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Add containers’ networks to /containers/json 

After addition of multi-host networking in Docker 1.9, Docker Remote
API is still returning only the network specified during creation
of the container in the “List Containers” (`/containers/json`) endpoint:

    ...
    "HostConfig": {
      "NetworkMode": "default"
    },

The list of networks containers are attached to is only available at
Get Container (`/containers/<id>/json`) endpoint.
This does not allow applications utilizing multi-host networking to
be built on top of Docker Remote API.

Therefore I added a simple `"NetworkSettings"` section to the
`/containers/json` endpoint. This is not identical to the NetworkSettings
returned in Get Container (`/containers/<id>/json`) endpoint. It only
contains a single field `"Networks"`, which is essentially the same
value shown in inspect output of a container.

This change adds the following section to the `/containers/json`:

    "NetworkSettings": {
      "Networks": {
        "bridge": {
          "EndpointID": "2cdc4edb1ded3631c81f57966563e...",
          "Gateway": "172.17.0.1",
          "IPAddress": "172.17.0.2",
          "IPPrefixLen": 16,
          "IPv6Gateway": "",
          "GlobalIPv6Address": "",
          "GlobalIPv6PrefixLen": 0,
          "MacAddress": "02:42:ac:11:00:02"
        }
      }
    }

This is of type `SummaryNetworkSettings` type, a minimal version of
`api/types#NetworkSettings`.

Actually all I need is the network name and the IPAddress fields. If folks
find this addition too big, I can create a `SummaryEndpointSettings` field
as well, containing just the IPAddress field.

Signed-off-by: Ahmet Alp Balkan <ahmetalpbalkan@gmail.com>
This commit is contained in:
Ahmet Alp Balkan 2015-12-09 20:48:50 -08:00
Родитель 10bbe0ee7c
Коммит 755f8609f6
5 изменённых файлов: 73 добавлений и 4 удалений
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7
api/types/types.go
Просмотреть файл

@ -140,6 +140,7 @@ type Container struct {
HostConfig struct {
NetworkMode string `json:",omitempty"`
}
NetworkSettings *SummaryNetworkSettings
}
// CopyConfig contains request body of Remote API:
@ -303,6 +304,12 @@ type NetworkSettings struct {
Networks map[string]*network.EndpointSettings
}
// SummaryNetworkSettings provides a summary of container's networks
// in /containers/json
type SummaryNetworkSettings struct {
Networks map[string]*network.EndpointSettings
}
// NetworkSettingsBase holds basic information about networks
type NetworkSettingsBase struct {
Bridge string

1
daemon/list.go
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@ -351,6 +351,7 @@ func (daemon *Daemon) transformContainer(container *container.Container, ctx *li
newC.Created = container.Created.Unix()
newC.Status = container.State.String()
newC.HostConfig.NetworkMode = string(container.HostConfig.NetworkMode)
newC.NetworkSettings = &types.SummaryNetworkSettings{container.NetworkSettings.Networks}
newC.Ports = []types.Port{}
for port, bindings := range container.NetworkSettings.Ports {

1
docs/reference/api/docker_remote_api.md
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@ -96,6 +96,7 @@ This section lists each version from latest to oldest. Each listing includes a
[Docker Remote API v1.22](docker_remote_api_v1.22.md) documentation
* `GET /containers/json` supports filter `isolation` on Windows.
* `GET /containers/json` now returns the list of networks of containers.
* `GET /info` Now returns `Architecture` and `OSType` fields, providing information
about the host architecture and operating system type that the daemon runs on.
* `GET /networks/(name)` now returns a `Name` field for each container attached to the network.

67
docs/reference/api/docker_remote_api_v1.22.md
Просмотреть файл

@ -57,7 +57,21 @@ List containers
"com.example.version": "1.0"
},
"SizeRw": 12288,
"SizeRootFs": 0
"SizeRootFs": 0,
"NetworkSettings": {
"Networks": {
"bridge": {
"EndpointID": "2cdc4edb1ded3631c81f57966563e5c8525b81121bb3706a9a9a3ae102711f3f",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:02"
}
}
}
},
{
"Id": "9cd87474be90",
@ -70,7 +84,22 @@ List containers
"Ports": [],
"Labels": {},
"SizeRw": 12288,
"SizeRootFs": 0
"SizeRootFs": 0,
"NetworkSettings": {
"Networks": {
"bridge": {
"EndpointID": "88eaed7b37b38c2a3f0c4bc796494fdf51b270c2d22656412a2ca5d559a64d7a",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.8",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:08"
}
}
}
},
{
"Id": "3176a2479c92",
@ -83,7 +112,22 @@ List containers
"Ports":[],
"Labels": {},
"SizeRw":12288,
"SizeRootFs":0
"SizeRootFs":0,
"NetworkSettings": {
"Networks": {
"bridge": {
"EndpointID": "8b27c041c30326d59cd6e6f510d4f8d1d570a228466f956edf7815508f78e30d",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.6",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:06"
}
}
}
},
{
"Id": "4cb07b47f9fb",
@ -96,7 +140,22 @@ List containers
"Ports": [],
"Labels": {},
"SizeRw": 12288,
"SizeRootFs": 0
"SizeRootFs": 0,
"NetworkSettings": {
"Networks": {
"bridge": {
"EndpointID": "d91c7b2f0644403d7ef3095985ea0e2370325cd2332ff3a3225c4247328e66e9",
"Gateway": "172.17.0.1",
"IPAddress": "172.17.0.5",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:11:00:05"
}
}
}
}
]

1
integration-cli/docker_api_containers_test.go
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@ -68,6 +68,7 @@ func (s *DockerSuite) TestContainerApiGetJSONNoFieldsOmitted(c *check.C) {
"Ports",
"Labels",
"Status",
"NetworkSettings",
}
// decoding into types.Container do not work since it eventually unmarshal