metropolis/core/metrics: expose containerd metrics endpoint
This adds containerd as another metrics endpoint. It is only available
on nodes with the KubernetesWorker role.
Change-Id: I5f6269165a81d9a4c4cff48d3ed6b6a55d7f4f46
Reviewed-on: https://review.monogon.dev/c/monogon/+/2861
Tested-by: Jenkins CI
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
diff --git a/metropolis/test/e2e/main_test.go b/metropolis/test/e2e/main_test.go
index 8617da4..19df697 100644
--- a/metropolis/test/e2e/main_test.go
+++ b/metropolis/test/e2e/main_test.go
@@ -436,6 +436,44 @@
}
return nil
})
+ util.TestEventual(t, "containerd metrics retrieved", ctx, smallTestTimeout, func(ctx context.Context) error {
+ pool := x509.NewCertPool()
+ pool.AddCert(cluster.CACertificate)
+ cl := http.Client{
+ Transport: &http.Transport{
+ TLSClientConfig: &tls.Config{
+ Certificates: []tls.Certificate{cluster.Owner},
+ RootCAs: pool,
+ },
+ DialContext: func(ctx context.Context, _, addr string) (net.Conn, error) {
+ return cluster.DialNode(ctx, addr)
+ },
+ },
+ }
+ u := url.URL{
+ Scheme: "https",
+ Host: net.JoinHostPort(cluster.NodeIDs[1], common.MetricsPort.PortString()),
+ Path: "/metrics/containerd",
+ }
+ res, err := cl.Get(u.String())
+ if err != nil {
+ return err
+ }
+ defer res.Body.Close()
+ if res.StatusCode != 200 {
+ return fmt.Errorf("status code %d", res.StatusCode)
+ }
+
+ body, err := io.ReadAll(res.Body)
+ if err != nil {
+ return err
+ }
+ needle := "containerd_build_info_total"
+ if !strings.Contains(string(body), needle) {
+ return util.Permanent(fmt.Errorf("could not find %q in returned response", needle))
+ }
+ return nil
+ })
if os.Getenv("HAVE_NESTED_KVM") != "" {
util.TestEventual(t, "Pod for KVM/QEMU smoke test", ctx, smallTestTimeout, func(ctx context.Context) error {
runcRuntimeClass := "runc"