Affected by 
Documentation
¶
Index ¶
- Constants
- Variables
- type ContainerdClient
- type HealthChecker
- type KubeletHealthChecker
- func (k *KubeletHealthChecker) Check(ctx context.Context, node *corev1.Node) error
- func (k *KubeletHealthChecker) HasLastInternalIP() bool
- func (*KubeletHealthChecker) Name() string
- func (k *KubeletHealthChecker) RevertToggleKubeletState()
- func (k *KubeletHealthChecker) SetKubeletHealthEndpoint(kubeletHealthEndpoint string)
- func (k *KubeletHealthChecker) ToggleKubeletState() bool
- type Reconciler
Constants ¶
const (
// ControllerName is the name of this controller.
ControllerName = "health-check"
)
Variables ¶
var DefaultKubeletHealthEndpoint = "http://127.0.0.1:10248/healthz"
DefaultKubeletHealthEndpoint is the health endpoint of the kubelet.
Functions ¶
This section is empty.
Types ¶
type ContainerdClient ¶
type ContainerdClient interface {
Version(context.Context) (containerd.Version, error)
}
ContainerdClient defines the containerd client Interface exported for testing.
type HealthChecker ¶
type HealthChecker interface {
// Name returns the name of the healthchecker.
Name() string
// Check executes the health check.
Check(ctx context.Context, node *corev1.Node) error
}
HealthChecker can be implemented to run a health check against a node component and fix it if possible.
func NewContainerdHealthChecker ¶
func NewContainerdHealthChecker(client client.Client, containerdClient ContainerdClient, clock clock.Clock, dbus dbus.DBus, recorder record.EventRecorder) HealthChecker
NewContainerdHealthChecker creates a new instance of a containerd health check.
type KubeletHealthChecker ¶
type KubeletHealthChecker struct {
// Clock exported for testing.
Clock clock.Clock
// KubeletReadinessToggles contains an entry for every toggle between NotReady->Ready state.
KubeletReadinessToggles []time.Time
// NodeReady indicates if the node is ready. Exported for testing.
NodeReady bool
// contains filtered or unexported fields
}
KubeletHealthChecker configures the kubelet healthcheck.
func NewKubeletHealthChecker ¶
func NewKubeletHealthChecker(client client.Client, clock clock.Clock, dbus dbus.DBus, recorder record.EventRecorder, getAddresses func() ([]net.Addr, error)) *KubeletHealthChecker
NewKubeletHealthChecker create an instance of a kubelet health check.
func (*KubeletHealthChecker) HasLastInternalIP ¶
func (k *KubeletHealthChecker) HasLastInternalIP() bool
HasLastInternalIP returns true if the node.InternalIP was stored. Exported for testing.
func (*KubeletHealthChecker) Name ¶
func (*KubeletHealthChecker) Name() string
Name returns the name of this health check.
func (*KubeletHealthChecker) RevertToggleKubeletState ¶
func (k *KubeletHealthChecker) RevertToggleKubeletState()
RevertToggleKubeletState removes the last entry created by ToggleKubeletState().
func (*KubeletHealthChecker) SetKubeletHealthEndpoint ¶
func (k *KubeletHealthChecker) SetKubeletHealthEndpoint(kubeletHealthEndpoint string)
SetKubeletHealthEndpoint set the kubeletHealthEndpoint. Exported for testing.
func (*KubeletHealthChecker) ToggleKubeletState ¶
func (k *KubeletHealthChecker) ToggleKubeletState() bool
ToggleKubeletState should be triggered if the state of the kubelet changed from NotReady -> Ready. It returns true if a reboot of the node should be triggered.
type Reconciler ¶
type Reconciler struct {
Client client.Client
Recorder record.EventRecorder
DBus dbus.DBus
HealthCheckers []HealthChecker
HealthCheckIntervalSeconds int32
}
Reconciler checks for containerd and kubelet health and restarts them if required.
func (*Reconciler) AddToManager ¶
AddToManager adds Reconciler to the given manager.
Source Files