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[stable/node-local-dns]: Use selector labels for ServiceMonitor selectors #592

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Jul 18, 2024
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[stable/node-local-dns]: Use selector labels for ServiceMonitor selectors #592

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16 changes: 8 additions & 8 deletions stable/node-local-dns/Chart.yaml
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Original file line number Diff line number Diff line change
@@ -1,18 +1,18 @@
apiVersion: v2
name: node-local-dns
version: 2.0.13
version: 2.0.14
appVersion: 1.23.1
maintainers:
- name: gabrieladt
email: [email protected]
- name: gabrieladt
email: [email protected]
icon: https://miro.medium.com/max/641/1*q3vcbyVXcvaRnFLEQEHrXw.png
description: |
A chart to install node-local-dns.
A chart to install node-local-dns.

NodeLocal DNSCache improves Cluster DNS performance by running a DNS caching agent on cluster nodes as a DaemonSet.
NodeLocal DNSCache improves Cluster DNS performance by running a DNS caching agent on cluster nodes as a DaemonSet.

In today's architecture, Pods in 'ClusterFirst' DNS mode reach out to a kube-dns serviceIP for DNS queries. This is translated to a kube-dns/CoreDNS endpoint via iptables rules added by kube-proxy. With this new architecture, Pods will reach out to the DNS caching agent running on the same node, thereby avoiding iptables DNAT rules and connection tracking. The local caching agent will query kube-dns service for cache misses of cluster hostnames ("cluster.local" suffix by default).
In today's architecture, Pods in 'ClusterFirst' DNS mode reach out to a kube-dns serviceIP for DNS queries. This is translated to a kube-dns/CoreDNS endpoint via iptables rules added by kube-proxy. With this new architecture, Pods will reach out to the DNS caching agent running on the same node, thereby avoiding iptables DNAT rules and connection tracking. The local caching agent will query kube-dns service for cache misses of cluster hostnames ("cluster.local" suffix by default).

Further documentation is [here](https://kubernetes.io/docs/tasks/administer-cluster/nodelocaldns/)
Further documentation is [here](https://kubernetes.io/docs/tasks/administer-cluster/nodelocaldns/)

This helm chart works for both kube-proxy setups (iptables or ipvs).
This helm chart works for both kube-proxy setups (iptables or ipvs).
2 changes: 1 addition & 1 deletion stable/node-local-dns/README.md
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@@ -1,6 +1,6 @@
# node-local-dns

![Version: 2.0.13](https://img.shields.io/badge/Version-2.0.13-informational?style=flat-square) ![AppVersion: 1.23.1](https://img.shields.io/badge/AppVersion-1.23.1-informational?style=flat-square)
![Version: 2.0.14](https://img.shields.io/badge/Version-2.0.14-informational?style=flat-square) ![AppVersion: 1.23.1](https://img.shields.io/badge/AppVersion-1.23.1-informational?style=flat-square)

A chart to install node-local-dns.

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2 changes: 1 addition & 1 deletion stable/node-local-dns/templates/servicemonitor.yaml
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Expand Up @@ -32,5 +32,5 @@ spec:
- kube-system
selector:
matchLabels:
k8s-app: {{ include "node-local-dns.name" . }}
{{- include "node-local-dns.selectorLabels" . | nindent 6 }}
{{- end -}}
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