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reference/run: Some editorial changes
Based on the suggestions from @moxiegirl, some changes to make the wording more clear.
Signed-off-by: Kai Blin <kai@samba.org>
(cherry picked from commit ba29d31c9c)
Conflicts:
docs/reference/run.md
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@@ -1142,14 +1142,17 @@ volume mounted on the host).
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### USER
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The default user within a container is `root` (id = 0), but if the
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developer created additional users, those are accessible too. The
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developer can set a default user to run the first process with the
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Dockerfile `USER` instruction, but the operator can override it:
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`root` (id = 0) is the default user within a container. The image developer can
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create additional users. Those users are accessible by name. When passing a numeric
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ID, the user does not have to exist in the container.
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The developer can set a default user to run the first process with the
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Dockerfile `USER` instruction. When starting a container, the operator can override
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the `USER` instruction by passing the `-u` option.
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-u="": Username or UID
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> **Note:** if you pass numeric uid, it must be in range 0-2147483647.
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> **Note:** if you pass a numeric uid, it must be in the range of 0-2147483647.
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### WORKDIR
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