mirror of
https://github.com/containerd/containerd.git
synced 2026-06-24 08:48:48 +00:00
103 lines
3.0 KiB
Go
103 lines
3.0 KiB
Go
/*
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Copyright The containerd 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 integration
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import (
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"fmt"
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"os"
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"path/filepath"
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"syscall"
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"testing"
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"time"
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"github.com/containerd/containerd/v2/integration/images"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
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)
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func TestIssue10244LoopbackV2(t *testing.T) {
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testCases := []struct {
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name string
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value bool
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}{
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{name: "use_internal_loopback=false", value: false},
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{name: "use_internal_loopback=true", value: true},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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assert.True(t, checkLoopbackResult(t, tc.value))
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})
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}
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}
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// checkLoopbackResult validates whether the loopback interface status within a container is UP
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func checkLoopbackResult(t *testing.T, useInternalLoopback bool) bool {
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t.Logf("Create containerd config with 'use_internal_loopback' set to '%t'", useInternalLoopback)
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workDir := t.TempDir()
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configPath := filepath.Join(workDir, "config.toml")
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ctrdConfig := fmt.Sprintf(`
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version = 3
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[plugins]
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[plugins.'io.containerd.cri.v1.runtime']
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[plugins.'io.containerd.cri.v1.runtime'.cni]
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use_internal_loopback = %t`,
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useInternalLoopback)
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err := os.WriteFile(configPath, []byte(ctrdConfig), 0600)
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require.NoError(t, err)
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t.Logf("Start containerd")
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currentProc := newCtrdProc(t, "containerd", workDir, nil)
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require.NoError(t, currentProc.isReady())
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t.Cleanup(func() {
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t.Log("Cleanup all the pods")
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cleanupPods(t, currentProc.criRuntimeService(t))
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t.Log("Stop containerd process")
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require.NoError(t, currentProc.kill(syscall.SIGTERM))
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require.NoError(t, currentProc.wait(5*time.Minute))
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})
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var (
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testImage = images.Get(images.BusyBox)
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containerName = "test-container-loopback-v2"
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)
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pullImagesByCRI(t, currentProc.criImageService(t), testImage)
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t.Log("Create a pod with a container that checks the loopback status")
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podCtx := newPodTCtx(t, currentProc.criRuntimeService(t), "container-exec-lo-test", "sandbox")
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cnID := podCtx.createContainer(
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containerName,
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testImage,
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runtime.ContainerState_CONTAINER_RUNNING,
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WithCommand("sleep", "1d"),
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WithVolumeMount("/usr/local/bin/loopback-v2", "/loopback-v2"),
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)
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t.Logf("Check loopback status - should be UP (not DOWN) when 'use_internal_loopback' is '%t'", useInternalLoopback)
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stdout, _, err := podCtx.rSvc.ExecSync(cnID, []string{"/loopback-v2"}, 5*time.Second)
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require.NoError(t, err, "")
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t.Logf("%s", stdout)
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return assert.Contains(t, string(stdout), "UP")
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}
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