docs: add faq entry about using external etcd cluster
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@@ -140,6 +140,17 @@ chosen, but it was also somewhat arbitrary. If there is available interest,
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good reasoning, *and* patches, then we would consider either switching or
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good reasoning, *and* patches, then we would consider either switching or
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supporting both, but this is not a high priority at this time.
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supporting both, but this is not a high priority at this time.
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###Can I use an existing etcd cluster instead of the automatic embedded servers?
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Yes, it's possible to use an existing etcd cluster instead of the automatic,
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elastic embedded etcd servers. To do so, simply point to the cluster with the
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`--seeds` variable, the same way you would if you were seeding a new member to
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an existing mgmt cluster.
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The downside to this approach is that you won't benefit from the automatic
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elastic nature of the embedded etcd servers, and that you're responsible if you
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accidentally break your etcd cluster, or if you use an unsupported version.
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###You didn't answer my question, or I have a question!
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###You didn't answer my question, or I have a question!
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It's best to ask on [IRC](https://webchat.freenode.net/?channels=#mgmtconfig)
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It's best to ask on [IRC](https://webchat.freenode.net/?channels=#mgmtconfig)
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