Reduce the Delta between this and the Autoscaler AWS documentation

This commit is contained in:
Steve Coffman 2018-02-08 06:49:24 -05:00
parent 2fdf83454b
commit 6942f1d5e3
3 changed files with 226 additions and 3 deletions

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@ -1,10 +1,12 @@
# Cluster Autoscaler Addon
Note that you likely want to change `AWS_REGION` and `GROUP_NAME`, and probably `MIN_NODES` and `MAX_NODES`
We strongly recommend using Cluster Autoscaler with the kubernetes version for which it was meant. Refer to the [Cluster Autoscaler documentation compatibility matrix]( https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/README.md#releases)
Note that you likely want to change `AWS_REGION` and `GROUP_NAME`, and probably `MIN_NODES` and `MAX_NODES`. Here is an example of how you may wish to do so:
```bash
CLOUD_PROVIDER=aws
IMAGE=gcr.io/google_containers/cluster-autoscaler:v0.6.0
IMAGE=gcr.io/google_containers/cluster-autoscaler:v1.1.0
MIN_NODES=1
MAX_NODES=5
AWS_REGION=us-east-1
@ -12,7 +14,7 @@ GROUP_NAME="nodes.k8s.example.com"
SSL_CERT_PATH="/etc/ssl/certs/ca-certificates.crt" # (/etc/ssl/certs for gce)
addon=cluster-autoscaler.yml
wget -O ${addon} https://raw.githubusercontent.com/kubernetes/kops/master/addons/cluster-autoscaler/v1.6.0.yaml
wget -O ${addon} https://raw.githubusercontent.com/kubernetes/kops/master/addons/cluster-autoscaler/v1.8.0.yaml
sed -i -e "s@{{CLOUD_PROVIDER}}@${CLOUD_PROVIDER}@g" "${addon}"
sed -i -e "s@{{IMAGE}}@${IMAGE}@g" "${addon}"

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@ -11,3 +11,7 @@ spec:
selector:
k8s-addon: cluster-autoscaler.addons.k8s.io
manifest: v1.6.0.yaml
- version: 1.8.0
selector:
k8s-addon: cluster-autoscaler.addons.k8s.io
manifest: v1.8.0.yaml

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@ -0,0 +1,217 @@
---
apiVersion: v1
kind: ServiceAccount
metadata:
labels:
k8s-addon: cluster-autoscaler.addons.k8s.io
app: cluster-autoscaler
name: cluster-autoscaler
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
name: cluster-autoscaler
labels:
k8s-addon: cluster-autoscaler.addons.k8s.io
app: cluster-autoscaler
rules:
- apiGroups:
- ""
resources:
- events
- endpoints
verbs:
- create
- patch
- apiGroups:
- ""
resources:
- pods/eviction
verbs:
- create
- apiGroups:
- ""
resources:
- pods/status
verbs:
- update
- apiGroups:
- ""
resources:
- endpoints
resourceNames:
- cluster-autoscaler
verbs:
- get
- update
- apiGroups:
- ""
resources:
- nodes
verbs:
- watch
- list
- get
- update
- apiGroups:
- ""
resources:
- pods
- services
- replicationcontrollers
- persistentvolumeclaims
- persistentvolumes
verbs:
- watch
- list
- get
- apiGroups:
- extensions
resources:
- replicasets
- daemonsets
verbs:
- watch
- list
- get
- apiGroups:
- policy
resources:
- poddisruptionbudgets
verbs:
- watch
- list
- apiGroups:
- apps
resources:
- statefulsets
verbs:
- watch
- list
- get
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: Role
metadata:
name: cluster-autoscaler
namespace: kube-system
labels:
k8s-addon: cluster-autoscaler.addons.k8s.io
app: cluster-autoscaler
rules:
- apiGroups:
- ""
resources:
- configmaps
verbs:
- create
- apiGroups:
- ""
resources:
- configmaps
resourceNames:
- cluster-autoscaler-status
verbs:
- delete
- get
- update
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
name: cluster-autoscaler
labels:
k8s-addon: cluster-autoscaler.addons.k8s.io
app: cluster-autoscaler
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-autoscaler
subjects:
- kind: ServiceAccount
name: cluster-autoscaler
namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: RoleBinding
metadata:
name: cluster-autoscaler
namespace: kube-system
labels:
k8s-addon: cluster-autoscaler.addons.k8s.io
app: cluster-autoscaler
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: cluster-autoscaler
subjects:
- kind: ServiceAccount
name: cluster-autoscaler
namespace: kube-system
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: cluster-autoscaler
namespace: kube-system
labels:
k8s-addon: cluster-autoscaler.addons.k8s.io
app: cluster-autoscaler
spec:
replicas: 1
selector:
matchLabels:
app: cluster-autoscaler
template:
metadata:
labels:
k8s-addon: cluster-autoscaler.addons.k8s.io
app: cluster-autoscaler
annotations:
# For 1.6, we keep the old tolerations in case of a downgrade to 1.5
scheduler.alpha.kubernetes.io/tolerations: '[{"key":"dedicated", "value":"master"}]'
spec:
tolerations:
- effect: NoSchedule
key: node-role.kubernetes.io/master
nodeSelector:
kubernetes.io/role: master
serviceAccountName: cluster-autoscaler
containers:
- name: cluster-autoscaler
image: {{IMAGE}}
resources:
limits:
cpu: 100m
memory: 300Mi
requests:
cpu: 100m
memory: 300Mi
command:
- ./cluster-autoscaler
- --v=4
- --stderrthreshold=info
- --cloud-provider={{CLOUD_PROVIDER}}
- --skip-nodes-with-local-storage=false
- --nodes={{MIN_NODES}}:{{MAX_NODES}}:{{GROUP_NAME}}
env:
- name: AWS_REGION
value: {{AWS_REGION}}
volumeMounts:
- name: ssl-certs
mountPath: {{SSL_CERT_PATH}}
readOnly: true
volumes:
- name: ssl-certs
hostPath:
path: {{SSL_CERT_PATH}}
dnsPolicy: "Default"