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Add .CreatedAt placeholder for docker network ls --format

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This fix tries to add a placeholder `.CreatedAt` for Go
format template in `docker network ls --format`.

While working on 29226, I noticed that it is not possible to
display network's creation time in `docker network ls`, with or
without `--format`.

We are able to find the timestamp through `docker network inspect` though.

However, as we allows networks to be pruned based on the timestamp
(see 29226), showing the timestamp in `docker network ls --format`
would be much useful now.

This fix adds the `.CreatedAt` placeholder for `docker network ls --format`.
The default output was not changed for `docker network ls --format`.

A test case for unit tests has been added.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
This commit is contained in:
Yong Tang 2017-01-04 15:17:54 -08:00
parent bcf70b309b
commit 0ad02c6108
3 changed files with 31 additions and 14 deletions
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5
cli/command/formatter/network.go
View file

@ -115,3 +115,8 @@ func (c *networkContext) Label(name string) string {
}
return c.n.Labels[name]
}
func (c *networkContext) CreatedAt() string {
c.AddHeader(createdAtHeader)
return c.n.Created.String()
}

19
cli/command/formatter/network_test.go
View file

@ -5,6 +5,7 @@ import (
"encoding/json"
"strings"
"testing"
"time"
"github.com/docker/docker/api/types"
"github.com/docker/docker/pkg/stringid"
@ -142,14 +143,24 @@ network_id: networkID2
Context{Format: NewNetworkFormat("{{.Name}}", false)},
`foobar_baz
foobar_bar
`,
},
// Custom Format with CreatedAt
{
Context{Format: NewNetworkFormat("{{.Name}} {{.CreatedAt}}", false)},
`foobar_baz 2016-01-01 00:00:00 +0000 UTC
foobar_bar 2017-01-01 00:00:00 +0000 UTC
`,
},
}
timestamp1, _ := time.Parse("2006-01-02", "2016-01-01")
timestamp2, _ := time.Parse("2006-01-02", "2017-01-01")
for _, testcase := range cases {
networks := []types.NetworkResource{
{ID: "networkID1", Name: "foobar_baz", Driver: "foo", Scope: "local"},
{ID: "networkID2", Name: "foobar_bar", Driver: "bar", Scope: "local"},
{ID: "networkID1", Name: "foobar_baz", Driver: "foo", Scope: "local", Created: timestamp1},
{ID: "networkID2", Name: "foobar_bar", Driver: "bar", Scope: "local", Created: timestamp2},
}
out := bytes.NewBufferString("")
testcase.context.Output = out
@ -168,8 +179,8 @@ func TestNetworkContextWriteJSON(t *testing.T) {
{ID: "networkID2", Name: "foobar_bar"},
}
expectedJSONs := []map[string]interface{}{
{"Driver": "", "ID": "networkID1", "IPv6": "false", "Internal": "false", "Labels": "", "Name": "foobar_baz", "Scope": ""},
{"Driver": "", "ID": "networkID2", "IPv6": "false", "Internal": "false", "Labels": "", "Name": "foobar_bar", "Scope": ""},
{"Driver": "", "ID": "networkID1", "IPv6": "false", "Internal": "false", "Labels": "", "Name": "foobar_baz", "Scope": "", "CreatedAt": "0001-01-01 00:00:00 +0000 UTC"},
{"Driver": "", "ID": "networkID2", "IPv6": "false", "Internal": "false", "Labels": "", "Name": "foobar_bar", "Scope": "", "CreatedAt": "0001-01-01 00:00:00 +0000 UTC"},
}
out := bytes.NewBufferString("")

3
docs/reference/commandline/network_ls.md
View file

@ -183,7 +183,7 @@ using a Go template.
Valid placeholders for the Go template are listed below:
Placeholder | Description
------------|------------------------------------------------------------------------------------------
-------------|------------------------------------------------------------------------------------------
`.ID` | Network ID
`.Name` | Network name
`.Driver` | Network driver
@ -192,6 +192,7 @@ Placeholder | Description
`.Internal` | Whether the network is internal or not.
`.Labels` | All labels assigned to the network.
`.Label` | Value of a specific label for this network. For example `{{.Label "project.version"}}`
`.CreatedAt` | Time when the network was created
When using the `--format` option, the `network ls` command will either
output the data exactly as the template declares or, when using the