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Add Networks placeholder to ps --format 

Passing {{.Networks}} to the format parameter will prompt ps to
display all the networks the container is connected to.

Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
This commit is contained in:
Kenfe-Mickael Laventure 2016-10-19 15:09:42 -07:00
parent 06ebd4517d
commit 08ac5a3039
3 changed files with 25 additions and 2 deletions
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7
command/container/list.go
View File

@ -70,6 +70,13 @@ func (p *preProcessor) Size() bool {
return true
}
// Networks does nothing but return true.
// It is needed to avoid the template check to fail as this field
// doesn't exist in `types.Container`
func (p *preProcessor) Networks() bool {
return true
}
func buildContainerListOptions(opts *psOptions) (*types.ContainerListOptions, error) {
options := &types.ContainerListOptions{
All: opts.all,

16
command/formatter/container.go
View File

@ -24,6 +24,7 @@ const (
portsHeader = "PORTS"
mountsHeader = "MOUNTS"
localVolumes = "LOCAL VOLUMES"
networksHeader = "NETWORKS"
)
// NewContainerFormat returns a Format for rendering using a Context
@ -217,3 +218,18 @@ func (c *containerContext) LocalVolumes() string {
return fmt.Sprintf("%d", count)
}
func (c *containerContext) Networks() string {
c.AddHeader(networksHeader)
if c.c.NetworkSettings == nil {
return ""
}
networks := []string{}
for k := range c.c.NetworkSettings.Networks {
networks = append(networks, k)
}
return strings.Join(networks, ",")
}

4
command/formatter/container_test.go
View File

@ -333,8 +333,8 @@ func TestContainerContextWriteJSON(t *testing.T) {
}
expectedCreated := time.Unix(unix, 0).String()
expectedJSONs := []map[string]interface{}{
{"Command": "\"\"", "CreatedAt": expectedCreated, "ID": "containerID1", "Image": "ubuntu", "Labels": "", "LocalVolumes": "0", "Mounts": "", "Names": "foobar_baz", "Ports": "", "RunningFor": "About a minute", "Size": "0 B", "Status": ""},
{"Command": "\"\"", "CreatedAt": expectedCreated, "ID": "containerID2", "Image": "ubuntu", "Labels": "", "LocalVolumes": "0", "Mounts": "", "Names": "foobar_bar", "Ports": "", "RunningFor": "About a minute", "Size": "0 B", "Status": ""},
{"Command": "\"\"", "CreatedAt": expectedCreated, "ID": "containerID1", "Image": "ubuntu", "Labels": "", "LocalVolumes": "0", "Mounts": "", "Names": "foobar_baz", "Networks": "", "Ports": "", "RunningFor": "About a minute", "Size": "0 B", "Status": ""},
{"Command": "\"\"", "CreatedAt": expectedCreated, "ID": "containerID2", "Image": "ubuntu", "Labels": "", "LocalVolumes": "0", "Mounts": "", "Names": "foobar_bar", "Networks": "", "Ports": "", "RunningFor": "About a minute", "Size": "0 B", "Status": ""},
}
out := bytes.NewBufferString("")
err := ContainerWrite(Context{Format: "{{json .}}", Output: out}, containers)