Identify Rancher Desktop context as local cluster type

This way, Skaffold will automatically understand that it does not need to push images to remote registry when deploying to Rancher Desktop.

Signed-off-by: Marat Radchenko <marat@slonopotamus.org>

Author: slonopotamus

docs-v2/content/en/docs/design/global-config.md

@@ -18,7 +18,7 @@ The options are:
 | `insecure-registries` | list of strings | A list of image registries that may be accessed without TLS. |
 | `k3d-disable-load` | boolean | If true, do not use `k3d import image` to load images locally. |
 | `kind-disable-load` | boolean | If true, do not use `kind load` to load images locally. |
-| `local-cluster` | boolean | If true, do not try to push images after building. By default, contexts with names `docker-for-desktop`, `docker-desktop`, or `minikube` are treated as local. |
+| `local-cluster` | boolean | If true, do not try to push images after building. By default, contexts with names `docker-for-desktop`, `docker-desktop`, `minikube`, or `rancher-desktop` are treated as local. |
 | `update-check` | boolean | Check for a more recent version of Skaffold. |
 | `collect-metrics` | boolean | Collect anonymized usage data. |
 

docs-v2/content/en/docs/environment/local-cluster.md

@@ -22,14 +22,15 @@ kubectl config current-context
 
 Skaffold checks for the following context names:
 
-| Kubernetes context | Local cluster type | Notes |
-| ------------------ | ------------------ | ----- |
-| docker-desktop     | [`Docker Desktop`] | |
-| docker-for-desktop | [`Docker Desktop`] | This context name is deprecated |
-| minikube <sup>1</sup> | [`minikube`]    | See <sup>1</sup> | |
-| kind-(.*)          | [`kind`]           | This pattern is used by kind >= v0.6.0 |
-| (.*)@kind          | [`kind`]           | This pattern was used by kind < v0.6.0 |
-| k3d-(.*)           | [`k3d`]            | This pattern is used by k3d >= v3.0.0 |
+| Kubernetes context    | Local cluster type  | Notes                                  |
+|-----------------------|---------------------|----------------------------------------|
+| docker-desktop        | [`Docker Desktop`]  |                                        |
+| docker-for-desktop    | [`Docker Desktop`]  | This context name is deprecated        |
+| minikube <sup>1</sup> | [`minikube`]        | See <sup>1</sup>                       |
+| kind-(.*)             | [`kind`]            | This pattern is used by kind >= v0.6.0 |
+| (.*)@kind             | [`kind`]            | This pattern was used by kind < v0.6.0 |
+| k3d-(.*)              | [`k3d`]             | This pattern is used by k3d >= v3.0.0  |
+| rancher-desktop       | [`Rancher Desktop`] |                                        |
 
 For any other name, Skaffold assumes that the cluster is remote and that images
 have to be pushed.
@@ -43,6 +44,7 @@ context name.
  [`Docker Desktop`]: https://www.docker.com/products/docker-desktop
  [`kind`]: https://github.com/kubernetes-sigs/kind
  [`k3d`]: https://github.com/rancher/k3d
+ [`Rancher Desktop`]: https://rancherdesktop.io
 
 ### Manual override
 

pkg/skaffold/config/util.go

@@ -246,6 +246,7 @@ func GetCluster(ctx context.Context, opts GetClusterOpts) (Cluster, error) {
 	case kubeContext == constants.DefaultMinikubeContext ||
 		kubeContext == constants.DefaultDockerForDesktopContext ||
 		kubeContext == constants.DefaultDockerDesktopContext ||
+		kubeContext == constants.DefaultRancherDesktopContext ||
 		isKindCluster || isK3dCluster:
 		local = true
 

pkg/skaffold/config/util_test.go

@@ -351,6 +351,11 @@ func TestGetCluster(t *testing.T) {
 			cfg:         &ContextConfig{Kubecontext: "docker-for-desktop"},
 			expected:    Cluster{Local: true, LoadImages: false, PushImages: false},
 		},
+		{
+			description: "rancher-desktop",
+			cfg:         &ContextConfig{Kubecontext: "rancher-desktop"},
+			expected:    Cluster{Local: true, LoadImages: false, PushImages: false},
+		},
 		{
 			description: "minikube",
 			cfg:         &ContextConfig{Kubecontext: "minikube"},
@@ -436,6 +441,7 @@ func TestIsKindCluster(t *testing.T) {
 		{context: "kind@kind", expectedIsKind: true},
 		{context: "other@kind", expectedIsKind: true},
 		{context: "docker-for-desktop", expectedIsKind: false},
+		{context: "rancher-desktop", expectedIsKind: false},
 		{context: "not-kind", expectedIsKind: false},
 	}
 	for _, test := range tests {
@@ -526,6 +532,7 @@ func TestIsK3dCluster(t *testing.T) {
 		{context: "k3d-other", expectedIsK3d: true},
 		{context: "kind-kind", expectedIsK3d: false},
 		{context: "docker-for-desktop", expectedIsK3d: false},
+		{context: "rancher-desktop", expectedIsK3d: false},
 		{context: "not-k3d", expectedIsK3d: false},
 	}
 	for _, test := range tests {

pkg/skaffold/constants/constants.go

@@ -43,6 +43,7 @@ const (
 	DefaultMinikubeContext         = "minikube"
 	DefaultDockerForDesktopContext = "docker-for-desktop"
 	DefaultDockerDesktopContext    = "docker-desktop"
+	DefaultRancherDesktopContext   = "rancher-desktop"
 	GCSBucketSuffix                = "_cloudbuild"
 
 	HelmOverridesFilename = "skaffold-overrides.yaml"