-
Notifications
You must be signed in to change notification settings - Fork 4k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #454 from feiskyer/azure
Add azure cloud provider
- Loading branch information
Showing
81 changed files
with
17,706 additions
and
2,834 deletions.
There are no files selected for viewing
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,202 @@ | ||
| # Cluster Autoscaler on Azure | ||
|
|
||
| The cluster autoscaler on Azure scales worker nodes within any specified autoscaling group. It will run as a `Deployment` in your cluster. This README will go over some of the necessary steps required to get the cluster autoscaler up and running. | ||
|
|
||
| ## Kubernetes Version | ||
|
|
||
| Cluster autoscaler must run on Kubernetes with Azure VMSS support ([kubernetes#43287](https://github.com/kubernetes/kubernetes/issues/43287)). It is planed in Kubernetes v1.10. | ||
|
|
||
| ## Permissions | ||
|
|
||
| Get azure credentials by running the following command | ||
|
|
||
| ```sh | ||
| # replace <subscription-id> with yours. | ||
| az ad sp create-for-rbac --role="Contributor" --scopes="/subscriptions/<subscription-id>" --output json | ||
| ``` | ||
|
|
||
| And fill the values with the result you got into the configmap | ||
|
|
||
| ```yaml | ||
| apiVersion: v1 | ||
| data: | ||
| ClientID: <client-id> | ||
| ClientSecret: <client-secret> | ||
| ResourceGroup: <resource-group> | ||
| SubscriptionID: <subscription-id> | ||
| TenantID: <tenand-id> | ||
| ScaleSetName: <scale-set-name> | ||
| kind: ConfigMap | ||
| metadata: | ||
| name: cluster-autoscaler-azure | ||
| namespace: kube-system | ||
| ``` | ||
| Create the configmap by running | ||
| ```sh | ||
| kubectl create -f cluster-autoscaler-azure-configmap.yaml | ||
| ``` | ||
|
|
||
| ## Deployment | ||
|
|
||
| ```yaml | ||
| apiVersion: extensions/v1beta1 | ||
| kind: Deployment | ||
| metadata: | ||
| name: cluster-autoscaler | ||
| namespace: kube-system | ||
| labels: | ||
| app: cluster-autoscaler | ||
| spec: | ||
| replicas: 1 | ||
| selector: | ||
| matchLabels: | ||
| app: cluster-autoscaler | ||
| template: | ||
| metadata: | ||
| labels: | ||
| app: cluster-autoscaler | ||
| spec: | ||
| containers: | ||
| - image: feisky/cluster-autoscaler:dev | ||
| name: cluster-autoscaler | ||
| resources: | ||
| limits: | ||
| cpu: 100m | ||
| memory: 300Mi | ||
| requests: | ||
| cpu: 100m | ||
| memory: 300Mi | ||
| env: | ||
| - name: ARM_SUBSCRIPTION_ID | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: SubscriptionID | ||
| - name: ARM_RESOURCE_GROUP | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: ResourceGroup | ||
| - name: ARM_TENANT_ID | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: TenantID | ||
| - name: ARM_CLIENT_ID | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: ClientID | ||
| - name: ARM_CLIENT_SECRET | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: ClientSecret | ||
| - name: ARM_SCALE_SET_NAME | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: ScaleSetName | ||
| command: | ||
| - ./cluster-autoscaler | ||
| - --v=4 | ||
| - --cloud-provider=azure | ||
| - --skip-nodes-with-local-storage=false | ||
| - --nodes="1:10:$(ARM_SCALE_SET_NAME)" | ||
| volumeMounts: | ||
| - name: ssl-certs | ||
| mountPath: /etc/ssl/certs/ca-certificates.crt | ||
| readOnly: true | ||
| imagePullPolicy: "Always" | ||
| volumes: | ||
| - name: ssl-certs | ||
| hostPath: | ||
| path: "/etc/ssl/certs/ca-certificates.crt" | ||
| ``` | ||
| ## Deploy in master node | ||
| To run a CA pod in master node - CA deployment should tolerate the master `taint` and `nodeSelector` should be used to schedule the pods in master node. | ||
|
|
||
| ```yaml | ||
| apiVersion: extensions/v1beta1 | ||
| kind: Deployment | ||
| metadata: | ||
| name: cluster-autoscaler | ||
| namespace: kube-system | ||
| labels: | ||
| app: cluster-autoscaler | ||
| spec: | ||
| replicas: 1 | ||
| selector: | ||
| matchLabels: | ||
| app: cluster-autoscaler | ||
| template: | ||
| metadata: | ||
| labels: | ||
| app: cluster-autoscaler | ||
| spec: | ||
| tolerations: | ||
| - effect: NoSchedule | ||
| key: node-role.kubernetes.io/master | ||
| nodeSelector: | ||
| kubernetes.io/role: master | ||
| containers: | ||
| - image: feisky/cluster-autoscaler:dev | ||
| name: cluster-autoscaler | ||
| resources: | ||
| limits: | ||
| cpu: 100m | ||
| memory: 300Mi | ||
| requests: | ||
| cpu: 100m | ||
| memory: 300Mi | ||
| env: | ||
| - name: ARM_SUBSCRIPTION_ID | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: SubscriptionID | ||
| - name: ARM_RESOURCE_GROUP | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: ResourceGroup | ||
| - name: ARM_TENANT_ID | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: TenantID | ||
| - name: ARM_CLIENT_ID | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: ClientID | ||
| - name: ARM_CLIENT_SECRET | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: ClientSecret | ||
| - name: ARM_SCALE_SET_NAME | ||
| valueFrom: | ||
| configMapKeyRef: | ||
| name: cluster-autoscaler-azure | ||
| key: ScaleSetName | ||
| command: | ||
| - ./cluster-autoscaler | ||
| - --v=4 | ||
| - --cloud-provider=azure | ||
| - --skip-nodes-with-local-storage=false | ||
| - --nodes="1:10:$(ARM_SCALE_SET_NAME)" | ||
| volumeMounts: | ||
| - name: ssl-certs | ||
| mountPath: /etc/ssl/certs/ca-certificates.crt | ||
| readOnly: true | ||
| imagePullPolicy: "Always" | ||
| volumes: | ||
| - name: ssl-certs | ||
| hostPath: | ||
| path: "/etc/ssl/certs/ca-certificates.crt" | ||
| ``` |
Oops, something went wrong.