e2e: support kind clusters (#1103)

Signed-off-by: pigletfly <wangbing.adam@gmail.com>

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ on:
   pull_request:
 
 env:
-  GO_VERSION: "1.18"
+  GO_VERSION: "1.19"
 
 jobs:
   lint:

Makefile.e2e

@@ -1,7 +1,17 @@
+
+# skaffold checks for kubectl context
+# For minikube, docker-for-desktop and docker-desktop the context matches above names
+# If one wants to use kind, kind gives context names based on the cluster-name
+# But as of now they match the following syntax: kind-*
+# The first check verifies that this is a kind kubernetes context
+# Second check verifies the other ones
 .PHONY: skaffold.validate
 skaffold.validate: kubectl_context := $(shell kubectl config current-context)
 skaffold.validate:
-	@if [[ ! "minikube,docker-for-desktop,docker-desktop" =~ .*"$(kubectl_context)".* ]]; then \
+
+	@if [[ "$(kubectl_context)" =~ .*"kind".* ]]; then \
+		true; \
+	elif [[ ! "minikube,docker-for-desktop,docker-desktop" =~ .*"$(kubectl_context)".* ]]; then \
 		echo current-context is [$(kubectl_context)]. Must be one of [minikube,docker-for-desktop,docker-desktop]; \
 		false; \
 	fi

go.mod

@@ -1,6 +1,6 @@
 module github.com/virtual-kubelet/virtual-kubelet
 
-go 1.17
+go 1.19
 
 require (
 	contrib.go.opencensus.io/exporter/jaeger v0.2.1

node/api/metrics_test.go

@@ -16,7 +16,7 @@ package api_test
 
 import (
 	"context"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"testing"
@@ -125,7 +125,7 @@ func TestHandlePodMetricsResource(t *testing.T) {
 			assert.Equal(t, tc.expectedStatusCode, rr.Code)
 
 			if tc.expectedError != nil {
-				bodyBytes, err := ioutil.ReadAll(rr.Body)
+				bodyBytes, err := io.ReadAll(rr.Body)
 				require.NoError(t, err)
 				assert.Contains(t, string(bodyBytes), tc.expectedError.Error())
 			} else if tc.expectedStatusCode == http.StatusOK {