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feat(label-cmd): add Label cmd
Add new Label command. Labels are general key value string to each app just for administration purpose. See workflow#597
1 parent 8782839 commit 029f39e

5 files changed

Lines changed: 246 additions & 0 deletions

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‎cmd/apps.go‎

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -134,6 +134,12 @@ func (d *DeisCmd) AppInfo(appID string) error {
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return err
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}
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d.Println()
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// print the app labels
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if err = d.LabelsList(app.ID); err != nil {
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return err
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}
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d.Println()
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return nil

‎cmd/cmd.go‎

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Original file line numberDiff line numberDiff line change
@@ -52,6 +52,9 @@ type Commander interface {
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KeysList(int) error
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KeyRemove(string) error
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KeyAdd(string, string) error
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LabelsList(string) error
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LabelsSet(string, []string) error
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LabelsUnset(string, []string) error
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LimitsList(string) error
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LimitsSet(string, []string, string) error
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LimitsUnset(string, []string, string) error

‎cmd/labels.go‎

Lines changed: 120 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,120 @@
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package cmd
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import (
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"fmt"
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"github.com/deis/controller-sdk-go/api"
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"github.com/deis/controller-sdk-go/appsettings"
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"strings"
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)
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// LabelsList list app's labels
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func (d *DeisCmd) LabelsList(appID string) error {
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s, appID, err := load(d.ConfigFile, appID)
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if err != nil {
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return err
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}
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appSettings, err := appsettings.List(s.Client, appID)
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if d.checkAPICompatibility(s.Client, err) != nil {
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return err
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}
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d.Printf("=== %s Label\n", appID)
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if appSettings.Label == nil || len(appSettings.Label) == 0 {
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d.Println("No labels found.")
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} else {
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d.Println(appSettings.Label)
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}
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return nil
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}
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// LabelsSet sets labels for app
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func (d *DeisCmd) LabelsSet(appID string, labels []string) error {
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s, appID, err := load(d.ConfigFile, appID)
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if err != nil {
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return err
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}
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labelsMap, err := parseLabels(labels)
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if err != nil {
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return err
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}
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d.Printf("Applying labels on %s... ", appID)
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quit := progress(d.WOut)
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_, err = appsettings.Set(s.Client, appID, api.AppSettings{Label: labelsMap})
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quit <- true
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<-quit
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if err != nil {
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return err
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}
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d.Println("done")
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return nil
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}
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// LabelsUnset removes labels for the app.
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func (d *DeisCmd) LabelsUnset(appID string, labels []string) error {
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s, appID, err := load(d.ConfigFile, appID)
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if err != nil {
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return err
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}
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labelsMap := make(map[string]interface{})
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for _, label := range labels {
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labelsMap[label] = nil
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}
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d.Printf("Removing labels on %s... ", appID)
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quit := progress(d.WOut)
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_, err = appsettings.Set(s.Client, appID, api.AppSettings{Label: labelsMap})
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quit <- true
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<-quit
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if err != nil {
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return err
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}
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d.Println("done")
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return nil
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}
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func parseLabels(labels []string) (map[string]interface{}, error) {
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labelsMap := make(map[string]interface{})
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for _, label := range labels {
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key, value, err := parseLabel(label)
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if err != nil {
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return nil, err
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}
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labelsMap[key] = value
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}
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return labelsMap, nil
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}
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func parseLabel(label string) (string, string, error) {
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parts := strings.Split(label, "=")
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if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
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return "", "", fmt.Errorf(`%s is invalid, Must be in format key=value
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Examples: git_repo=https://github.com/deis/workflow team=frontend`, label)
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}
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return parts[0], parts[1], nil
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}

‎deis.go‎

Lines changed: 3 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -56,6 +56,7 @@ Subcommands, use 'deis help [subcommand]' to learn more::
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git manage git for applications
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healthchecks manage healthchecks for applications
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keys manage ssh keys used for 'git push' deployments
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labels manage labels of application
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limits manage resource limits for your application
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perms manage permissions for applications
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ps manage processes inside an app container
@@ -128,6 +129,8 @@ Use 'git push deis master' to deploy to an application.
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return 0
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case "keys":
130131
err = parser.Keys(argv, &cmdr)
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case "labels":
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err = parser.Labels(argv, &cmdr)
131134
case "limits":
132135
err = parser.Limits(argv, &cmdr)
133136
case "perms":

‎parser/labels.go‎

Lines changed: 114 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,114 @@
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package parser
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import (
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"github.com/deis/workflow-cli/cmd"
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docopt "github.com/docopt/docopt-go"
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)
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// Labels displays all relevant commands for `deis label`.
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func Labels(argv []string, cmdr cmd.Commander) error {
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usage := `
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Valid commands for labels:
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labels:list list application's labels
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labels:set add new application's label
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labels:unset remove application's label
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Use 'deis help [command]' to learn more.
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`
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switch argv[0] {
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case "labels:list":
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return labelsList(argv, cmdr)
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case "labels:set":
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return labelsSet(argv, cmdr)
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case "labels:unset":
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return labelsUnset(argv, cmdr)
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default:
28+
if printHelp(argv, usage) {
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return nil
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}
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if argv[0] == "labels" {
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argv[0] = "labels:list"
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return labelsList(argv, cmdr)
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}
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PrintUsage(cmdr)
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return nil
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}
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}
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func labelsList(argv []string, cmdr cmd.Commander) error {
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usage := `
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Prints a list of labels of the application.
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Usage: deis labels:list [options]
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Options:
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-a --app=<app>
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the uniquely identifiable name for the application.
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`
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args, err := docopt.Parse(usage, argv, true, "", false, true)
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if err != nil {
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return err
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}
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return cmdr.LabelsList(safeGetValue(args, "--app"))
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}
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func labelsSet(argv []string, cmdr cmd.Commander) error {
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usage := `
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Sets labels for an application.
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A label is a key/value pair used to label an application. This label is a general information for deis user.
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Mostly used for administraton/maintenance information, note for application. This information isn't send to scheduler.
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Usage: deis labels:set [options] <key>=<value>...
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Arguments:
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<key> the label key, for example: "git_repo" or "team"
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<value> the label value, for example: "https://github.com/deis/workflow" or "frontend"
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Options:
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-a --app=<app>
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the uniquely identifiable name for the application.
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`
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80+
args, err := docopt.Parse(usage, argv, true, "", false, true)
81+
if err != nil {
82+
return err
83+
}
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app := safeGetValue(args, "--app")
86+
tags := args["<key>=<value>"].([]string)
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return cmdr.LabelsSet(app, tags)
89+
}
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91+
func labelsUnset(argv []string, cmdr cmd.Commander) error {
92+
usage := `
93+
Unsets labels for an application.
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Usage: deis labels:unset [options] <key>...
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Arguments:
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<key> the label key to unset, for example: "git_repo" or "team"
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Options:
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-a --app=<app>
102+
the uniquely identifiable name for the application.
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`
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args, err := docopt.Parse(usage, argv, true, "", false, true)
106+
if err != nil {
107+
return err
108+
}
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110+
app := safeGetValue(args, "--app")
111+
tags := args["<key>"].([]string)
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113+
return cmdr.LabelsUnset(app, tags)
114+
}

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