Documentation
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Overview ¶
Package node provides node-level operations for the agent — notably removing the aether startup taint once the agent's CNI is serving, so workload pods can schedule onto the node (the Cilium-style cold-start gate; see issue #261).
Index ¶
Constants ¶
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Functions ¶
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Types ¶
type TaintRemover ¶
type TaintRemover struct {
Client client.Client
NodeName string
SocketPath string
Log *slog.Logger
}
TaintRemover is a controller-runtime reconciler that removes the aether startup taint (aetherlabels.TaintAgentNotReady) from this agent's OWN node whenever the taint is present AND the CNI server is serving — signalled by its Unix socket existing, which means a pod's CNI ADD can now be handled. Workload pods don't tolerate the taint, so they wait until this runs.
Unlike the original one-shot remover, it reconciles: the controller's node-taint guard can (re-)apply the taint to a running node after a reboot or an agent outage (issue #569, gaps G1/G2), and this remover drops it again once CNI is serving. Best-effort: it never fails agent startup.
func (*TaintRemover) NeedLeaderElection ¶
func (r *TaintRemover) NeedLeaderElection() bool
NeedLeaderElection runs on every agent (the taint is per-node), not just the leader.
func (*TaintRemover) Reconcile ¶
func (r *TaintRemover) Reconcile(ctx context.Context, req reconcile.Request) (reconcile.Result, error)
Reconcile removes the startup taint from this agent's node when it is present and the CNI socket is serving. When the taint is present but CNI isn't up yet, it requeues (the reconciler can't watch a Unix socket) rather than blocking a worker. Best-effort: a patch failure is retried by controller-runtime, never surfaced as a startup failure.
func (*TaintRemover) SetupWithManager ¶
func (r *TaintRemover) SetupWithManager(mgr ctrl.Manager) error
SetupWithManager registers the remover to watch ONLY this agent's own Node object (filtered by node name), so every agent reconciles its own node and no other. A change that (re-)adds the taint re-triggers removal.
Source Files