27 lines
700 B
Go
27 lines
700 B
Go
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package cluster
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import (
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"context"
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)
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const (
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// EtcdLeaderElector is the id used when constructing an
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// etcdLeaderElector instance through the factory.
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EtcdLeaderElector = "etcd"
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)
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// LeaderElector is a general interface implementing basic leader elections
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// in a clustered environment.
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type LeaderElector interface {
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// Campaign starts a run for leadership. Campaign will block until
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// the caller is elected as the leader.
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Campaign(ctx context.Context) error
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// Resign resigns from the leader role, allowing other election members
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// to take on leadership.
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Resign() error
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// Leader returns the leader value for the current election.
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Leader(ctx context.Context) (string, error)
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}
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