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78b8cf6ded
The Kubernetes controller that drives MinecraftServer resources through their lifecycle and issues RCON where readiness requires it.
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
package operator
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import (
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"context"
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"time"
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"felis.lolicon.best/internal/rcon"
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)
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// Prober reports whether a server's RCON endpoint is reachable and accepts the
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// password. A nil error is the loader-agnostic readiness gate (spec §5). It is
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// an interface so the reconciler can be tested without a live server.
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type Prober interface {
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Probe(ctx context.Context, addr, password string) error
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}
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// RconProber is the production Prober: a successful Dial (TCP connect + auth)
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// is sufficient; the connection is closed immediately.
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type RconProber struct {
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// Timeout bounds a single probe. Defaults to 5s.
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Timeout time.Duration
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}
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// Probe dials addr and authenticates with password, honoring the smaller of the
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// configured timeout and any deadline already on ctx.
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func (p RconProber) Probe(ctx context.Context, addr, password string) error {
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timeout := p.Timeout
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if timeout <= 0 {
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timeout = 5 * time.Second
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}
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if dl, ok := ctx.Deadline(); ok {
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if remaining := time.Until(dl); remaining > 0 && remaining < timeout {
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timeout = remaining
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}
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}
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conn, err := rcon.Dial(addr, password, timeout)
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if err != nil {
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return err
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}
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return conn.Close()
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}
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