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Add a little more clarification about --link 

Signed-off-by: Misty Stanley-Jones <misty@docker.com>
This commit is contained in:
Misty Stanley-Jones 2016-11-17 14:54:22 -08:00
parent 00b4a1ab00
commit d27ac5e970
1 changed files with 4 additions and 1 deletions
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5
engine/userguide/networking/default_network/dockerlinks.md
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@ -21,7 +21,10 @@ detail on container linking in default `bridge` network.
>**Warning**: The `--link` flag is a deprecated legacy feature of Docker. It may eventually
be removed. Unless you absolutely need to continue using it, we recommend that you use
user-defined networks to facilitate communication between two containers instead of using
`--link`.
`--link`. One feature that user-defined networks do not support that you can do
with `--link` is sharing environmental variables between containers. However,
you can use other mechanisms such as volumes to share environment variables
between containers in a more controlled way.
## Connect using network port mapping