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/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package addons
const (
KubeProxyConfigMap = `
kind: ConfigMap
apiVersion: v1
metadata:
name: kube-proxy
namespace: kube-system
labels:
app: kube-proxy
data:
kubeconfig.conf: |
apiVersion: v1
kind: Config
clusters:
- cluster:
certificate-authority: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
server: {{ .MasterEndpoint }}
name: default
contexts:
- context:
cluster: default
namespace: default
user: default
name: default
current-context: default
users:
- name: default
user:
tokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
`
KubeProxyDaemonSet = `
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
labels:
k8s-app: kube-proxy
name: kube-proxy
namespace: kube-system
spec:
selector:
matchLabels:
k8s-app: kube-proxy
template:
metadata:
labels:
k8s-app: kube-proxy
spec:
containers:
- name: kube-proxy
image: {{ .Image }}
imagePullPolicy: IfNotPresent
command:
- /usr/local/bin/kube-proxy
- --kubeconfig=/var/lib/kube-proxy/kubeconfig.conf
{{ .ClusterCIDR }}
securityContext:
privileged: true
volumeMounts:
- mountPath: /var/lib/kube-proxy
name: kube-proxy
hostNetwork: true
serviceAccountName: kube-proxy
# TODO: Why doesn't the Decoder recognize this new field and decode it properly? Right now it's ignored
# tolerations:
# - key: {{ .MasterTaintKey }}
# effect: NoSchedule
volumes:
- name: kube-proxy
configMap:
name: kube-proxy
`
KubeDNSVersion = "1.13.0"
KubeDNSDeployment = `
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: kube-dns
namespace: kube-system
labels:
k8s-app: kube-dns
spec:
# replicas: not specified here:
# 1. In order to make Addon Manager do not reconcile this replicas parameter.
# 2. Default is 1.
# 3. Will be tuned in real time if DNS horizontal auto-scaling is turned on.
strategy:
rollingUpdate:
maxSurge: 10%
maxUnavailable: 0
selector:
matchLabels:
k8s-app: kube-dns
template:
metadata:
labels:
k8s-app: kube-dns
annotations:
scheduler.alpha.kubernetes.io/critical-pod: ''
spec:
volumes:
- name: kube-dns-config
configMap:
name: kube-dns
optional: true
containers:
- name: kubedns
image: {{ .ImageRepository }}/k8s-dns-kube-dns-{{ .Arch }}:{{ .Version }}
imagePullPolicy: IfNotPresent
resources:
# TODO: Set memory limits when we've profiled the container for large
# clusters, then set request = limit to keep this container in
# guaranteed class. Currently, this container falls into the
# "burstable" category so the kubelet doesn't backoff from restarting it.
limits:
memory: 170Mi
requests:
cpu: 100m
memory: 70Mi
livenessProbe:
httpGet:
path: /healthcheck/kubedns
port: 10054
scheme: HTTP
initialDelaySeconds: 60
timeoutSeconds: 5
successThreshold: 1
failureThreshold: 5
readinessProbe:
httpGet:
path: /readiness
port: 8081
scheme: HTTP
# we poll on pod startup for the Kubernetes master service and
# only setup the /readiness HTTP server once that's available.
initialDelaySeconds: 3
timeoutSeconds: 5
args:
- --domain={{ .DNSDomain }}.
- --dns-port=10053
- --config-dir=/kube-dns-config
- --v=2
# Do we need to set __PILLAR__FEDERATIONS__DOMAIN__MAP__ here?
env:
- name: PROMETHEUS_PORT
value: "10055"
ports:
- containerPort: 10053
name: dns-local
protocol: UDP
- containerPort: 10053
name: dns-tcp-local
protocol: TCP
- containerPort: 10055
name: metrics
protocol: TCP
volumeMounts:
- name: kube-dns-config
mountPath: /kube-dns-config
- name: dnsmasq
image: {{ .ImageRepository }}/k8s-dns-dnsmasq-{{ .Arch }}:{{ .Version }}
imagePullPolicy: IfNotPresent
livenessProbe:
httpGet:
path: /healthcheck/dnsmasq
port: 10054
scheme: HTTP
initialDelaySeconds: 60
timeoutSeconds: 5
successThreshold: 1
failureThreshold: 5
args:
- --cache-size=1000
- --server=/{{ .DNSDomain }}/127.0.0.1#10053
- --server=/in-addr.arpa/127.0.0.1#10053
- --server=/ip6.arpa/127.0.0.1#10053
- --log-facility=-
ports:
- containerPort: 53
name: dns
protocol: UDP
- containerPort: 53
name: dns-tcp
protocol: TCP
# see: https://github.com/kubernetes/kubernetes/issues/29055 for details
resources:
requests:
cpu: 150m
memory: 10Mi
- name: sidecar
image: {{ .ImageRepository }}/k8s-dns-sidecar-{{ .Arch }}:{{ .Version }}
imagePullPolicy: IfNotPresent
livenessProbe:
httpGet:
path: /metrics
port: 10054
scheme: HTTP
initialDelaySeconds: 60
timeoutSeconds: 5
successThreshold: 1
failureThreshold: 5
args:
- --v=2
- --logtostderr
- --probe=kubedns,127.0.0.1:10053,kubernetes.default.svc.{{ .DNSDomain }},5,A
- --probe=dnsmasq,127.0.0.1:53,kubernetes.default.svc.{{ .DNSDomain }},5,A
ports:
- containerPort: 10054
name: metrics
protocol: TCP
resources:
requests:
memory: 20Mi
cpu: 10m
dnsPolicy: Default # Don't use cluster DNS.
serviceAccountName: kube-dns
# TODO: Why doesn't the Decoder recognize this new field and decode it properly? Right now it's ignored
# tolerations:
# - key: CriticalAddonsOnly
# operator: Exists
# - key: {{ .MasterTaintKey }}
# effect: NoSchedule
# TODO: Remove this affinity field as soon as we are using manifest lists
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: beta.kubernetes.io/arch
operator: In
values:
- {{ .Arch }}
`
KubeDNSService = `
apiVersion: v1
kind: Service
metadata:
labels:
k8s-app: kube-dns
kubernetes.io/cluster-service: "true"
kubernetes.io/name: "KubeDNS"
name: kube-dns
namespace: kube-system
spec:
clusterIP: {{ .DNSIP }}
ports:
- name: dns
port: 53
protocol: UDP
targetPort: 53
- name: dns-tcp
port: 53
protocol: TCP
targetPort: 53
selector:
k8s-app: kube-dns
`
)
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