82ee60fe8b
Change additional dnsmasq opts: - Adjust caching size and TTL - Disable resolve conf to not create loops - Change dnsPolicy to default (similarly to kubedns's dnsmasq). The ClusterFirst should not be used to not create loops - Disable negative NXDOMAIN replies to be cached - Make its very installation as optional step (enabled by default). If you don't want more than 3 DNS servers, including 1 for K8s, disable it. - Add docs and a drawing to clarify DNS setup. - Fix stdout logs for dnsmasq/kubedns app configs - Add missed notifies to resolvconf -u handler - Fix idempotency of resolvconf head file changes Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
53 lines
1.2 KiB
YAML
53 lines
1.2 KiB
YAML
---
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apiVersion: extensions/v1beta1
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kind: DaemonSet
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metadata:
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name: dnsmasq
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namespace: kube-system
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labels:
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k8s-app: dnsmasq
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spec:
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template:
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metadata:
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labels:
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k8s-app: dnsmasq
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spec:
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containers:
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- name: dnsmasq
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image: andyshinn/dnsmasq:2.72
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command:
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- dnsmasq
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args:
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- -k
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- "-7"
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- /etc/dnsmasq.d
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securityContext:
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capabilities:
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add:
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- NET_ADMIN
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imagePullPolicy: IfNotPresent
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resources:
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limits:
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cpu: 100m
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memory: 256M
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ports:
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- name: dns
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containerPort: 53
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protocol: UDP
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- name: dns-tcp
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containerPort: 53
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protocol: TCP
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volumeMounts:
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- name: etcdnsmasqd
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mountPath: /etc/dnsmasq.d
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- name: etcdnsmasqdavailable
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mountPath: /etc/dnsmasq.d-available
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volumes:
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- name: etcdnsmasqd
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hostPath:
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path: /etc/dnsmasq.d
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- name: etcdnsmasqdavailable
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hostPath:
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path: /etc/dnsmasq.d-available
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dnsPolicy: Default # Don't use cluster DNS.
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