roachtest: add reset to cluster interface

Previously, the reset command was only available via the roachprod CLI. This
change adds the reset command to the cluster interface.

Epic: None
Release note: None

Author: herkolategan

pkg/cmd/roachtest/cluster.go

@@ -1852,6 +1852,12 @@ func (c *clusterImpl) doDestroy(ctx context.Context, l *logger.Logger) <-chan st
 	return ch
 }
 
+func (c *clusterImpl) Reset(
+	ctx context.Context, l *logger.Logger, nodes option.NodeListOption,
+) error {
+	return roachprod.Reset(l, c.MakeNodes(nodes))
+}
+
 func (c *clusterImpl) addLabels(labels map[string]string) error {
 	// N.B. we must sanitize the values; e.g., some test names can exceed the maximum length (63 chars in GCE).
 	// N.B. we don't sanitize the keys; unlike values, they are typically _not_ (dynamically) generated.

pkg/cmd/roachtest/cluster/cluster_interface.go

@@ -160,6 +160,10 @@ type Cluster interface {
 	) error
 	PopulateEtcHosts(ctx context.Context, l *logger.Logger) error
 
+	// VM management
+
+	Reset(ctx context.Context, l *logger.Logger, nodes option.NodeListOption) error
+
 	// Methods whose inclusion on this interface is purely historical.
 	// These should be removed over time.