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Give healthz more memory to mitigate #29688

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This commit is contained in:
Prashanth Balasubramanian 2016-07-27 11:14:33 -07:00
parent c29f3238ec
commit 79d7519f67
3 changed files with 36 additions and 24 deletions
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20
cluster/addons/dns/skydns-rc.yaml.base
View File

@ -21,22 +21,22 @@
apiVersion: v1 apiVersion: v1
kind: ReplicationController kind: ReplicationController
metadata: metadata:
name: kube-dns-v18 name: kube-dns-v19
namespace: kube-system namespace: kube-system
labels: labels:
k8s-app: kube-dns k8s-app: kube-dns
version: v18 version: v19
kubernetes.io/cluster-service: "true" kubernetes.io/cluster-service: "true"
spec: spec:
replicas: __PILLAR__DNS__REPLICAS__ replicas: __PILLAR__DNS__REPLICAS__
selector: selector:
k8s-app: kube-dns k8s-app: kube-dns
version: v18 version: v19
template: template:
metadata: metadata:
labels: labels:
k8s-app: kube-dns k8s-app: kube-dns
version: v18 version: v19
kubernetes.io/cluster-service: "true" kubernetes.io/cluster-service: "true"
spec: spec:
containers: containers:
@ -49,10 +49,10 @@ spec:
# "burstable" category so the kubelet doesn't backoff from restarting it. # "burstable" category so the kubelet doesn't backoff from restarting it.
limits: limits:
cpu: 100m cpu: 100m
memory: 200Mi memory: 170Mi
requests: requests:
cpu: 100m cpu: 100m
memory: 100Mi memory: 70Mi
livenessProbe: livenessProbe:
httpGet: httpGet:
path: /healthz path: /healthz
@ -102,10 +102,14 @@ spec:
# keep request = limit to keep this container in guaranteed class # keep request = limit to keep this container in guaranteed class
limits: limits:
cpu: 10m cpu: 10m
memory: 20Mi memory: 50Mi
requests: requests:
cpu: 10m cpu: 10m
memory: 20Mi # Note that this container shouldn't really need 50Mi of memory. The
# limits are set higher than expected pending investigation on #29688.
# The extra memory was stolen from the kubedns container to keep the
# net memory requested by the pod constant.
memory: 50Mi
args: args:
- -cmd=nslookup kubernetes.default.svc.__PILLAR__DNS__DOMAIN__ 127.0.0.1 >/dev/null && nslookup kubernetes.default.svc.__PILLAR__DNS__DOMAIN__ 127.0.0.1:10053 >/dev/null - -cmd=nslookup kubernetes.default.svc.__PILLAR__DNS__DOMAIN__ 127.0.0.1 >/dev/null && nslookup kubernetes.default.svc.__PILLAR__DNS__DOMAIN__ 127.0.0.1:10053 >/dev/null
- -port=8080 - -port=8080

