Increase speed sync with k8s

[v-kamerdinerov]

Changes proposed in this PR

• Increased speed sync between k8s and consul

In addition to registering all services periodically, now sync new services as they appear, allowing to increase the full sync interval and reduce the overall number of catalog register call to Consul servers.
This makes a difference for kube clusters with hundreds of instances without delaying updates.

How I've tested this PR

How I expect reviewers to test this PR

Checklist

• Tests added
• CHANGELOG entry added not needed

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[blake]

Hi @v-kamerdinerov, the sync speed can be adjusted using the syncCatalog.consulWriteInterval parameter in the Helm chart, or by passing the -consul-write-interval flag to consul-k8s-control-plane sync-catalog, if you happen to be manually starting the control plane process.

Is this suitable for your needs?

[v-kamerdinerov]

Hi @v-kamerdinerov, the sync speed can be adjusted using the syncCatalog.consulWriteInterval parameter in the Helm chart, or by passing the -consul-write-interval flag to consul-k8s-control-plane sync-catalog, if you happen to be manually starting the control plane process.

Is this suitable for your needs?

Hello @blake

That's something - thank you!

However, my fix also allows synchronization when - registration is new or changed

ConsulSyncPeriod I can reset to default, but my functional seems to be useful too.

[jukie]

However, my fix also allows synchronization when - registration is new or changed

I may be mistaken but I thought thtat syncer already reacts as soon as endpoints are updated by use of the Informer? ConsulSyncPeriod is useful to reconcile drift for example and ensure that periodic syncs happen but what are you looking to achieve with this?

[v-kamerdinerov]

However, my fix also allows synchronization when - registration is new or changed

I may be mistaken but I though thtat syncer already reacts as soon as endpoints are updated by use of the Informer? ConsulSyncPeriod is useful to reconcile drift for example and ensure that periodic syncs happen but what are you looking to achieve with this?

In addition to registering all services periodically, now sync new services as they appear, allowing to increase the full sync interval and reduce the overall number of catalog register call to Consul servers.
This makes a difference for kube clusters with hundreds of instances without delaying updates.

[v-kamerdinerov]

Checked latest version - build was successful.

❯ ./control-plane version
consul-k8s-control-plane v1.6.0-dev