refactor: replace some functions with general getLabel function

Resolves coop-cloud/organising#390 by adding the following label `coop-cloud.${STACK_NAME}.chaos=true` (according to the version label).
This is required for the auto updater coop-cloud/organising#236 (comment)

Co-authored-by: Moritz <moritz.m@local-it.org>
Reviewed-on: coop-cloud/abra#265

cli/app/rollback.go

@@ -178,10 +178,10 @@ recipes.
 		if err != nil {
 			logrus.Fatal(err)
 		}
-		config.SetUpdateLabel(compose, stackName, app.Env)
-		config.ExposeAllEnv(compose, app.Env)
-		config.SetChaosLabel(compose, stackName, internal.Chaos)
+		config.ExposeAllEnv(stackName, compose, app.Env)
 		config.SetRecipeLabel(compose, stackName, app.Recipe)
+		config.SetChaosLabel(compose, stackName, internal.Chaos)
+		config.SetUpdateLabel(compose, stackName, app.Env)
 
 		if !internal.Force {
 			if err := internal.NewVersionOverview(app, deployedVersion, chosenDowngrade, ""); err != nil {

cli/app/upgrade.go

@@ -189,10 +189,10 @@ recipes.
 		if err != nil {
 			logrus.Fatal(err)
 		}
-		config.SetUpdateLabel(compose, stackName, app.Env)
-		config.ExposeAllEnv(compose, app.Env)
-		config.SetChaosLabel(compose, stackName, internal.Chaos)
+		config.ExposeAllEnv(stackName, compose, app.Env)
 		config.SetRecipeLabel(compose, stackName, app.Recipe)
+		config.SetChaosLabel(compose, stackName, internal.Chaos)
+		config.SetUpdateLabel(compose, stackName, app.Env)
 
 		if err := internal.NewVersionOverview(app, deployedVersion, chosenUpgrade, releaseNotes); err != nil {
 			logrus.Fatal(err)

cli/internal/deploy.go

@@ -134,10 +134,10 @@ func DeployAction(c *cli.Context) error {
 	if err != nil {
 		logrus.Fatal(err)
 	}
-	config.SetUpdateLabel(compose, app.StackName(), app.Env)
-	config.ExposeAllEnv(compose, app.Env)
-	config.SetChaosLabel(compose, app.StackName(), Chaos)
+	config.ExposeAllEnv(app.StackName(), compose, app.Env)
 	config.SetRecipeLabel(compose, app.StackName(), app.Recipe)
+	config.SetChaosLabel(compose, app.StackName(), Chaos)
+	config.SetUpdateLabel(compose, app.StackName(), app.Env)
 
 	if err := DeployOverview(app, version, "continue with deployment?"); err != nil {
 		logrus.Fatal(err)

cli/updater/updater.go

@@ -140,7 +140,7 @@ func getEnv(cl *dockerclient.Client, stackName string) config.AppEnv {
 			}
 			k := splitString[0]
 			v := splitString[1]
-			//logrus.Debugf("Env Key: %s Value: %s", k, v)
+			logrus.Debugf("Env Key: %s Value: %s", k, v)
 			envMap[k] = v
 		}
 	}
@@ -255,7 +255,7 @@ func createDeployConfig(recipeName string, stackName string, env config.AppEnv)
 	if err != nil {
 		logrus.Fatal(err)
 	}
-	config.ExposeAllEnv(compose, env)
+	config.ExposeAllEnv(stackName, compose, env)
 	// after the upgrade the deployment won't be in chaos state anymore
 	config.SetChaosLabel(compose, stackName, false)
 	config.SetRecipeLabel(compose, stackName, recipeName)

pkg/config/app.go

@@ -449,7 +449,50 @@ func GetAppComposeConfig(recipe string, opts stack.Deploy, appEnv AppEnv) (*comp
 	return compose, nil
 }
 
