mirror of
https://github.com/k3s-io/kubernetes.git
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95 lines
2.3 KiB
Go
95 lines
2.3 KiB
Go
/*
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Copyright 2023 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package app
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import (
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"fmt"
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"net/http"
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"net/http/httptest"
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"os"
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"path/filepath"
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"testing"
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"time"
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)
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const fakeKubeconfig = `
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apiVersion: v1
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kind: Config
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clusters:
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- cluster:
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insecure-skip-tls-verify: true
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server: %s
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name: default
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contexts:
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- context:
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cluster: default
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user: default
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name: default
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current-context: default
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users:
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- name: default
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user:
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username: config
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`
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// TestHollowNode is a naive test that attempts to start hollow node and checks if it's not crashing.
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// Such test is sufficient to detect e.g. missing kubelet dependencies that are not added in
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// pkg/kubemark/hollow_kubelet.go.
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func TestHollowNode(t *testing.T) {
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// temp dir
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tmpDir, err := os.MkdirTemp("", "hollow-node")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(tmpDir)
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// https server
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server := httptest.NewTLSServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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w.WriteHeader(200)
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w.Write([]byte(`ok`))
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}))
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defer server.Close()
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kubeconfigPath := filepath.Join(tmpDir, "config.kubeconfig")
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if err := os.WriteFile(kubeconfigPath, []byte(fmt.Sprintf(fakeKubeconfig, server.URL)), os.FileMode(0600)); err != nil {
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t.Fatal(err)
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}
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for morph := range knownMorphs {
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morph := morph
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t.Run(morph, func(t *testing.T) {
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s := &hollowNodeConfig{
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KubeconfigPath: kubeconfigPath,
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Morph: morph,
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}
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errCh := make(chan error)
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go func() {
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data, err := os.ReadFile(kubeconfigPath)
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t.Logf("read %d, err=%v\n", len(data), err)
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errCh <- run(s)
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}()
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select {
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case err := <-errCh:
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t.Fatalf("Run finished unexpectedly with error: %v", err)
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case <-time.After(3 * time.Second):
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t.Logf("Morph %q hasn't crashed for 3s. Calling success.", morph)
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}
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})
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}
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}
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