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Integration test for k8s events generated during install (#2805) 

Integration test for k8s events generated during install

Fixes #2713

I did make sure a scenario like the one described in #2964 is caught.

Signed-off-by: Alejandro Pedraza <alejandro@buoyant.io>
This commit is contained in:
Alejandro Pedraza 2019-05-10 09:09:54 -05:00 committed by GitHub
parent 87e69bf885
commit f4ab9d6f9e
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 52 additions and 3 deletions
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55
test/install_test.go
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@ -1,6 +1,7 @@
package test
import (
"encoding/json"
"fmt"
"os"
"regexp"
@ -11,6 +12,7 @@ import (
"github.com/linkerd/linkerd2/pkg/k8s"
"github.com/linkerd/linkerd2/testutil"
corev1 "k8s.io/api/core/v1"
)
type deploySpec struct {
@ -75,6 +77,12 @@ var (
`.* linkerd-prometheus-.*-.* linkerd-proxy ERR! \[ +\d+.\d+s\] proxy={server=out listen=127\.0\.0\.1:4140 remote=.*} linkerd2_proxy::proxy::http::router service error: an error occurred trying to connect: .*`,
}, "|"))
knownEventWarningsRegex = regexp.MustCompile(strings.Join([]string{
`MountVolume.SetUp failed for volume .* : couldn't propagate object cache: timed out waiting for the condition`,
`Readiness probe failed: HTTP probe failed with statuscode: 50(2|3)`,
`(Liveness|Readiness) probe failed: Get http://.*: dial tcp .*: connect: connection refused`,
}, "|"))
injectionCases = []struct {
ns string
annotations map[string]string
@ -473,7 +481,7 @@ func TestLogs(t *testing.T) {
}
defer outputStream.Stop()
// Ignore the error returned, since ReadUntil will return an error if it
// does not return 10,000 after 1 second. We don't need 10,000 log lines.
// does not return 10,000 after 2 seconds. We don't need 10,000 log lines.
outputLines, _ := outputStream.ReadUntil(10000, 2*time.Second)
if len(outputLines) == 0 {
t.Errorf("No logs found for %s", name)
@ -483,10 +491,10 @@ func TestLogs(t *testing.T) {
if errRegex.MatchString(line) {
if knownErrorsRegex.MatchString(line) {
// report all known logging errors in the output
t.Skipf("Found known error in %s log: %s", name, line)
t.Logf("Found known error in %s log: %s", name, line)
} else {
if proxy {
t.Skipf("Found unexpected proxy error in %s log: %s", name, line)
t.Logf("Found unexpected proxy error in %s log: %s", name, line)
} else {
t.Errorf("Found unexpected controller error in %s log: %s", name, line)
}
@ -498,6 +506,47 @@ func TestLogs(t *testing.T) {
}
}
func TestEvents(t *testing.T) {
out, err := TestHelper.Kubectl("",
"--namespace", TestHelper.GetLinkerdNamespace(),
"get", "events", "-ojson",
)
if err != nil {
t.Errorf("kubectl get events command failed with %s\n%s", err, out)
}
var list corev1.List
if err := json.Unmarshal([]byte(out), &list); err != nil {
t.Errorf("Error unmarshaling list from `kubectl get events`: %s", err)
}
if len(list.Items) == 0 {
t.Error("No events found")
}
var unknownEvents []string
for _, i := range list.Items {
var e corev1.Event
if err := json.Unmarshal(i.Raw, &e); err != nil {
t.Errorf("Error unmarshaling list event from `kubectl get events`: %s", err)
}
if e.Type == corev1.EventTypeNormal {
continue
}
evtStr := fmt.Sprintf("%s %s %s", e.Reason, e.InvolvedObject.Name, e.Message)
if knownEventWarningsRegex.MatchString(e.Message) {
t.Logf("Found known warning event: %s", evtStr)
} else {
unknownEvents = append(unknownEvents, evtStr)
}
}
if len(unknownEvents) > 0 {
t.Errorf("Found unexpected warning events:\n%s", strings.Join(unknownEvents, "\n"))
}
}
func TestRestarts(t *testing.T) {
for deploy, spec := range linkerdDeployReplicas {
if err := TestHelper.CheckPods(TestHelper.GetLinkerdNamespace(), deploy, spec.replicas); err != nil {