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cmd/k8s-operator: allow specifying replicas for connectors (#16721)

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This commit adds a `replicas` field to the `Connector` custom resource that
allows users to specify the number of desired replicas deployed for their
connectors.

This allows users to deploy exit nodes, subnet routers and app connectors
in a highly available fashion.

Fixes #14020

Signed-off-by: David Bond <davidsbond93@gmail.com>
This commit is contained in:
David Bond
2025-09-02 13:10:03 +01:00
committed by GitHub
parent d05e6dc09e
commit 12ad630128
13 changed files with 665 additions and 202 deletions
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31
cmd/k8s-operator/ingress.go
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@@ -212,6 +212,7 @@ func (a *IngressReconciler) maybeProvision(ctx context.Context, logger *zap.Suga
hostname := hostnameForIngress(ing)
sts := &tailscaleSTSConfig{
Replicas: 1,
Hostname: hostname,
ParentResourceName: ing.Name,
ParentResourceUID: string(ing.UID),
@@ -227,27 +228,23 @@ func (a *IngressReconciler) maybeProvision(ctx context.Context, logger *zap.Suga
sts.ForwardClusterTrafficViaL7IngressProxy = true
}
if _, err := a.ssr.Provision(ctx, logger, sts); err != nil {
if _, err = a.ssr.Provision(ctx, logger, sts); err != nil {
return fmt.Errorf("failed to provision: %w", err)
}
dev, err := a.ssr.DeviceInfo(ctx, crl, logger)
devices, err := a.ssr.DeviceInfo(ctx, crl, logger)
if err != nil {
return fmt.Errorf("failed to retrieve Ingress HTTPS endpoint status: %w", err)
}
if dev == nil || dev.ingressDNSName == "" {
logger.Debugf("no Ingress DNS name known yet, waiting for proxy Pod initialize and start serving Ingress")
// No hostname yet. Wait for the proxy pod to auth.
ing.Status.LoadBalancer.Ingress = nil
if err := a.Status().Update(ctx, ing); err != nil {
return fmt.Errorf("failed to update ingress status: %w", err)
}
return nil
}
logger.Debugf("setting Ingress hostname to %q", dev.ingressDNSName)
ing.Status.LoadBalancer.Ingress = []networkingv1.IngressLoadBalancerIngress{
{
ing.Status.LoadBalancer.Ingress = nil
for _, dev := range devices {
if dev.ingressDNSName == "" {
continue
}
logger.Debugf("setting Ingress hostname to %q", dev.ingressDNSName)
ing.Status.LoadBalancer.Ingress = append(ing.Status.LoadBalancer.Ingress, networkingv1.IngressLoadBalancerIngress{
Hostname: dev.ingressDNSName,
Ports: []networkingv1.IngressPortStatus{
{
@@ -255,11 +252,13 @@ func (a *IngressReconciler) maybeProvision(ctx context.Context, logger *zap.Suga
Port: 443,
},
},
},
})
}
if err := a.Status().Update(ctx, ing); err != nil {
if err = a.Status().Update(ctx, ing); err != nil {
return fmt.Errorf("failed to update ingress status: %w", err)
}
return nil
}