Add sample deployment/service account manifest
Based on https://notes.elmiko.dev/2020/05/22/kubernetes-autoscaler-capd.html
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Ben Moss
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@ -60,3 +60,15 @@ use the group `cluster.x-k8s.io`, with a dynamically acquired version. In
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some situations, such as testing or prototyping, you may wish to change this
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some situations, such as testing or prototyping, you may wish to change this
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group variable. For these situations you may use the environment variable
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group variable. For these situations you may use the environment variable
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`CAPI_GROUP` to change the group that the provider will use.
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`CAPI_GROUP` to change the group that the provider will use.
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## Sample manifest
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A sample manifest that will create a deployment running the autoscaler is
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available. It can be deployed by passing it through `envsubst`, providing
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these environment variables to set the namespace to deploy into as well as the image and tag to use:
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```
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export AUTOSCALER_NS=kube-system
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export AUTOSCALER_IMAGE=us.gcr.io/k8s-artifacts-prod/autoscaling/cluster-autoscaler:v1.18.1
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envsubst < examples/deployment.yaml | kubectl apply -f-
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```
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@ -0,0 +1,167 @@
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: cluster-autoscaler
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namespace: ${AUTOSCALER_NS}
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labels:
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app: cluster-autoscaler
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spec:
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selector:
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matchLabels:
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app: cluster-autoscaler
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replicas: 1
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template:
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metadata:
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labels:
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app: cluster-autoscaler
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spec:
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containers:
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- image: ${AUTOSCALER_IMAGE}
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name: cluster-autoscaler
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command:
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- /cluster-autoscaler
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args:
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- --cloud-provider=clusterapi
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serviceAccountName: cluster-autoscaler
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terminationGracePeriodSeconds: 10
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tolerations:
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- effect: NoSchedule
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key: node-role.kubernetes.io/master
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---
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kind: ClusterRoleBinding
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apiVersion: rbac.authorization.k8s.io/v1beta1
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metadata:
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name: cluster-autoscaler-workload
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: cluster-autoscaler-workload
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subjects:
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- kind: ServiceAccount
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name: cluster-autoscaler
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namespace: ${AUTOSCALER_NS}
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---
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kind: ClusterRoleBinding
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apiVersion: rbac.authorization.k8s.io/v1beta1
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metadata:
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name: cluster-autoscaler-management
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: cluster-autoscaler-management
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subjects:
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- kind: ServiceAccount
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name: cluster-autoscaler
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namespace: ${AUTOSCALER_NS}
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---
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: cluster-autoscaler
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namespace: ${AUTOSCALER_NS}
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---
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kind: ClusterRole
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apiVersion: rbac.authorization.k8s.io/v1beta1
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metadata:
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name: cluster-autoscaler-workload
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rules:
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- apiGroups:
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- ""
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resources:
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- persistentvolumeclaims
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- persistentvolumes
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- pods
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- replicationcontrollers
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verbs:
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- get
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- list
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- watch
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- apiGroups:
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- ""
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resources:
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- nodes
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verbs:
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- get
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- list
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- update
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- watch
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- apiGroups:
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- ""
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resources:
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- pods/eviction
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verbs:
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- create
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- apiGroups:
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- policy
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resources:
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- poddisruptionbudgets
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verbs:
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- list
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- watch
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- apiGroups:
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- storage.k8s.io
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resources:
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- csinodes
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- storageclasses
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verbs:
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- get
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- list
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- watch
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- apiGroups:
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- batch
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resources:
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- jobs
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verbs:
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- list
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- watch
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- apiGroups:
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- apps
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resources:
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- daemonsets
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- replicasets
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- statefulsets
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verbs:
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- list
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- watch
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- apiGroups:
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- ""
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resources:
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- events
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verbs:
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- create
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- patch
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- apiGroups:
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- ""
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resources:
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- configmaps
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verbs:
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- create
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- delete
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- get
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- update
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- apiGroups:
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- coordination.k8s.io
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resources:
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- leases
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verbs:
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- create
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- get
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- update
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---
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kind: ClusterRole
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apiVersion: rbac.authorization.k8s.io/v1beta1
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metadata:
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name: cluster-autoscaler-management
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rules:
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- apiGroups:
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- cluster.x-k8s.io
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resources:
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- machinedeployments
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- machines
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- machinesets
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verbs:
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- get
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- list
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- update
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- watch
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