terraform/terraform/eval_check_prevent_destroy.go

33 lines
974 B
Go

package terraform
import (
"fmt"
"github.com/hashicorp/terraform/config"
)
// EvalPreventDestroy is an EvalNode implementation that returns an
// error if a resource has PreventDestroy configured and the diff
// would destroy the resource.
type EvalCheckPreventDestroy struct {
Resource *config.Resource
Diff **InstanceDiff
}
func (n *EvalCheckPreventDestroy) Eval(ctx EvalContext) (interface{}, error) {
if n.Diff == nil || *n.Diff == nil || n.Resource == nil {
return nil, nil
}
diff := *n.Diff
preventDestroy := n.Resource.Lifecycle.PreventDestroy
if diff.Destroy && preventDestroy {
return nil, fmt.Errorf(preventDestroyErrStr, n.Resource.Id())
}
return nil, nil
}
const preventDestroyErrStr = `%s: the plan would destroy this resource, but it currently has lifecycle.prevent_destroy set to true. To avoid this error and continue with the plan, either disable lifecycle.prevent_destroy or adjust the scope of the plan using the -target flag.`