Add app integeration test #23
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,83 @@ | ||
| //go:build integration_tests | ||
| // +build integration_tests | ||
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| package integration | ||
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| import ( | ||
| "bytes" | ||
| "context" | ||
| "io" | ||
| "testing" | ||
| "time" | ||
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| "github.com/kong/kubernetes-testing-framework/pkg/clusters" | ||
| "github.com/stretchr/testify/require" | ||
| corev1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| ) | ||
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| const ( | ||
| appGoCounterKustomize = "https://github.com/bpfman/bpfman/examples/config/default/go-app-counter/?timeout=120&ref=main" | ||
| appGoCounterUserspaceNs = "go-application-counter" | ||
| appGoCounterUserspaceDsName = "go-application-counter-ds" | ||
| ) | ||
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| func TestApplicationGoCounter(t *testing.T) { | ||
| t.Log("deploying target required for uprobe counter program if its not already deployed") | ||
| require.NoError(t, clusters.KustomizeDeployForCluster(ctx, env.Cluster(), targetKustomize)) | ||
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| t.Log("waiting for go target userspace daemon to be available") | ||
| require.Eventually(t, func() bool { | ||
| daemon, err := env.Cluster().Client().AppsV1().DaemonSets(targetUserspaceNs).Get(ctx, targetUserspaceDsName, metav1.GetOptions{}) | ||
| require.NoError(t, err) | ||
| return daemon.Status.DesiredNumberScheduled == daemon.Status.NumberAvailable | ||
| }, | ||
| // Wait 5 minutes since cosign is slow, https://github.com/bpfman/bpfman/issues/1043 | ||
| 5*time.Minute, 10*time.Second) | ||
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| t.Log("deploying application counter program") | ||
| require.NoError(t, clusters.KustomizeDeployForCluster(ctx, env.Cluster(), appGoCounterKustomize)) | ||
| addCleanup(func(context.Context) error { | ||
| cleanupLog("cleaning up application counter program") | ||
| return clusters.KustomizeDeleteForCluster(ctx, env.Cluster(), appGoCounterKustomize) | ||
| }) | ||
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| t.Log("waiting for go application counter userspace daemon to be available") | ||
| require.Eventually(t, func() bool { | ||
| daemon, err := env.Cluster().Client().AppsV1().DaemonSets(appGoCounterUserspaceNs).Get(ctx, appGoCounterUserspaceDsName, metav1.GetOptions{}) | ||
| require.NoError(t, err) | ||
| return daemon.Status.DesiredNumberScheduled == daemon.Status.NumberAvailable | ||
| }, | ||
| // Wait 5 minutes since cosign is slow, https://github.com/bpfman/bpfman/issues/1043 | ||
| 5*time.Minute, 10*time.Second) | ||
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| pods, err := env.Cluster().Client().CoreV1().Pods(appGoCounterUserspaceNs).List(ctx, metav1.ListOptions{LabelSelector: "name=go-application-counter"}) | ||
| require.NoError(t, err) | ||
| goAppCounterPod := pods.Items[0] | ||
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| checkFunctions := []func(t *testing.T, output *bytes.Buffer) bool{ | ||
| doAppKprobeCheck, | ||
| doAppTcCheck, | ||
| doAppTracepointCheck, | ||
| doAppUprobeCheck, | ||
| doAppXdpCheck, | ||
| } | ||
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| for idx, f := range checkFunctions { | ||
| req := env.Cluster().Client().CoreV1().Pods(appGoCounterUserspaceNs).GetLogs(goAppCounterPod.Name, &corev1.PodLogOptions{}) | ||
| require.Eventually(t, func() bool { | ||
| logs, err := req.Stream(ctx) | ||
| require.NoError(t, err) | ||
| defer logs.Close() | ||
| output := new(bytes.Buffer) | ||
| _, err = io.Copy(output, logs) | ||
| require.NoError(t, err) | ||
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| if f(t, output) { | ||
| return true | ||
| } | ||
| t.Logf("check %d failed retrying, output %s", idx, output.String()) | ||
| return false | ||
| }, 30*time.Second, time.Second) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| //go:build integration_tests | ||
| // +build integration_tests | ||
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| package integration | ||
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| import ( | ||
| "bytes" | ||
| "regexp" | ||
| "strconv" | ||
| "strings" | ||
| "testing" | ||
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| "github.com/stretchr/testify/require" | ||
| ) | ||
