add a label to signal that a deploy is a chaos deploy

cli/app/rollback.go

@@ -178,6 +178,7 @@ recipes.
 		if err != nil {
 			logrus.Fatal(err)
 		}
+		config.SetChaosLabel(compose, stackName, internal.Chaos)
 
 		if !internal.Force {
 			if err := internal.NewVersionOverview(app, deployedVersion, chosenDowngrade, ""); err != nil {

cli/app/upgrade.go

@@ -189,6 +189,7 @@ recipes.
 		if err != nil {
 			logrus.Fatal(err)
 		}
+		config.SetChaosLabel(compose, stackName, internal.Chaos)
 
 		if err := internal.NewVersionOverview(app, deployedVersion, chosenUpgrade, releaseNotes); err != nil {
 			logrus.Fatal(err)

cli/internal/deploy.go

@@ -134,6 +134,7 @@ func DeployAction(c *cli.Context) error {
 	if err != nil {
 		logrus.Fatal(err)
 	}
+	config.SetChaosLabel(compose, app.StackName(), Chaos)
 
 	if err := DeployOverview(app, version, "continue with deployment?"); err != nil {
 		logrus.Fatal(err)

pkg/config/app.go

@@ -5,6 +5,7 @@ import (
 	"io/ioutil"
 	"os"
 	"path"
+	"strconv"
 	"strings"
 
 	"github.com/schollz/progressbar/v3"
@@ -447,3 +448,14 @@ func GetAppComposeConfig(recipe string, opts stack.Deploy, appEnv AppEnv) (*comp
 
 	return compose, nil
 }
+
+// add a label to signal that a deploy is a chaos deploy
+func SetChaosLabel(compose *composetypes.Config, stackName string, chaos bool) {
+	for _, service := range compose.Services {
+		if service.Name == "app" {
+			logrus.Debugf("set chaos label to %s", chaos)
+			labelKey := fmt.Sprintf("coop-cloud.%s.chaos", stackName)
+			service.Deploy.Labels[labelKey] = strconv.FormatBool(chaos)
+		}
+	}
+}