74 lines
3.2 KiB
Go
74 lines
3.2 KiB
Go
package options
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import (
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"time"
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"github.com/spf13/pflag"
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)
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type ControllerOptions struct {
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APIServerHost string
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Namespace string
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LeaderElect bool
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LeaderElectionNamespace string
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LeaderElectionLeaseDuration time.Duration
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LeaderElectionRenewDeadline time.Duration
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LeaderElectionRetryPeriod time.Duration
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}
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const (
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defaultAPIServerHost = ""
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defaultNamespace = ""
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defaultLeaderElect = true
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defaultLeaderElectionNamespace = "kube-system"
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defaultLeaderElectionLeaseDuration = 15 * time.Second
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defaultLeaderElectionRenewDeadline = 10 * time.Second
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defaultLeaderElectionRetryPeriod = 2 * time.Second
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)
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func NewControllerOptions() *ControllerOptions {
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return &ControllerOptions{
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APIServerHost: defaultAPIServerHost,
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Namespace: defaultNamespace,
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LeaderElect: defaultLeaderElect,
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LeaderElectionNamespace: defaultLeaderElectionNamespace,
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LeaderElectionLeaseDuration: defaultLeaderElectionLeaseDuration,
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LeaderElectionRenewDeadline: defaultLeaderElectionRenewDeadline,
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LeaderElectionRetryPeriod: defaultLeaderElectionRetryPeriod,
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}
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}
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func (s *ControllerOptions) AddFlags(fs *pflag.FlagSet) {
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fs.StringVar(&s.APIServerHost, "master", defaultAPIServerHost, ""+
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"Optional apiserver host address to connect to. If not specified, autoconfiguration "+
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"will be attempted.")
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fs.StringVar(&s.Namespace, "namespace", "", defaultNamespace+
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"Optional namespace to monitor resources within. THis can be used to limit the scope "+
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"of cert-manager to a single namespace. If not specified, all namespaces will be watched")
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fs.BoolVar(&s.LeaderElect, "leader-elect", true, ""+
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"If true, cert-manager will perform leader election between instances to ensure no more "+
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"than one instance of cert-manager operates at a time")
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fs.StringVar(&s.LeaderElectionNamespace, "leader-election-namespace", defaultLeaderElectionNamespace, ""+
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"Namespace used to perform leader election. Only used if leader election is enabled")
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fs.DurationVar(&s.LeaderElectionLeaseDuration, "leader-election-lease-duration", defaultLeaderElectionLeaseDuration, ""+
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"The duration that non-leader candidates will wait after observing a leadership "+
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"renewal until attempting to acquire leadership of a led but unrenewed leader "+
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"slot. This is effectively the maximum duration that a leader can be stopped "+
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"before it is replaced by another candidate. This is only applicable if leader "+
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"election is enabled.")
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fs.DurationVar(&s.LeaderElectionRenewDeadline, "leader-election-renew-deadline", defaultLeaderElectionRenewDeadline, ""+
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"The interval between attempts by the acting master to renew a leadership slot "+
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"before it stops leading. This must be less than or equal to the lease duration. "+
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"This is only applicable if leader election is enabled.")
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fs.DurationVar(&s.LeaderElectionRetryPeriod, "leader-election-retry-period", defaultLeaderElectionRetryPeriod, ""+
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"The duration the clients should wait between attempting acquisition and renewal "+
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"of a leadership. This is only applicable if leader election is enabled.")
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}
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func (o *ControllerOptions) Validate() error {
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return nil
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}
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