20
cluster/addons/dns/skydns-rc.yaml.in
View File

@ -21,22 +21,22 @@
apiVersion: v1 apiVersion: v1
kind: ReplicationController kind: ReplicationController
metadata: metadata:
name: kube-dns-v18 name: kube-dns-v19
namespace: kube-system namespace: kube-system
labels: labels:
k8s-app: kube-dns k8s-app: kube-dns
version: v18 version: v19
kubernetes.io/cluster-service: "true" kubernetes.io/cluster-service: "true"
spec: spec:
replicas: {{ pillar['dns_replicas'] }} replicas: {{ pillar['dns_replicas'] }}
selector: selector:
k8s-app: kube-dns k8s-app: kube-dns
version: v18 version: v19
template: template:
metadata: metadata:
labels: labels:
k8s-app: kube-dns k8s-app: kube-dns
version: v18 version: v19
kubernetes.io/cluster-service: "true" kubernetes.io/cluster-service: "true"
spec: spec:
containers: containers:
@ -49,10 +49,10 @@ spec:
# "burstable" category so the kubelet doesn't backoff from restarting it. # "burstable" category so the kubelet doesn't backoff from restarting it.
limits: limits:
cpu: 100m cpu: 100m
memory: 200Mi memory: 170Mi
requests: requests:
cpu: 100m cpu: 100m
memory: 100Mi memory: 70Mi
livenessProbe: livenessProbe:
httpGet: httpGet:
path: /healthz path: /healthz
@ -102,10 +102,14 @@ spec:
# keep request = limit to keep this container in guaranteed class # keep request = limit to keep this container in guaranteed class
limits: limits:
cpu: 10m cpu: 10m
memory: 20Mi memory: 50Mi
requests: requests:
cpu: 10m cpu: 10m
memory: 20Mi # Note that this container shouldn't really need 50Mi of memory. The
# limits are set higher than expected pending investigation on #29688.
# The extra memory was stolen from the kubedns container to keep the
# net memory requested by the pod constant.
memory: 50Mi
args: args:
- -cmd=nslookup kubernetes.default.svc.{{ pillar['dns_domain'] }} 127.0.0.1 >/dev/null && nslookup kubernetes.default.svc.{{ pillar['dns_domain'] }} 127.0.0.1:10053 >/dev/null - -cmd=nslookup kubernetes.default.svc.{{ pillar['dns_domain'] }} 127.0.0.1 >/dev/null && nslookup kubernetes.default.svc.{{ pillar['dns_domain'] }} 127.0.0.1:10053 >/dev/null
- -port=8080 - -port=8080

20
cluster/addons/dns/skydns-rc.yaml.sed
View File

@ -21,22 +21,22 @@
apiVersion: v1 apiVersion: v1
kind: ReplicationController kind: ReplicationController
metadata: metadata:
name: kube-dns-v18 name: kube-dns-v19
namespace: kube-system namespace: kube-system
labels: labels:
k8s-app: kube-dns k8s-app: kube-dns
version: v18 version: v19
kubernetes.io/cluster-service: "true" kubernetes.io/cluster-service: "true"
spec: spec:
replicas: $DNS_REPLICAS replicas: $DNS_REPLICAS
selector: selector:
k8s-app: kube-dns k8s-app: kube-dns
version: v18 version: v19
template: template:
metadata: metadata:
labels: labels:
k8s-app: kube-dns k8s-app: kube-dns
version: v18 version: v19
kubernetes.io/cluster-service: "true" kubernetes.io/cluster-service: "true"
spec: spec:
containers: containers:
@ -49,10 +49,10 @@ spec:
# "burstable" category so the kubelet doesn't backoff from restarting it. # "burstable" category so the kubelet doesn't backoff from restarting it.
limits: limits:
cpu: 100m cpu: 100m
memory: 200Mi memory: 170Mi
requests: requests:
cpu: 100m cpu: 100m
memory: 100Mi memory: 70Mi
livenessProbe: livenessProbe:
httpGet: httpGet:
path: /healthz path: /healthz
@ -101,10 +101,14 @@ spec:
# keep request = limit to keep this container in guaranteed class # keep request = limit to keep this container in guaranteed class
limits: limits:
cpu: 10m cpu: 10m
memory: 20Mi memory: 50Mi
requests: requests:
cpu: 10m cpu: 10m
memory: 20Mi # Note that this container shouldn't really need 50Mi of memory. The
# limits are set higher than expected pending investigation on #29688.
# The extra memory was stolen from the kubedns container to keep the
# net memory requested by the pod constant.
memory: 50Mi
args: args:
- -cmd=nslookup kubernetes.default.svc.$DNS_DOMAIN 127.0.0.1 >/dev/null && nslookup kubernetes.default.svc.$DNS_DOMAIN 127.0.0.1:10053 >/dev/null - -cmd=nslookup kubernetes.default.svc.$DNS_DOMAIN 127.0.0.1 >/dev/null && nslookup kubernetes.default.svc.$DNS_DOMAIN 127.0.0.1:10053 >/dev/null
- -port=8080 - -port=8080