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| func doKprobeCheck(t *testing.T, output *bytes.Buffer) bool { | ||
| str := `Kprobe count: ([0-9]+)` | ||
| if ok, count := doProbeCommonCheck(t, output, str); ok { | ||
| t.Logf("counted %d kprobe executions so far, BPF program is functioning", count) | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
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| func doAppKprobeCheck(t *testing.T, output *bytes.Buffer) bool { | ||
| str := `Kprobe: count: ([0-9]+)` | ||
| if ok, count := doProbeCommonCheck(t, output, str); ok { | ||
| t.Logf("counted %d kprobe executions so far, BPF program is functioning", count) | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
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| func doTcCheck(t *testing.T, output *bytes.Buffer) bool { | ||
| if strings.Contains(output.String(), "packets received") && strings.Contains(output.String(), "bytes received") { | ||
| t.Log("TC BPF program is functioning") | ||
| return true | ||
|
There was a problem hiding this comment. Add a "BPF program is functioning" log for the TC and XDP checks as is done for the other types. |
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| } | ||
| return false | ||
| } | ||
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| func doAppTcCheck(t *testing.T, output *bytes.Buffer) bool { | ||
| if strings.Contains(output.String(), "TC:") && strings.Contains(output.String(), "packets received") && strings.Contains(output.String(), "bytes received") { | ||
| t.Log("TC BPF program is functioning") | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
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| func doTracepointCheck(t *testing.T, output *bytes.Buffer) bool { | ||
| str := `SIGUSR1 signal count: ([0-9]+)` | ||
| if ok, count := doProbeCommonCheck(t, output, str); ok { | ||
| t.Logf("counted %d SIGUSR1 signals so far, BPF program is functioning", count) | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
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| func doAppTracepointCheck(t *testing.T, output *bytes.Buffer) bool { | ||
| str := `Tracepoint: SIGUSR1 signal count: ([0-9]+)` | ||
| if ok, count := doProbeCommonCheck(t, output, str); ok { | ||
| t.Logf("counted %d SIGUSR1 signals so far, BPF program is functioning", count) | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
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| func doUprobeCheck(t *testing.T, output *bytes.Buffer) bool { | ||
| str := `Uprobe count: ([0-9]+)` | ||
| if ok, count := doProbeCommonCheck(t, output, str); ok { | ||
| t.Logf("counted %d uprobe executions so far, BPF program is functioning", count) | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
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| func doAppUprobeCheck(t *testing.T, output *bytes.Buffer) bool { | ||
| str := `Uprobe: count: ([0-9]+)` | ||
| if ok, count := doProbeCommonCheck(t, output, str); ok { | ||
| t.Logf("counted %d uprobe executions so far, BPF program is functioning", count) | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
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| func doXdpCheck(t *testing.T, output *bytes.Buffer) bool { | ||
| if strings.Contains(output.String(), "packets received") && strings.Contains(output.String(), "bytes received") { | ||
| t.Log("XDP BPF program is functioning") | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
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| func doAppXdpCheck(t *testing.T, output *bytes.Buffer) bool { | ||
| if strings.Contains(output.String(), "XDP:") && strings.Contains(output.String(), "packets received") && strings.Contains(output.String(), "bytes received") { | ||
| t.Log("XDP BPF program is functioning") | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
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| func doProbeCommonCheck(t *testing.T, output *bytes.Buffer, str string) (bool, int) { | ||
| want := regexp.MustCompile(str) | ||
| matches := want.FindAllStringSubmatch(output.String(), -1) | ||
| if len(matches) >= 1 && len(matches[0]) >= 2 { | ||
| count, err := strconv.Atoi(matches[0][1]) | ||
| require.NoError(t, err) | ||
| if count > 0 { | ||
| return true, count | ||
| } | ||
| } | ||
| return false, 0 | ||
| } | ||
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This is just an observation, but I changed the logs for the application example so they had a similar format and it was more clear to me that all the code was running. As a result we need separate checks here.