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delete.go
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delete.go
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package main
import (
"errors"
"fmt"
"io"
"github.com/spf13/cobra"
"golang.org/x/net/context"
"google.golang.org/grpc"
"k8s.io/helm/pkg/helm"
"github.com/Azure/draft/pkg/draft/local"
"github.com/Azure/draft/pkg/storage/kube/configmap"
)
const deleteDesc = `This command deletes an application from your Kubernetes environment.`
type deleteCmd struct {
appName string
out io.Writer
}
func newDeleteCmd(out io.Writer) *cobra.Command {
dc := &deleteCmd{
out: out,
}
cmd := &cobra.Command{
Use: "delete [app]",
Short: "delete an application",
Long: deleteDesc,
RunE: func(cmd *cobra.Command, args []string) error {
if len(args) > 0 {
dc.appName = args[0]
}
return dc.run()
},
}
return cmd
}
func (d *deleteCmd) run() error {
var name string
if d.appName != "" {
name = d.appName
} else {
deployedApp, err := local.DeployedApplication(draftToml, defaultDraftEnvironment())
if err != nil {
return errors.New("Unable to detect app name\nPlease pass in the name of the application")
}
name = deployedApp.Name
}
//TODO: replace with serverside call
if err := Delete(name); err != nil {
return err
}
msg := "app '" + name + "' deleted"
fmt.Fprintln(d.out, msg)
return nil
}
// Delete uses the helm client to delete an app with the given name
//
// Returns an error if the command failed.
func Delete(app string) error {
// set up helm client
client, config, err := getKubeClient(kubeContext)
if err != nil {
return fmt.Errorf("Could not get a kube client: %s", err)
}
helmClient, err := setupHelm(client, config, tillerNamespace)
if err != nil {
return err
}
// delete helm release
_, err = helmClient.DeleteRelease(app, helm.DeletePurge(true))
if err != nil {
return errors.New(grpc.ErrorDesc(err))
}
// delete Draft storage for app
store := configmap.NewConfigMaps(client.CoreV1().ConfigMaps(tillerNamespace))
if _, err := store.DeleteBuilds(context.Background(), app); err != nil {
return err
}
return nil
}