dev: add deadlock detector support to roachprod-stress

This adds a new `--deadlock` flag to the `dev roachprod-stress` command,
which enables the deadlock detector in the stressed test(s).

Epic: none

Release note: None

Author: AlexTalks

pkg/cmd/dev/roachprod_stress.go

@@ -39,6 +39,7 @@ func makeRoachprodStressCmd(runE func(cmd *cobra.Command, args []string) error)
 	roachprodStressCmd.Flags().String(volumeFlag, "bzlhome", "the Docker volume to use as the container home directory (only used for cross builds)")
 	roachprodStressCmd.Flags().String(clusterFlag, "", "the name of the cluster (must be set)")
 	roachprodStressCmd.Flags().Bool(raceFlag, false, "run tests using race builds")
+	roachprodStressCmd.Flags().Bool(deadlockFlag, false, "run tests using the deadlock detector")
 	return roachprodStressCmd
 }
 
@@ -48,6 +49,7 @@ func (d *dev) roachprodStress(cmd *cobra.Command, commandLine []string) error {
 		cluster       = mustGetFlagString(cmd, clusterFlag)
 		volume        = mustGetFlagString(cmd, volumeFlag)
 		race          = mustGetFlagBool(cmd, raceFlag)
+		deadlock      = mustGetFlagBool(cmd, deadlockFlag)
 		stressCmdArgs = mustGetFlagString(cmd, stressArgsFlag)
 	)
 	if cluster == "" {
@@ -109,6 +111,9 @@ func (d *dev) roachprodStress(cmd *cobra.Command, commandLine []string) error {
 	if race {
 		crossArgs = append(crossArgs, "--config=race")
 	}
+	if deadlock {
+		crossArgs = append(crossArgs, "--define", "gotags=bazel,gss,deadlock")
+	}
 	err = d.crossBuild(ctx, crossArgs, targets, "crosslinux", volume, nil)
 	if err != nil {
 		return err