Master StatefulSet master-0 master-1 Greenplum Cluster Namespace: default Kubernetes Cluster Primary StatefulSet segment-a-0 segment-a-1 Mirror StatefulSet segment-b-0 segment-b-1 Master StatefulSet master-0 master-1 Greenplum Cluster Namespace: default Kubernetes Cluster Primary StatefulSet segment-a-0 segment-a-1 Mirror StatefulSet segment-b-0 segment-b-1 Master StatefulSet master-0 master-1 Greenplum Cluster Namespace: default Kubernetes Cluster Primary StatefulSet segment-a-0 segment-a-1 Mirror StatefulSet segment-b-0 segment-b-1

lib or tools as Deployment: – CouchDB – Redis – Zookeeper – Nginx StatefulSet/DaemonSet • StatefulSet is the workload API object used to manage stateful applications. Manages the deployment (or some) Nodes run a copy of a Pod • In OpenWhisk, we deploy strictly mangaged objects as StatefulSet or DaemonSet: – Controller – Invoker – Kafka Jobs • A job creates one or more pods

8123:32351/TCP,9000:32694/TCP 38s NAME DESIRED CURRENT AGE statefulset.apps/chi-demo-01-demo-0-0 1 1 37s Next let’s add a shard apiVersion: "clickhouse NAME DESIRED CURRENT AGE statefulset.apps/chi-demo-01-demo-0-0 1 1 2m statefulset.apps/chi-demo-01-demo-1-0 1 1 33s How to access

to proxy my Pod replicas Ingress I want to expose my Services DaemonSet I run as daemon StatefulSet I am stateful Job I only run for once CronJob I run periodically ConfigMap I read configure to proxy my Pod replicas Ingress I want to expose my Services DaemonSet I run as daemon StatefulSet I am stateful Job I only run for once CronJob I run periodically ConfigMap I read configure

updates. During the upgrade, the pods in each Deployment and StatefulSet are upgraded one at a time. The remaining pods in that Deployment or StatefulSet remain operational. This enables Contrail controller upgrades

Min. 16 and Max. 64GB, in 1GB increments 社区兼容 Kubernetes compatible • Workload: Deployment, StatefulSet, Job, Bare Pod • Pod: Restart Policies, VolumeMounts, Env, InitContainers，Heath check … •

8123:31609/TCP,9000:32086/TCP 52s NAME DESIRED CURRENT AGE statefulset.apps/chi-a82946-2946-0-0 1 1 52s Next let’s add a shard apiVersion: "clickhouse

one ● Operator’s fundamental ● Built-in controller examples: ○ ReplicaSert ○ Deployment ○ StatefulSet ○ JobOperators ● Concept was introduced in 2016 by the CoreOS ● Operators are software extensions

将自动填充该字段。但 CRD 清单 spec 中没有的几个字段需要用户输入： description：CRD 描述。 resources：CRD 利用的任何 Kubernetes 资源，如 Pod 和 StatefulSet 对 象。 specDescriptors：用于 Operator 输入和输出的 UI 提示。 字段 字段 描述 描述 表 表 5.8. 可 可选的 的 CSV 字段 字段 字段 字段 resources: - kind: Service name: '' version: v1 - kind: StatefulSet name: '' version: v1beta2 - kind: Pod name: '' 字段。 您必须在定义 pod spec 或 pod 模板 spec 的所有 Kubernetes 清单中设置节点关 联性规则，包括 Pod、Deployment、DaemonSet 和 StatefulSet 等对象。 Kubernetes 清 清单示例 示例 2. 在 Kubernetes 清单中设置所需的节点关联性规则，以定义 pod spec 和 pod 模板 spec 对象，如 下例所示：

server: export KUBECONFIG=/snap/microk8s/current/client.config Install etcd Install etcd as a StatefulSet into your new Kubernetes cluster. kubectl create -f https://raw.githubusercontent.com/cilium/cilium/v1 com/cilium/cilium/v1.5/ex service/kafka created ciliumnetworkpolicy.cilium.io/kafka-authaudit created statefulset.apps/kafka-v1 created Wait un�l the kafka-v1-0 pod is ready, i.e. un�l it has a READY count