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Update Prometheus discovery of kube components

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* Kubernetes v1.22.0 disabled kube-controller-manager insecure
port, which was used internally for Prometheus metrics scraping
* Configure Prometheus to discover and scrape endpoints for
kube-scheduler and kube-controller-manager via the authenticated
https ports, via bearer token
* Change firewall ports to allow Prometheus (on worker nodes)
to scrape kube-scheduler and kube-controller-manager targets
that run on controller(s) with hostNetwork
* Disable the insecure port on kube-scheduler
This commit is contained in:
Dalton Hubble
2021-08-10 21:08:49 -07:00
parent 0c99b909a9
commit cbef202eec
22 changed files with 74 additions and 34 deletions
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2
google-cloud/flatcar-linux/kubernetes/network.tf
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@ -55,7 +55,7 @@ resource "google_compute_firewall" "internal-kube-metrics" {
allow {
protocol = "tcp"
ports = [10251, 10252]
ports = [10257, 10259]
}
source_tags = ["${var.cluster_name}-worker"]