resource stack: support destroying stacks

With this implementation someone could add Destroy to a stack, then
deploy and the stack would be destroyed in all accounts.

resource/stack.go

@@ -23,6 +23,8 @@ type Stack struct {
 
 	CloudformationParameters   []string `yaml:"CloudformationParameters,omitempty"`
 	CloudformationCapabilities []string `yaml:"CloudformationCapabilities,omitempty"`
+
+	Destroy bool `yaml:"Destroy,omitempty"`
 }
 
 func (s Stack) NewForRegion(region string) Stack {

resourceoperation/cdk.go

@@ -73,6 +73,10 @@ func (co *cdkOperation) Call(ctx context.Context) error {
 		}
 	} else if co.Operation == Deploy {
 		cdkArgs = []string{"deploy", "--require-approval", "never"}
+
+		if co.Stack.Destroy {
+			cdkArgs = []string{"destroy", "--require-approval", "never"}
+		}
 	}
 
 	cdkArgs = append(cdkArgs, cdkDefaultArgs(*co.Account, co.Stack)...)

resourceoperation/cloudformation.go

@@ -83,6 +83,14 @@ func (co *cloudformationOp) Call(ctx context.Context) error {
 		return nil
 	}
 
+	if co.Stack.Destroy {
+		err := co.DeleteStack(ctx)
+		if err != nil {
+			return oops.Wrapf(err, "DeleteStack")
+		}
+		return nil
+	}
+
 	_, err = co.executeChangeSet(ctx, cs.ChangeSetId)
 	if err != nil {
 		return oops.Wrapf(err, "executing change set")
@@ -202,6 +210,16 @@ func (co *cloudformationOp) executeChangeSet(ctx context.Context, changeSetID *s
 	}
 }
 
+func (co *cloudformationOp) DeleteStack(ctx context.Context) error {
+	_, err := co.CloudformationClient.DeleteStackWithContext(ctx, &cloudformation.DeleteStackInput{
+		StackName: co.Stack.CloudformationStackName(),
+	})
+	if err != nil {
+		return oops.Wrapf(err, "DeleteStackWithContext stack: %s", *co.Stack.CloudformationStackName())
+	}
+	return nil
+}
+
 func (co *cloudformationOp) ToString() string {
 	return ""
 }

resourceoperation/scp.go

@@ -140,6 +140,10 @@ func (so *scpOperation) Call(ctx context.Context) error {
 		args = []string{
 			"apply", "-auto-approve",
 		}
+
+		if so.Stack.Destroy {
+			args = append(args, "-destroy")
+		}
 	}
 
 	workingPath := so.tmpPath()

resourceoperation/terraform.go

@@ -88,6 +88,10 @@ func (to *tfOperation) Call(ctx context.Context) error {
 		}
 	}
 
+	if to.Stack.Destroy {
+		args = append(args, "-destroy")
+	}
+
 	workingPath := terraform.TmpPath(*to.Account, to.Stack.Path)
 	cmd := exec.Command(localstack.TfCmd(), args...)
 	cmd.Dir = workingPath