Add OomScoreAdj to configure container oom killer preferences

libcontainer v0.0.4 introduces setting `/proc/self/oom_score_adj` to
better tune oom killing preferences for container process. This patch
simply integrates OomScoreAdj libcontainer's config option and adjust
the cli with this new option.

Signed-off-by: Antonio Murdaca <amurdaca@redhat.com>
Signed-off-by: Antonio Murdaca <runcom@redhat.com>

contrib/completion/bash/docker

@@ -1389,6 +1389,7 @@ _docker_run() {
 		--memory-reservation
 		--name
 		--net
+		--oom-score-adj
 		--pid
 		--publish -p
 		--restart

contrib/completion/zsh/_docker

@@ -482,6 +482,7 @@ __docker_subcommand() {
         "($help)--name=[Container name]:name: "
         "($help)--net=[Connect a container to a network]:network mode:(bridge none container host)"
         "($help)--oom-kill-disable[Disable OOM Killer]"
+        "($help)--oom-score-adj[Tune the host's OOM preferences for containers (accepts -1000 to 1000)]"
         "($help -P --publish-all)"{-P,--publish-all}"[Publish all exposed ports]"
         "($help)*"{-p=,--publish=}"[Expose a container's port to the host]:port:_ports"
         "($help)--pid=[PID namespace to use]:PID: "

docs/reference/commandline/create.md

@@ -58,6 +58,7 @@ Creates a new container.
       --name=""                     Assign a name to the container
       --net="default"               Set the Network mode for the container
       --oom-kill-disable=false      Whether to disable OOM Killer for the container or not
+      --oom-score-adj=0             Tune the host's OOM preferences for containers (accepts -1000 to 1000)
       -P, --publish-all=false       Publish all exposed ports to random ports
       -p, --publish=[]              Publish a container's port(s) to the host
       --pid=""                      PID namespace to use

docs/reference/commandline/run.md

@@ -62,6 +62,7 @@ parent = "smn_cli"
                                     'host': use the host network stack inside the container
                                     'NETWORK': connects the container to user-created network using `docker network create` command
       --oom-kill-disable=false      Whether to disable OOM Killer for the container or not
+      --oom-score-adj=0             Tune the host's OOM preferences for containers (accepts -1000 to 1000)
       -P, --publish-all=false       Publish all exposed ports to random ports
       -p, --publish=[]              Publish a container's port(s) to the host
       --pid=""                      PID namespace to use

man/docker-create.1.md

@@ -47,6 +47,7 @@ docker-create - Create a new container
 [**--name**[=*NAME*]]
 [**--net**[=*"bridge"*]]
 [**--oom-kill-disable**[=*false*]]
+[**--oom-score-adj**[=*0*]]
 [**-P**|**--publish-all**[=*false*]]
 [**-p**|**--publish**[=*[]*]]
 [**--pid**[=*[]*]]
@@ -234,6 +235,9 @@ This value should always larger than **-m**, so you should always use this with
 **--oom-kill-disable**=*true*|*false*
 	Whether to disable OOM Killer for the container or not.
 
+**--oom-score-adj**=""
+    Tune the host's OOM preferences for containers (accepts -1000 to 1000)
+
 **-P**, **--publish-all**=*true*|*false*
    Publish all exposed ports to random ports on the host interfaces. The default is *false*.
 

man/docker-run.1.md

@@ -48,6 +48,7 @@ docker-run - Run a command in a new container
 [**--name**[=*NAME*]]
 [**--net**[=*"bridge"*]]
 [**--oom-kill-disable**[=*false*]]
+[**--oom-score-adj**[=*0*]]
 [**-P**|**--publish-all**[=*false*]]
 [**-p**|**--publish**[=*[]*]]
 [**--pid**[=*[]*]]
@@ -346,6 +347,9 @@ and foreground Docker containers.
 **--oom-kill-disable**=*true*|*false*
    Whether to disable OOM Killer for the container or not.
 
+**--oom-score-adj**=""
+   Tune the host's OOM preferences for containers (accepts -1000 to 1000)
+
 **-P**, **--publish-all**=*true*|*false*
    Publish all exposed ports to random ports on the host interfaces. The default is *false*.