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Allow setting ulimits for containers 

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
This commit is contained in:
Brian Goff 2015-02-11 14:21:38 -05:00 committed by Tibor Vass
parent 9574a12bad
commit d20a7f0d85
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docs/sources/reference/commandline/cli.md
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@ -109,6 +109,7 @@ expect an integer, and they can only be specified once.
--tlskey="~/.docker/key.pem" Path to TLS key file --tlskey="~/.docker/key.pem" Path to TLS key file
--tlsverify=false Use TLS and verify the remote --tlsverify=false Use TLS and verify the remote
-v, --version=false Print version information and quit -v, --version=false Print version information and quit
--default-ulimit=[] Set default ulimit settings for containers.
Options with [] may be specified multiple times. Options with [] may be specified multiple times.
@ -404,6 +405,14 @@ This will only add the proxy and authentication to the Docker daemon's requests
your `docker build`s and running containers will need extra configuration to use your `docker build`s and running containers will need extra configuration to use
the proxy the proxy
### Default Ulimits
`--default-ulimit` allows you to set the default `ulimit` options to use for all
containers. It takes the same options as `--ulimit` for `docker run`. If these
defaults are not set, `ulimit` settings will be inheritted, if not set on
`docker run`, from the Docker daemon. Any `--ulimit` options passed to
`docker run` will overwrite these defaults.
### Miscellaneous options ### Miscellaneous options
IP masquerading uses address translation to allow containers without a public IP to talk IP masquerading uses address translation to allow containers without a public IP to talk
@ -1988,6 +1997,23 @@ For IPv6 use the `-6` flag instead of the `-4` flag. For other network
devices, replace `eth0` with the correct device name (for example `docker0` devices, replace `eth0` with the correct device name (for example `docker0`
for the bridge device). for the bridge device).
### Setting ulimits in a container
Since setting `ulimit` settings in a container requires extra privileges not
available in the default container, you can set these using the `--ulimit` flag.
`--ulimit` is specified with a soft and hard limit as such:
`<type>=<soft limit>[:<hard limit>]`, for example:
```
$ docker run --ulimit nofile=1024:1024 --rm debian ulimit -n
1024
```
>**Note:**
> If you do not provide a `hard limit`, the `soft limit` will be used for both
values. If no `ulimits` are set, they will be inherited from the default `ulimits`
set on the daemon.
## save ## save
Usage: docker save [OPTIONS] IMAGE [IMAGE...] Usage: docker save [OPTIONS] IMAGE [IMAGE...]