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Readiness probe health check

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This commit is contained in:
Prashanth Balasubramanian 2016-05-28 22:02:39 -07:00
parent 32ac61e7e3
commit f84ca54831
12 changed files with 217 additions and 94 deletions
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18
controllers/gce/controller/cluster_manager.go
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@ -74,10 +74,21 @@ type ClusterManager struct {
backendPool backends.BackendPool
l7Pool loadbalancers.LoadBalancerPool
firewallPool firewalls.SingleFirewallPool
// TODO: Refactor so we simply init a health check pool.
// Currently health checks are tied to backends because each backend needs
// the link of the associated health, but both the backend pool and
// loadbalancer pool manage backends, because the lifetime of the default
// backend is tied to the last/first loadbalancer not the life of the
// nodeport service or Ingress.
healthCheckers []healthchecks.HealthChecker
}
func (c *ClusterManager) Init(tr *GCETranslator) {
c.instancePool.Init(tr)
for _, h := range c.healthCheckers {
h.Init(tr)
}
// TODO: Initialize other members as needed.
}
@ -221,7 +232,7 @@ func getGCEClient(config io.Reader) *gce.GCECloud {
// string passed to glbc via --gce-cluster-name.
// - defaultBackendNodePort: is the node port of glbc's default backend. This is
// the kubernetes Service that serves the 404 page if no urls match.
// - defaultHealthCheckPath: is the default path used for L7 health checks, eg: "/healthz"
// - defaultHealthCheckPath: is the default path used for L7 health checks, eg: "/healthz".
func NewClusterManager(
configFilePath string,
name string,
@ -258,11 +269,14 @@ func NewClusterManager(
// BackendPool creates GCE BackendServices and associated health checks.
healthChecker := healthchecks.NewHealthChecker(cloud, defaultHealthCheckPath, cluster.ClusterNamer)
// Loadbalancer pool manages the default backend and its health check.
defaultBackendHealthChecker := healthchecks.NewHealthChecker(cloud, "/healthz", cluster.ClusterNamer)
cluster.healthCheckers = []healthchecks.HealthChecker{healthChecker, defaultBackendHealthChecker}
// TODO: This needs to change to a consolidated management of the default backend.
cluster.backendPool = backends.NewBackendPool(
cloud, healthChecker, cluster.instancePool, cluster.ClusterNamer, []int64{defaultBackendNodePort}, true)
defaultBackendHealthChecker := healthchecks.NewHealthChecker(cloud, "/healthz", cluster.ClusterNamer)
defaultBackendPool := backends.NewBackendPool(
cloud, defaultBackendHealthChecker, cluster.instancePool, cluster.ClusterNamer, []int64{}, false)
cluster.defaultBackendNodePort = defaultBackendNodePort