Kubespray Operator

[riverzhang]

What would you like to be added:
This issue talk about for defining the kubespray operator, a tool for enabling declarative control of kubespray workflows, automating the execution and the orchestration of workflow tasks across existing nodes in a cluster or install a new cluster.
Why is this needed:
it is a kubernetes operator deploy in meta kubernetes and manage all kubernetes clusters(create、scale、delete、upgrade、 fault self-healing, etc.）
Tracking issue for tasks.

• Kubespray Operator Design document
• Create a new Kubespray Operator project?
• Support etcd 3.4.x
• Redeploy kubernetes Certificates
• Offline Environment
• Split kubespray ansible tasks, each repeatable configuration, Including etcd, container engine, network plugin etc
• Change configuration in an existing cluster, base of ansible and kubeadm
• Arm support
• Use kubebuilder 2.0 to create operator framework
• kubespray-cli is a command line tool written in Go,Base of asnbile and kubeadm. example tk8
• First support bare metal, then cloud platforms.
• Switch to ComponetConfig in the future, Make it easy for a component to correctly adopt ComponentConfig (encoding/decoding/flag merging).

[mattymo]

Ideally it should implement k8s cluster API or be as close as possible to it. I think it can start in contrib/ directory, but if it gets larger, we will decide where to locate it.

[xiaohuanxj]

Redeploy kubernetes Certificates

[riverzhang]

kubernetes/kubeadm#581

[jseguillon]

FYI : an Ansible Operator already exists => https://github.com/operator-framework/operator-sdk . May be a good starter to write down this kubespray operator ?

[fejta-bot]

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[riverzhang]

@jseguillon Thanks，awesome.

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[k8s-ci-robot]

@fejta-bot: Closing this issue.

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[panpan0000]

@riverzhang

"kubean" is a operator for kubespray , providing declarative CRD to manage cluster life cycle.

you can find it here https://github.com/kubean-io/kubean