// HealthCheck returns the http readiness probe for the endpoint backing the
// given nodePort. If no probe is found it returns a health check with "" as
// the request path, callers are responsible for swapping this out for the
// appropriate default.
func (t *GCETranslator) HealthCheck(port int64) (*compute.HttpHealthCheck, error) {
sl, err := t.svcLister.List()
if err != nil {
return nil, err
}
// Find the label and target port of the one service with the given nodePort
for _, s := range sl.Items {
for _, p := range s.Spec.Ports {
if int32(port) == p.NodePort {
rp, err := t.getHTTPProbe(s, p.TargetPort)
if err != nil {
return nil, err
}
if rp == nil {
glog.Infof("No pod in service %v with node port %v has declared a matching readiness probe for health checks.", s.Name, port)
break
}
healthPath := rp.Handler.HTTPGet.Path
// GCE requires a leading "/" for health check urls.
if string(healthPath[0]) != "/" {
healthPath = fmt.Sprintf("/%v", healthPath)
}
host := rp.Handler.HTTPGet.Host
glog.Infof("Found custom health check for Service %v nodeport %v: %v%v", s.Name, port, host, healthPath)
return &compute.HttpHealthCheck{
Port: port,
RequestPath: healthPath,
Host: host,
Description: "kubernetes L7 health check from readiness probe.",
CheckIntervalSec: int64(rp.PeriodSeconds),
TimeoutSec: int64(rp.TimeoutSeconds),
HealthyThreshold: int64(rp.SuccessThreshold),
UnhealthyThreshold: int64(rp.FailureThreshold),
// TODO: include headers after updating compute godep.
}, nil
}
}
}
return utils.DefaultHealthCheckTemplate(port), nil
}
// HealthCheck returns the health check for the given port. If a health check
// isn't stored under the DefaultHealthCheck member, it constructs one.
func (h *FakeHealthCheckGetter) HealthCheck(port int64) (*compute.HttpHealthCheck, error) {
if h.DefaultHealthCheck == nil {
return utils.DefaultHealthCheckTemplate(port), nil
}
return h.DefaultHealthCheck, nil
}