Make it possible to deploy a cluster with completely external etcd

[vladimir-avinkin]

What would you like to be added:
Title says it all. Stacked deployment of control plane nodes with etcd masters is not always a desirable configuration. And you can't always deploy etcd by a kubespray on different compute nodes if they are managed by a different scheduling environment.
Why is this needed:
It would allow for more flexible cluster setups and would make kubespray more modular

[fejta-bot]

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/lifecycle stale

[vladimir-avinkin]

Not sure if it's useful to keep this open, since it has been mentioned in the above linked discussion.
So if not - let me know and i will stop removing stale labels

/remove-lifecycle stale

[fejta-bot]

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/lifecycle stale

[vladimir-avinkin]

/remove-lifecycle stale

[fejta-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

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/lifecycle stale

[vladimir-avinkin]

/remove-lifecycle stale

[oomichi]

We can deploy etcd on different nodes with inventory file like:

[kube_control_plane]
node1
node2
node3

[etcd]
node4
node5
node6

[kube-node]
node7
node8
node9
node10
node11

Or do we want to deploy Kubernetes cluster with the existing etcd which is deployed before running Kubespray?

[oomichi]

/cc @oomichi

[vladimir-avinkin]

do we want to deploy Kubernetes cluster with the existing etcd which is deployed before running Kubespray?

Exactly

[k8s-triage-robot]

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/lifecycle stale

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/lifecycle rotten

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/close

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue.

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/close

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[sathieu]

/reopen

[k8s-ci-robot]

@sathieu: You can't reopen an issue/PR unless you authored it or you are a collaborator.

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/reopen

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[sathieu]

@floryut Thanks for reopening. I can work on this, but I don't know which design to choose (it must be ready to use and secure).

[k8s-triage-robot]

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/close

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue.

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
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/close

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