opentofu/command/jsonplan/resource.go
Martin Atkins b802237e03 plans: Track an optional extra "reason" for some planned actions
Previously we were repeating some logic in the UI layer in order to
recover relevant additional context about a change to report to a user.
In order to help keep things consistent, and to have a clearer path for
adding more such things in the future, here we capture this user-facing
idea of an "action reason" within the plan model, and then use that
directly in order to decide how to describe the change to the user.

For the moment the "tainted" situation is the only one that gets a special
message, matching what we had before, but we can expand on this in future
in order to give better feedback about the other replace situations too.

This also preemptively includes the "replacing by request" reason, which
is currently not reachable but will be used in the near future as part of
implementing the -replace=... plan command line option to allow forcing
a particular object to be replaced.

So far we don't have any special reasons for anything other than replacing,
which makes sense because replacing is the only one that is in a sense
a special case of another action (Update), but this could expand to
other kinds of reasons in the future, such as explaining which of the
few different reasons a data source read might be deferred until the
apply step.
2021-04-29 17:50:46 -07:00

75 lines
2.9 KiB
Go

package jsonplan
import (
"github.com/hashicorp/terraform/addrs"
)
// Resource is the representation of a resource in the json plan
type resource struct {
// Address is the absolute resource address
Address string `json:"address,omitempty"`
// Mode can be "managed" or "data"
Mode string `json:"mode,omitempty"`
Type string `json:"type,omitempty"`
Name string `json:"name,omitempty"`
// Index is omitted for a resource not using `count` or `for_each`
Index addrs.InstanceKey `json:"index,omitempty"`
// ProviderName allows the property "type" to be interpreted unambiguously
// in the unusual situation where a provider offers a resource type whose
// name does not start with its own name, such as the "googlebeta" provider
// offering "google_compute_instance".
ProviderName string `json:"provider_name,omitempty"`
// SchemaVersion indicates which version of the resource type schema the
// "values" property conforms to.
SchemaVersion uint64 `json:"schema_version"`
// AttributeValues is the JSON representation of the attribute values of the
// resource, whose structure depends on the resource type schema. Any
// unknown values are omitted or set to null, making them indistinguishable
// from absent values.
AttributeValues attributeValues `json:"values,omitempty"`
}
// resourceChange is a description of an individual change action that Terraform
// plans to use to move from the prior state to a new state matching the
// configuration.
type resourceChange struct {
// Address is the absolute resource address
Address string `json:"address,omitempty"`
// ModuleAddress is the module portion of the above address. Omitted if the
// instance is in the root module.
ModuleAddress string `json:"module_address,omitempty"`
// "managed" or "data"
Mode string `json:"mode,omitempty"`
Type string `json:"type,omitempty"`
Name string `json:"name,omitempty"`
Index addrs.InstanceKey `json:"index,omitempty"`
ProviderName string `json:"provider_name,omitempty"`
// "deposed", if set, indicates that this action applies to a "deposed"
// object of the given instance rather than to its "current" object. Omitted
// for changes to the current object.
Deposed string `json:"deposed,omitempty"`
// Change describes the change that will be made to this object
Change change `json:"change,omitempty"`
// ActionReason is a keyword representing some optional extra context
// for why the actions in Change.Actions were chosen.
//
// This extra detail is only for display purposes, to help a UI layer
// present some additional explanation to a human user. The possible
// values here might grow and change over time, so any consumer of this
// information should be resilient to encountering unrecognized values
// and treat them as an unspecified reason.
ActionReason string `json:"action_reason,omitempty"`
}