-// add env ENABLE_AUTO_UPDATE as label to enable/disable the auto update process for this app
+// ExposeAllEnv exposes all env variables to the app container
+func ExposeAllEnv(stackName string, compose *composetypes.Config, appEnv AppEnv) {
+	for _, service := range compose.Services {
+		if service.Name == "app" {
+			logrus.Debugf("Add the following environment to the app service config of %s:", stackName)
+			for k, v := range appEnv {
+				_, exists := service.Environment[k]
+				if !exists {
+					value := v
+					service.Environment[k] = &value
+					logrus.Debugf("Add Key: %s Value: %s to %s", k, value, stackName)
+				}
+			}
+		}
+	}
+}
+
+// SetRecipeLabel adds the label 'coop-cloud.${STACK_NAME}.recipe=${RECIPE}' to the app container
+// to signal which recipe is connected to the deployed app
+func SetRecipeLabel(compose *composetypes.Config, stackName string, recipe string) {
+	for _, service := range compose.Services {
+		if service.Name == "app" {
+			logrus.Debugf("set recipe label 'coop-cloud.%s.recipe' to %s for %s", stackName, recipe, stackName)
+			labelKey := fmt.Sprintf("coop-cloud.%s.recipe", stackName)
+			service.Deploy.Labels[labelKey] = recipe
+		}
+	}
+}
+
+// SetChaosLabel adds the label 'coop-cloud.${STACK_NAME}.chaos=true/false' to the app container
+// to signal if the app is deployed in chaos mode
+func SetChaosLabel(compose *composetypes.Config, stackName string, chaos bool) {
+	for _, service := range compose.Services {
+		if service.Name == "app" {
+			logrus.Debugf("set label 'coop-cloud.%s.chaos' to %s for %s", stackName, chaos, stackName)
+			labelKey := fmt.Sprintf("coop-cloud.%s.chaos", stackName)
+			service.Deploy.Labels[labelKey] = strconv.FormatBool(chaos)
+		}
+	}
+}
+
+// SetUpdateLabel adds env ENABLE_AUTO_UPDATE as label to enable/disable the
+// auto update process for this app. The default if this variable is not set is to disable
+// the auto update process.
 func SetUpdateLabel(compose *composetypes.Config, stackName string, appEnv AppEnv) {
 	for _, service := range compose.Services {
 		if service.Name == "app" {
@@ -457,48 +500,9 @@ func SetUpdateLabel(compose *composetypes.Config, stackName string, appEnv AppEn
 			if !exists {
 				enable_auto_update = "false"
 			}
-			logrus.Debugf("set auto update label to %s", enable_auto_update)
+			logrus.Debugf("set label 'coop-cloud.%s.autoupdate' to %s for %s", stackName, enable_auto_update, stackName)
 			labelKey := fmt.Sprintf("coop-cloud.%s.autoupdate", stackName)
 			service.Deploy.Labels[labelKey] = enable_auto_update
 		}
 	}
 }
-
-// expose all env variables to the app container
-func ExposeAllEnv(compose *composetypes.Config, appEnv AppEnv) {
-	for _, service := range compose.Services {
-		if service.Name == "app" {
-			logrus.Debug("Add the following environment to the app service config:")
-			for k, v := range appEnv {
-				_, exists := service.Environment[k]
-				if !exists {
-					value := v
-					service.Environment[k] = &value
-					logrus.Debugf("Add Key: %s Value: %s", k, value)
-				}
-			}
-		}
-	}
-}
-
-// 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)
-		}
-	}
-}
-
-// add a label to signal that a deploy is connected with a recipe
-func SetRecipeLabel(compose *composetypes.Config, stackName string, recipe string) {
-	for _, service := range compose.Services {
-		if service.Name == "app" {
-			logrus.Debugf("set recipe label to %s", recipe)
-			labelKey := fmt.Sprintf("coop-cloud.%s.recipe", stackName)
-			service.Deploy.Labels[labelKey] = recipe
-		}
-	}
-}