c12s-kubespray/roles/kubernetes-apps/metrics_server/templates/metrics-server-deployment.yaml.j2

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---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: metrics-server
namespace: kube-system
labels:
app.kubernetes.io/name: metrics-server
kubernetes.io/cluster-service: "true"
addonmanager.kubernetes.io/mode: Reconcile
version: {{ metrics_server_version }}
spec:
selector:
matchLabels:
app.kubernetes.io/name: metrics-server
version: {{ metrics_server_version }}
template:
metadata:
name: metrics-server
labels:
app.kubernetes.io/name: metrics-server
version: {{ metrics_server_version }}
annotations:
seccomp.security.alpha.kubernetes.io/pod: 'docker/default'
spec:
{% if kube_version is version('v1.11.1', '>=') %}
priorityClassName: system-cluster-critical
{% endif %}
serviceAccountName: metrics-server
containers:
- name: metrics-server
image: {{ metrics_server_image_repo }}:{{ metrics_server_image_tag }}
command:
- /metrics-server
{% if metrics_server_kubelet_preferred_address_types %}
- --kubelet-preferred-address-types={{ metrics_server_kubelet_preferred_address_types }}
{% endif %}
{% if metrics_server_kubelet_insecure_tls %}
- --kubelet-insecure-tls
{% endif %}
- --metric-resolution={{ metrics_server_metric_resolution }}
ports:
- containerPort: 443
name: https
protocol: TCP
livenessProbe:
failureThreshold: 3
httpGet:
path: /healthz
port: https
scheme: HTTPS
initialDelaySeconds: 30
periodSeconds: 30
successThreshold: 1
timeoutSeconds: 10
readinessProbe:
failureThreshold: 3
httpGet:
path: /healthz
port: 443
scheme: HTTPS
initialDelaySeconds: 30
periodSeconds: 30
successThreshold: 1
timeoutSeconds: 10
securityContext:
# Currently non root is not supported:
# https://github.com/kubernetes-incubator/metrics-server/issues/37
#
# runAsNonRoot: true
# runAsUser: 65534
capabilities:
drop:
- ALL
add:
- NET_BIND_SERVICE
- name: metrics-server-nanny
image: {{ addon_resizer_image_repo }}:{{ addon_resizer_image_tag }}
resources:
limits:
cpu: {{ addon_resizer_limits_cpu }}
memory: {{ addon_resizer_limits_memory }}
requests:
cpu: {{ addon_resizer_requests_cpu }}
memory: {{ addon_resizer_requests_memory }}
env:
- name: MY_POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: MY_POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
volumeMounts:
- name: metrics-server-config-volume
mountPath: /etc/config
command:
- /pod_nanny
- --config-dir=/etc/config
- --cpu={{ metrics_server_cpu }}
- --extra-cpu=0.5m
- --memory={{ metrics_server_memory }}
- --extra-memory={{ metrics_server_memory_per_node }}
- --threshold=5
- --deployment=metrics-server-{{ metrics_server_version }}
- --container=metrics-server
- --poll-period=300000
- --estimator=exponential
# Specifies the smallest cluster (defined in number of nodes)
# resources will be scaled to.
- --minClusterSize={{ metrics_server_min_cluster_size }}
volumes:
- name: metrics-server-config-volume
configMap:
name: metrics-server-config
{% if not masters_are_not_tainted %}
tolerations:
- key: node-role.kubernetes.io/master
effect: NoSchedule
- key: "CriticalAddonsOnly"
operator: "Exists"
{% endif %}
affinity:
nodeAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- weight: 100
preference:
matchExpressions:
- key: node-role.kubernetes.io/master
operator: In
values:
- ""