feat(actions): parametrized actions to scale workloads (#15505) (#20097)

Signed-off-by: Ratul Basak <[email protected]>
Signed-off-by: Alexandre Gaudreault <[email protected]>
Co-authored-by: Alexandre Gaudreault <[email protected]>

Author: ratulbasak

USERS.md

@@ -95,6 +95,7 @@ Currently, the following organizations are **officially** using Argo CD:
 1. [Daydream](https://daydream.ing)
 1. [Deloitte](https://www.deloitte.com/)
 1. [Deutsche Telekom AG](https://telekom.com)
+1. [Deutsche Bank AG](https://www.deutsche-bank.de/)
 1. [Devopsi - Poland Software/DevOps Consulting](https://devopsi.pl/)
 1. [Devtron Labs](https://github.com/devtron-labs/devtron)
 1. [DigitalEd](https://www.digitaled.com)

assets/swagger.json

@@ -24,6 +24,7 @@ import (
 	"sigs.k8s.io/yaml"
 
 	"github.com/argoproj/argo-cd/v3/common"
+	applicationpkg "github.com/argoproj/argo-cd/v3/pkg/apiclient/application"
 	"github.com/argoproj/argo-cd/v3/pkg/apis/application/v1alpha1"
 	"github.com/argoproj/argo-cd/v3/util/argo/normalizers"
 	"github.com/argoproj/argo-cd/v3/util/cli"
@@ -563,6 +564,8 @@ argocd admin settings resource-overrides action list /tmp/deploy.yaml --argocd-c
 }
 
 func NewResourceActionRunCommand(cmdCtx commandContext) *cobra.Command {
+	var resourceActionParameters []string
+
 	command := &cobra.Command{
 		Use:     "run-action RESOURCE_YAML_PATH ACTION",
 		Aliases: []string{"action"},
@@ -579,6 +582,23 @@ argocd admin settings resource-overrides action /tmp/deploy.yaml restart --argoc
 			}
 			action := args[1]
 
+			// Parse resource action parameters
+			parsedParams := make([]*applicationpkg.ResourceActionParameters, 0)
+			if len(resourceActionParameters) > 0 {
+				for _, param := range resourceActionParameters {
+					parts := strings.SplitN(param, "=", 2)
+					if len(parts) != 2 {
+						log.Fatalf("Invalid parameter format: %s", param)
+					}
+					name := parts[0]
+					value := parts[1]
+					parsedParams = append(parsedParams, &applicationpkg.ResourceActionParameters{
+						Name:  &name,
+						Value: &value,
+					})
+				}
+			}
+
 			executeResourceOverrideCommand(ctx, cmdCtx, args, func(res unstructured.Unstructured, override v1alpha1.ResourceOverride, overrides map[string]v1alpha1.ResourceOverride) {
 				gvk := res.GroupVersionKind()
 				if override.Actions == "" {
@@ -590,7 +610,7 @@ argocd admin settings resource-overrides action /tmp/deploy.yaml restart --argoc
 				action, err := luaVM.GetResourceAction(&res, action)
 				errors.CheckError(err)
 
-				modifiedRes, err := luaVM.ExecuteResourceAction(&res, action.ActionLua)
+				modifiedRes, err := luaVM.ExecuteResourceAction(&res, action.ActionLua, parsedParams)
 				errors.CheckError(err)
 
 				for _, impactedResource := range modifiedRes {
@@ -615,5 +635,7 @@ argocd admin settings resource-overrides action /tmp/deploy.yaml restart --argoc
 			})
 		},
 	}
+
+	command.Flags().StringArrayVar(&resourceActionParameters, "param", []string{}, "Action parameters (e.g. --param key1=value1)")
 	return command
 }

cmd/argocd/commands/admin/settings.go

@@ -0,0 +1,22 @@
+# Scale Resources in ArgoCD UI
+
+This enables users to scale resources directly from the ArgoCD UI. Users will be able to increase or decrease the number of replicas (Pods) for Deployments and StatefulSets by using an input field. The feature aims to enhance user experience, especially for non-technical users, by eliminating the need to modify configuration files or use kubectl commands for scaling.
+
+
+## Example Usage
+1. User navigates to a Deployment or StatefulSet in any ArgoCD application.
+2. User clicks on the Actions dropdown and selects "Scale".
+  ![action button for scaling](../assets/scale_resources_1.png)
+3. A modal pops up showing an input field `Enter input parameters for action: scale` with the current number of Pods.
+4. User adjusts the number of Pods by entering a number.
+  ![input field for scaling](../assets/scale_resources_2.png)
+5. User presses OK, and the resource is scaled accordingly.
+  ![result for scaling](../assets/scale_resources_3.png)
+
+
+!!! note
+    This feature will only apply to `Deployments`, and `StatefulSets`.
+
+!!! note
+    If you use HPA (Horizontal Pod Autoscaling) or enabled ArgoCD auto-sync, changing the replica count in scale actions would be overwritten.
+    Ensure that invalid values (e.g., `non-numeric` characters, `negative` numbers, or values beyond the `max integer limit`) cannot be entered.