Improve usage details on overriding USER command in Docker run reference page

Signed-off-by: Sian Lerk Lau <kiawin@gmail.com>
This commit is contained in:
Sian Lerk Lau
2017-06-02 00:07:28 +00:00
committed by Tibor Vass
parent a015293ff7
commit 7c85fb1665
+4 -1
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@@ -1429,7 +1429,10 @@ The developer can set a default user to run the first process with the
Dockerfile `USER` instruction. When starting a container, the operator can override
the `USER` instruction by passing the `-u` option.
-u="": Username or UID
-u="", --user="": Sets the username or UID used and optionally the groupname or GID for the specified command.
The followings examples are all valid:
--user=[ user | user:group | uid | uid:gid | user:gid | uid:group ]
> **Note:** if you pass a numeric uid, it must be in the range of 0-2147483647.