opentofu/builtin/providers/aws/resource_provider.go

package aws

import (
	"github.com/hashicorp/terraform/terraform"
)

type ResourceProvider struct {
}

func (p *ResourceProvider) Validate(c *terraform.ResourceConfig) ([]string, []error) {
	errs := c.CheckSet([]string{
		"access_key",
		"secret_key",
	})

	return nil, errs
}

func (p *ResourceProvider) Configure(*terraform.ResourceConfig) error {
	return nil
}

func (p *ResourceProvider) Diff(
	s *terraform.ResourceState,
	c *terraform.ResourceConfig) (*terraform.ResourceDiff, error) {
	diffMap.CreateAttrs([]string{
		"ami",
		"availability_zone",
		"instance_type",
		"region",
	})
	diffMap.CreateComputedAttrs([]string{
		"id",
		"public_dns",
		"public_ip",
		"private_dns",
		"private_ip",
	})

	return &terraform.ResourceDiff{
		Attributes: map[string]*terraform.ResourceAttrDiff{
			"id": &terraform.ResourceAttrDiff{
				Old:         "",
				NewComputed: true,
				RequiresNew: true,
			},
			"created": &terraform.ResourceAttrDiff{
				Old: "false",
				New: "true",
			},
		},
	}, nil
}

func (p *ResourceProvider) Resources() []terraform.ResourceType {
	return []terraform.ResourceType{
		terraform.ResourceType{
			Name: "aws_instance",
		},
	}
}