafrom: refresh refactor, continued! I had originally made Refresh a stand-alone function since it was (obnoxiously) called from a graphNodeImportStateSub, but after some (greatly appreciated) prompting in the PR I instead made it a method on the NodeAbstractResourceInstance, in keeping with the other refactored eval nodes, and then built a NodeAbstractResourceInstance inside import. Since I did that I could also remove my duplicated 'writeState' code inside graphNodeImportStateSub and use n.writeResourceInstanceState, so double thanks! * unexport eval methods * re-refactor Plan, it made more sense on NodeAbstractResourceInstance. Sorry * Remove uninformative `Eval`s from EvalReadData, consolidate to a single file, and rename file to match function names. * manual rebase
2020-12-08 07:50:30 -06:00
state, err := n.readResourceInstanceState(ctx, addr)
diags = diags.Append(err)
if diags.HasErrors() {
return diags
2020-09-29 13:31:20 -05:00
}
// If we are in the "skip refresh" mode then we will have skipped over our
// usual opportunity to update the previous run state and refresh state
// with the result of any provider schema upgrades, so we'll compensate
// by doing that here.
//
// NOTE: this is coupled with logic in Context.destroyPlan which skips
// running a normal plan walk when refresh is enabled. These two
// conditionals must agree (be exactly opposite) in order to get the
// correct behavior in both cases.
if n.skipRefresh {
diags = diags.Append(n.writeResourceInstanceState(ctx, state, prevRunState))
if diags.HasErrors() {
return diags
}
diags = diags.Append(n.writeResourceInstanceState(ctx, state, refreshState))
if diags.HasErrors() {
return diags
}
}
Eval() Refactor: Plan Edition (#27177) * terraforn: refactor EvalRefresh EvalRefresh.Eval(ctx) is now Refresh(evalRefreshReqest, ctx). While none of the inner logic of the function has changed, it now returns a states.ResourceInstanceObject instead of updating a pointer. This is a human-centric change, meant to make the logic flow (in the calling functions) easier to follow. * terraform: refactor EvalReadDataPlan and Apply This is a very minor refactor that removes the (currently) redundant types EvalReadDataPlan and EvalReadDataApply in favor of using EvalReadData with a Plan and Apply functions. This is in effect an aesthetic change; since there is no longer an Eval() abstraction we can rename functions to make their functionality as obvious as possible. * terraform: refactor EvalCheckPlannedChange EvalCheckPlannedChange was only used by NodeApplyableResourceInstance and has been refactored into a method on that type called checkPlannedChange. * terraform: refactor EvalDiff.Eval EvalDiff.Eval is now a method on NodeResourceAbstracted called Plan which takes as a parameter an EvalPlanRequest. Instead of updating pointers it returns a new plan and state. I removed as many redundant fields from the original EvalDiff struct as possible. * terraform: refactor EvalReduceDiff EvalReduceDiff is now reducePlan, a regular function (without a method) that returns a value. * terraform: refactor EvalDiffDestroy EvalDiffDestroy.Eval is now NodeAbstractResourceInstance.PlanDestroy which takes ctx, state and optional DeposedKey and returns a change. I've removed the state return value since it was only ever returning a nil state. * terraform: refactor EvalWriteDiff EvalWriteDiff.Eval is now NodeAbstractResourceInstance.WriteChange. * rename files to something more logical * terrafrom: refresh refactor, continued! I had originally made Refresh a stand-alone function since it was (obnoxiously) called from a graphNodeImportStateSub, but after some (greatly appreciated) prompting in the PR I instead made it a method on the NodeAbstractResourceInstance, in keeping with the other refactored eval nodes, and then built a NodeAbstractResourceInstance inside import. Since I did that I could also remove my duplicated 'writeState' code inside graphNodeImportStateSub and use n.writeResourceInstanceState, so double thanks! * unexport eval methods * re-refactor Plan, it made more sense on NodeAbstractResourceInstance. Sorry * Remove uninformative `Eval`s from EvalReadData, consolidate to a single file, and rename file to match function names. * manual rebase
2020-12-08 07:50:30 -06:00
change, destroyPlanDiags := n.planDestroy(ctx, state, "")
diags = diags.Append(destroyPlanDiags)
2020-10-28 10:46:07 -05:00
if diags.HasErrors() {
return diags
2020-09-29 13:31:20 -05:00
}
diags = diags.Append(n.writeChange(ctx, change, ""))
if diags.HasErrors() {
return diags
2020-09-29 13:31:20 -05:00
}
diags = diags.Append(n.checkPreventDestroy(change))
return diags
}
func (n *NodePlanDestroyableResourceInstance) dataResourceExecute(ctx EvalContext, op walkOperation) (diags tfdiags.Diagnostics) {
// We may not be able to read a prior data source from the state if the
// schema was upgraded and we are destroying before ever refreshing that
// data source. Regardless, a data source "destroy" is simply writing a
// null state, which we can do with a null prior state too.
change := &plans.ResourceInstanceChange{
Addr: n.ResourceInstanceAddr(),
PrevRunAddr: n.prevRunAddr(ctx),
Change: plans.Change{
Action: plans.Delete,
Before: cty.NullVal(cty.DynamicPseudoType),
After: cty.NullVal(cty.DynamicPseudoType),
},
ProviderAddr: n.ResolvedProvider.ProviderConfig,
}
return diags.Append(n.writeChange(ctx, change, ""))
}