This doc shows how to use the DNS Horizontal Autoscaling featrure in a Kubernetes cluster.
Zihong Zheng MrHohn
MrHohn
/ decorator-sample.go
Created
October 2, 2016 03:40
"Decorator Pattern in Go" learned from GopherCon 2015.
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| package main | |
| import ( | |
| "fmt" | |
| "time" | |
| ) | |
| type Worker interface { | |
| Do(string) bool | |
| } |
MrHohn
/ dns-horizontal-autoscaling.md
Last active
October 23, 2019 09:43
Using DNS Horizontal Autoscaling feature in Kuberentes.
MrHohn
/ kubedns-controller-gke1.5.yaml
Last active
March 10, 2017 18:34
kubedns-controller-gke1.5.yaml
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| apiVersion: extensions/v1beta1 | |
| kind: Deployment | |
| metadata: | |
| annotations: | |
| # deployment.kubernetes.io/revision: "1" | |
| kubectl.kubernetes.io/last-applied-configuration: '{"kind":"Deployment","apiVersion":"extensions/v1beta1","metadata":{"name":"kube-dns","namespace":"kube-system","creationTimestamp":null,"labels":{"k8s-app":"kube-dns","kubernetes.io/cluster-service":"true"}},"spec":{"selector":{"matchLabels":{"k8s-app":"kube-dns"}},"template":{"metadata":{"creationTimestamp":null,"labels":{"k8s-app":"kube-dns"},"annotations":{"scheduler.alpha.kubernetes.io/critical-pod":"","scheduler.alpha.kubernetes.io/tolerations":"[{\"key\":\"CriticalAddonsOnly\", | |
| \"operator\":\"Exists\"}]"}},"spec":{"containers":[{"name":"kubedns","image":"gcr.io/google_containers/kubedns-amd64:1.9","args":["--domain=cluster.local.","--dns-port=10053","--config-map=kube-dns","--v=0"],"ports":[{"name":"dns-local","containerPort":10053,"protocol":"UDP"},{"name":"dns-tcp-local","containerPort":10053,"protocol":"TCP"},{"name":"metric |
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| # $ kubectl get deploy,rs,pods --namespace=kube-system -l k8s-app=kube-dns-autoscaler -o yaml | |
| apiVersion: v1 | |
| items: | |
| - apiVersion: apps/v1beta1 | |
| kind: Deployment | |
| metadata: | |
| annotations: | |
| deployment.kubernetes.io/revision: "1" | |
| kubectl.kubernetes.io/last-applied-configuration: | | |
| {"apiVersion":"extensions/v1beta1","kind":"Deployment","metadata":{"annotations":{},"labels":{"addonmanager.kubernetes.io/mode":"Reconcile","k8s-app":"kube-dns-autoscaler","kubernetes.io/clus |
MrHohn
/ gist:447a74e7fa96cca6481fde8d35696b9b
Created
June 7, 2021 18:32
LB controller logs for https://github.com/kubernetes/kubernetes/issues/102649
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| I0607 16:33:15.391267 10 gce_loadbalancer.go:137] EnsureLoadBalancer(bootstrap-e2e, services-6097, net-tiers-svc, a8d573ae414fd4ec099dff43893319d3, us-west1): ensure EXTERNAL loadbalancer | |
| I0607 16:33:15.573965 10 gen.go:8979] GCEForwardingRules.Get(context.Background.WithDeadline(2021-06-07 17:33:15.391275173 +0000 UTC m=+4774.123372976 [59m59.817298447s]), Key{"a8d573ae414fd4ec099dff43893319d3", region: "us-west1"}) = <nil>, googleapi: Error 404: The resource 'projects/k8s-jkns-gci-gce-ingress-1-6/regions/us-west1/forwardingRules/a8d573ae414fd4ec099dff43893319d3' was not found, notFound | |
| I0607 16:33:15.752599 10 gce_loadbalancer_external.go:74] ensureExternalLoadBalancer(a8d573ae414fd4ec099dff43893319d3(services-6097/net-tiers-svc), us-west1, , [TCP/80], [bootstrap-e2e-master bootstrap-e2e-minion-group-5p5s bootstrap-e2e-minion-group-gp1b bootstrap-e2e-minion-group-rrsg], map[cloud.google.com/network-tier:Standard]) | |
| I0607 16:33:15.752620 10 gce_loadbalancer_external.go:83] ensureExternalLo |
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| 18:13:04.785307 IP 157.240.254.12.443 > 10.251.112.119.33086: Flags [P.], seq 3363:4490, ack 3025, win 280, options [nop,nop,TS val 1737171291 ecr 3179875798], length 1127 | |
| 18:13:04.785339 IP 157.240.254.12.443 > 10.196.32.72.33086: Flags [P.], seq 3363:4490, ack 3025, win 280, options [nop,nop,TS val 1737171291 ecr 3179875798], length 1127 | |
| 18:13:04.785357 IP 10.196.32.72.33086 > 157.240.254.12.443: Flags [.], ack 4490, win 83, options [nop,nop,TS val 3179876134 ecr 1737171291], length 0 | |
| 18:13:04.785369 IP 10.251.112.119.33086 > 157.240.254.12.443: Flags [.], ack 4490, win 83, options [nop,nop,TS val 3179876134 ecr 1737171291], length 0 | |
| 18:13:04.785882 IP 10.196.32.72.33086 > 157.240.254.12.443: Flags [P.], seq 3025:3049, ack 4490, win 83, options [nop,nop,TS val 3179876135 ecr 1737171291], length 24 | |
| 18:13:04.785910 IP 10.251.112.119.33086 > 157.240.254.12.443: Flags [P.], seq 3025:3049, ack 4490, win 83, options [nop,nop,TS val 3179876135 ecr 1737171291], length 24 | |
| 18:13:04.785933 IP 10.196.32.72.33086 > 157. |