O-ll-O commented on a change in pull request #5459:
URL: https://github.com/apache/skywalking/pull/5459#discussion_r485998563
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File path: docker/README.md
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@@ -32,6 +32,7 @@ The tag of docker image. The default value is `latest`.
### ES_VERSION
The elasticsearch version this image supports. The default value is `es6`,
available values are `es6` and `es7`.
+If the image version is 7.+,please set the value to es7.
Review comment:
This only gives the values of the two options, but does not indicate
that the purpose of these two values is to select the files needed when build
the image. This is just a kind reminder
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