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Kai Qiang Wu(Kennan) f812b55692 Add network label filter support

This patch did following:

1) Make filter check logic same as `docker ps ` filters

Right now docker container logic work as following:
when same filter used like below:
 -f name=jack -f name=tom
it would get all containers name is jack or tom(it is or logic)

when different filter used like below:

 -f name=jack -f id=7d1
it would get all containers name is jack and id contains 7d1(it is and logic)

It would make sense in many user cases, but it did lack of compliate filter cases,
like "I want to get containers name is jack or id=7d1", it could work around use
(get id=7d1 containers' name and get name=jack containers, and then construct the
final containers, they could be done in user side use shell or rest API)

2) Fix one network filter bug which could include duplicate result
when use -f name=  -f id=, it would get duplicate results

3) Make id filter same as container id filter, which means match any string.
not use prefix match.

It is for consistent match logic

Closes: #21417

Signed-off-by: Kai Qiang Wu(Kennan) <wkqwu@cn.ibm.com>

2016-04-18 00:38:48 +00:00

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docker network ls

Usage:  docker network ls [OPTIONS]

Lists all the networks created by the user
  -f, --filter=[]       Filter output based on conditions provided
  --help                Print usage
  --no-trunc            Do not truncate the output
  -q, --quiet           Only display numeric IDs

Lists all the networks the Engine daemon knows about. This includes the networks that span across multiple hosts in a cluster, for example:

    $ sudo docker network ls
    NETWORK ID          NAME                DRIVER
    7fca4eb8c647        bridge              bridge
    9f904ee27bf5        none                null
    cf03ee007fb4        host                host
    78b03ee04fc4        multi-host          overlay

Use the --no-trunc option to display the full network id:

docker network ls --no-trunc
NETWORK ID                                                         NAME                DRIVER
18a2866682b85619a026c81b98a5e375bd33e1b0936a26cc497c283d27bae9b3   none                null                
c288470c46f6c8949c5f7e5099b5b7947b07eabe8d9a27d79a9cbf111adcbf47   host                host                
7b369448dccbf865d397c8d2be0cda7cf7edc6b0945f77d2529912ae917a0185   bridge              bridge              
95e74588f40db048e86320c6526440c504650a1ff3e9f7d60a497c4d2163e5bd   foo                 bridge    
63d1ff1f77b07ca51070a8c227e962238358bd310bde1529cf62e6c307ade161   dev                 bridge

Filtering

The filtering flag (-f or --filter) format is a key=value pair. If there is more than one filter, then pass multiple flags (e.g. --filter "foo=bar" --filter "bif=baz"). Multiple filter flags are combined as an OR filter. For example, -f type=custom -f type=builtin returns both custom and builtin networks.

The currently supported filters are:

id (network's id)
label (label=<key> or label=<key>=<value>)
name (network's name)
type (custom|builtin)

ID

The id filter matches on all or part of a network's ID.

The following filter matches all networks with an ID containing the 63d1ff1f77b0... string.

$ docker network ls --filter id=63d1ff1f77b07ca51070a8c227e962238358bd310bde1529cf62e6c307ade161
NETWORK ID          NAME                DRIVER
63d1ff1f77b0        dev                 bridge

You can also filter for a substring in an ID as this shows:

$ docker network ls --filter id=95e74588f40d
NETWORK ID          NAME                DRIVER
95e74588f40d        foo                 bridge

$ docker network ls --filter id=95e
NETWORK ID          NAME                DRIVER
95e74588f40d        foo                 bridge

Label

The label filter matches containers based on the presence of a label alone or a label and a value.

The following filter matches networks with the usage label regardless of its value.

$ docker network ls -f "label=usage"
NETWORK ID          NAME                DRIVER
db9db329f835        test1               bridge              
f6e212da9dfd        test2               bridge

The following filter matches containers with the usage label with the prod value.

$ docker network ls -f "label=usage=prod"
NETWORK ID          NAME                DRIVER
f6e212da9dfd        test2               bridge

Name

The name filter matches on all or part of a network's name.

The following filter matches all networks with a name containing the foobar string.

$ docker network ls --filter name=foobar
NETWORK ID          NAME                DRIVER
06e7eef0a170        foobar              bridge

You can also filter for a substring in a name as this shows:

$ docker network ls --filter name=foo
NETWORK ID          NAME                DRIVER
95e74588f40d        foo                 bridge
06e7eef0a170        foobar              bridge

Type

The type filter supports two values; builtin displays predefined networks (bridge, none, host), whereas custom displays user defined networks.

The following filter matches all user defined networks:

$ docker network ls --filter type=custom
NETWORK ID          NAME                DRIVER
95e74588f40d        foo                 bridge
63d1ff1f77b0        dev                 bridge

By having this flag it allows for batch cleanup. For example, use this filter to delete all user defined networks:

$ docker network rm `docker network ls --filter type=custom -q`

A warning will be issued when trying to remove a network that has containers attached.

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