Document spec.excludeSystemIndices #235
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Signed-off-by: Oliver Trosien oliver.trosien@zalando.de
One-line summary
Introduced in #177 but not documented in the README.
Description
Exclude ES-Operator from managing system indices. This can be controlled per EDS. To avoid this being a breaking change, the default setting is opt-in.
Added an optional setting to the EDS (spec.excludeSystemIndices). If set to true, the ES-Operator will filter out indices starting with "." (indication of an internal Elasticsearch index) when calculating shard-per-node ratio and scaling index replica counts.
It will still check all shards, even ones for system indices when draining to make sure we don't terminte a node with data on it.
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