问题描述
我想使用调度程序在 GCP 上启动和停止 Kubernetes。我们如何在特定时间使用玉米调度程序将节点数量减少到零,并在使用 cron 表达式时再次将其改回所需数量?
解决方法
似乎 GKE Auto Scale Down for Fun and Profit 拥有您需要的一切,除了用于恢复 3 个节点的反之亦然。但我相信你会做到的。已为您测试,这是可行的解决方案。
gcloud beta scheduler jobs list
ID LOCATION SCHEDULE (TZ) TARGET_TYPE STATE
gke-cluster-auto-scale-down australia-southeast1 0 */1 * * * (Australia/Melbourne) HTTP ENABLED
- 启用 Google Cloud Scheduler(已启用 GKE):
gcloud services enable cloudscheduler.googleapis.com
2)自旋测试集群:
gcloud beta container clusters create vvr \
--zone="australia-southeast1-a" \
--machine-type="n1-standard-1" \
--num-nodes="3" \
--preemptible \
--no-user-output-enabled \
- 创建自定义角色
gcloud iam roles create gke.scheduler \
--project ${PROJECT_ID} \
--title "Role GKE Scheduler" \
--description "Managing the scaling of GKE nodes" \
--permissions container.clusters.update \
--stage GA
- 创建服务帐户
gcloud beta iam service-accounts create gke-scheduler \
--description "managing scheduling of worker nodes on gke" \
--display-name "gke-scheduler"
- 创建 IAM 角色
gcloud projects add-iam-policy-binding ${PROJECT_ID} \
--member serviceAccount:gke-scheduler@${PROJECT_ID}.iam.gserviceaccount.com \
--role projects/${PROJECT_ID}/roles/gke.scheduler
- 创建 Cloud Scheduler 作业,将节点数减少到
"nodeCount":0
cloud beta scheduler jobs create http gke-cluster-auto-scale-down \
--schedule "0 */1 * * *" \
--uri=https://container.googleapis.com/v1beta1/projects/${PROJECT_ID}/zones/australia-southeast1-a/clusters/vvr/nodePools/default-pool/setSize \
--message-body '{"nodeCount":0}' \
--time-zone=Australia/Melbourne \
--oauth-service-account-email gke-scheduler@${PROJECT_ID}.iam.gserviceaccount.com
祝你好运